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Document and Entity Information - USD ($) $ in Millions	12 Months Ended
Document and Entity Information - USD ($) $ in Millions	Dec. 31, 2015	Feb. 29, 2016	Jun. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Trading Symbol	KRO
Entity Registrant Name	KRONOS WORLDWIDE INC
Entity Central Index Key	0001257640
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		115,880,598
Entity Public Float			$ 229.7

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 92.5	$ 167.7
Restricted cash	1.8	2.2
Accounts and other receivables	218.3	260.2
Receivable from affiliate	2.5	18.0
Inventories, net	387.2	423.6
Prepaid expenses and other	8.5	8.2
Total current assets	710.8	879.9
Other assets:
Investment in TiO2 manufacturing joint venture	82.9	89.0
Marketable securities	2.4	11.1
Deferred income taxes	14.0	167.3
Other	3.1	6.1
Total other assets	102.4	273.5
Property and equipment:
Land	37.8	42.6
Buildings	197.4	220.6
Equipment	941.6	1,035.6
Mining properties	102.6	116.7
Construction in progress	29.2	24.4
Gross property and equipment	1,308.6	1,439.9
Less accumulated depreciation and amortization	879.1	960.2
Net property and equipment	429.5	479.7
Total assets	1,242.7	1,633.1
Current liabilities:
Current maturities of long-term debt	3.8	3.9
Accounts payable and accrued liabilities	172.7	202.6
Payables to affiliates	19.5	19.9
Income taxes	5.7	7.8
Total current liabilities	201.7	234.2
Noncurrent liabilities:
Long-term debt	337.2	339.7
Deferred income taxes	8.1	6.1
Accrued pension cost	202.7	237.1
Accrued postretirement benefits cost	6.7	8.1
Other	24.4	26.8
Total noncurrent liabilities	579.1	617.8
Stockholders' equity:
Common stock, $.01 par value; 240.0 shares authorized; 115.9 shares issued	1.2	1.2
Additional paid-in capital	1,398.7	1,398.6
Retained deficit	(526.0)	(282.9)
Accumulated other comprehensive loss	(412.0)	(335.8)
Total stockholders' equity	461.9	781.1
Total liabilities and stockholders' equity	1,242.7	1,633.1
Commitments and contingencies (Notes 10 and 15)

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2015	Dec. 31, 2014
Statement Of Financial Position [Abstract]
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	240,000,000	240,000,000
Common stock, shares issued	115,900,000	115,900,000

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement [Abstract]
Net sales	$ 1,348.8	$ 1,651.9	$ 1,732.4
Cost of sales	1,156.5	1,302.2	1,620.2
Gross margin	192.3	349.7	112.2
Selling, general and administrative expense	178.0	191.9	190.4
Other operating income (expense):
Currency transaction gains (losses), net	(0.1)	4.0	(3.8)
Disposition of property and equipment	(0.8)	(0.9)	(0.8)
Other expense, net	(0.9)	(0.7)	(1.1)
Corporate expense	(13.6)	(10.5)	(48.7)
Income (loss) from operations	(1.1)	149.7	(132.6)
Other income (expense):
Interest and dividend income	0.8	1.0	1.2
Securities transactions, net	(12.0)
Loss on prepayment of debt, net			(8.9)
Interest expense	(18.5)	(17.0)	(19.6)
Income (loss) before income taxes	(30.8)	133.7	(159.9)
Income tax expense (benefit)	142.8	34.5	(57.9)
Net income (loss)	$ (173.6)	$ 99.2	$ (102.0)
Net income (loss) per basic and diluted share	$ (1.50)	$ 0.86	$ (0.88)
Cash dividends per share	$ 0.60	$ 0.60	$ 0.60
Weighted average shares used in the calculation of net income (loss) per share	115.9	115.9	115.9

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net income (loss)	$ (173.6)	$ 99.2	$ (102.0)
Other comprehensive income (loss), net of tax:
Currency translation	(92.2)	(103.0)	6.7
Marketable securities	2.3	(13.7)	6.6
Interest rate swap	(2.3)
Total other comprehensive income (loss), net	(76.2)	(183.8)	45.1
Comprehensive loss	(249.8)	(84.6)	(56.9)
Defined Benefit Pension Plans
Other comprehensive income (loss), net of tax:
Defined benefit plans	16.2	(66.0)	27.9
OPEB
Other comprehensive income (loss), net of tax:
Defined benefit plans	$ (0.2)	$ (1.1)	$ 3.9

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common stock	Additional paid-in capital	Retained earnings (deficit)	Accumulated other comprehensive loss	Treasury stock
Beginning Balance at Dec. 31, 2012	$ 1,062.1	$ 1.2	$ 1,399.1	$ (141.1)	$ (197.1)
Net income (loss)	(102.0)			(102.0)
Other comprehensive income (loss), net of tax	45.1				45.1
Issuance of common stock	0.1		0.1
Dividends paid - $.60 per share	(69.5)			(69.5)
Treasury stock acquired	(0.7)					$ (0.7)
Treasury stock retired			(0.7)			$ 0.7
Ending Balance at Dec. 31, 2013	935.1	1.2	1,398.5	(312.6)	(152.0)
Net income (loss)	99.2			99.2
Other comprehensive income (loss), net of tax	(183.8)				(183.8)
Issuance of common stock	0.1		0.1
Dividends paid - $.60 per share	(69.5)			(69.5)
Ending Balance at Dec. 31, 2014	781.1	1.2	1,398.6	(282.9)	(335.8)
Net income (loss)	(173.6)			(173.6)
Other comprehensive income (loss), net of tax	(76.2)				(76.2)
Issuance of common stock	0.1		0.1
Dividends paid - $.60 per share	(69.5)			(69.5)
Ending Balance at Dec. 31, 2015	$ 461.9	$ 1.2	$ 1,398.7	$ (526.0)	$ (412.0)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash dividends per share	$ 0.60	$ 0.60	$ 0.60
Retained earnings (deficit)
Cash dividends per share	$ 0.60	$ 0.60	$ 0.60

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income (loss)	$ (173.6)	$ 99.2	$ (102.0)
Depreciation and amortization	42.1	49.2	50.2
Deferred income taxes	138.5	19.6	(67.9)
Loss on prepayment of debt, net			8.9
Securities transactions, net	12.0
Benefit plan expense greater than cash funding	5.1	0.5	9.2
Distributions from TiO2 manufacturing joint venture, net	6.5	10.6	10.9
Other, net	6.3	10.7	8.2
Change in assets and liabilities:
Accounts and other receivables	20.1	(27.8)	24.8
Inventories	(9.5)	(52.3)	222.2
Prepaid expenses	(1.6)	(0.4)	0.8
Accounts payable and accrued liabilities	(12.0)	(21.1)	9.1
Income taxes	(1.5)	6.3	(9.6)
Accounts with affiliates	19.2	(4.1)	(37.2)
Other noncurrent assets	0.3	2.6	(1.5)
Other noncurrent liabilities	0.2	(5.3)	4.3
Net cash provided by operating activities	52.1	87.7	130.4
Cash flows from investing activities:
Capital expenditures	(47.1)	(61.2)	(67.6)
Change in restricted cash	0.3	7.2	(0.5)
Other, net			(0.1)
Net cash used in investing activities	(46.8)	(54.0)	(68.2)
Indebtedness:
Borrowings	1.3	430.4	366.6
Principal payments	(3.9)	(265.2)	(588.7)
Deferred financing fees		(6.1)
Dividends paid	(69.5)	(69.5)	(69.5)
Treasury stock acquired			(0.7)
Net cash provided by (used in) financing activities	(72.1)	89.6	(292.3)
Cash and cash equivalents - net change from:
Operating, investing and financing activities	(66.8)	123.3	(230.1)
Effect of exchange rate changes on cash	(8.4)	(9.4)	1.2
Net change for the year	(75.2)	113.9	(228.9)
Balance at beginning of year	167.7	53.8	282.7
Balance at end of year	92.5	167.7	53.8
Supplemental disclosures – Cash paid for:
Interest, net of amounts capitalized	16.6	14.7	18.6
Income taxes	1.4	17.5	33.2
Accrual for capital expenditures	$ 6.8	$ 7.0	$ 7.4

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Note 1 - Summary of significant accounting policies:

Organization and basis of presentation - At December 31, 2015, Valhi, Inc. (NYSE: VHI) held approximately 50% of our outstanding common stock and NL Industries, Inc. (NYSE: NL) held approximately 30% of our common stock, Valhi owned approximately 83% of NL’s outstanding common stock and a wholly-owned subsidiary of Contran Corporation held approximately 93% of Valhi’s outstanding common stock. All of Contran’s outstanding voting stock is held by a family trust established for the benefit of Lisa K. Simmons and Serena Simmons Connelly and their children, for which Ms. Simmons and Ms. Connelly are co-trustees, or is held directly by Ms. Simmons and Ms. Connelly or entities related to them. Consequently, Ms. Simmons and Ms. Connelly may be deemed to control Contran, Valhi, NL and us.

Unless otherwise indicated, references in this report to “we,” “us” or “our” refers to Kronos Worldwide, Inc. and its subsidiaries, taken as a whole.

Management’s estimates - In preparing our financial statements in conformity with accounting principles generally accepted in the United States of America (GAAP) we are required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amount of revenues and expenses during the reporting period. Actual results may differ significantly from previously-estimated amounts under different assumptions or conditions.

Principles of consolidation - The consolidated financial statements include our accounts and those of our majority-owned subsidiaries. We have eliminated all material intercompany accounts and balances.

Translation of currencies - We translate the assets and liabilities of our subsidiaries whose functional currency is other than the U.S. dollar at year-end exchange rates, while we translate our revenues and expenses at average exchange rates prevailing during the year. We accumulate the resulting translation adjustments in stockholders’ equity as part of accumulated other comprehensive income (loss), net of related deferred income taxes. We recognize currency transaction gains and losses in income currently.

Derivatives and hedging activities - We recognize derivatives as either assets or liabilities measured at fair value. We recognize the effect of changes in the fair value of derivatives either in net income or other comprehensive income (loss), depending on the intended use of the derivative. See Note 16.

Cash and cash equivalents - We classify bank time deposits and U.S. Treasury securities purchased under short-term agreements to resell with original maturities of three months or less as cash equivalents.

Restricted cash and cash equivalents - We classify cash and cash equivalents that have been segregated or are otherwise limited in use as restricted. To the extent the restricted amount relates to a recognized liability, we classify such restricted amount as either a current or noncurrent asset to correspond with the classification of the liability. To the extent the restricted amount does not relate to a recognized liability, we classify restricted cash as a current asset.

Marketable securities and securities transactions - We carry marketable securities at fair value. Accounting Standard Codification (ASC) Topic 820, Fair Value Measurements and Disclosures, establishes a consistent framework for measuring fair value and (with certain exceptions) this framework is generally applied to all financial statement items required to be measured at fair value. The standard requires fair value measurements to be classified and disclosed in one of the following three categories:

—

Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

—

Level 2 - Quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the assets or liability; and

—

Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable.

We classify all of our marketable securities as available-for-sale and unrealized gains or losses on these securities are recognized through other comprehensive income, net of deferred income taxes, except for any decline in value we conclude is other than temporary, which is accounted for as a realized loss as a component of net income. We base realized gains and losses upon the specific identification of the securities sold.

We evaluate our investments whenever events or conditions occur to indicate that the fair value of such investments has declined below their carrying amounts. If the carrying amount for an investment declines below its historical cost basis, we evaluate all available positive and negative evidence including, but not limited to, the extent and duration of the impairment, business prospects for the investee and our intent and ability to hold the investment for a reasonable period of time sufficient for the recovery of fair value. If we determine the decline in fair value is other than temporary, the carrying amount of the investment is written down to fair value.

See Notes 6, 11 and 16.

Accounts receivable - We provide an allowance for doubtful accounts for known and estimated potential losses arising from sales to customers based on a periodic review of these accounts. See Note 3.

Inventories and cost of sales - We state inventories at the lower of cost or market, net of allowance for obsolete and slow-moving inventories. We generally base inventory costs for all inventory categories on average cost that approximates the first-in, first-out method. Inventories include the costs for raw materials, the cost to manufacture the raw materials into finished goods and overhead. Depending on the inventory’s stage of completion, our manufacturing costs can include the costs of packing and finishing, utilities, maintenance, depreciation, and salaries and benefits associated with our manufacturing process. We allocate fixed manufacturing overheads based on normal production capacity. Unallocated overhead costs resulting from periods with abnormally low production levels are charged to expense as incurred. As inventory is sold to third parties, we recognize the cost of sales in the same period that the sale occurs. We periodically review our inventory for estimated obsolescence or instances when inventory is no longer marketable for its intended use, and we record any write-down equal to the difference between the cost of inventory and its estimated net realizable value based on assumptions about alternative uses, market conditions and other factors. See Note 4.

Investment in TiO₂ manufacturing joint venture - We account for our investment in a 50%-owned manufacturing joint venture by the equity method. See Note 5.

Property and equipment and depreciation - We state property and equipment at cost, including capitalized interest on borrowings during the actual construction period of major capital projects. Capitalized interest costs were $1.5 million in 2013, $2.9 million in 2014 and $1.1 million in 2015. We compute depreciation of property and equipment for financial reporting purposes (including mining equipment) principally by the straight-line method over the estimated useful lives of the assets as follows:

Asset		Useful lives
Buildings and improvements		10 to 40 years
Machinery and equipment		3 to 20 years
Mine development costs		units-of-production

We use accelerated depreciation methods for income tax purposes, as permitted. Upon the sale or retirement of an asset, we remove the related cost and accumulated depreciation from the accounts and recognize any gain or loss in income currently.

We expense costs incurred for maintenance, repairs and minor renewals (including planned major maintenance) while we capitalize expenditures for major improvements.

We have a governmental concession with an unlimited term to operate our ilmenite mines in Norway. Mining properties consist of buildings and equipment used in our Norwegian ilmenite mining operations. While we own the land and ilmenite reserves associated with the mining operations, such land and reserves were acquired for nominal value and we have no material asset recognized for the land and reserves related to our mining operations.

We perform impairment tests when events or changes in circumstances indicate the carrying value may not be recoverable. We consider all relevant factors. We perform the impairment test by comparing the estimated future undiscounted cash flows (exclusive of interest expense) associated with the asset to the asset’s net carrying value to determine if a write-down to fair value or discounted cash flow value is required.

Long-term debt - We state long-term debt net of any unamortized original issue premium, discount or deferred financing costs. We classify amortization of deferred financing costs and any premium or discount associated with the issuance of indebtedness as interest expense and compute such amortization by either the interest method or the straight-line method over the term of the applicable issue. See Note 9.

Employee benefit plans - Accounting and funding policies for our retirement plans are described in Note 11.

Income taxes - We, Valhi and our qualifying subsidiaries are members of Contran’s consolidated U.S. federal income tax group (the Contran Tax Group) and we and certain of our qualifying subsidiaries also file consolidated income tax returns with Contran in various U.S. state jurisdictions. As a member of the Contran Tax Group, we are jointly and severally liable for the federal income tax liability of Contran and the other companies included in the Contran Tax Group for all periods in which we are included in the Contran Tax Group. See Note 15. As a member of the Contran Tax Group, we are a party to a tax sharing agreement which provides that we compute our provision for U.S. income taxes on a separate-company basis using the tax elections made by Contran. Pursuant to the tax sharing agreement, we make payments to or receive payments from Valhi in amounts we would have paid to or received from the U.S. Internal Revenue Service or the applicable state tax authority had we not been a member of the Contran Tax Group. We made net payments of income taxes to Valhi of $24.2 million in 2013 and $8.2 million in 2014, and received net income tax refunds from Valhi of $3.5 million in 2015.

We recognize deferred income tax assets and liabilities for the expected future tax consequences of temporary differences between the income tax and financial reporting carrying amounts of assets and liabilities, including investments in our subsidiaries and affiliates who are not members of the Contran Tax Group and undistributed earnings of non-U.S. subsidiaries which are not deemed to be permanently reinvested. The earnings of non-U.S. subsidiaries subject to permanent reinvestment plans aggregated $645 million at December 31, 2015. It is not practical for us to determine the amount of the unrecognized deferred income tax liability related to such earnings due to the complexities associated with the U.S. taxation on earnings of non-U.S. subsidiaries repatriated to the U.S. Deferred income tax assets and liabilities for each tax-paying jurisdiction in which we operate are netted and presented as either a noncurrent deferred income tax asset or liability, as applicable. We periodically evaluate our deferred tax assets in the various taxing jurisdictions in which we operate and adjust any related valuation allowance based on the estimate of the amount of such deferred tax assets that we believe does not meet the more-likely-than-not recognition criteria.

We record a reserve for uncertain tax positions for tax positions where we believe that it is more-likely-than-not our position will not prevail with the applicable tax authorities. The amount of the benefit associated with our uncertain tax positions that we recognize is limited to the largest amount for which we believe the likelihood of realization is greater than 50%. We accrue penalties and interest on the difference between tax positions taken on our tax returns and the amount of benefit recognized for financial reporting purposes. We classify our reserves for uncertain tax positions in a separate current or noncurrent liability, depending on the nature of the tax position. See Note 10.

Net sales - We record sales when products are shipped and title and other risks and rewards of ownership have passed to the customer. Shipping terms of products shipped are generally FOB shipping point, although in some instances shipping terms are FOB destination point (for which we do not recognize sales until the product is received by the customer) or other standard shipping terms. We state sales net of price, early payment and distributor discounts and volume rebates. We report any tax assessed by a governmental authority that we collect from our customers that is both imposed on and concurrent with our revenue-producing activities (such as sales, use, value added and excise taxes) on a net basis (meaning we do not recognize these taxes either in our revenues or in our costs and expenses).

Selling, general and administrative expense; shipping and handling costs - Selling, general and administrative expense includes costs related to marketing, sales, distribution, shipping and handling, research and development, legal, and administrative functions such as accounting, treasury and finance, and includes costs for salaries and benefits not associated with our manufacturing process, travel and entertainment, promotional materials and professional fees. We include shipping and handling costs in selling, general and administrative expense and these costs were $93 million in 2013, $95 million in 2014 and $87 million in 2015. We expense research, development and certain sales technical support costs as incurred and these costs approximated $18 million in 2013, $19 million in 2014 and $16 million in 2015. We expense advertising costs as incurred and these costs were not material in any year presented.

Geographic information

12 Months Ended

Dec. 31, 2015

Segments Geographical Areas [Abstract]

Geographic Information

Note 2 - Geographic information:

Our operations are associated with the production and sale of titanium dioxide pigments (TiO₂). TiO₂ is used to impart whiteness, brightness, opacity and durability to a wide variety of products, including paints, plastics, paper, fibers and ceramics. Additionally, TiO₂is a critical component of everyday applications, such as coatings, plastics and paper, as well as many specialty products such as inks, foods and cosmetics. At December 31, 2014 and 2015 the net assets of non-U.S. subsidiaries included in consolidated net assets approximated $380 million and $123 million, respectively.

For geographic information, we attribute net sales to the place of manufacture (point of origin) and to the location of the customer (point of destination); we attribute property and equipment to their physical location.

	Years ended December 31,
	2013			2014			2015
	(In millions)
Net sales - point of origin:
Germany	$	915.8		$	844.1		$	690.0
United States		830.4			783.1			657.8
Canada		246.5			252.3			216.9
Belgium		254.6			249.3			198.8
Norway		261.2			256.8			183.5
Eliminations		(776.1	)		(733.7	)		(598.2	)
Total	$	1,732.4		$	1,651.9		$	1,348.8

Net sales - point of destination:
Europe	$	904.6		$	882.9		$	700.4
North America		575.7			544.3			421.4
Other		252.1			224.7			227.0
Total	$	1,732.4		$	1,651.9		$	1,348.8

	December 31,
	2014		2015
	(In millions)
Identifiable assets - net property and equipment:
Germany	$	237.9	$	212.1
Belgium		88.8		80.1
Norway		82.3		69.5
Canada		61.8		53.8
Other		8.9		14.0
Total	$	479.7	$	429.5

Accounts and Other Receivables

12 Months Ended

Dec. 31, 2015

Receivables [Abstract]

Accounts and Other Receivables

Note 3 - Accounts and other receivables:

	December 31,
	2014			2015
	(In millions)
Trade receivables	$	230.9		$	194.8
Recoverable VAT and other receivables		23.4			17.8
Refundable income taxes		7.5			6.8
Allowance for doubtful accounts		(1.6	)		(1.1	)
Total	$	260.2		$	218.3

Inventories, Net

12 Months Ended

Dec. 31, 2015

Inventory Disclosure [Abstract]

Inventories, Net

Note 4 - Inventories, net:

	December 31,
	2014		2015
	(In millions)
Raw materials	$	76.0	$	75.9
Work in process		32.9		21.1
Finished products		252.5		232.4
Supplies		62.2		57.8
Total	$	423.6	$	387.2

Investment in TiO2 Manufacturing Joint Venture

12 Months Ended

Dec. 31, 2015

Equity Method Investments And Joint Ventures [Abstract]

Investment in TiO2 Manufacturing Joint Venture

Note 5 - Investment in TiO₂ manufacturing joint venture:

We own a 50% interest in Louisiana Pigment Company, L.P. (LPC). LPC is a manufacturing joint venture whose other 50%-owner is Tioxide Americas LLC (Tioxide). Tioxide is a subsidiary of Huntsman Corporation. LPC owns and operates a chloride-process TiO₂ plant in Lake Charles, Louisiana.

We and Tioxide are both required to purchase one-half of the TiO₂ produced by LPC, unless we and Tioxide agree otherwise (such as in 2015, when we purchased approximately 52% of the production from the plant). LPC operates on a break-even basis and, accordingly, we report no equity in earnings of LPC. Each owner’s acquisition transfer price for its share of the TiO₂ produced is equal to its share of the joint venture’s production costs and interest expense, if any. Our share of net cost is reported as cost of sales as the related TiO₂ acquired from LPC is sold. We report distributions we receive from LPC, which generally relate to excess cash generated by LPC from its non-cash production costs, and contributions we make to LPC, which generally relate to cash required by LPC when it builds working capital, as part of our cash flows from operating activities in our Consolidated Statements of Cash Flows. The components of our net distributions from LPC are shown in the table below.

	Years ended December 31,
	2013			2014			2015
	(In millions)
Distributions from LPC	$	70.7		$	48.0		$	48.2
Contributions to LPC		(59.8	)		(37.4	)		(41.7	)
Net distributions	$	10.9		$	10.6		$	6.5

Summary balance sheets of LPC are shown below:

	December 31,
	2014		2015
	(In millions)
ASSETS
Current assets	$	107.4	$	96.2
Property and equipment, net		110.6		110.1
Total assets	$	218.0	$	206.3

LIABILITIES AND PARTNERS' EQUITY
Other liabilities, primarily current	$	37.3	$	37.8
Partners' equity		180.7		168.5
Total liabilities and partners' equity	$	218.0	$	206.3

Summary income statements of LPC are shown below:

	Years ended December 31,
	2013		2014		2015
	(In millions)
Revenues and other income:
Kronos	$	224.5	$	193.1	$	176.5
Tioxide		224.6		193.8		162.5
Total revenues and other income		449.1		386.9		339.0

Cost and expenses:
Cost of sales		448.7		386.4		338.5
General and administrative		.4		.5		.5
Total costs and expenses		449.1		386.9		339.0
Net income	$	-	$	-	$	-

Marketable Securities

12 Months Ended

Dec. 31, 2015

Investments Debt And Equity Securities [Abstract]

Marketable Securities

Note 6 - Marketable securities:

Our marketable securities consist of investments in the publicly-traded shares of related parties: Valhi, NL and CompX International Inc. NL owns the majority of CompX’s outstanding common stock. All of our marketable securities are accounted for as available-for-sale securities, which are carried at fair value using quoted market prices in active markets for each marketable security and represent a Level 1 input within the fair value hierarchy. See Note 16. Because we have classified all of our marketable securities as available-for-sale, any unrealized gains or losses on the securities are recognized through other comprehensive income, net of deferred income taxes.

Marketable security	Fair value measurement level	Market value		Cost basis		Unrealized loss
December 31, 2014
Valhi common stock	1	$	11.0	$	15.3	$	(4.3	)
NL and CompX common stocks	1		.1		.1		-
Total		$	11.1	$	15.4	$	(4.3	)

December 31, 2015
Valhi common stock	1	$	2.3	$	3.2	$	(.9	)
NL and CompX common stocks	1		.1		.1		-
Total		$	2.4	$	3.3	$	(.9	)

At December 31, 2014 and 2015, we held approximately 1.7 million shares of Valhi’s common stock. We also held a nominal number of shares of CompX and NL common stocks. At December 31, 2014 and 2015, the quoted per share market price of Valhi’s common stock was $6.41 and $1.34, respectively.

With respect to our investment in Valhi stock, as of September 30, 2015 our cost basis had exceeded its market value since March 2014. At September 30, 2015, we determined that the decline in fair value was other than temporary and recognized an aggregate $12.0 million pre-tax impairment charge to write down the cost basis of our investment in the 1.7 million shares of Valhi’s common stock to its aggregate market value at that date. In determining such decline in value was other than temporary at September 30, 2015, we considered all available evidence in reaching this conclusion, including the length of time the cost basis had exceeded its market value (18 months) and the steep decline in the quoted market price of Valhi common from June 30, 2015 to September 30, 2015. Such impairment charge, accounted for as a realized loss, is classified as a securities transaction loss, and was reclassified out of accumulated other comprehensive income along with the related deferred income tax of $4.2 million. We will continue to monitor the quoted market price for this investment. In this regard, as of February 29, 2016, the aggregate quoted market price for our shares of Valhi common stock was $1.0 million less than our aggregate cost basis. If we conclude in the future that a decline in value of one or more of these securities was other than temporary, we would recognize impairment through an income statement charge at that time. Such income statement impairment charge would be offset in other comprehensive income by the reversal of the previously recognized unrealized losses to the extent they were previously recognized in accumulated other comprehensive income.

The Valhi, CompX and NL common stocks we own are subject to the restrictions on resale pursuant to certain provisions of the Securities and Exchange Commission (SEC) Rule 144. In addition, as a majority-owned subsidiary of Valhi we cannot vote our shares of Valhi common stock under Delaware General Corporation Law, but we do receive dividends from Valhi on these shares, when declared and paid.

- Definition

The entire disclosure for investments in certain debt and equity securities.

+ References + Details

Other Noncurrent Assets

12 Months Ended

Dec. 31, 2015

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Other Noncurrent Assets

Note 7 – Other noncurrent assets:

	December 31,
	2014		2015
	(In millions)
Deferred financing costs, net	$	1.8	$	1.0
Pension asset		-		.4
Other		4.3		1.7
Total	$	6.1	$	3.1

See Notes 9 and 18 for disclosure regarding deferred financing costs related to our term loan, which are now shown as a direct deduction from the carrying value of such debt liability at December 31, 2014 and 2015.

Accounts Payable and Accrued Liabilities

12 Months Ended

Dec. 31, 2015

Payables And Accruals [Abstract]

Accounts Payable and Accrued Liabilities

Note 8 - Accounts payable and accrued liabilities:

	December 31,
	2014		2015
	(In millions)
Accounts payable	$	121.4	$	96.1
Accrued sales discounts and rebates		14.8		18.9
Employee benefits		24.6		14.2
Accrued workforce reduction costs		-		5.3
Interest rate swap contract		-		3.3
Accrued interest		.5		.2
Other		41.3		34.7
Total	$	202.6	$	172.7

See Note 16 for a discussion of the interest rate swap contract, and Note 17 for a discussion on accrued workforce reduction costs.

Long-Term debt

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Long-Term Debt

Note 9 - Long-term debt:

	December 31,
	2014		2015
	(In millions)
Term loan	$	340.9	$	338.0
Other		2.7		3.0
Total debt		343.6		341.0
Less current maturities		3.9		3.8
Total long-term debt	$	339.7	$	337.2

Term loans - In 2013, we voluntarily repaid our entire $400 million term loan that was issued in June 2012. We prepaid an aggregate $390 million principal amount and recognized a non-cash pre-tax interest charge of $8.9 million in 2013 related to this prepayment consisting of the write-off of the unamortized original issue discount costs and deferred financing costs associated with such prepayment. Funds for the aggregate prepayments were provided by $150 million of our cash on hand, borrowings of $190 million under a 2013 loan agreement from Contran as described below and borrowings of $50 million under our revolving North American credit facility.

In February 2014, we entered into a new $350 million term loan. The term loan was issued at 99.5% of the principal amount, or an aggregate of $348.3 million. We used $170 million of the net proceeds of the new term loan to prepay the outstanding principal balance of our note payable to Contran (along with accrued and unpaid interest through the prepayment date), and such note payable was cancelled. The remaining net proceeds of the term loan were available for our general corporate purposes. The new term loan:

bears interest, at our option, at LIBOR (with LIBOR no less than 1.0%) plus 3.75%, or the base rate, as defined in the agreement, plus 2.75%;

requires quarterly principal repayments of $875,000 which commenced in June 2014, other mandatory principal repayments of formula-determined amounts under specified conditions with all remaining principal balance due in February 2020. Voluntary principal prepayments are permitted at any time;

is collateralized by, among other things, a first priority lien on (i) 100% of the common stock of certain of our U.S. wholly-owned subsidiaries, (ii) 65% of the common stock or other ownership interest of our Canadian subsidiary (Kronos Canada, Inc.) and certain first-tier European subsidiaries (Kronos Titan GmbH and Kronos Denmark ApS) and (iii) a $395.7 million unsecured promissory note issued by our wholly-owned subsidiary, Kronos International, Inc. (KII) to us;

is also collateralized by a second priority lien on all of the U.S. assets which collateralize our North American revolving facility, as discussed below;

contains a number of covenants and restrictions which, among other things, restrict our ability to incur additional debt, incur liens, pay dividends or merge or consolidate with, or sell or transfer substantially all of our assets to, another entity, contains other provisions and restrictive covenants customary in lending transactions of this type (however, there are no ongoing financial maintenance covenants); and

contains customary default provisions, including a default under any of our other indebtedness in excess of $50 million.

In May 2015 we entered into an amendment to our term loan due in February 2020. As a result of the amendment:

The applicable margin on outstanding LIBOR-based borrowings was reduced from 3.75% to 3.00%, and the applicable margin on outstanding base rate borrowings was reduced from 2.75% to 2.00%; and

A provision was added whereby if we elected to call all or a portion of the outstanding principal balance within six months of completing the amendment (i.e. before November 2015), a 1% call premium of the aggregate principal amount so prepaid would apply. There is no prepayment penalty applicable to any call after November 2015. We made no such call prior to November 2015.

We accounted for such amendment to our term loan as a modification of the terms of the term loan. All other terms of the term loan, including principal repayments, maturity and collateral remain unchanged. We paid a $750,000 refinancing fee in connection with this amendment, which along with the existing unamortized deferred financing costs associated with the term loan are being amortized over the remaining term of the loan.

The average interest rate on the term loan borrowings as of and for the year ended December 31, 2015 was 4.0% and 4.29%, respectively. The carrying value of the term loan at December 31, 2015 is stated net of unamortized original issue discount of $1.2 million and debt issuance costs of $4.7 million (December 31, 2014 - $1.5 million and $5.0 million). See Note 18.

See Note 16 for a discussion of the interest rate swap we entered into in the third quarter of 2015 pursuant to our interest rate risk management strategy.

Note payable to Contran - As discussed above, in February 2013 we entered into a promissory note with Contran. This loan from Contran contained terms and conditions similar to the terms and conditions of our prior $400 million term loan, except that the loan from Contran was unsecured and contained no ongoing financial maintenance covenant. The independent members of our board of directors approved the terms and conditions of the loan from Contran. In 2013, we borrowed $190 million and subsequently repaid $20 million. As discussed above, in February 2014 we used $170 million of the proceeds from our new term loan and prepaid the remaining balance owed to Contran under this note payable (without penalty), and the note payable to Contran was cancelled.

Revolving credit facilities

Revolving North American credit facility - In June 2012, we entered into a $125 million revolving bank credit facility which matures in June 2017. Borrowings under the revolving credit facility are available for our general corporate purposes. Available borrowings on this facility are based on formula-determined amounts of eligible trade receivables and inventories, as defined in the agreement, of certain of our North American subsidiaries less any outstanding letters of credit up to $15 million issued under the facility (with revolving borrowings by our Canadian subsidiary limited to $25 million). Any amounts outstanding under the revolving credit facility bear interest, at our option, at LIBOR plus a margin ranging from 1.5% to 2.0% or at the applicable base rate, as defined in the agreement, plus a margin ranging from .5% to 1.0%. The credit facility is collateralized by, among other things, a first priority lien on the borrowers’ trade receivables and inventories. The facility contains a number of covenants and restrictions which, among other things, restricts the borrowers’ ability to incur additional debt, incur liens, pay dividends or merge or consolidate with, or sell or transfer all or substantially all of their assets to, another entity, contains other provisions and restrictive covenants customary in lending transactions of this type and under certain conditions requires the maintenance of a specified financial covenant (fixed charge coverage ratio, as defined) to be at least 1.1 to 1.0. During 2014, we borrowed $81.0 million and repaid $92.1 million under this facility. We had no borrowings or repayments under this facility during 2015, and at December 31, 2015 we had approximately $68.3 million available for borrowing under this revolving facility.

Revolving European credit facility - Our operating subsidiaries in Germany, Belgium, Norway and Denmark have a €120 million secured revolving bank credit facility that matures in September 2017. We may denominate borrowings in Euros, Norwegian kroner or U.S. dollars. Outstanding borrowings bear interest at LIBOR plus 1.90%. The facility is collateralized by the accounts receivable and inventories of the borrowers, plus a limited pledge of all of the other assets of the Belgian borrower. The facility contains certain restrictive covenants that, among other things, restrict the ability of the borrowers to incur debt, incur liens, pay dividends or merge or consolidate with, or sell or transfer all or substantially all of the assets to, another entity, and requires the maintenance of certain financial ratios. In addition, the credit facility contains customary cross-default provisions with respect to other debt and obligations of the borrowers, KII and its other subsidiaries.

We had no borrowings or repayments under this facility during 2015 and at December 31, 2015, there were no outstanding borrowings under this facility. Our European revolving credit facility requires the maintenance of certain financial ratios, and one of such requirements is based on the ratio of net debt to last twelve months earnings before income tax, interest, depreciation and amortization expense (EBITDA) of the borrowers. Based upon the borrowers’ last twelve months EBITDA as of December 31, 2015 and the net debt to EBITDA financial test, our borrowing availability at December 31, 2015 is approximately 19% of the credit facility, or €23.1 million ($25.3 million).

Canada - In December 2011, our Canadian subsidiary entered into an agreement with an economic development agency of the Province of Quebec, Canada pursuant to which we have borrowed an aggregate of Cdn. $4.5 million through December 31, 2015 (no additional amounts are expected to be borrowed under this facility). Borrowings may only be used to fund capital improvements at our Canadian plant and are limited to a specified percentage of such capital improvements. Borrowings are non-interest bearing, with equal monthly payments commencing in 2018. The agreement contains certain restrictive covenants, which, among other things, restricts the subsidiary’s ability to sell assets or enter into mergers, and requires our subsidiary to maintain certain financial ratios and maintain specified levels of employment. At December 31, 2015, we had Cdn. $4.5 million (USD $3.3 million), outstanding under this agreement.

Prior to December 31, 2014, we had an aggregate of Cdn. $7.9 million of letters of credit outstanding issued by a bank on behalf of our Canadian subsidiary. These letters of credit were issued in connection with the appeal of a Canadian income tax assessment discussed in Note 10. Upon the successful completion of the appeal in 2014, such letters of credit were cancelled, and an equivalent amount of restricted cash deposits which had been collateralizing such letters of credit, classified as noncurrent restricted cash, were released.

Aggregate maturities and other - Aggregate maturities of debt at December 31, 2015 are presented in the table below.

Year ending December 31,	Amount
	(In millions)
2016	$	3.8
2017		3.5
2018		4.1
2019		4.2
2020		330.5
2021 and thereafter		.8
Gross maturities		346.9
Less original issue discount and debt issuance costs		5.9
Total	$	341.0

We are in compliance with all of our debt covenants at December 31, 2015.

Income Taxes

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Income Taxes

Note 10 - Income taxes:

	Years ended December 31,
	2013			2014			2015
	(In millions)
Pre-tax income (loss):
U.S.	$	(15.1	)	$	59.2		$	5.5
Non-U.S.		(144.8	)		74.5			(36.3	)
Total	$	(159.9	)	$	133.7		$	(30.8	)

Expected tax expense (benefit), at U.S. federal statutory income tax rate of 35%	$	(56.0	)	$	46.8		$	(10.8	)
Non-U.S. tax rates		4.2			(4.2	)		.5
Incremental net tax (benefit) on earnings and losses of non-U.S. companies		(7.4	)		(3.7	)		(8.7	)
Valuation allowance		-			-			159.0
Adjustment to the reserve for uncertain tax positions, net		(.4	)		(5.1	)		.7
Nondeductible expenses		2.1			1.9			2.1
U.S. state income taxes and other, net		(.4	)		(1.2	)		-
Provision for income taxes (benefit)	$	(57.9	)	$	34.5		$	142.8

Components of income tax expense:
Currently payable (refundable):
U.S. federal and state	$	7.3		$	1.9		$	.3
Non-U.S.		(1.2	)		15.2			3.3
		6.1			17.1			3.6

Deferred income taxes (benefit):
U.S. federal and state		(22.0	)		10.0			(6.4	)
Non-U.S.		(42.0	)		7.4			145.6
		(64.0	)		17.4			139.2
Provision for income taxes (benefit)	$	(57.9	)	$	34.5		$	142.8

Comprehensive provision for income taxes (benefit) allocable to:
Net income (loss)	$	(57.9	)	$	34.5		$	142.8
Other comprehensive income (loss):
Currency translation		5.5			(16.9	)		-
Marketable securities		3.1			(6.7	)		1.1
Pension plans		11.8			(30.1	)		1.5
OPEB plans		1.4			(.4	)		(.1	)
Interest rate swap		-			-			(1.3	)
Total	$	(36.1	)	$	(19.6	)	$	144.0

The amount shown in the above table of our income tax rate reconciliation for non-U.S. tax rates represents the result determined by multiplying the pre-tax earnings or losses of each of our non-U.S. subsidiaries by the difference between the applicable statutory income tax rate for each non-U.S. jurisdiction and the U.S. federal statutory tax rate of 35%. The amount shown on such table for incremental net tax (benefit) on earnings and losses on non-U.S. companies includes, as applicable, (i) current income taxes (including withholding taxes, if applicable), if any, associated with any current-year earnings of our non-U.S. subsidiaries to the extent such current-year earnings were distributed to us in the current year, (ii) deferred income taxes (or deferred income tax benefit) associated with the current-year change in the aggregate amount of undistributed earnings of our Canadian subsidiary, which earnings are not subject to a permanent reinvestment plan, in an amount representing the current-year change in the aggregate current income tax that would be generated (including withholding taxes, if applicable) when such aggregate undistributed earnings are distributed to us, and (iii) current U.S. income taxes (or current income tax benefit), including U.S. personal holding company tax, as applicable, attributable to current-year income (losses) of one of our non-U.S. subsidiaries, which subsidiary is treated as a dual resident for U.S. income tax purposes, to the extent the current-year income (losses) of such subsidiary is subject to U.S. income tax under the U.S. dual-resident provisions of the Internal Revenue Code.

The components of our net deferred income taxes at December 31, 2014 and 2015 are summarized in the following table.

	December 31,
	2014						2015
	Assets			Liabilities			Assets			Liabilities
	(In millions)
Tax effect of temporary differences related to:
Inventories	$	4.6		$	(4.9	)	$	3.2		$	(3.5	)
Property and equipment		-			(67.5	)		-			(59.3	)
Accrued OPEB costs		2.4			-			2.0			-
Accrued pension cost		47.6			-			39.4			-
Currency revaluation on intercompany debt		5.6			-			18.6			-
Other accrued liabilities and deductible differences		13.7			-			19.4			-
Other taxable differences		-			(.9	)		-			(.5	)
Tax on unremitted earnings of non-U.S. subsidiaries		-			(2.6	)		-			(1.9	)
Tax loss and tax credit carryforwards		163.3			-			157.4			-
Valuation allowance		(.1	)		-			(168.9	)		-
Adjusted gross deferred tax assets (liabilities)		237.1			(75.9	)		71.1			(65.2	)
Netting by tax jurisdiction		(69.8	)		69.8			(57.1	)		57.1
Net noncurrent deferred tax asset (liability)	$	167.3		$	(6.1	)	$	14.0		$	(8.1	)

We have substantial net operating loss (NOL) carryforwards in Germany (the equivalent of $683 million and $96 million for German corporate and trade tax purposes, respectively, at December 31, 2015) and in Belgium (the equivalent of $86 million for Belgian corporate tax purposes at December 31, 2015), all of which have an indefinite carryforward period. As a result, we have net deferred income tax assets recognized with respect to these two jurisdictions, primarily related to these NOL carryforwards. The German corporate tax is similar to the U.S. federal income tax, and the German trade tax is similar to the U.S. state income tax. Prior to June 30, 2015, and using all available evidence, we had concluded no deferred income tax asset valuation allowance was required to be recognized with respect to these net deferred income tax assets under the more-likely-than-not recognition criteria, primarily because (i) the carryforwards have an indefinite carryforward period, (ii) we utilized a portion of such carryforwards during the most recent three-year period, and (iii) we expect to utilize the remainder of the carryforwards over the long term. We had also previously indicated that facts and circumstances could change, which might in the future result in the recognition of a valuation allowance against some or all of such deferred income tax assets. However, as of June 30, 2015, and given our operating results during the second quarter of 2015 and our expectations at that time for our operating results for the remainder of 2015, we did not have sufficient positive evidence to overcome the significant negative evidence of having cumulative losses in the most recent twelve consecutive quarters in both our German and Belgian jurisdictions at June 30, 2015 (even considering that the carryforward period of our German and Belgian NOL carryforwards is indefinite, one piece of positive evidence). Accordingly, at June 30, 2015, we concluded that we were required to recognize a non-cash deferred income tax asset valuation allowance under the more-likely-than-not recognition criteria with respect to our German and Belgian net deferred income tax assets. Such valuation allowance aggregated $150.3 million at June 30, 2015. We recognized an additional $8.7 million non-cash deferred income tax asset valuation allowance under the more-likely-than-not recognition criteria during the third and fourth quarters of 2015, due to losses recognized by our German and Belgian operations during such period. In addition to the aggregate $159.0 million increase in the deferred income tax asset valuation allowance recognized as part of the provision for income taxes in 2015, the deferred income tax asset valuation allowance also increased by an aggregate of $9.8 million in 2015 due to amounts recognized in other comprehensive income.

Tax authorities are examining certain of our U.S. and non-U.S. tax returns and have or may propose tax deficiencies, including penalties and interest. Because of the inherent uncertainties involved in settlement initiatives and court and tax proceedings, we cannot guarantee that these tax matters will be resolved in our favor, and therefore our potential exposure, if any, is also uncertain. In 2011 and 2012 we received notices of re-assessment from the Canadian federal and provincial tax authorities related to the years 2002 through 2004. We objected to the re-assessments and believed the position was without merit. Accordingly, we appealed the re-assessments and in connection with such appeal we were required to post letters of credit aggregating Cdn. $7.9 million (see Note 9). In 2014, the Appeals Division of the Canadian Revenue Authority ruled in our favor and reversed in their entirety such notices of re-assessment. As a result, we recognized a non-cash income tax benefit of $3.0 million related to the release of a portion of our reserve for uncertain tax positions in 2014 related to the completion of this Canadian income tax audit. In addition, the related letters of credit have been cancelled. Also during 2014, we recognized a non-cash income tax benefit of $3.1 million related to the release of a portion of our reserve for uncertain tax positions in conjunction with the completion of an audit of our U.S. income tax return for 2009. We believe we have adequate accruals for additional taxes and related interest expense which could ultimately result from tax examinations. We believe the ultimate disposition of tax examinations should not have a material adverse effect on our consolidated financial position, results of operations or liquidity.

We accrue interest and penalties on our uncertain tax positions as a component of our provision for income taxes. The amount of interest and penalties we accrued during 2013, 2014 and 2015 was not material, and at December 31, 2013, 2014 and 2015, we had $3.7 million, $2.8 million and $2.3 million, respectively, accrued for interest and penalties for our uncertain tax positions.

The following table shows the changes in the amount of our uncertain tax positions (exclusive of the effect of interest and penalties discussed above) during 2013, 2014 and 2015:

	Years ended December 31,
	2013			2014			2015
	(In millions)
Changes in unrecognized tax benefits:
Unrecognized tax benefits at beginning of year	$	13.0		$	15.9		$	10.4
Net increase (decrease):
Tax positions taken in prior periods		(.3	)		(5.4	)		(.3	)
Tax positions taken in current period		3.9			1.1			1.1
Lapse due to applicable statute of limitations		-			-			(.2	)
Change in currency exchange rates		(.7	)		(1.2	)		(1.3	)
Unrecognized tax benefits at end of year	$	15.9		$	10.4		$	9.7

If our uncertain tax positions were recognized, a benefit of $15.1 million, $8.8 million and $7.8 million would affect our effective income tax rates for 2013, 2014 and 2015 respectively. At December 31, 2015, we currently estimate that our unrecognized tax benefits will not change materially during the next twelve months related to our prior year returns.

We file income tax returns in various U.S. federal, state and local jurisdictions. We also file income tax returns in various non-U.S. jurisdictions, principally in Germany, Canada, Belgium and Norway. Our U.S. income tax returns prior to 2012 are generally considered closed to examination by applicable tax authorities. Our non-U.S. income tax returns are generally considered closed to examination for years prior to 2011 for Germany, 2012 for Belgium, 2010 for Canada and 2006 for Norway.

Employee Benefit Plans

12 Months Ended

Dec. 31, 2015

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Plans

Note 11 - Employee benefit plans:

Defined contribution plans - We maintain various defined contribution pension plans with our contributions based on matching or other formulas. Defined contribution plan expense approximated $1.8 million in 2013, $2.6 million in 2014 and $2.7 million in 2015.

Accounting for defined benefit and postretirement benefits other than pensions (OPEB) plans - We recognize an asset or liability for the over or under funded status of each of our individual defined benefit pension plans on our Consolidated Balance Sheets. Changes in the funded status of these plans are recognized either in net income (loss), to the extent they are reflected in periodic benefit cost, or through other comprehensive income (loss).

Defined benefit plans - We sponsor various defined benefit pension plans. Certain non-U.S. employees are covered by plans in their respective countries. Our U.S. plan was closed to new participants in 1996, and existing participants no longer accrued any additional benefits after that date. The benefits under our plans are based upon years of service and employee compensation. Our funding policy is to contribute annually the minimum amount required under ERISA (or equivalent non-U.S.) regulations plus additional amounts as we deem appropriate.

We expect to contribute the equivalent of approximately $15.2 million to all of our defined benefit pension plans during 2016. Benefit payments to plan participants out of plan assets are expected to be the equivalent of:

Years ending December 31,	Amount
	(In millions)
2016	$	19.8
2017		20.0
2018		20.4
2019		20.9
2020		21.7
Next 5 years		122.0

The funded status of our non-U.S. defined benefit pension plans is presented in the table below.

	December 31,
	2014			2015
	(In millions)
Change in projected benefit obligations (PBO):
Benefit obligations at beginning of the year	$	595.1		$	648.4
Service cost		9.9			11.2
Interest cost		21.7			14.6
Participant contributions		1.9			1.6
Actuarial losses (gains)		120.5			(8.7	)
Change in currency exchange rates		(74.4	)		(76.4	)
Benefits paid		(26.3	)		(21.0	)
Benefit obligations at end of the year		648.4			569.7

Change in plan assets:
Fair value of plan assets at beginning of the year		431.4			414.8
Actual return on plan assets		39.7			10.6
Employer contributions		19.8			17.1
Participant contributions		1.9			1.6
Change in currency exchange rates		(51.7	)		(51.1	)
Benefits paid		(26.3	)		(21.0	)
Fair value of plan assets at end of year		414.8			372.0
Funded status	$	(233.6	)	$	(197.7	)

Amounts recognized in the balance sheet:
Noncurrent pension asset	$	-		$	.4
Accrued pension costs:
Current		(.7	)		-
Noncurrent		(232.9	)		(198.1	)
Total	$	(233.6	)	$	(197.7	)

Accumulated other comprehensive loss:
Actuarial losses	$	248.3		$	230.6
Prior service cost		2.2			1.9
Total	$	250.5		$	232.5

Accumulated benefit obligations (ABO)	$	616.6		$	545.2

The components of our net periodic defined benefit pension cost for our non-U.S. defined benefit pension plans are presented in the table below. In December 2013, we amended one of our Canadian plans in which participation with respect to hourly workers was closed to new participants in December 2013, and existing hourly plan participants will no longer accrue additional benefits after December 2013, resulting in a $7.1 million curtailment charge for recognition of previously unamortized prior service cost and transition obligation and $.2 million for special termination benefits. In 2014, we amended the other Canadian plan in which participation with respect to salaried workers was closed to new participants in December 2014, and existing hourly plan participants will no longer accrue additional benefits after December 2014, resulting in a nominal curtailment charge. The amounts shown below for the amortization of prior service cost, net transition obligations and recognized actuarial losses for 2013, 2014 and 2015 were recognized as components of our accumulated other comprehensive income (loss) at December 31, 2012, 2013 and 2014, respectively, net of deferred income taxes.

	Years ended December 31,
	2013			2014			2015
	(In millions)
Net periodic pension cost:
Service cost benefits	$	13.1		$	9.9		$	11.2
Interest cost on PBO		21.1			21.7			14.6
Expected return on plan assets		(18.5	)		(20.0	)		(16.6	)
Settlement gain		-			(.3	)		-
Curtailment loss		7.3			-			-
Recognized actuarial losses		12.5			10.0			13.6
Amortization of prior service cost		1.1			.5			.4
Amortization of net transition obligations		.4			.1			-
Total	$	37.0		$	21.9		$	23.2

Certain information concerning our non-U.S. defined benefit pension plans is presented in the table below.

	December 31,
	2014		2015
	(In millions)
Plans for which the ABO exceeds plan assets:
PBO	$	621.7	$	518.1
ABO		592.5		498.7
Fair value of plan assets		390.6		321.6

The weighted-average rate assumptions used in determining the actuarial present value of benefit obligations for our non-U.S. defined benefit pension plans as of December 31, 2014 and 2015 are presented in the table below.

Rate	December 31,
	2014			2015
Discount rate		2.5	%		2.6	%
Increase in future compensation levels		2.6	%		2.9	%

The weighted-average rate assumptions used in determining the net periodic pension cost for our non-U.S. defined benefit pension plans for 2013, 2014 and 2015 are presented in the table below.

Rate	Years ended December 31,
	2013			2014			2015
Discount rate		3.7	%		3.8	%		2.5	%
Increase in future compensation levels		3.1	%		2.7	%		2.6	%
Long-term return on plan assets		5.0	%		5.0	%		4.6	%

Variances from actuarially assumed rates will result in increases or decreases in accumulated pension obligations, pension expense and funding requirements in future periods.

The funded status of our U.S. defined benefit pension plan is presented in the table below.

	December 31,
	2014			2015
	(In millions)
Change in PBO:
Benefit obligations at beginning of the year	$	17.2		$	19.8
Interest cost		.8			.8
Actuarial losses (gains)		2.9			(1.0	)
Benefits paid		(1.1	)		(1.0	)
Benefit obligations at end of the year		19.8			18.6

Change in plan assets:
Fair value of plan assets at beginning of the year		15.8			15.5
Actual return (loss) on plan assets		.5			(.7	)
Employer contributions		.3			.1
Benefits paid		(1.1	)		(1.0	)
Fair value of plan assets at end of year		15.5			13.9
Funded status	$	(4.3	)	$	(4.7	)

Amounts recognized in the balance sheet:
Accrued pension costs:
Current	$	(.1	)	$	(.1	)
Noncurrent		(4.2	)		(4.6	)
Total	$	(4.3	)	$	(4.7	)

Accumulated other comprehensive loss - actuarial losses	$	11.2		$	11.6

ABO	$	19.8		$	18.6

The components of our net periodic defined benefit pension cost for our U.S. defined benefit pension plan is presented in the table below. The amounts shown below for recognized actuarial losses for 2013, 2014 and 2015 were recognized as components of our accumulated other comprehensive income (loss) at December 31, 2012, 2013 and 2014 respectively, net of deferred income taxes.

	Years ended December 31,
	2013			2014			2015
	(In millions)
Net periodic pension cost (income):
Interest cost on PBO	$	.7		$	.8		$	.8
Expected return on plan assets		(1.4	)		(1.2	)		(1.1	)
Recognized actuarial losses		.5			.3			.5
Total	$	(.2	)	$	(.1	)	$	.2

The discount rate assumptions used in determining the actuarial present value of the benefit obligation for our U.S. defined benefit pension plan as of December 31, 2014 and 2015 are 3.8% and 4.1%, respectively. The impact of assumed increases in future compensation levels does not have an effect on the benefit obligation as the plan is frozen with regards to compensation.

The weighted-average rate assumptions used in determining the net periodic pension cost for our U.S. defined benefit pension plan for 2013, 2014 and 2015 are presented in the table below. The impact of assumed increases in future compensation levels also does not have an effect on the periodic pension cost as the plan is frozen with regards to compensation.

Rate	Years ended December 31,
	2013			2014			2015
Discount rate		3.6	%		4.5	%		3.8	%
Long-term return on plan assets		10.0	%		7.5	%		7.5	%

Variances from actuarially assumed rates will result in increases or decreases in accumulated pension obligations, pension expense and funding requirements in future periods.

The amounts shown in the above tables for actuarial losses and prior service cost at December 31, 2014 and 2015 have not yet been recognized as components of our periodic defined benefit pension cost as of those dates. These amounts will be recognized as components of our periodic defined benefit cost in future years and are recognized, net of deferred income taxes, in our accumulated other comprehensive income (loss) at December 2014 and 2015. We expect approximately $11.4 million and $.2 million of the unrecognized actuarial losses and prior service costs, respectively, will be recognized as components of our consolidated net periodic defined benefit pension cost in 2016.

The table below details the changes in our consolidated other comprehensive income (loss) during 2013, 2014 and 2015.

	Years ended December 31,
	2013		2014			2015
	(In millions)
Changes in plan assets and benefit obligations recognized in other comprehensive income (loss):
Current year:
Net actuarial gain (loss)	$	14.7	$	(103.9	)	$	2.7
Plan curtailment		7.1		-			-
Settlements		-		(.3	)		-
Amortization of unrecognized:
Net actuarial losses		13.0		10.3			14.1
Prior service cost		1.1		.5			.4
Net transition obligations		.4		.1			-
Total	$	36.3	$	(93.3	)	$	17.2

At December 31, 2014 and 2015, substantially all of the assets attributable to our U.S. plan were invested in the Combined Master Retirement Trust (CMRT), a collective investment trust sponsored by Contran to permit the collective investment by certain master trusts that fund certain employee benefits plans sponsored by Contran and certain of its affiliates. As previously disclosed, prior to his death in December 2013, Mr. Harold Simmons was the sole trustee of the CMRT, and he along with the CMRT’s investment committee, of which Mr. Simmons was a member, actively managed the investments of the CMRT. The CMRT’s long-term investment objective was to provide a rate of return exceeding a composite of broad market equity and fixed income indices (including the S&P 500 and certain Russell indices) while utilizing both third-party investment managers as well as investments directed by Mr. Simmons (prior to his death). During the history of the CMRT from its inception in 1988 through December 31, 2013, the average annual rate of return was 14%. For the year ended December 31, 2013, the assumed long-term rate of return for plan assets invested in the CMRT was 10%. In determining the appropriateness of the long-term rate of return assumption, we primarily relied on the historical rates of return achieved by the CMRT, although we considered other factors as well including, among other things, the investment objectives of the CMRT’s managers and their expectation that such historical returns would in the future continue to be achieved over the long-term.

Following the death of Mr. Simmons in December 2013, the Contran board of directors in January 2014 appointed a financial institution as the new directed trustee of the CMRT, and the Contran board appointed five individuals (all executive officers of Contran) as the new investment committee of the CMRT. During 2014, the new investment committee began a process of reallocating to current and/or new investment managers or various mutual funds and comingled funds the portion of the CMRT assets that had previously been under direct and active management by Mr. Simmons. The reallocation process would be done prudently over a period of time, given the diverse asset composition of this portion of the portfolio, and was substantially complete at December 31, 2015. Concurrent with this change in investment strategy in which there is no longer a portion of the CMRT’s assets under direct and active management by Mr. Simmons, and considering the long-term asset mix of the assets of the CMRT and the expected long-term rates of return for such asset components as well as advice from Contran’s actuaries, beginning in 2014 the assumed long-term rate of return for plan assets invested in the CMRT was reduced to 7.5%.

The CMRT unit value is determined semi-monthly, and the plans have the ability to redeem all or any portion of their investment in the CMRT at any time based on the most recent semi-monthly valuation. However, the plans do not have the right to individual assets held by the CMRT and the CMRT has the sole discretion in determining how to meet any redemption request. For purposes of our plan asset disclosure, we consider the investment in the CMRT as a Level 2 input because (i) the CMRT value is established semi-monthly and the plans have the right to redeem their investment in the CMRT, in part or in whole, at any time based on the most recent value and (ii) observable inputs from Level 1 or Level 2 were used to value approximately 80% and 81% of the assets of the CMRT at December 31, 2014 and 2015, respectively, as noted below. The aggregate fair value of all of the CMRT assets, including funds of Contran and its other affiliates that also invest in the CMRT, and supplemental asset mix details of the CMRT are as follows:

	December 31,
	2014				2015
	(In millions)
CMRT asset value	$	715.5		$	648.8
CMRT fair value input:
Level 1		67	%		54	%
Level 2		13			27
Level 3		20			19
		100	%		100	%
CMRT asset mix:
Domestic equities, principally publicly traded		48	%		29	%
International equities, principally publicly traded		11			22
Fixed income securities, principally publicly traded		32			38
Privately managed limited partnerships		7			5
Hedge funds		-			5
Other, primarily cash		2			1
		100	%		100	%

In determining the expected long-term rate of return on non-U.S. plan asset assumptions, we consider the long-term asset mix (e.g. equity vs. fixed income) for the assets for each of our plans and the expected long-term rates of return for such asset components. In addition, we receive third-party advice about appropriate long-term rates of return. Such assumed asset mixes are summarized below:

In Germany, the composition of our plan assets is established to satisfy the requirements of the German insurance commissioner. Our German pension plan assets represent an investment in a large collective investment fund established and maintained by Bayer AG in which several pension plans, including our German pension plan and Bayer’s pension plans, have invested. Our plan assets represent a very nominal portion of the total collective investment fund maintained by Bayer. These plan assets are a Level 3 input because there is not an active market that approximates the value of our investment in the Bayer investment fund. We determine the fair value of the Bayer plan assets based on periodic reports we receive from the managers of the Bayer plan. These periodic reports are subject to audit by the German pension regulator.

In Canada, we currently have a plan asset target allocation of 38% to equity securities, 55% to fixed income securities, 7% to other investments and cash. We expect the long-term rate of return for such investments to average approximately 125 basis points above the applicable equity or fixed income index. The Canadian assets are Level 1 inputs because they are traded in active markets.

In Norway, we currently have a plan asset target allocation of 11% to equity securities, 79% to fixed income securities, 7% to real estate and the remainder primarily to other investments and liquid investments such as money markets. The expected long-term rate of return for such investments is approximately 7%, 3%, 5% and 5%, respectively. The majority of Norwegian plan assets are Level 1 inputs because they are traded in active markets; however approximately 11% of our Norwegian plan assets are invested in real estate and other investments not actively traded and are therefore a Level 3 input.

We also have plan assets in Belgium and the United Kingdom. The Belgian plan assets are invested in certain individualized fixed income insurance contracts for the benefit of each plan participant as required by the local regulators and are therefore a Level 3 input. The United Kingdom plan assets consist of marketable securities which are Level 1 inputs because they trade in active markets.

We regularly review our actual asset allocation for each plan, and will periodically rebalance the investments in each plan to more accurately reflect the targeted allocation and/or maximize the overall long-term return when considered appropriate.

The composition of our December 31, 2014 and 2015 pension plan assets by asset category and fair value level is shown in the table below. The amounts shown for plan assets invested in the CMRT include a nominal amount of cash held by our U.S. pension plan which is not part of the plan’s investment in the CMRT.

	Fair Value Measurements at December 31, 2014
	Total		Quoted prices in active markets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
	(In millions)
Germany	$	240.7	$	-	$	-	$	240.7
Canada:
Local currency equities		12.4		12.4		-		-
Non local currency equities		34.4		34.4		-		-
Local currency fixed income		50.3		50.3		-		-
Global mutual fund		10.1		10.1		-		-
Cash and other		.6		.6		-		-
Norway:
Local currency equities		1.9		1.9		-		-
Non local currency equities		5.1		5.1		-		-
Local currency fixed income		29.3		29.3		-		-
Non local currency fixed income		3.8		3.8		-		-
Real estate		4.5		-		-		4.5
Cash and other		10.3		9.2		-		1.1
U.S.
CMRT		15.5		-		15.5		-
Other		11.4		3.6		-		7.8
Total	$	430.3	$	160.7	$	15.5	$	254.1

	Fair Value Measurements at December 31, 2015
	Total		Quoted prices in active markets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
	(In millions)
Germany	$	223.1	$	-	$	-	$	223.1
Canada:
Local currency equities		9.6		9.6		-		-
Non local currency equities		23.3		23.3		-		-
Local currency fixed income		50.6		50.6		-		-
Global mutual fund		6.8		6.8		-		-
Cash and other		.5		.5		-		-
Norway:
Local currency equities		2.0		2.0		-		-
Non local currency equities		3.6		3.6		-		-
Local currency fixed income		24.5		24.5		-		-
Non local currency fixed income		4.7		4.7		-		-
Real estate		4.2		-		-		4.2
Cash and other		7.9		6.7		-		1.2
U.S.
CMRT		13.9		-		13.9		-
Other		11.2		3.5		-		7.7
Total	$	385.9	$	135.8	$	13.9	$	236.2

A rollforward of the change in fair value of Level 3 assets follows.

	December 31,
	2014			2015
	(In millions)
Fair value at beginning of year	$	261.5		$	254.1
Gain on assets held at end of year		24.5			6.5
Gain on assets sold during the year		.3			.3
Assets purchased		16.9			13.7
Assets sold		(15.2	)		(12.4	)
Currency exchange rate fluctuations		(33.9	)		(26.0	)
Fair value at end of year	$	254.1		$	236.2

Postretirement benefits other than pensions (OPEB) - We provide certain health care and life insurance benefits for eligible retired employees. Certain of our Canadian employees may become eligible for such postretirement health care and life insurance benefits if they reach retirement age while working for us. In the U.S., employees who retired after 1998 are not entitled to any such benefits. The majority of all retirees are required to contribute a portion of the cost of their benefits and certain current and future retirees are eligible for reduced health care benefits at age 65. We have no OPEB plan assets, rather, we fund medical claims as they are paid. Contributions to our OPEB plans to cover benefit payments are expected to be the equivalent of:

Years ending December 31,	Amount
	(In millions)
2016	$	.4
2017		.4
2018		.4
2019		.4
2020		.4
Next 5 years		2.3

The funded status of our OPEB plans is presented in the table below:

	December 31,
	2014			2015
	(In millions)
Change in accumulated OPEB obligations:
Obligations at beginning of the year	$	8.2		$	8.5
Service cost		.1			.1
Interest cost		.4			.3
Actuarial losses (gains)		.8			(.2	)
Change in currency exchange rates		(.6	)		(1.3	)
Benefits paid from employer contributions		(.4	)		(.4	)
Obligations at end of the year		8.5			7.0
Fair value of plan assets		-			-
Funded status	$	(8.5	)	$	(7.0	)

Amounts recognized in the balance sheet:
Current accrued pension costs	$	(.4	)	$	(.3	)
Noncurrent accrued pension costs		(8.1	)		(6.7	)
Total	$	(8.5	)	$	(7.0	)

Accumulated other comprehensive income:
Net actuarial losses	$	3.6		$	3.1
Prior service credit		(7.0	)		(6.2	)
Total	$	(3.4	)	$	(3.1	)

The amounts shown in the table above for net actuarial losses and prior service credit at December 31, 2014 and 2015 have not yet been recognized as components of our periodic OPEB cost as of those dates. These amounts will be recognized as components of our periodic OPEB cost in future years and are recognized, net of deferred income taxes, in our accumulated other comprehensive income (loss). We expect to recognize approximately $.2 million of unrecognized actuarial losses and $.8 million of prior service credit as components of our periodic OPEB cost in 2016.

At December 31, 2015, the accumulated OPEB obligations for all OPEB plans comprised $.6 million related to U.S. plans and $6.4 million related to our Canadian plan (in 2014 the amounts were $.7 million and $7.8 million, respectively).

In 2013, we amended the benefit formula for most Canadian participants of our plans effective January 1, 2014, resulting in a curtailment gain as of December 31, 2013. Key assumptions including the service cost and benefit duration as of December 31, 2013 and 2014 now reflect these plan revisions to the benefit formula.

The components of our periodic OPEB costs are presented in the table below. The amounts shown below for amortization of prior service credit and recognized actuarial losses for 2013, 2014 and 2015 were recognized as components of our accumulated other comprehensive income (loss) at December 31, 2012, 2013 and 2014, respectively, net of deferred income taxes.

	Years ended December 31,
	2013			2014			2015
	(In millions)
Net periodic OPEB cost:
Service cost	$	.3		$	.1		$	.1
Interest cost		.6			.4			.3
Amortization of prior service credit		(.6	)		(.9	)		(.8	)
Recognized actuarial losses		.3			.2			.3
Curtailment gain		(.6	)		-			-
Total	$	-		$	(.2	)	$	(.1	)

The table below details the changes in benefit obligations recognized in accumulated other comprehensive income (loss) during 2013, 2014 and 2015.

	Years ended December 31,
	2013			2014			2015
	(In millions)
Changes in benefit obligations recognized in other comprehensive income (loss):
Current year:
Net actuarial gain/(loss)	$	1.6		$	(.8	)	$	.2
Plan amendments/curtailment		4.5			-			-
Amortization of unrecognized:
Net actuarial loss		.3			.2			.3
Prior service cost		(1.1	)		(.9	)		(.8	)
Total	$	5.3		$	(1.5	)	$	(.3	)

A summary of our key actuarial assumptions used to determine the net benefit obligation as of December 31, 2014 and 2015 are presented in the table below. The weighted average discount rate was determined using the projected benefit obligation as of such dates. The impact of assumed increases in future compensation levels does not have a material effect on the actuarial present value of the benefit obligation as substantially all of such benefits relate solely to eligible retirees, for which compensation is not applicable.

	2014			2015
Healthcare inflation:
Initial rate		7.0	%		7.0	%
Ultimate rate		5.0	%		5.0	%
Year of ultimate rate achievement		2021			2021
Weighted average discount rate		3.7	%		3.9	%

Assumed health care cost trend rates affect the amounts we report for health care plans. A one percent change in assumed health care trend rates would not have a material effect on the net periodic OPEB cost for 2015 or on the accumulated OPEB obligation at December 31, 2015.

The weighted average discount rate used in determining the net periodic OPEB cost for 2015 was 3.7% (2014 – 4.6%; 2013 – 3.9%). Such weighted average rate was determined using the projected benefit obligation as of the beginning of each year. The impact of assumed increases in future compensation levels does not have a material effect on the net periodic OPEB cost as substantially all of such benefits relate solely to eligible retirees, for which compensation is not applicable. The impact of the assumed rate of return on plan assets also does not have a material effect on the net periodic OPEB cost as there were no plan assets as of December 31, 2014 or 2015.

Variances from actuarially-assumed rates will result in additional increases or decreases in accumulated OPEB obligations, net periodic OPEB cost and funding requirements in future periods.

Other Noncurrent Liabilities

12 Months Ended

Dec. 31, 2015

Other Liabilities Disclosure [Abstract]

Other Noncurrent Liabilities

Note 12 - Other noncurrent liabilities:

	December 31,
	2014		2015
	(In millions)
Reserve for uncertain tax positions	$	13.1	$	11.8
Employee benefits		8.1		7.5
Interest rate swap contract		-		.2
Insurance claims and expenses		.3		.2
Other		5.3		4.7
Total	$	26.8	$	24.4

See Note 16 for a discussion on the interest rate swap contract.

Stockholders' Equity

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Stockholders' Equity

Note 13 - Stockholders’ equity:

Long-term incentive compensation plan – Prior to 2013, our board of directors adopted a new plan that would provide for the award of stock to our board of directors, and up to a maximum of 200,000 shares could be awarded. We awarded 7,000 shares in 2013, and 8,000 shares in each of 2014 and 2015 under this new plan, and 177,000 shares are available for future award under this new plan at December 31, 2015.

Stock repurchase program – Prior to 2013, our board of directors authorized the repurchase of up to 2.0 million shares of our common stock in open market transactions, including block purchases, or in privately-negotiated transactions at unspecified prices and over an unspecified period of time. We may repurchase our common stock from time to time as market conditions permit. The stock repurchase program does not include specific price targets or timetables and may be suspended at any time. Depending on market conditions, we may terminate the program prior to its completion. We would use cash on hand or other sources of liquidity to acquire the shares. Repurchased shares will be added to our treasury and cancelled.

During 2013 we repurchased 49,000 shares in market transactions for an aggregate of $.7 million in cash. We cancelled these treasury shares and allocated their cost to common stock at par value and additional paid-in capital. At December 31, 2015 an additional 1,951,000 shares are available for repurchase under this authorization.

Accumulated other comprehensive loss - Changes in accumulated other comprehensive loss for 2013, 2014 and 2015 are presented in the table below.

	Years ended December 31,
	2013			2014			2015
	(In millions)
Accumulated other comprehensive loss, net of tax:
Currency translation:
Balance at beginning of year	$	(63.5	)	$	(56.8	)	$	(159.8	)
Other comprehensive income (loss)		6.7			(103.0	)		(92.2	)
Balance at end of year	$	(56.8	)	$	(159.8	)	$	(252.0	)

Marketable securities:
Balance at beginning of year	$	4.2		$	10.8		$	(2.9	)
Other comprehensive income (loss):
Unrealized gains (losses) arising during the year		5.3			(13.7	)		(6.5	)
Less reclassification adjustment for amounts included in realized loss		1.3			-			8.8
Balance at end of year	$	10.8		$	(2.9	)	$	(.6	)

Defined benefit pension plans:
Balance at beginning of year	$	(137.3	)	$	(109.4	)	$	(175.4	)
Other comprehensive income (loss):
Amortization of prior service cost and net losses included in net periodic pension cost		10.0			7.2			10.0
Net actuarial gain (loss) arising during year		12.6			(73.2	)		6.2
Plan curtailment		5.3			-			-
Balance at end of year	$	(109.4	)	$	(175.4	)	$	(159.2	)

OPEB plans:
Balance at beginning of year	$	(.5	)	$	3.4		$	2.3
Other comprehensive (income) loss:
Amortization of prior service credit and net losses included in net periodic OPEB cost		(.6	)		(.5	)		(.4	)
Net actuarial gain (loss) arising during year		1.2			(.6	)		.2
Plan amendments		3.3			-			-
Balance at end of year	$	3.4		$	2.3		$	2.1

Interest rate swap:
Balance at beginning of year	$	-		$	-		$	-
Other comprehensive loss:
Unrealized losses arising during the year		-			-			(2.9	)
Less reclassification adjustment for amounts included in interest expense		-			-			.6
Balance at end of year	$	-		$	-		$	(2.3	)

Total accumulated other comprehensive loss:
Balance at beginning of year	$	(197.1	)	$	(152.0	)	$	(335.8	)
Other comprehensive income (loss)		45.1			(183.8	)		(76.2	)
Balance at end of year	$	(152.0	)	$	(335.8	)	$	(412.0	)

See Note 6 for further discussion of our marketable securities, Note 11 for amounts related to our defined benefit pension plans and OPEB plans and Note 16 for discussion of our interest rate swap contract.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(d),(e))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 4.E)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29-31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Name Accounting Standards Codification
-Topic 505
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-Topic 505
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-Section S99
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-Subparagraph (SX 210.3-04)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

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-URI http://asc.fasb.org/extlink&oid=6521494

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

+ Details

Related Party Transactions

12 Months Ended

Dec. 31, 2015

Related Party Transactions

Note 14 - Related party transactions:

We may be deemed to be controlled by Ms. Simmons and Ms. Connelly. See Note 1. Corporations that may be deemed to be controlled by or affiliated with such individuals sometimes engage in (a) intercorporate transactions such as guarantees, management and expense sharing arrangements, shared fee arrangements, joint ventures, partnerships, loans, options, advances of funds on open account, and sales, leases and exchanges of assets, including securities issued by both related and unrelated parties and (b) common investment and acquisition strategies, business combinations, reorganizations, recapitalizations, securities repurchases, and purchases and sales (and other acquisitions and dispositions) of subsidiaries, divisions or other business units, which transactions have involved both related and unrelated parties and have included transactions which resulted in the acquisition by one related party of a publicly-held noncontrolling interest in another related party. While no transactions of the type described above are planned or proposed with respect to us other than as set forth in these financial statements, we continuously consider, review and evaluate, and understand that Contran and related entities consider, review and evaluate such transactions. Depending upon the business, tax and other objectives then relevant, it is possible that we might be a party to one or more such transactions in the future.

Current receivables from and payables to affiliates are summarized in the table below.

	December 31,
	2014		2015
	(In millions)
Current receivable from affiliate:
LPC	$	13.0	$	-
Income taxes receivable from Valhi		3.5		-
Other		1.5		2.5
	$	18.0	$	2.5
Current payables to affiliates:
LPC	$	19.9	$	19.4
Income taxes payable to Valhi		-		.1
Total	$	19.9	$	19.5

From time to time, we may have loans and advances outstanding between us and various related parties pursuant to term and demand notes. We generally enter into these loans and advances for cash management purposes. When we loan funds to related parties, we are generally able to earn a higher rate of return on the loan than we would earn if we invested the funds in other instruments, and when we borrow from related parties, we are generally able to pay a lower rate of interest than we would pay if we had incurred third-party indebtedness. While certain of these loans to affiliates may be of a lesser credit quality than cash equivalent instruments otherwise available to us, we believe we have considered the credit risks in the terms of the applicable loans. In this regard:

In November 2010, we entered into an unsecured revolving demand promissory note with Valhi whereby, as amended, we have agreed to loan Valhi up to $100 million. Our loan to Valhi bears interest at prime plus 1.00%, payable quarterly, with all principal due on demand, but in any event no earlier than December 31, 2017. The amount of our outstanding loans to Valhi at any time is at our discretion. As of December 31, 2014 and 2015, we had no outstanding loans to Valhi under this promissory note; and

In February 2013, we entered into a promissory note with Contran in which we borrowed $190 million on this note and subsequently repaid $20 million during 2013. We prepaid and cancelled this note payable to Contran in February 2014 using a portion of the net proceeds of our new term loan. See Note 9.

Interest income (including unused commitment fees) on our loan to Valhi was $.5 million in each of 2013, 2014 and 2015. Interest expense on our loan from Contran was $11.7 million in 2013 and $1.6 million in 2014.

Amounts payable to LPC are generally for the purchase of TiO₂, while amounts receivable from LPC are generally from the sale of TiO₂ feedstock. See Note 5. Purchases of TiO₂ from LPC were $224.5 million in 2013, $193.1 million in 2014 and $176.5 million in 2015. Sales of feedstock to LPC were $141.1 million in 2013, $98.4 million in 2014 and $80.6 million in 2015.

Under the terms of various intercorporate services agreements (ISAs) entered into between us and various related parties, including Contran, employees of one company will provide certain management, tax planning, financial and administrative services to the other company on a fee basis. Such charges are based upon estimates of the time devoted by the employees of the provider of the services to the affairs of the recipient, and the compensation and associated expenses of such persons. Because of the large number of companies affiliated with Contran, we believe we benefit from cost savings and economies of scale gained by not having certain management, financial and administrative staffs duplicated at each entity, thus allowing certain individuals to provide services to multiple companies but only be compensated by one entity. The net ISA fee charged to us, approved by the independent members of our board of directors, is included in selling, general and administrative expense and corporate expense and was $12.9 million in 2013, $12.3 million in 2014 and $13.4 million in 2015. This agreement is renewed annually and we expect to pay approximately $15.2 million under the ISA during 2016.

Contran and certain of its subsidiaries and affiliates, including us, purchase certain of their insurance policies as a group, with the costs of the jointly-owned policies being apportioned among the participating companies. Tall Pines Insurance Company and EWI RE, Inc., each subsidiaries of Valhi, provide for or broker certain insurance policies for Contran and certain of its subsidiaries and affiliates, including ourselves. Tall Pines purchases reinsurance from third-party insurance carriers with an A.M. Best Company rating of generally at A-(excellent) for substantially all of the risks it underwrites. Consistent with insurance industry practices, Tall Pines and EWI receive commissions from insurance and reinsurance underwriters and/or assess fees for the policies that they provide or broker. The aggregate premiums paid to Tall Pines and EWI by us and our joint venture were $11.3 million in 2013, $10.7 million in 2014 and $10.3 million in 2015. These amounts principally represent payments for insurance premiums, which include premiums or fees paid to Tall Pines or fees paid to EWI. These amounts also include payments to insurers or reinsurers through EWI for the reimbursement of claims within our applicable deductible or retention ranges that such insurers or reinsurers paid to third parties on our behalf, as well as amounts for claims and risk management services and various other third-party fees and expenses incurred by the program. We expect these relationships with Tall Pines and EWI will continue in 2016.

With respect to certain of such jointly-owned policies, it is possible that unusually large losses incurred by one or more insureds during a given policy period could leave the other participating companies without adequate coverage under that policy for the balance of the policy period. As a result, Contran and certain of its subsidiaries and affiliates, including us, have entered into a loss sharing agreement under which any uninsured loss is shared by those entities who have submitted claims under the relevant policy. We believe the benefits, in the form of reduced premiums and broader coverage associated with the group coverage for such policies, justifies the risk associated with the potential for any uninsured loss.

Contran and certain of its subsidiaries, including us, participate in a combined information technology data recovery program that Contran provides from a data recovery center that it established. Pursuant to the program, Contran and certain of its subsidiaries, including us, as a group share information technology data recovery services. The program apportions its costs among the participating companies. We paid Contran $88,000 in 2013, $116,000 in 2014 and $144,000 in 2015 for such services. We expect that this relationship with Contran will continue in 2016.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References + Details

Commitments and Contingencies

12 Months Ended

Dec. 31, 2015

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 15 - Commitments and contingencies:

Environmental matters - Our operations are governed by various environmental laws and regulations. Certain of our operations are and have been engaged in the handling, manufacture or use of substances or compounds that may be considered toxic or hazardous within the meaning of applicable environmental laws and regulations. As with other companies engaged in similar businesses, certain of our past and current operations and products have the potential to cause environmental or other damage. We have implemented and continue to implement various policies and programs in an effort to minimize these risks. Our policy is to maintain compliance with applicable environmental laws and regulations at all of our facilities and to strive to improve our environmental performance. From time to time, we may be subject to environmental regulatory enforcement under U.S. and non-U.S. statutes, the resolution of which typically involves the establishment of compliance programs. It is possible that future developments, such as stricter requirements of environmental laws and enforcement policies thereunder, could adversely affect our production, handling, use, storage, transportation, sale or disposal of such substances. We believe all of our manufacturing facilities are in substantial compliance with applicable environmental laws.

Litigation matters - We are involved in various environmental, contractual, product liability, patent (or intellectual property), employment and other claims and disputes incidental to our business. At least quarterly our management discusses and evaluates the status of any pending litigation to which we are a party. The factors considered in such evaluation include, among other things, the nature of such pending cases, the status of such pending cases, the advice of legal counsel and our experience in similar cases (if any). Based on such evaluation, we make a determination as to whether we believe (i) it is probable a loss has been incurred, and if so if the amount of such loss (or a range of loss) is reasonably estimable, or (ii) it is reasonably possible but not probable a loss has been incurred, and if so if the amount of such loss (or a range of loss) is reasonably estimable, or (iii) the probability a loss has been incurred is remote. We have not accrued any amounts for either of the two matters discussed below, as it is not reasonably possible we have incurred a loss in either case that would be material to our consolidated financial condition, results of operations or liquidity.

In 2013 we entered into a settlement agreement with the class plaintiffs in the consolidated complaint, Haley Paint et al. v. E.I. Du Pont de Nemours and Company, et al. (United States District Court, for the District of Maryland, Case No. 1:10-cv-00318-RDB). Without admitting any fault or wrongdoing, we agreed to pay an aggregate of $35 million (which was paid in 2014), and we and the other defendants have been dismissed with prejudice from this matter. Other operating expense in 2013 includes a $35 million charge related to this settlement.

In March 2013, we were served with the complaint, Los Gatos Mercantile, Inc. d/b/a Los Gatos Ace Hardware, et al v. E.I. Du Pont de Nemours and Company, et al. (United States District Court, for the Northern District of California, Case No. 3:13-cv-01180-SI). The defendants include us, E.I. Du Pont de Nemours & Company, Huntsman International LLC and Millennium Inorganic Chemicals, Inc. As amended by plaintiffs’ second amended complaint, plaintiffs seek to represent a class consisting of indirect purchasers of titanium dioxide in the states of Arizona, Arkansas, California, the District of Columbia, Florida, Kansas, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Mexico, New York, North Carolina, Oregon, South Carolina, Tennessee and Wisconsin that indirectly purchased titanium dioxide from one or more of the defendants on or after March 1, 2002. The complaint alleges that the defendants conspired and combined to fix, raise, maintain, and stabilize the price at which titanium dioxide was sold in the United States and engaged in other anticompetitive conduct. The case is now proceeding in the trial court. We believe the action is without merit, will deny all allegations of wrongdoing and liability and intend to defend against the action vigorously. Based on our quarterly status evaluation of this case, we have determined that it is not reasonably possible that a loss has been incurred in this case.

In November 2013, we were served with the complaint, The Valspar Corporation, et al v. E.I. Du Pont de Nemours and Company, et al. (United States District Court, for the District of Minnesota, Case No. 1:13-cv-03214-RHK-L1B). The defendants include us, E.I. Du Pont de Nemours & Company, Huntsman International LLC, Millennium Inorganic Chemicals, Inc. and the National Titanium Dioxide Company Limited (d/b/a Cristal). The plaintiff opted out of the settlement in the original lawsuit, Haley Paint et al. v. E.I. Du Pont de Nemours and Company, et al. (United States District Court, for the District of Maryland, Case No. 1:10-cv-00318-RDB) and filed its own lawsuit against the defendants. The complaint alleged that the defendants conspired and combined to fix, raise, maintain, and stabilize the price at which titanium dioxide was sold in the United States and engaged in other anticompetitive conduct. In October 2014, the court granted our motion to transfer, and the case is now proceeding in the trial court in the United States District Court for the Southern District of Texas, Case No. 4:14-cv-01130. The trial in this case is currently set to commence in September 2016. We believe the action is without merit, will deny all allegations of wrongdoing and liability and intend to defend against the action vigorously. Based on our quarterly status evaluation of the case, we have determined that while it is reasonably possible (but not probable) that a loss has been incurred in this case, we do not believe the amount of such loss will be material to our consolidated financial condition, results of operations or liquidity.

Concentrations of credit risk - Sales of TiO₂ accounted for approximately 90% of our sales in each of 2013, 2014 and 2015. The remaining sales result from the mining and sale of ilmenite ore (a raw material used in the sulfate pigment production process), and the manufacture and sale of iron-based water treatment chemicals and certain titanium chemical products (derived from co-products of the TiO₂ production processes). TiO₂ is generally sold to the paint, plastics and paper industries. Such markets are generally considered “quality-of-life” markets whose demand for TiO₂ is influenced by the relative economic well-being of the various geographic regions. We sell TiO₂ to over 4,000 customers, with the top ten customers approximating 34% of net sales in 2013, 35% in 2014 and 34% in 2015. In each of 2013, 2014 and 2015 one customer, Behr Process Corporation, accounted for approximately 10% of our net sales. The table below shows the approximate percentage of our TiO₂ sales by volume for our significant markets, Europe and North America, for the last three years.

	2013			2014			2015
Europe		49	%		50	%		52	%
North America		33	%		33	%		29	%

Long-term contracts - We have long-term supply contracts that provide for certain of our TiO₂ feedstock requirements through 2019. The agreements require us to purchase certain minimum quantities of feedstock with minimum purchase commitments aggregating approximately $865 million over the life of the contracts in years subsequent to December 31, 2015. In addition, we have other long-term supply and service contracts that provide for various raw materials and services. These agreements require us to purchase certain minimum quantities or services with minimum purchase commitments aggregating approximately $147 million at December 31, 2015.

Operating leases - Our principal German operating subsidiary leases the land under its Leverkusen TiO₂ production facility pursuant to a lease with Bayer AG that expires in 2050. The Leverkusen facility itself, which we own and which represents approximately one-third of our current TiO₂ production capacity, is located within Bayer’s extensive manufacturing complex. We periodically establish the amount of rent for the land lease associated with the Leverkusen facility by agreement with Bayer for periods of at least two years at a time. The lease agreement provides for no formula, index or other mechanism to determine changes in the rent for such land lease; rather, any change in the rent is subject solely to periodic negotiation between Bayer and us. We recognize any change in the rent based on such negotiations as part of lease expense starting from the time such change is agreed upon by both parties, as any such change in the rent is deemed “contingent rentals” under GAAP. Under the terms of a master supply and services agreement, a majority-owned subsidiary of Bayer provides raw materials, including chlorine, auxiliary and operating materials, utilities and services necessary to operate the Leverkusen facility. This agreement, as amended, expires in 2017 and will automatically renew for successive three year terms until terminated by either party upon one year’s prior notice.

We also lease various other manufacturing facilities and equipment. Some of the leases contain purchase and/or various term renewal options at fair market and fair rental values, respectively. In most cases we expect that, in the normal course of business, such leases will be renewed or replaced by other leases. Net rent expense approximated $15 million in 2013, $16 million in 2014 and $14 million in 2015. At December 31, 2015, future minimum payments under non-cancellable operating leases having an initial or remaining term of more than one year were as follows:

Years ending December 31,	Amount
	(In millions)
2016	$	11.0
2017		8.0
2018		5.1
2019		4.3
2020		3.5
2021 and thereafter		23.7
Total	$	55.6

Approximately $14 million of the $55.6 million aggregate future minimum rental commitments at December 31, 2015 relates to our Leverkusen facility lease discussed above. The minimum commitment amounts for such lease included in the table above for each year through the 2050 expiration of the lease are based upon the current annual rental rate as of December 31, 2015. As discussed above, any change in the rent is based solely on negotiations between Bayer and us, and any such change in the rent is deemed “contingent rentals” under GAAP which is excluded from the future minimum lease payments disclosed above.

Income taxes - We and Valhi are a party to a tax sharing agreement providing for the allocation of tax liabilities and tax payments as described in Note 1. Under applicable law, we, along with every other member of the Contran Tax Group, are each jointly and severally liable for the aggregate federal income tax liability of Contran and the other companies included in the Contran Tax Group for all periods in which we are included in the Contran Tax Group. Valhi has agreed, however, to indemnify us for any liability for income taxes of the Contran Tax Group in excess of our tax liability computed in accordance with the tax sharing agreement.

Financial Instruments

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Financial Instruments

Note 16 - Financial instruments:

The following table summarizes the valuation of our financial instruments recorded on a fair value basis as of December 31, 2014 and 2015:

	Fair value measurements
	Total			Quoted prices in active markets (Level 1)			Significant other observable inputs (Level 2)			Significant unobservable inputs (Level 3)
	(In millions)
Asset (liability)
December 31, 2014
Currency forward contracts	$	(4.2	)	$	(4.2	)	$	-		$	-
Noncurrent marketable securities (See Note 6)		11.1			11.1			-			-
December 31, 2015
Currency forward contracts	$	(1.2	)	$	(1.2	)	$	-		$	-
Interest rate swap contract		(3.5	)		-			(3.5	)		-
Noncurrent marketable securities (See Note 6)		2.4			2.4			-			-

Our earnings and cash flows are subject to fluctuations due to changes in currency exchange rates and interest rates. Our risk management policy allows for the use of derivative financial instruments to prudently manage exposure to currency exchange rates and interest rates. Derivatives that we use are primarily currency forward contracts and interest rate swaps. We have not entered into these contracts for trading or speculative purposes in the past, nor do we currently anticipate entering into such contracts for trading or speculative purposes in the future.

Currency forward contracts - Certain of our sales generated by our non-U.S. operations are denominated in U.S. dollars. We periodically use currency forward contracts to manage a very nominal portion of currency exchange rate risk associated with trade receivables denominated in a currency other than the holder’s functional currency or similar exchange rate risk associated with future sales. Derivatives used to hedge forecasted transactions and specific cash flows associated with financial assets and liabilities denominated in currencies other than the U.S. dollar and which meet the criteria for hedge accounting are designated as cash flow hedges. Consequently, the effective portion of gains and losses is deferred as a component of accumulated other comprehensive income and is recognized in earnings at the time the hedged item affects earnings. Contracts that do not meet the criteria for hedge accounting are marked-to-market at each balance sheet date with any resulting gain or loss recognized in income currently as part of net currency transaction gains and losses. The fair value of the currency forward contracts is determined using Level 1 inputs based on the currency spot forward rates quoted by banks or currency dealers.

At December 31, 2015, we had currency forward contracts to exchange an aggregate of $17.9 million for an equivalent value of Canadian dollars at an exchange rate of Cdn. $1.29 per U.S. dollar. These contracts with Wells Fargo Bank, N.A. mature from January through July 2016 at a rate of $2.6 million per month.

The estimated fair value of such currency forward contracts at December 31, 2015 was a $1.2 million net liability, which is recognized as part of accounts payable and accrued liabilities in our Consolidated Balance Sheet, with a corresponding $1.2 million currency transaction loss in our Consolidated Statement of Operations (in 2014 we had a $4.2 million net liability, of which $4.2 million was recognized as part of accounts payable and accrued liabilities in our Consolidated Balance Sheet, with a corresponding $4.2 million currency transaction loss in our Consolidated Statement of Operations). We did not use hedge accounting for any of our contracts to the extent we held such contracts during 2013, 2014 and 2015.

Interest rate swap contract - As part of our interest rate risk management strategy, in August 2015 we entered into a pay-fixed/receive-variable interest rate swap contract with Wells Fargo Bank, N.A. to minimize our exposure to volatility in LIBOR as it relates to our forecasted outstanding variable-rate indebtedness. Under this interest rate swap, we will pay a fixed rate of 2.016% per annum, payable quarterly, and receive a variable rate of three-month LIBOR (subject to a 1.00% floor), also payable quarterly, in each case based on the notional amount of the swap then outstanding. The effective date of the swap contract was September 30, 2015. The notional amount of the swap started at $344.75 million and declines by $875,000 each quarter beginning December 31, 2015, with a final maturity of the swap contract in February 2020. This swap contract has been designated as a cash flow hedge and qualified as an effective hedge at inception under ASC Topic 815. The effective portion of changes in fair value on this interest rate swap is recorded as a component of other comprehensive income, net of deferred income taxes. Commencing in the fourth quarter of 2015, as interest expense accrues on LIBOR-based variable rate debt, we classify the amount we pay under the pay-fixed leg of the swap and the amount we receive under the receive-variable leg of the swap as part of interest expense, with the net effect that the amount of interest expense we recognize on our LIBOR-based variable rate debt each quarter, as it relates to the notional amount of the swap outstanding each quarter, will be based on a fixed rate of 2.016% per annum in lieu of the level of LIBOR prevailing during the quarter. The amount of hedge ineffectiveness, if any, related to the swap will be recorded in earnings (also as part of interest expense). As of December 31, 2015, there were no gains or losses recognized in earnings in the current period representing hedge ineffectiveness with respect to the interest rate swap.

During the year ended December 31, 2015, the pretax amount recognized in other comprehensive income related to the interest rate swap contract was a $4.4 million loss. During the same period, $.9 million was reclassified from accumulated other comprehensive income into earnings. During the next twelve months, the amount of the December 31, 2015 accumulated other comprehensive income balance that is expected to be reclassified to earnings is $3.5 million pre-tax.

The fair value of the interest rate swap contract at December 31, 2015 was a liability of $3.5 million and is reflected in the Condensed Consolidated Balance Sheet as part of accounts payable and accrued liabilities ($3.3 million) and other noncurrent liabilities ($.2 million). See Notes 8 and 12. The fair value of the interest rate swap was estimated by a third party using inputs that are observable or that can be corroborated by observable market data such as interest rate yield curves, and therefore, is classified within Level 2 of the valuation hierarchy.

The following table presents the financial instruments that are not carried at fair value but which require fair value disclosure as of December 31, 2014 and 2015.

		December 31, 2014				December 31, 2015
		Carrying amount		Fair value		Carrying amount		Fair value
	(In millions)
Cash, cash equivalents and restricted cash		$	169.9	$	169.9	$	94.3	$	94.3
Variable rate term loan			340.9		341.5		338.0		309.5
Common stockholders' equity			781.1		1,508.7		461.9		653.6

At December 31, 2015, the estimated market price of our term loan was $900 per $1,000 principal amount. The fair value of our term loan was based on quoted market prices; however, these quoted market prices represented Level 2 inputs because the markets in which the term loan trades were not active. The fair value of our common stockholders’ equity is based upon quoted market prices at each balance sheet date, which represent Level 1 inputs. Due to their near-term maturities, the carrying amounts of accounts receivable and accounts payable are considered equivalent to fair value. See Notes 3 and 8.

Restructuring Costs

12 Months Ended

Dec. 31, 2015

Restructuring And Related Activities [Abstract]

Restructuring Costs

Note 17 - Restructuring Costs

In the second quarter of 2015, we initiated a restructuring plan designed to improve our long-term cost structure. A portion of such expected cost savings is planned to occur through workforce reductions. During the second, third and fourth quarters of 2015 we implemented certain voluntary and involuntary workforce reductions at certain of our facilities impacting approximately 160 individuals. A substantial portion of such workforce reductions were accomplished through voluntary programs, for which eligible workforce reduction costs are recognized at the time both the employee and employer are irrevocably committed to the terms of the separation. For involuntary programs, eligible costs are recognized when management approves the separation program, the affected employees are properly notified and the costs are estimable. To the extent there is a statutorily-mandated notice period and the affected employee is not required to provide services to us during such notice period, severance and all wages during such notice period are accrued at the time of separation. To the extent the affected employee is required to provide services to us during all or a portion of such notice period, the severance (and if applicable notice period wages for any period beyond the time the affected employee is required to provide future services to us) is accrued ratably over the period in which services will be provided. As of December 31, 2015 we have recognized an aggregate $21.7 million charge for such workforce reductions we had implemented through that date (substantially all of which was recognized in the second quarter of 2015), $10.8 million of which is classified in cost of sales and $10.9 million of which is classified in selling, general and administrative expense. For workforce reductions implemented through December 31, 2015, we do not expect to accrue any further material amounts associated with the affected individuals who are providing service to us past December 31, 2015. All accrued severance costs at December 31, 2015 are expected to be paid through the third quarter of 2018.

A summary of the activity in our accrued workforce reduction costs for 2015 is shown in the table below (in millions):

Accrued workforce reduction costs as of January 1, 2015	$	-
Workforce reduction costs accrued		21.7
Workforce reduction costs paid		(15.9	)
Currency translation adjustments, net		(.2	)

Accrued workforce reduction costs at December 31, 2015	$	5.6

Amounts recognized in the balance sheet:
Current liability	$	5.3
Noncurrent liability		.3

	$	5.6

Recent Accounting Pronouncements	12 Months Ended
Recent Accounting Pronouncements	Dec. 31, 2015
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Recent Accounting Pronouncements	Note 18 - Recent accounting pronouncements: Adopted In April 2015, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which requires unamortized debt issuance costs (or deferred financing costs) to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability, consistent with the presentation of a debt discount. Previously, such unamortized debt issue costs were generally presented as a noncurrent asset. ASU 2015-15, issued by the FASB in August 2015, clarified that the scope of ASU 2015-03 does not include deferred financing costs related to revolving credit facilities. The guidance in the new standard is limited to the presentation of debt issuance costs within its scope and does not affect the recognition, measurement or amortization of debt issuance costs. The standard is effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years and is applied on a retrospective basis. Early adoption is permitted, and we have adopted this ASU in this Annual Report. As a result of adopting this ASU, deferred financing costs of $5.0 million at December 31, 2014, previously recognized as an asset, are now classified as a direct deduction from the carrying value of such term loan in our Consolidated Balance Sheet at such date. All of our other deferred financing costs at December 31, 2014 and 2015 (see Note 9) relate to our revolving credit facilities in North America and Europe, and continue to be recognized as an asset under the guidance of the ASU. In November 2015, the FASB issued ASU 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes, which eliminates the requirement to separate deferred income tax assets and liabilities into current and noncurrent amounts. Under the ASU all deferred income tax assets and liabilities will be classified as noncurrent. The current requirement that deferred income tax assets and liabilities of a tax-paying component of an entity be offset and presented as a single amount is not affected by the amendments in this ASU. This amendment is effective for us beginning in the first quarter of 2017; however early adoption is permitted. In addition, prospective or retrospective application is permitted. We have elected to adopt this ASU retrospectively beginning with this Annual Report and accordingly we have presented all deferred income tax assets and liabilities as noncurrent in our Consolidated Balance Sheets and related Footnotes. At December 31, 2014, we had previously recognized a current deferred income tax asset and liability of $6.3 million and $3.7 million, respectively, and a noncurrent deferred income tax asset and liability of $165.4 million and $6.8 million, respectively. As a result of the retrospective application of this ASU, we no longer have a current deferred income tax asset or liability recognized at December 31, 2014, and the noncurrent deferred income tax asset and liability we now have recognized at December 31, 2014 is $167.3 million and $6.1 million, respectively. See Note 10. Pending adoption In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). This standard replaces existing revenue recognition guidance, which in many cases was tailored for specific industries, with a uniform accounting standard applicable to all industries and transactions. The new standard, as amended, is currently effective for us beginning with the first quarter of 2018. Entities may elect to adopt ASU No. 2014-09 retrospectively for all periods for all contracts and transactions which occurred during the period (with a few exceptions for practical expediency) or retrospectively with a cumulative effect recognized as of the date of adoption. ASU No. 2014-09 is a fundamental rewriting of existing GAAP with respect to revenue recognition, and we are still evaluating the effect the Standard will have on our Consolidated Financial Statements. We currently expect to adopt the standard in the first quarter of 2018. In addition, we have not yet determined the method we will use to adopt the Standard. In January 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, which addresses certain aspects related to the recognition, measurement, presentation and disclosure of financial instruments. The ASU requires equity investments (except for those accounted for under the equity method of accounting or those that result in the consolidation of the investee) to generally be measured at fair value with changes in fair value recognized in net income. The amendment also requires a number of other changes, including among others: simplifying the impairment assessment for equity instruments without readily determinable fair values; eliminating the requirement for public business entities to disclose methods and assumptions used to determine fair value for financial instruments measured at amortized cost; requiring an exit price notion when measuring the fair value of financial instruments for disclosure purposes; and requiring separate presentation of financial assets and liabilities by measurement category and form of asset. The changes indicated above will be effective for us beginning in the first quarter of 2018, with prospective application required, and early adoption is not permitted. The most significant aspect of adopting this ASU will be the requirement to recognize changes in fair value of our available-for-sale marketable equity securities in net income (currently changes in fair value of such securities are recognized in other comprehensive income). In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which is a comprehensive rewriting of the lease accounting guidance which aims to increase comparability and transparency with regard to lease transactions. The primary change will be the recognition of lease assets for the right-of-use of the underlying asset and lease liabilities for the obligation to make payments by lessees on the balance sheet for leases currently classified as operating leases. The ASU also requires increased qualitative disclosure about leases in addition to quantitative disclosures currently required. Companies are required to use a modified retrospective approach to adoption with a practical expedient which will allow companies to continue to account for existing leases under the prior guidance unless a lease is modified, other than the requirement to recognize the right-of-use asset and lease liability for all operating leases. The changes indicated above will be effective for us beginning in the first quarter of 2019, with early adoption permitted. We have not yet evaluated the effect this ASU will have on our Consolidated Financial Statements, but given the material amount of our future minimum payments under non-cancellable operating leases at December 31, 2015 discussed in Note 15, we expect to recognize a material right-of-use lease asset and lease liability upon adoption of the ASU.

Quarterly Results of Operations

12 Months Ended

Dec. 31, 2015

Selected Quarterly Financial Information [Abstract]

Quarterly Results of Operations

Note 19 – Quarterly results of operations (unaudited):

	Quarter ended
	March 31		June 30			September 30			December 31
	(In millions, except per share data)
Year ended December 31, 2014
Net sales	$	420.1	$	443.5		$	414.8		$	373.5
Gross margin		80.5		93.8			95.7			79.7
Net income		14.3		33.1			31.9			19.9
Basic and diluted income per share	$	.12	$	.29		$	.28		$	.17
Year ended December 31, 2015
Net sales	$	365.1	$	360.2		$	336.5		$	287.0
Gross margin		77.4		46.5			43.2			25.2
Net income (loss)		18.4		(159.8	)		(11.8	)		(20.4	)
Basic and diluted income (loss) per share	$	.16	$	(1.38	)	$	(.10	)	$	(.18	)

In 2014 we recognized a non-cash income tax benefit of $5.7 million in the second quarter of 2014 related to a net reduction in our reserve for uncertain tax positions.

We recognized the following amounts during 2015:

pretax charges of $21.1 million, $.4 million and $.2 million in the second, third and fourth quarters, respectively, in workforce reduction charges (see Note 17),

a $12.0 million non-cash pretax impairment charge in the third quarter due to other-than-temporary impairment on our investment in a marketable security held for sale (see Note 6), and

non-cash deferred income tax expense of $150.3 million, $2.3 million and $6.4 million in the second, third and fourth quarters, respectively, related to the recognition of a deferred income tax asset valuation allowance related to our German and Belgium operations (see Note 10).

The sum of the quarterly per share amounts may not equal the annual per share amounts due to relative changes in the weighted average number of shares used in the per share computations.

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Organization and Basis of Presentation

Unless otherwise indicated, references in this report to “we,” “us” or “our” refers to Kronos Worldwide, Inc. and its subsidiaries, taken as a whole.

Management's Estimates

Principles of Consolidation

Translation of Currencies

Derivatives and Hedging Activities

Cash and Cash Equivalents

Restricted Cash and Cash Equivalents

Marketable Securities and Securities Transactions

—

Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

—

Level 2 - Quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the assets or liability; and

—

Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable.

See Notes 6, 11 and 16.

Accounts Receivable

Accounts receivable - We provide an allowance for doubtful accounts for known and estimated potential losses arising from sales to customers based on a periodic review of these accounts. See Note 3.

Inventories and Cost of Sales

Investment in TiO2 Manufacturing Joint Venture

Investment in TiO₂ manufacturing joint venture - We account for our investment in a 50%-owned manufacturing joint venture by the equity method. See Note 5.

Property and Equipment and Depreciation

Asset		Useful lives
Buildings and improvements		10 to 40 years
Machinery and equipment		3 to 20 years
Mine development costs		units-of-production

We expense costs incurred for maintenance, repairs and minor renewals (including planned major maintenance) while we capitalize expenditures for major improvements.

Long-term Debt

Income Taxes

Income Tax Uncertainties, Policy

Net Sales

Selling, General and Administrative Expense

Shipping and Handling Costs

We include shipping and handling costs in selling, general and administrative expense and these costs were $93 million in 2013, $95 million in 2014 and $87 million in 2015.

Research and Development

We expense research, development and certain sales technical support costs as incurred and these costs approximated $18 million in 2013, $19 million in 2014 and $16 million in 2015.

Advertising Costs

We expense advertising costs as incurred and these costs were not material in any year presented.

Employee Benefit Plans

Concentrations of credit risk

	2013			2014			2015
Europe		49	%		50	%		52	%
North America		33	%		33	%		29	%

Operating leases

Years ending December 31,	Amount
	(In millions)
2016	$	11.0
2017		8.0
2018		5.1
2019		4.3
2020		3.5
2021 and thereafter		23.7
Total	$	55.6

Recent Accounting Pronouncements

Adopted

In April 2015, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which requires unamortized debt issuance costs (or deferred financing costs) to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability, consistent with the presentation of a debt discount. Previously, such unamortized debt issue costs were generally presented as a noncurrent asset. ASU 2015-15, issued by the FASB in August 2015, clarified that the scope of ASU 2015-03 does not include deferred financing costs related to revolving credit facilities. The guidance in the new standard is limited to the presentation of debt issuance costs within its scope and does not affect the recognition, measurement or amortization of debt issuance costs. The standard is effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years and is applied on a retrospective basis. Early adoption is permitted, and we have adopted this ASU in this Annual Report. As a result of adopting this ASU, deferred financing costs of $5.0 million at December 31, 2014, previously recognized as an asset, are now classified as a direct deduction from the carrying value of such term loan in our Consolidated Balance Sheet at such date. All of our other deferred financing costs at December 31, 2014 and 2015 (see Note 9) relate to our revolving credit facilities in North America and Europe, and continue to be recognized as an asset under the guidance of the ASU.

In November 2015, the FASB issued ASU 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes, which eliminates the requirement to separate deferred income tax assets and liabilities into current and noncurrent amounts. Under the ASU all deferred income tax assets and liabilities will be classified as noncurrent. The current requirement that deferred income tax assets and liabilities of a tax-paying component of an entity be offset and presented as a single amount is not affected by the amendments in this ASU. This amendment is effective for us beginning in the first quarter of 2017; however early adoption is permitted. In addition, prospective or retrospective application is permitted. We have elected to adopt this ASU retrospectively beginning with this Annual Report and accordingly we have presented all deferred income tax assets and liabilities as noncurrent in our Consolidated Balance Sheets and related Footnotes. At December 31, 2014, we had previously recognized a current deferred income tax asset and liability of $6.3 million and $3.7 million, respectively, and a noncurrent deferred income tax asset and liability of $165.4 million and $6.8 million, respectively. As a result of the retrospective application of this ASU, we no longer have a current deferred income tax asset or liability recognized at December 31, 2014, and the noncurrent deferred income tax asset and liability we now have recognized at December 31, 2014 is $167.3 million and $6.1 million, respectively. See Note 10.

Pending adoption

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). This standard replaces existing revenue recognition guidance, which in many cases was tailored for specific industries, with a uniform accounting standard applicable to all industries and transactions. The new standard, as amended, is currently effective for us beginning with the first quarter of 2018. Entities may elect to adopt ASU No. 2014-09 retrospectively for all periods for all contracts and transactions which occurred during the period (with a few exceptions for practical expediency) or retrospectively with a cumulative effect recognized as of the date of adoption. ASU No. 2014-09 is a fundamental rewriting of existing GAAP with respect to revenue recognition, and we are still evaluating the effect the Standard will have on our Consolidated Financial Statements. We currently expect to adopt the standard in the first quarter of 2018. In addition, we have not yet determined the method we will use to adopt the Standard.

In January 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, which addresses certain aspects related to the recognition, measurement, presentation and disclosure of financial instruments. The ASU requires equity investments (except for those accounted for under the equity method of accounting or those that result in the consolidation of the investee) to generally be measured at fair value with changes in fair value recognized in net income. The amendment also requires a number of other changes, including among others: simplifying the impairment assessment for equity instruments without readily determinable fair values; eliminating the requirement for public business entities to disclose methods and assumptions used to determine fair value for financial instruments measured at amortized cost; requiring an exit price notion when measuring the fair value of financial instruments for disclosure purposes; and requiring separate presentation of financial assets and liabilities by measurement category and form of asset. The changes indicated above will be effective for us beginning in the first quarter of 2018, with prospective application required, and early adoption is not permitted. The most significant aspect of adopting this ASU will be the requirement to recognize changes in fair value of our available-for-sale marketable equity securities in net income (currently changes in fair value of such securities are recognized in other comprehensive income).

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which is a comprehensive rewriting of the lease accounting guidance which aims to increase comparability and transparency with regard to lease transactions. The primary change will be the recognition of lease assets for the right-of-use of the underlying asset and lease liabilities for the obligation to make payments by lessees on the balance sheet for leases currently classified as operating leases. The ASU also requires increased qualitative disclosure about leases in addition to quantitative disclosures currently required. Companies are required to use a modified retrospective approach to adoption with a practical expedient which will allow companies to continue to account for existing leases under the prior guidance unless a lease is modified, other than the requirement to recognize the right-of-use asset and lease liability for all operating leases. The changes indicated above will be effective for us beginning in the first quarter of 2019, with early adoption permitted. We have not yet evaluated the effect this ASU will have on our Consolidated Financial Statements, but given the material amount of our future minimum payments under non-cancellable operating leases at December 31, 2015 discussed in Note 15, we expect to recognize a material right-of-use lease asset and lease liability upon adoption of the ASU.

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Estimated Useful Life of Assets

Asset		Useful lives
Buildings and improvements		10 to 40 years
Machinery and equipment		3 to 20 years
Mine development costs		units-of-production

Geographic Information (Tables)

12 Months Ended

Dec. 31, 2015

Segments Geographical Areas [Abstract]

Net Sales and Property and Equipment by Geographical Information

	Years ended December 31,
	2013			2014			2015
	(In millions)
Net sales - point of origin:
Germany	$	915.8		$	844.1		$	690.0
United States		830.4			783.1			657.8
Canada		246.5			252.3			216.9
Belgium		254.6			249.3			198.8
Norway		261.2			256.8			183.5
Eliminations		(776.1	)		(733.7	)		(598.2	)
Total	$	1,732.4		$	1,651.9		$	1,348.8

Net sales - point of destination:
Europe	$	904.6		$	882.9		$	700.4
North America		575.7			544.3			421.4
Other		252.1			224.7			227.0
Total	$	1,732.4		$	1,651.9		$	1,348.8

	December 31,
	2014		2015
	(In millions)
Identifiable assets - net property and equipment:
Germany	$	237.9	$	212.1
Belgium		88.8		80.1
Norway		82.3		69.5
Canada		61.8		53.8
Other		8.9		14.0
Total	$	479.7	$	429.5

Accounts and Other Receivables (Tables)

12 Months Ended

Dec. 31, 2015

Receivables [Abstract]

Accounts and Other Receivables

	December 31,
	2014			2015
	(In millions)
Trade receivables	$	230.9		$	194.8
Recoverable VAT and other receivables		23.4			17.8
Refundable income taxes		7.5			6.8
Allowance for doubtful accounts		(1.6	)		(1.1	)
Total	$	260.2		$	218.3

Inventories, Net (Tables)

12 Months Ended

Dec. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventories, Net

	December 31,
	2014		2015
	(In millions)
Raw materials	$	76.0	$	75.9
Work in process		32.9		21.1
Finished products		252.5		232.4
Supplies		62.2		57.8
Total	$	423.6	$	387.2

Investment in TiO2 Manufacturing Joint Venture (Tables)

12 Months Ended

Dec. 31, 2015

Louisiana Pigment Company, L.P.

Investment In Joint Venture [Line Items]

Summary of Net Distributions, Balance Sheets and Income Statements

	Years ended December 31,
	2013			2014			2015
	(In millions)
Distributions from LPC	$	70.7		$	48.0		$	48.2
Contributions to LPC		(59.8	)		(37.4	)		(41.7	)
Net distributions	$	10.9		$	10.6		$	6.5

Summary balance sheets of LPC are shown below:

	December 31,
	2014		2015
	(In millions)
ASSETS
Current assets	$	107.4	$	96.2
Property and equipment, net		110.6		110.1
Total assets	$	218.0	$	206.3

LIABILITIES AND PARTNERS' EQUITY
Other liabilities, primarily current	$	37.3	$	37.8
Partners' equity		180.7		168.5
Total liabilities and partners' equity	$	218.0	$	206.3

Summary income statements of LPC are shown below:

	Years ended December 31,
	2013		2014		2015
	(In millions)
Revenues and other income:
Kronos	$	224.5	$	193.1	$	176.5
Tioxide		224.6		193.8		162.5
Total revenues and other income		449.1		386.9		339.0

Cost and expenses:
Cost of sales		448.7		386.4		338.5
General and administrative		.4		.5		.5
Total costs and expenses		449.1		386.9		339.0
Net income	$	-	$	-	$	-

Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2015

Investments Debt And Equity Securities [Abstract]

Marketable Securities

Marketable security	Fair value measurement level	Market value		Cost basis		Unrealized loss
December 31, 2014
Valhi common stock	1	$	11.0	$	15.3	$	(4.3	)
NL and CompX common stocks	1		.1		.1		-
Total		$	11.1	$	15.4	$	(4.3	)

December 31, 2015
Valhi common stock	1	$	2.3	$	3.2	$	(.9	)
NL and CompX common stocks	1		.1		.1		-
Total		$	2.4	$	3.3	$	(.9	)

Other Noncurrent Assets (Tables)

12 Months Ended

Dec. 31, 2015

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Schedule of Other Noncurrent Assets

	December 31,
	2014		2015
	(In millions)
Deferred financing costs, net	$	1.8	$	1.0
Pension asset		-		.4
Other		4.3		1.7
Total	$	6.1	$	3.1

Accounts Payable and Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2015

Payables And Accruals [Abstract]

Components of Accounts Payable and Accrued Liabilities

	December 31,
	2014		2015
	(In millions)
Accounts payable	$	121.4	$	96.1
Accrued sales discounts and rebates		14.8		18.9
Employee benefits		24.6		14.2
Accrued workforce reduction costs		-		5.3
Interest rate swap contract		-		3.3
Accrued interest		.5		.2
Other		41.3		34.7
Total	$	202.6	$	172.7

Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Components of Long Term Debt

	December 31,
	2014		2015
	(In millions)
Term loan	$	340.9	$	338.0
Other		2.7		3.0
Total debt		343.6		341.0
Less current maturities		3.9		3.8
Total long-term debt	$	339.7	$	337.2

Aggregate Maturities of Long-Term Debt and Other

Aggregate maturities and other - Aggregate maturities of debt at December 31, 2015 are presented in the table below.

Year ending December 31,	Amount
	(In millions)
2016	$	3.8
2017		3.5
2018		4.1
2019		4.2
2020		330.5
2021 and thereafter		.8
Gross maturities		346.9
Less original issue discount and debt issuance costs		5.9
Total	$	341.0

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

+ Details

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Components of Income Taxes and Comprehensive Provision for Income Taxes Allocation

	Years ended December 31,
	2013			2014			2015
	(In millions)
Pre-tax income (loss):
U.S.	$	(15.1	)	$	59.2		$	5.5
Non-U.S.		(144.8	)		74.5			(36.3	)
Total	$	(159.9	)	$	133.7		$	(30.8	)

Expected tax expense (benefit), at U.S. federal statutory income tax rate of 35%	$	(56.0	)	$	46.8		$	(10.8	)
Non-U.S. tax rates		4.2			(4.2	)		.5
Incremental net tax (benefit) on earnings and losses of non-U.S. companies		(7.4	)		(3.7	)		(8.7	)
Valuation allowance		-			-			159.0
Adjustment to the reserve for uncertain tax positions, net		(.4	)		(5.1	)		.7
Nondeductible expenses		2.1			1.9			2.1
U.S. state income taxes and other, net		(.4	)		(1.2	)		-
Provision for income taxes (benefit)	$	(57.9	)	$	34.5		$	142.8

Components of income tax expense:
Currently payable (refundable):
U.S. federal and state	$	7.3		$	1.9		$	.3
Non-U.S.		(1.2	)		15.2			3.3
		6.1			17.1			3.6

Deferred income taxes (benefit):
U.S. federal and state		(22.0	)		10.0			(6.4	)
Non-U.S.		(42.0	)		7.4			145.6
		(64.0	)		17.4			139.2
Provision for income taxes (benefit)	$	(57.9	)	$	34.5		$	142.8

Comprehensive provision for income taxes (benefit) allocable to:
Net income (loss)	$	(57.9	)	$	34.5		$	142.8
Other comprehensive income (loss):
Currency translation		5.5			(16.9	)		-
Marketable securities		3.1			(6.7	)		1.1
Pension plans		11.8			(30.1	)		1.5
OPEB plans		1.4			(.4	)		(.1	)
Interest rate swap		-			-			(1.3	)
Total	$	(36.1	)	$	(19.6	)	$	144.0

Components of Net Deferred Income Taxes

The components of our net deferred income taxes at December 31, 2014 and 2015 are summarized in the following table.

	December 31,
	2014						2015
	Assets			Liabilities			Assets			Liabilities
	(In millions)
Tax effect of temporary differences related to:
Inventories	$	4.6		$	(4.9	)	$	3.2		$	(3.5	)
Property and equipment		-			(67.5	)		-			(59.3	)
Accrued OPEB costs		2.4			-			2.0			-
Accrued pension cost		47.6			-			39.4			-
Currency revaluation on intercompany debt		5.6			-			18.6			-
Other accrued liabilities and deductible differences		13.7			-			19.4			-
Other taxable differences		-			(.9	)		-			(.5	)
Tax on unremitted earnings of non-U.S. subsidiaries		-			(2.6	)		-			(1.9	)
Tax loss and tax credit carryforwards		163.3			-			157.4			-
Valuation allowance		(.1	)		-			(168.9	)		-
Adjusted gross deferred tax assets (liabilities)		237.1			(75.9	)		71.1			(65.2	)
Netting by tax jurisdiction		(69.8	)		69.8			(57.1	)		57.1
Net noncurrent deferred tax asset (liability)	$	167.3		$	(6.1	)	$	14.0		$	(8.1	)

Changes in Amount of Uncertain Tax Positions

The following table shows the changes in the amount of our uncertain tax positions (exclusive of the effect of interest and penalties discussed above) during 2013, 2014 and 2015:

	Years ended December 31,
	2013			2014			2015
	(In millions)
Changes in unrecognized tax benefits:
Unrecognized tax benefits at beginning of year	$	13.0		$	15.9		$	10.4
Net increase (decrease):
Tax positions taken in prior periods		(.3	)		(5.4	)		(.3	)
Tax positions taken in current period		3.9			1.1			1.1
Lapse due to applicable statute of limitations		-			-			(.2	)
Change in currency exchange rates		(.7	)		(1.2	)		(1.3	)
Unrecognized tax benefits at end of year	$	15.9		$	10.4		$	9.7

Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2015

CMRT

Composition of Pension Plan Assets

	December 31,
	2014				2015
	(In millions)
CMRT asset value	$	715.5		$	648.8
CMRT fair value input:
Level 1		67	%		54	%
Level 2		13			27
Level 3		20			19
		100	%		100	%
CMRT asset mix:
Domestic equities, principally publicly traded		48	%		29	%
International equities, principally publicly traded		11			22
Fixed income securities, principally publicly traded		32			38
Privately managed limited partnerships		7			5
Hedge funds		-			5
Other, primarily cash		2			1
		100	%		100	%

Foreign Pension Plans, Defined Benefit

Funded Status of Defined Benefit Plan

The funded status of our non-U.S. defined benefit pension plans is presented in the table below.

	December 31,
	2014			2015
	(In millions)
Change in projected benefit obligations (PBO):
Benefit obligations at beginning of the year	$	595.1		$	648.4
Service cost		9.9			11.2
Interest cost		21.7			14.6
Participant contributions		1.9			1.6
Actuarial losses (gains)		120.5			(8.7	)
Change in currency exchange rates		(74.4	)		(76.4	)
Benefits paid		(26.3	)		(21.0	)
Benefit obligations at end of the year		648.4			569.7

Change in plan assets:
Fair value of plan assets at beginning of the year		431.4			414.8
Actual return on plan assets		39.7			10.6
Employer contributions		19.8			17.1
Participant contributions		1.9			1.6
Change in currency exchange rates		(51.7	)		(51.1	)
Benefits paid		(26.3	)		(21.0	)
Fair value of plan assets at end of year		414.8			372.0
Funded status	$	(233.6	)	$	(197.7	)

Amounts recognized in the balance sheet:
Noncurrent pension asset	$	-		$	.4
Accrued pension costs:
Current		(.7	)		-
Noncurrent		(232.9	)		(198.1	)
Total	$	(233.6	)	$	(197.7	)

Accumulated other comprehensive loss:
Actuarial losses	$	248.3		$	230.6
Prior service cost		2.2			1.9
Total	$	250.5		$	232.5

Accumulated benefit obligations (ABO)	$	616.6		$	545.2

Net Periodic Benefit Cost (Credit)

	Years ended December 31,
	2013			2014			2015
	(In millions)
Net periodic pension cost:
Service cost benefits	$	13.1		$	9.9		$	11.2
Interest cost on PBO		21.1			21.7			14.6
Expected return on plan assets		(18.5	)		(20.0	)		(16.6	)
Settlement gain		-			(.3	)		-
Curtailment loss		7.3			-			-
Recognized actuarial losses		12.5			10.0			13.6
Amortization of prior service cost		1.1			.5			.4
Amortization of net transition obligations		.4			.1			-
Total	$	37.0		$	21.9		$	23.2

Schedule of Defined Benefit Pension Plan Balances with Accumulated Benefit Obligation Exceeded Fair Value of Plan Assets

Certain information concerning our non-U.S. defined benefit pension plans is presented in the table below.

	December 31,
	2014		2015
	(In millions)
Plans for which the ABO exceeds plan assets:
PBO	$	621.7	$	518.1
ABO		592.5		498.7
Fair value of plan assets		390.6		321.6

Key Actuarial Assumptions Used

Rate	December 31,
	2014			2015
Discount rate		2.5	%		2.6	%
Increase in future compensation levels		2.6	%		2.9	%

The weighted-average rate assumptions used in determining the net periodic pension cost for our non-U.S. defined benefit pension plans for 2013, 2014 and 2015 are presented in the table below.

Rate	Years ended December 31,
	2013			2014			2015
Discount rate		3.7	%		3.8	%		2.5	%
Increase in future compensation levels		3.1	%		2.7	%		2.6	%
Long-term return on plan assets		5.0	%		5.0	%		4.6	%

United States Pension Plans of US Entity, Defined Benefit

Funded Status of Defined Benefit Plan

The funded status of our U.S. defined benefit pension plan is presented in the table below.

	December 31,
	2014			2015
	(In millions)
Change in PBO:
Benefit obligations at beginning of the year	$	17.2		$	19.8
Interest cost		.8			.8
Actuarial losses (gains)		2.9			(1.0	)
Benefits paid		(1.1	)		(1.0	)
Benefit obligations at end of the year		19.8			18.6

Change in plan assets:
Fair value of plan assets at beginning of the year		15.8			15.5
Actual return (loss) on plan assets		.5			(.7	)
Employer contributions		.3			.1
Benefits paid		(1.1	)		(1.0	)
Fair value of plan assets at end of year		15.5			13.9
Funded status	$	(4.3	)	$	(4.7	)

Amounts recognized in the balance sheet:
Accrued pension costs:
Current	$	(.1	)	$	(.1	)
Noncurrent		(4.2	)		(4.6	)
Total	$	(4.3	)	$	(4.7	)

Accumulated other comprehensive loss - actuarial losses	$	11.2		$	11.6

ABO	$	19.8		$	18.6

Net Periodic Benefit Cost (Credit)

	Years ended December 31,
	2013			2014			2015
	(In millions)
Net periodic pension cost (income):
Interest cost on PBO	$	.7		$	.8		$	.8
Expected return on plan assets		(1.4	)		(1.2	)		(1.1	)
Recognized actuarial losses		.5			.3			.5
Total	$	(.2	)	$	(.1	)	$	.2

Key Actuarial Assumptions Used

Rate	Years ended December 31,
	2013			2014			2015
Discount rate		3.6	%		4.5	%		3.8	%
Long-term return on plan assets		10.0	%		7.5	%		7.5	%

OPEB

Benefit Payments

Years ending December 31,	Amount
	(In millions)
2016	$	.4
2017		.4
2018		.4
2019		.4
2020		.4
Next 5 years		2.3

Funded Status of Defined Benefit Plan

The funded status of our OPEB plans is presented in the table below:

	December 31,
	2014			2015
	(In millions)
Change in accumulated OPEB obligations:
Obligations at beginning of the year	$	8.2		$	8.5
Service cost		.1			.1
Interest cost		.4			.3
Actuarial losses (gains)		.8			(.2	)
Change in currency exchange rates		(.6	)		(1.3	)
Benefits paid from employer contributions		(.4	)		(.4	)
Obligations at end of the year		8.5			7.0
Fair value of plan assets		-			-
Funded status	$	(8.5	)	$	(7.0	)

Amounts recognized in the balance sheet:
Current accrued pension costs	$	(.4	)	$	(.3	)
Noncurrent accrued pension costs		(8.1	)		(6.7	)
Total	$	(8.5	)	$	(7.0	)

Accumulated other comprehensive income:
Net actuarial losses	$	3.6		$	3.1
Prior service credit		(7.0	)		(6.2	)
Total	$	(3.4	)	$	(3.1	)

Net Periodic Benefit Cost (Credit)

	Years ended December 31,
	2013			2014			2015
	(In millions)
Net periodic OPEB cost:
Service cost	$	.3		$	.1		$	.1
Interest cost		.6			.4			.3
Amortization of prior service credit		(.6	)		(.9	)		(.8	)
Recognized actuarial losses		.3			.2			.3
Curtailment gain		(.6	)		-			-
Total	$	-		$	(.2	)	$	(.1	)

Key Actuarial Assumptions Used

	2014			2015
Healthcare inflation:
Initial rate		7.0	%		7.0	%
Ultimate rate		5.0	%		5.0	%
Year of ultimate rate achievement		2021			2021
Weighted average discount rate		3.7	%		3.9	%

Changes in Benefit Obligations Recognized in Accumulated Other Comprehensive Income (Loss)

The table below details the changes in benefit obligations recognized in accumulated other comprehensive income (loss) during 2013, 2014 and 2015.

	Years ended December 31,
	2013			2014			2015
	(In millions)
Changes in benefit obligations recognized in other comprehensive income (loss):
Current year:
Net actuarial gain/(loss)	$	1.6		$	(.8	)	$	.2
Plan amendments/curtailment		4.5			-			-
Amortization of unrecognized:
Net actuarial loss		.3			.2			.3
Prior service cost		(1.1	)		(.9	)		(.8	)
Total	$	5.3		$	(1.5	)	$	(.3	)

Defined Benefit Pension Plans

Benefit Payments

Years ending December 31,	Amount
	(In millions)
2016	$	19.8
2017		20.0
2018		20.4
2019		20.9
2020		21.7
Next 5 years		122.0

Changes in Benefit Obligations Recognized in Accumulated Other Comprehensive Income (Loss)

The table below details the changes in our consolidated other comprehensive income (loss) during 2013, 2014 and 2015.

	Years ended December 31,
	2013		2014			2015
	(In millions)
Changes in plan assets and benefit obligations recognized in other comprehensive income (loss):
Current year:
Net actuarial gain (loss)	$	14.7	$	(103.9	)	$	2.7
Plan curtailment		7.1		-			-
Settlements		-		(.3	)		-
Amortization of unrecognized:
Net actuarial losses		13.0		10.3			14.1
Prior service cost		1.1		.5			.4
Net transition obligations		.4		.1			-
Total	$	36.3	$	(93.3	)	$	17.2

Composition of Pension Plan Assets

	Fair Value Measurements at December 31, 2014
	Total		Quoted prices in active markets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
	(In millions)
Germany	$	240.7	$	-	$	-	$	240.7
Canada:
Local currency equities		12.4		12.4		-		-
Non local currency equities		34.4		34.4		-		-
Local currency fixed income		50.3		50.3		-		-
Global mutual fund		10.1		10.1		-		-
Cash and other		.6		.6		-		-
Norway:
Local currency equities		1.9		1.9		-		-
Non local currency equities		5.1		5.1		-		-
Local currency fixed income		29.3		29.3		-		-
Non local currency fixed income		3.8		3.8		-		-
Real estate		4.5		-		-		4.5
Cash and other		10.3		9.2		-		1.1
U.S.
CMRT		15.5		-		15.5		-
Other		11.4		3.6		-		7.8
Total	$	430.3	$	160.7	$	15.5	$	254.1

	Fair Value Measurements at December 31, 2015
	Total		Quoted prices in active markets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
	(In millions)
Germany	$	223.1	$	-	$	-	$	223.1
Canada:
Local currency equities		9.6		9.6		-		-
Non local currency equities		23.3		23.3		-		-
Local currency fixed income		50.6		50.6		-		-
Global mutual fund		6.8		6.8		-		-
Cash and other		.5		.5		-		-
Norway:
Local currency equities		2.0		2.0		-		-
Non local currency equities		3.6		3.6		-		-
Local currency fixed income		24.5		24.5		-		-
Non local currency fixed income		4.7		4.7		-		-
Real estate		4.2		-		-		4.2
Cash and other		7.9		6.7		-		1.2
U.S.
CMRT		13.9		-		13.9		-
Other		11.2		3.5		-		7.7
Total	$	385.9	$	135.8	$	13.9	$	236.2

Roll forward of Change in Fair Value of Level 3 Assets

A rollforward of the change in fair value of Level 3 assets follows.

	December 31,
	2014			2015
	(In millions)
Fair value at beginning of year	$	261.5		$	254.1
Gain on assets held at end of year		24.5			6.5
Gain on assets sold during the year		.3			.3
Assets purchased		16.9			13.7
Assets sold		(15.2	)		(12.4	)
Currency exchange rate fluctuations		(33.9	)		(26.0	)
Fair value at end of year	$	254.1		$	236.2

Other Noncurrent Liabilities (Tables)

12 Months Ended

Dec. 31, 2015

Other Liabilities Disclosure [Abstract]

Components of Other Noncurrent Liabilities

	December 31,
	2014		2015
	(In millions)
Reserve for uncertain tax positions	$	13.1	$	11.8
Employee benefits		8.1		7.5
Interest rate swap contract		-		.2
Insurance claims and expenses		.3		.2
Other		5.3		4.7
Total	$	26.8	$	24.4

Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Schedule of Changes in Accumulated Other Comprehensive Loss

Accumulated other comprehensive loss - Changes in accumulated other comprehensive loss for 2013, 2014 and 2015 are presented in the table below.

	Years ended December 31,
	2013			2014			2015
	(In millions)
Accumulated other comprehensive loss, net of tax:
Currency translation:
Balance at beginning of year	$	(63.5	)	$	(56.8	)	$	(159.8	)
Other comprehensive income (loss)		6.7			(103.0	)		(92.2	)
Balance at end of year	$	(56.8	)	$	(159.8	)	$	(252.0	)

Marketable securities:
Balance at beginning of year	$	4.2		$	10.8		$	(2.9	)
Other comprehensive income (loss):
Unrealized gains (losses) arising during the year		5.3			(13.7	)		(6.5	)
Less reclassification adjustment for amounts included in realized loss		1.3			-			8.8
Balance at end of year	$	10.8		$	(2.9	)	$	(.6	)

Defined benefit pension plans:
Balance at beginning of year	$	(137.3	)	$	(109.4	)	$	(175.4	)
Other comprehensive income (loss):
Amortization of prior service cost and net losses included in net periodic pension cost		10.0			7.2			10.0
Net actuarial gain (loss) arising during year		12.6			(73.2	)		6.2
Plan curtailment		5.3			-			-
Balance at end of year	$	(109.4	)	$	(175.4	)	$	(159.2	)

OPEB plans:
Balance at beginning of year	$	(.5	)	$	3.4		$	2.3
Other comprehensive (income) loss:
Amortization of prior service credit and net losses included in net periodic OPEB cost		(.6	)		(.5	)		(.4	)
Net actuarial gain (loss) arising during year		1.2			(.6	)		.2
Plan amendments		3.3			-			-
Balance at end of year	$	3.4		$	2.3		$	2.1

Interest rate swap:
Balance at beginning of year	$	-		$	-		$	-
Other comprehensive loss:
Unrealized losses arising during the year		-			-			(2.9	)
Less reclassification adjustment for amounts included in interest expense		-			-			.6
Balance at end of year	$	-		$	-		$	(2.3	)

Total accumulated other comprehensive loss:
Balance at beginning of year	$	(197.1	)	$	(152.0	)	$	(335.8	)
Other comprehensive income (loss)		45.1			(183.8	)		(76.2	)
Balance at end of year	$	(152.0	)	$	(335.8	)	$	(412.0	)

Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2015

Summary of Current Receivables from and Payables to Affiliates

Current receivables from and payables to affiliates are summarized in the table below.

	December 31,
	2014		2015
	(In millions)
Current receivable from affiliate:
LPC	$	13.0	$	-
Income taxes receivable from Valhi		3.5		-
Other		1.5		2.5
	$	18.0	$	2.5
Current payables to affiliates:
LPC	$	19.9	$	19.4
Income taxes payable to Valhi		-		.1
Total	$	19.9	$	19.5

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Commitments And Contingencies Disclosure [Abstract]

Summary of Approximate Percentage of TiO2 Sales by Volume

The table below shows the approximate percentage of our TiO₂ sales by volume for our significant markets, Europe and North America, for the last three years.

	2013			2014			2015
Europe		49	%		50	%		52	%
North America		33	%		33	%		29	%

Summary of Future Minimum Payments Under Noncancellable Operating Leases

At December 31, 2015, future minimum payments under non-cancellable operating leases having an initial or remaining term of more than one year were as follows:

Years ending December 31,	Amount
	(In millions)
2016	$	11.0
2017		8.0
2018		5.1
2019		4.3
2020		3.5
2021 and thereafter		23.7
Total	$	55.6

Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Valuation of Financial Instruments Recorded on Fair Value Basis

The following table summarizes the valuation of our financial instruments recorded on a fair value basis as of December 31, 2014 and 2015:

	Fair value measurements
	Total			Quoted prices in active markets (Level 1)			Significant other observable inputs (Level 2)			Significant unobservable inputs (Level 3)
	(In millions)
Asset (liability)
December 31, 2014
Currency forward contracts	$	(4.2	)	$	(4.2	)	$	-		$	-
Noncurrent marketable securities (See Note 6)		11.1			11.1			-			-
December 31, 2015
Currency forward contracts	$	(1.2	)	$	(1.2	)	$	-		$	-
Interest rate swap contract		(3.5	)		-			(3.5	)		-
Noncurrent marketable securities (See Note 6)		2.4			2.4			-			-

Financial Instruments not Carried at Fair Value but which Require Fair Value Disclosure

The following table presents the financial instruments that are not carried at fair value but which require fair value disclosure as of December 31, 2014 and 2015.

		December 31, 2014				December 31, 2015
		Carrying amount		Fair value		Carrying amount		Fair value
	(In millions)
Cash, cash equivalents and restricted cash		$	169.9	$	169.9	$	94.3	$	94.3
Variable rate term loan			340.9		341.5		338.0		309.5
Common stockholders' equity			781.1		1,508.7		461.9		653.6

Restructuring Costs (Tables)

12 Months Ended

Dec. 31, 2015

Workforce Reduction

Summary of Activity in Accrued Workforce Reduction

A summary of the activity in our accrued workforce reduction costs for 2015 is shown in the table below (in millions):

Accrued workforce reduction costs as of January 1, 2015	$	-
Workforce reduction costs accrued		21.7
Workforce reduction costs paid		(15.9	)
Currency translation adjustments, net		(.2	)

Accrued workforce reduction costs at December 31, 2015	$	5.6

Amounts recognized in the balance sheet:
Current liability	$	5.3
Noncurrent liability		.3

	$	5.6

Quarterly Results of Operations (Tables)

12 Months Ended

Dec. 31, 2015

Selected Quarterly Financial Information [Abstract]

Quarterly Results of Operations

	Quarter ended
	March 31		June 30			September 30			December 31
	(In millions, except per share data)
Year ended December 31, 2014
Net sales	$	420.1	$	443.5		$	414.8		$	373.5
Gross margin		80.5		93.8			95.7			79.7
Net income		14.3		33.1			31.9			19.9
Basic and diluted income per share	$	.12	$	.29		$	.28		$	.17
Year ended December 31, 2015
Net sales	$	365.1	$	360.2		$	336.5		$	287.0
Gross margin		77.4		46.5			43.2			25.2
Net income (loss)		18.4		(159.8	)		(11.8	)		(20.4	)
Basic and diluted income (loss) per share	$	.16	$	(1.38	)	$	(.10	)	$	(.18	)

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Organization And Basis Of Presentation [Line Items]
Capitalized interest costs	$ 1.1	$ 2.9	$ 1.5
Income taxes	1.4	17.5	33.2
Earnings of non-U.S. subsidiaries subject to permanent reinvestment plans aggregated	645.0
Shipping and handling costs	87.0	95.0	93.0
Research, development and certain sales technical support costs	$ 16.0	19.0	18.0
Louisiana Pigment Company, L.P.
Organization And Basis Of Presentation [Line Items]
Owned manufacturing joint venture	50.00%
Valhi Inc
Organization And Basis Of Presentation [Line Items]
Ownership percentage in subsidiary	50.00%
Ownership percentage in company	83.00%
Income taxes		$ 8.2	$ 24.2
Income tax refunds, net	$ 3.5
NL Industries Inc.
Organization And Basis Of Presentation [Line Items]
Ownership percentage	30.00%
Contran
Organization And Basis Of Presentation [Line Items]
Ownership percentage of parent company held by related party	93.00%
Controlling interest description	Consequently, Ms. Simmons and Ms. Connelly may be deemed to control Contran, Valhi, NL and us.

Summary of Significant Accounting Policies - Estimated Useful Lives of Assets (Detail)	12 Months Ended
	Dec. 31, 2015
Building and improvements \| Minimum
Property Plant And Equipment Estimated Useful Life [Line Items]
Property plant and equipment useful life	10 years
Building and improvements \| Maximum
Property Plant And Equipment Estimated Useful Life [Line Items]
Property plant and equipment useful life	40 years
Machinery and equipment \| Minimum
Property Plant And Equipment Estimated Useful Life [Line Items]
Property plant and equipment useful life	3 years
Machinery and equipment \| Maximum
Property Plant And Equipment Estimated Useful Life [Line Items]
Property plant and equipment useful life	20 years
Mine development costs
Property Plant And Equipment Estimated Useful Life [Line Items]
Mine development costs	units-of-production

Geographic Information - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Non-U.S. Subsidiaries
Geographic Information [Line Items]
Net assets of non-US subsidiaries	$ 123	$ 380

Geographic Information - Net Sales and Property and Equipment by Geographical Information (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Information About Revenue And Geographic Areas [Line Items]
Net sales	$ 287.0	$ 336.5	$ 360.2	$ 365.1	$ 373.5	$ 414.8	$ 443.5	$ 420.1	$ 1,348.8	$ 1,651.9	$ 1,732.4
Net property and equipment	429.5				479.7				429.5	479.7
Germany
Information About Revenue And Geographic Areas [Line Items]
Net property and equipment	212.1				237.9				212.1	237.9
Canada
Information About Revenue And Geographic Areas [Line Items]
Net property and equipment	53.8				61.8				53.8	61.8
Belgium
Information About Revenue And Geographic Areas [Line Items]
Net property and equipment	80.1				88.8				80.1	88.8
Norway
Information About Revenue And Geographic Areas [Line Items]
Net property and equipment	69.5				82.3				69.5	82.3
Other
Information About Revenue And Geographic Areas [Line Items]
Net property and equipment	$ 14.0				$ 8.9				14.0	8.9
Point of origin \| Reportable Geographical Components \| Germany
Information About Revenue And Geographic Areas [Line Items]
Net sales									690.0	844.1	915.8
Point of origin \| Reportable Geographical Components \| United States
Information About Revenue And Geographic Areas [Line Items]
Net sales									657.8	783.1	830.4
Point of origin \| Reportable Geographical Components \| Canada
Information About Revenue And Geographic Areas [Line Items]
Net sales									216.9	252.3	246.5
Point of origin \| Reportable Geographical Components \| Belgium
Information About Revenue And Geographic Areas [Line Items]
Net sales									198.8	249.3	254.6
Point of origin \| Reportable Geographical Components \| Norway
Information About Revenue And Geographic Areas [Line Items]
Net sales									183.5	256.8	261.2
Point of origin \| Eliminations
Information About Revenue And Geographic Areas [Line Items]
Net sales									(598.2)	(733.7)	(776.1)
Point of destination \| Europe
Information About Revenue And Geographic Areas [Line Items]
Net sales									700.4	882.9	904.6
Point of destination \| North America
Information About Revenue And Geographic Areas [Line Items]
Net sales									421.4	544.3	575.7
Point of destination \| Other
Information About Revenue And Geographic Areas [Line Items]
Net sales									$ 227.0	$ 224.7	$ 252.1

Accounts and Other Receivables - Accounts and Other Receivables (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Accounts Notes And Loans Receivable [Line Items]
Allowance for doubtful accounts	$ (1.1)	$ (1.6)
Total	218.3	260.2
Trade receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts and other receivables	194.8	230.9
Recoverable VAT and other receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts and other receivables	17.8	23.4
Refundable income taxes
Accounts Notes And Loans Receivable [Line Items]
Refundable income taxes	$ 6.8	$ 7.5

Inventories, Net - Schedule of Inventories, Net (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Raw materials	$ 75.9	$ 76.0
Work in process	21.1	32.9
Finished products	232.4	252.5
Supplies	57.8	62.2
Total	$ 387.2	$ 423.6

Investment in TiO2 Manufacturing Joint Venture - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015 USD ($)
Investment In Joint Venture [Line Items]
Equity earnings of LPC	$ 0
Louisiana Pigment Company, L.P.
Investment In Joint Venture [Line Items]
Equity interest in LPC	50.00%
Tioxide.
Investment In Joint Venture [Line Items]
Equity interest in LPC	50.00%
Tioxide. \| Louisiana Pigment Company, L.P.
Investment In Joint Venture [Line Items]
Product purchased from LPC	50.00%
Products purchased from plant	52.00%

Investment in TiO2 Manufacturing Joint Venture - Components of Net Distributions from LPC (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Investment In Joint Venture [Line Items]
Net distributions	$ 6.5	$ 10.6	$ 10.9
Louisiana Pigment Company, L.P.
Investment In Joint Venture [Line Items]
Distributions from LPC	48.2	48.0	70.7
Contributions to LPC	(41.7)	(37.4)	(59.8)
Net distributions	$ 6.5	$ 10.6	$ 10.9

Investment in TiO2 Manufacturing Joint Venture - Summary of Balance Sheets of LPC (Detail) - Louisiana Pigment Company, L.P. - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Current assets	$ 96.2	$ 107.4
Property and equipment, net	110.1	110.6
Total assets	206.3	218.0
LIABILITIES AND PARTNERS' EQUITY
Other liabilities, primarily current	37.8	37.3
Partners' equity	168.5	180.7
Total liabilities and partners' equity	$ 206.3	$ 218.0

- Definition

The amount of liabilities and equity reported by an equity method investment of the entity.

+ References + Details

- Definition

The amount of noncurrent assets reported by an equity method investment of the entity.

+ References + Details

Investment in TiO2 Manufacturing Joint Venture - Summary of Income Statements of LPC (Detail) - Louisiana Pigment Company, L.P. - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues and other income:
Total revenues and other income	$ 339.0	$ 386.9	$ 449.1
Cost and expenses:
Cost of sales	338.5	386.4	448.7
General and administrative	0.5	0.5	0.4
Total costs and expenses	339.0	386.9	449.1
Kronos
Revenues and other income:
Total revenues and other income	176.5	193.1	224.5
Tioxide.
Revenues and other income:
Total revenues and other income	$ 162.5	$ 193.8	$ 224.6

Marketable Securities - Classification of Marketable Securities (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Schedule Of Available For Sale Securities [Line Items]
Market value	$ 2.4	$ 11.1
Cost basis	3.3	15.4
Unrealized loss	(0.9)	(4.3)
Level 1 \| Common stock \| Valhi
Schedule Of Available For Sale Securities [Line Items]
Market value	2.3	11.0
Cost basis	3.2	15.3
Unrealized loss	(0.9)	(4.3)
Level 1 \| Common stock \| NL And CompX
Schedule Of Available For Sale Securities [Line Items]
Market value	0.1	0.1
Cost basis	$ 0.1	$ 0.1

- Definition

Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income.

+ References + Details

Marketable Securities - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended	9 Months Ended	12 Months Ended
	Feb. 29, 2016	Sep. 30, 2015	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Schedule Of Available For Sale Securities [Line Items]
Pre-tax impairment charge to write down		$ 12.0
Valhi Inc
Schedule Of Available For Sale Securities [Line Items]
Pre-tax impairment charge to write down			$ 12.0
Impairment charge realized loss, reclassified out of accumulated other comprehensive income along with related deferred income tax				$ 4.2
Valhi Inc \| Common stock
Schedule Of Available For Sale Securities [Line Items]
Investments in publicly-traded shares				1.7	1.7
Quoted market price of per share				$ 1.34	$ 6.41
Valhi Inc \| Common stock \| Subsequent Event
Schedule Of Available For Sale Securities [Line Items]
Difference between aggregate quoted market price and aggregate cost	$ 1.0

Other Noncurrent Assets - Schedule of Other Noncurrent Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Disclosure Other Non Current Assets Schedule Of Other Non Current Assets [Abstract]
Deferred financing costs, net	$ 1.0	$ 1.8
Pension asset	0.4
Other	1.7	4.3
Total	$ 3.1	$ 6.1

Accounts Payable and Accrued Liabilities - Components of Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Payables And Accruals [Abstract]
Accounts payable	$ 96.1	$ 121.4
Accrued sales discounts and rebates	18.9	14.8
Employee benefits	14.2	24.6
Accrued workforce reduction costs	5.3
Interest rate swap contract	3.3
Accrued interest	0.2	0.5
Other	34.7	41.3
Total	$ 172.7	$ 202.6

- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References + Details

Long-Term Debt - Components of Long-Term Debt (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Debt Disclosure [Abstract]
Term loan	$ 338.0	$ 340.9
Other	3.0	2.7
Total debt	341.0	343.6
Less current maturities	3.8	3.9
Long-term debt	$ 337.2	$ 339.7

Long-Term Debt - Term Loan - Additional Information (Detail) - USD ($)	1 Months Ended			12 Months Ended
	May 31, 2015	Feb. 28, 2014	Feb. 28, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2012
Debt Instrument [Line Items]
Loss on prepayment of debt, net						$ (8,900,000)
Cash on hand used to repay term loan						150,000,000
Term Loan
Debt Instrument [Line Items]
Debt instrument face amount							$ 400,000,000
Payment of Principal Amount						390,000,000
Term Loan \| 2014 Term Loan, Amended 2015
Debt Instrument [Line Items]
Debt instrument maturity date	Feb. 29, 2020
Long term debt prepayments terms				A provision was added whereby if we elected to call all or a portion of the outstanding principal balance within six months of completing the amendment (i.e. before November 2015), a 1% call premium of the aggregate principal amount so prepaid would apply.
Call premium percentage	1.00%
Fee in connection with amendment	$ 750,000
Percentage of average interest rate, during period				4.29%
Percentage of average interest rate, at period end				4.00%
Unamortized discount				$ 1,200,000	$ 1,500,000
Debt Issuance Cost				4,700,000	5,000,000
Term Loan \| London Interbank Offered Rate (LIBOR) \| 2014 Term Loan, Amended 2015
Debt Instrument [Line Items]
Debt instrument basis spread on variable rate	3.00%
Term Loan \| London Interbank Offered Rate (LIBOR) \| 2014 Term Loan
Debt Instrument [Line Items]
Debt instrument basis spread on variable rate		3.75%
Term Loan \| Base Rate \| 2014 Term Loan, Amended 2015
Debt Instrument [Line Items]
Debt instrument basis spread on variable rate	2.00%
Term Loan \| Base Rate \| 2014 Term Loan
Debt Instrument [Line Items]
Debt instrument basis spread on variable rate		2.75%
New Term Loan
Debt Instrument [Line Items]
Debt instrument face amount		$ 350,000,000
Principal amount percentage of loan raised		99.50%
Aggregate amount of loan issued		$ 348,300,000
Minimum LIBOR rate		1.00%
Quarterly principal repayments		$ 875,000
Commencement date of quarterly principal repayments		Jun. 30, 2014
Debt instrument maturity date		Feb. 29, 2020
Minimum amount of debt default for using customary default provisions		$ 50,000,000
New Term Loan \| U.S. wholly-owned subsidiaries
Debt Instrument [Line Items]
Term Loan Collateralized Priority		100.00%
New Term Loan \| Canadian First-Tier European Subsidiaries
Debt Instrument [Line Items]
Term Loan Collateralized Priority		65.00%
New Term Loan \| Kronos International, Inc
Debt Instrument [Line Items]
Loan pledged as collateral from wholly-owned subsidiary		$ 395,700,000
New Term Loan \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument basis spread on variable rate		3.75%
New Term Loan \| Base Rate
Debt Instrument [Line Items]
Debt instrument basis spread on variable rate		2.75%
New Term Loan \| Contran
Debt Instrument [Line Items]
Payment of Principal Amount		$ 170,000,000
Promissory note \| Contran
Debt Instrument [Line Items]
Borrowing for prepayment of term loan						190,000,000
Borrowings under credit facility during the period			$ 190,000,000			190,000,000
Repayments of Lines of Credit						20,000,000
Revolving North American Credit Facility
Debt Instrument [Line Items]
Borrowing for prepayment of term loan						$ 50,000,000
Borrowings under credit facility during the period				0	81,000,000
Repayments of Lines of Credit				$ 0	$ 92,100,000

Long-Term Debt - Revolving Credit Facilities - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2015 EUR (€)	Dec. 31, 2015 CAD ($)	Dec. 31, 2014 CAD ($)	Dec. 31, 2011 CAD ($)
Canadian First-Tier European Subsidiaries
Line Of Credit Facility [Line Items]
Issuance of letter of credit	$ 25,000,000
Revolving North American Credit Facility
Line Of Credit Facility [Line Items]
Issuance of letter of credit	$ 125,000,000
Line of Credit Maturity	2017-06
Borrowings under credit facility during the period	$ 0	$ 81,000,000
Repayments of Lines of Credit	0	$ 92,100,000
Amount available for Borrowing	$ 68,300,000
Revolving North American Credit Facility \| Minimum
Line Of Credit Facility [Line Items]
Fixed charge coverage ratio to be maintained	110.00%
Revolving North American Credit Facility \| Minimum \| London Interbank Offered Rate (LIBOR)
Line Of Credit Facility [Line Items]
Debt instrument basis spread on variable rate	1.50%
Revolving North American Credit Facility \| Minimum \| Base Rate
Line Of Credit Facility [Line Items]
Debt instrument basis spread on variable rate	0.50%
Revolving North American Credit Facility \| Maximum
Line Of Credit Facility [Line Items]
Fixed charge coverage ratio to be maintained	100.00%
Revolving North American Credit Facility \| Maximum \| London Interbank Offered Rate (LIBOR)
Line Of Credit Facility [Line Items]
Debt instrument basis spread on variable rate	2.00%
Revolving North American Credit Facility \| Maximum \| Base Rate
Line Of Credit Facility [Line Items]
Debt instrument basis spread on variable rate	1.00%
Letter Of Credit
Line Of Credit Facility [Line Items]
Aggregate letter of credit outstanding amount	$ 15,000,000
Letter Of Credit \| Prior to December 31, 2014
Line Of Credit Facility [Line Items]
Aggregate letter of credit outstanding amount					$ 7.9
European Credit Facility
Line Of Credit Facility [Line Items]
Issuance of letter of credit \| €			€ 120,000,000
Line of Credit Maturity	2017-09
Borrowings under credit facility during the period	$ 0
Repayments of Lines of Credit	0
Amount available for Borrowing	25,300,000		€ 23,100,000
Outstanding borrowings under this credit facility	$ 0
Percentage of borrowings available under credit facility	19.00%		19.00%	19.00%
European Credit Facility \| London Interbank Offered Rate (LIBOR)
Line Of Credit Facility [Line Items]
Debt instrument basis spread on variable rate	1.90%
Economic Development Agency Credit Facility
Line Of Credit Facility [Line Items]
Issuance of letter of credit						$ 4.5
Outstanding borrowings under this credit facility	$ 3,300,000			$ 4.5

Long-Term Debt - Aggregate Maturities of Long-Term Debt and Other (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Long Term Debt By Maturity [Abstract]
2016	$ 3.8
2017	3.5
2018	4.1
2019	4.2
2020	330.5
2021 and thereafter	0.8
Gross maturities	346.9
Less original issue discount and debt issuance costs	5.9
Total debt	$ 341.0	$ 343.6

Income Taxes - Components of Income Taxes and Comprehensive Provision for Income Taxes Allocation (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule Of Income Tax [Line Items]
U.S.	$ 5.5	$ 59.2	$ (15.1)
Non-U.S.	(36.3)	74.5	(144.8)
Income (loss) before income taxes	(30.8)	133.7	(159.9)
Expected tax expense (benefit), at U.S. federal statutory income tax rate of 35%	(10.8)	46.8	(56.0)
Non-U.S. tax rates	0.5	(4.2)	4.2
Incremental net tax (benefit) on earnings and losses of non-U.S. companies	(8.7)	(3.7)	(7.4)
Valuation allowance	159.0
Adjustment to the reserve for uncertain tax positions, net	0.7	(5.1)	(0.4)
Nondeductible expenses	2.1	1.9	2.1
U.S. state income taxes and other, net		(1.2)	(0.4)
Provision for income taxes (benefit)	142.8	34.5	(57.9)
Currently payable (refundable):
U.S. federal and state	0.3	1.9	7.3
Non-U.S.	3.3	15.2	(1.2)
Total	3.6	17.1	6.1
Deferred income taxes (benefit):
U.S. federal and state	(6.4)	10.0	(22.0)
Non-U.S.	145.6	7.4	(42.0)
Total	139.2	17.4	(64.0)
Comprehensive provision for income taxes (benefit) allocable to net income (loss)	142.8	34.5	(57.9)
Other comprehensive income (loss):
Currency translation		(16.9)	5.5
Marketable securities	1.1	(6.7)	3.1
Interest rate swap	(1.3)
Total	144.0	(19.6)	(36.1)
Defined Benefit Pension Plans
Other comprehensive income (loss):
Benefit plans	1.5	(30.1)	11.8
OPEB
Other comprehensive income (loss):
Benefit plans	$ (0.1)	$ (0.4)	$ 1.4

Income Taxes - Components of Income Taxes and Comprehensive Provision for Income Taxes Allocation (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
U.S. Federal statutory income tax rate	35.00%

Income Taxes - Additional Information (Detail) $ in Millions, $ in Millions		3 Months Ended				12 Months Ended
	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2015 CAD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Income Tax [Line Items]
U.S. Federal statutory income tax rate						35.00%
Valuation allowance						$ 159.0
Non-cash deferred income tax asset valuation allowance						9.8
Aggregate letter of credit outstanding amount							$ 7.9
Non-cash income tax benefit recognized related to release of portion of reserve for uncertain tax positions					$ 5.7
Amount of interest and penalties		$ 2.3				2.3		$ 2.8	$ 3.7
Benefits if uncertain tax position recognized		7.8				7.8		$ 8.8	$ 15.1
Canadian Income Tax Audit
Income Tax [Line Items]
Non-cash income tax benefit recognized related to release of portion of reserve for uncertain tax positions					3.0
U.S. Income Tax Audit
Income Tax [Line Items]
Non-cash income tax benefit recognized related to release of portion of reserve for uncertain tax positions					$ 3.1
Germany and Belgian
Income Tax [Line Items]
Valuation allowance	$ 150.3	6.4	$ 2.3	$ 150.3
Non-cash deferred income tax asset valuation allowance		8.7	$ 8.7
Corporate Purposes \| Germany
Income Tax [Line Items]
Net operating loss carryforwards		683.0				683.0
Corporate Purposes \| Belgium
Income Tax [Line Items]
Net operating loss carryforwards		86.0				86.0
Trade Tax Purposes \| Germany
Income Tax [Line Items]
Net operating loss carryforwards		$ 96.0				$ 96.0

Income Taxes - Components of Net Deferred Income Taxes (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Inventories, Assets	$ 3.2	$ 4.6
Accrued OPEB costs, Assets	2.0	2.4
Accrued pension cost, Assets	39.4	47.6
Currency revaluation on intercompany debt, Assets	18.6	5.6
Other accrued liabilities and deductible differences, Assets	19.4	13.7
Tax loss and tax credit carryforwards, Assets	157.4	163.3
Valuation allowance, Assets	(168.9)	(0.1)
Adjusted gross deferred tax assets	71.1	237.1
Netting by tax jurisdiction, Assets	(57.1)	(69.8)
Net noncurrent deferred tax asset	14.0	167.3
Inventories, Liabilities	(3.5)	(4.9)
Property and equipment, Liabilities	(59.3)	(67.5)
Other taxable differences, Liabilities	(0.5)	(0.9)
Tax on unremitted earnings of non-U.S. subsidiaries, Liabilities	(1.9)	(2.6)
Adjusted gross deferred tax liabilities	(65.2)	(75.9)
Netting by tax jurisdiction, Liabilities	57.1	69.8
Net noncurrent deferred tax liability	$ (8.1)	$ (6.1)

Income Taxes - Changes in Amount of Uncertain Tax Positions (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Changes in unrecognized tax benefits:
Unrecognized tax benefits at beginning of year	$ 10.4	$ 15.9	$ 13.0
Net increase (decrease):
Tax positions taken in prior periods	(0.3)	(5.4)	(0.3)
Tax positions taken in current period	1.1	1.1	3.9
Lapse due to applicable statute of limitations	(0.2)
Change in currency exchange rates	(1.3)	(1.2)	(0.7)
Unrecognized tax benefits at end of year	$ 9.7	$ 10.4	$ 15.9

Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jan. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Defined contribution benefit plan expense		$ 2.7	$ 2.6	$ 1.8
Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contributions next fiscal year		15.2
Unrecognized actuarial losses to be recognized in next fiscal year		(11.4)
Unrecognized prior service cost to be recognized in next fiscal year		$ 0.2
Foreign Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Discount rate		2.60%	2.50%
Expected long-term rate of return		4.60%	5.00%	5.00%
Foreign Pension Plans, Defined Benefit \| Canada
Defined Benefit Plan Disclosure [Line Items]
Curtailment charge				$ 7.1
Special termination benefits				$ 0.2
Foreign Pension Plans, Defined Benefit \| Canada \| Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation		38.00%
Average basis points of long-term rate of return on investment		125 basis points above the applicable equity or fixed income index
Foreign Pension Plans, Defined Benefit \| Canada \| Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation		55.00%
Average basis points of long-term rate of return on investment		125 basis points above the applicable equity or fixed income index
Foreign Pension Plans, Defined Benefit \| Canada \| Other Investment Securities And Cash
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation		7.00%
Average basis points of long-term rate of return on investment		125 basis points above the applicable equity or fixed income index
Foreign Pension Plans, Defined Benefit \| Norway \| Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return		7.00%
Target asset allocation		11.00%
Foreign Pension Plans, Defined Benefit \| Norway \| Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return		3.00%
Target asset allocation		79.00%
Foreign Pension Plans, Defined Benefit \| Norway \| Other Investment Securities And Cash
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return		5.00%
Foreign Pension Plans, Defined Benefit \| Norway \| Real Estate
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return		5.00%
Target asset allocation		7.00%
Foreign Pension Plans, Defined Benefit \| Norway \| Real Estate And Other Investments
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation		11.00%
United States Pension Plans of US Entity, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Discount rate		4.10%	3.80%
Expected long-term rate of return		7.50%	7.50%	10.00%
United States Pension Plans of US Entity, Defined Benefit \| CMRT
Defined Benefit Plan Disclosure [Line Items]
Percentage of average annual rate of return				14.00%
Expected long-term rate of return	7.50%			10.00%
United States Pension Plans of US Entity, Defined Benefit \| CMRT \| Level 1 and Level 2
Defined Benefit Plan Disclosure [Line Items]
Percentage of fair value of asset		81.00%	80.00%

Employee Benefit Plans - Defined Benefit Pension Plans Payment (Detail) $ in Millions	Dec. 31, 2015 USD ($)
Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
2016	$ 19.8
2017	20.0
2018	20.4
2019	20.9
2020	21.7
Next 5 years	122.0
OPEB
Defined Benefit Plan Disclosure [Line Items]
2016	0.4
2017	0.4
2018	0.4
2019	0.4
2020	0.4
Next 5 years	$ 2.3

Employee Benefit Plans - Funded Status of Defined Benefit Pension Plans (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Foreign Pension Plans, Defined Benefit
Change in projected benefit obligations (PBO):
Benefit obligations at beginning of the year	$ 648.4	$ 595.1
Service cost	11.2	9.9	$ 13.1
Interest cost	14.6	21.7	21.1
Participant contributions	1.6	1.9
Actuarial losses (gains)	(8.7)	120.5
Change in currency exchange rates	(76.4)	(74.4)
Benefits paid	(21.0)	(26.3)
Benefit obligations at end of the year	569.7	648.4	595.1
Change in plan assets:
Fair value of plan assets at beginning of the year	414.8	431.4
Actual return (loss) on plan assets	10.6	39.7
Employer contributions	17.1	19.8
Participant contributions	1.6	1.9
Change in currency exchange rates	(51.1)	(51.7)
Benefits paid	(21.0)	(26.3)
Fair value of plan assets at end of year	372.0	414.8	431.4
Funded status	(197.7)	(233.6)
Amounts recognized in the balance sheet:
Noncurrent pension asset	0.4
Accrued pension costs, current		(0.7)
Accrued pension costs, noncurrent	(198.1)	(232.9)
Total	(197.7)	(233.6)
Accumulated other comprehensive loss-actuarial losses	230.6	248.3
Prior service cost	1.9	2.2
Total	232.5	250.5
Accumulated benefit obligations (ABO)	545.2	616.6
United States Pension Plans of US Entity, Defined Benefit
Change in projected benefit obligations (PBO):
Benefit obligations at beginning of the year	19.8	17.2
Interest cost	0.8	0.8	0.7
Actuarial losses (gains)	(1.0)	2.9
Benefits paid	(1.0)	(1.1)
Benefit obligations at end of the year	18.6	19.8	17.2
Change in plan assets:
Fair value of plan assets at beginning of the year	15.5	15.8
Actual return (loss) on plan assets	(0.7)	0.5
Employer contributions	0.1	0.3
Benefits paid	(1.0)	(1.1)
Fair value of plan assets at end of year	13.9	15.5	15.8
Funded status	(4.7)	(4.3)
Amounts recognized in the balance sheet:
Accrued pension costs, current	(0.1)	(0.1)
Accrued pension costs, noncurrent	(4.6)	(4.2)
Total	(4.7)	(4.3)
Accumulated other comprehensive loss-actuarial losses	11.6	11.2
Accumulated benefit obligations (ABO)	18.6	19.8
OPEB
Change in projected benefit obligations (PBO):
Benefit obligations at beginning of the year	8.5	8.2
Service cost	0.1	0.1	0.3
Interest cost	0.3	0.4	0.6
Actuarial losses (gains)	(0.2)	0.8
Change in currency exchange rates	(1.3)	(0.6)
Benefits paid	(0.4)	(0.4)
Benefit obligations at end of the year	7.0	8.5	$ 8.2
Change in plan assets:
Benefits paid	(0.4)	(0.4)
Funded status	(7.0)	(8.5)
Amounts recognized in the balance sheet:
Accrued pension costs, current	(0.3)	(0.4)
Accrued pension costs, noncurrent	(6.7)	(8.1)
Total	(7.0)	(8.5)
Accumulated other comprehensive loss-actuarial losses	3.1	3.6
Prior service cost	(6.2)	(7.0)
Total	$ (3.1)	$ (3.4)

Employee Benefit Plans - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Foreign Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 11.2	$ 9.9	$ 13.1
Interest cost	14.6	21.7	21.1
Expected return on plan assets	(16.6)	(20.0)	(18.5)
Settlement gain		(0.3)
Curtailment loss (gain)			7.3
Recognized actuarial losses	13.6	10.0	12.5
Amortization of prior service cost	0.4	0.5	1.1
Amortization of net transition obligations		0.1	0.4
Total	23.2	21.9	37.0
United States Pension Plans of US Entity, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Interest cost	0.8	0.8	0.7
Expected return on plan assets	(1.1)	(1.2)	(1.4)
Recognized actuarial losses	0.5	0.3	0.5
Total	0.2	(0.1)	(0.2)
OPEB
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.1	0.1	0.3
Interest cost	0.3	0.4	0.6
Curtailment loss (gain)			(0.6)
Recognized actuarial losses	0.3	0.2	0.3
Amortization of prior service cost	(0.8)	(0.9)	$ (0.6)
Total	$ (0.1)	$ (0.2)

Employee Benefit Plans - Schedule of Defined Benefit Pension Plan Balances with Accumulated Benefit Obligation Exceeded Fair Value of Plan Assets (Detail) - Foreign Pension Plans, Defined Benefit - Defined Benefit Pension Plans ABO Exceeds Plan Assets - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Projected Benefit Obligation (PBO)	$ 518.1	$ 621.7
Accumulated Benefit Obligation (ABO)	498.7	592.5
Fair value of plan assets	$ 321.6	$ 390.6

Employee Benefit Plans - Schedule of Assumptions Used (Detail) - Foreign Pension Plans, Defined Benefit	Dec. 31, 2015	Dec. 31, 2014
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Discount rate	2.60%	2.50%
Increase in future compensation levels	2.90%	2.60%

Employee Benefit Plans - Weighted Average Rate Assumptions Used in Determining Net Periodic Pension Cost (Detail)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Foreign Pension Plans, Defined Benefit
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Discount rate	2.50%	3.80%	3.70%
Increase in future compensation levels	2.60%	2.70%	3.10%
Long-term return on plan assets	4.60%	5.00%	5.00%
United States Pension Plans of US Entity, Defined Benefit
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Discount rate	3.80%	4.50%	3.60%
Long-term return on plan assets	7.50%	7.50%	10.00%

Employee Benefit Plans - Changes In Benefit Obligations Recognized In Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Pension Plans
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Net actuarial gain (loss)	$ 2.7	$ (103.9)	$ 14.7
Plan curtailment			7.1
Settlements		(0.3)
Net actuarial loss	14.1	10.3	13.0
Prior service cost	0.4	0.5	1.1
Net transition obligations		0.1	0.4
Total	17.2	(93.3)	36.3
OPEB
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Net actuarial gain (loss)	0.2	(0.8)	1.6
Plan amendments/curtailment			4.5
Net actuarial loss	0.3	0.2	0.3
Prior service cost	(0.8)	(0.9)	(1.1)
Total	$ (0.3)	$ (1.5)	$ 5.3

Employee Benefit Plans - Schedule of Aggregate Fair Value of Asset and Supplemental Asset Mix (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Combined Master Retirement Trust Asset [Line Items]
CMRT asset value	$ 648.8	$ 715.5
CMRT fair value input:
Fair value input	100.00%	100.00%
CMRT asset mix:
Percentage of combined master retirement trust asset mix	100.00%	100.00%
Domestic equities, principally publicly traded
CMRT asset mix:
Percentage of combined master retirement trust asset mix	29.00%	48.00%
International equities, principally publicly traded
CMRT asset mix:
Percentage of combined master retirement trust asset mix	22.00%	11.00%
Fixed income securities, principally publicly traded
CMRT asset mix:
Percentage of combined master retirement trust asset mix	38.00%	32.00%
Privately managed limited partnerships
CMRT asset mix:
Percentage of combined master retirement trust asset mix	5.00%	7.00%
Hedge funds
CMRT asset mix:
Percentage of combined master retirement trust asset mix	5.00%
Other
CMRT asset mix:
Percentage of combined master retirement trust asset mix	1.00%	2.00%
Level 1
CMRT fair value input:
Fair value input	54.00%	67.00%
Level 2
CMRT fair value input:
Fair value input	27.00%	13.00%
Level 3
CMRT fair value input:
Fair value input	19.00%	20.00%

Employee Benefit Plans - Rollforward of Change in Fair Value of Level 3 Assets (Detail) - Level 3 - Defined Benefit Pension Plans - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value at beginning of year	$ 254.1	$ 261.5
Gain on assets held at end of year	6.5	24.5
Gain on assets sold during the year	0.3	0.3
Assets purchased	13.7	16.9
Assets sold	(12.4)	(15.2)
Currency exchange rate fluctuations	(26.0)	(33.9)
Fair value at end of year	$ 236.2	$ 254.1

Employee Benefit Plans - Postretirement Benefits Other Than Pensions (OPEB) - Additional Information (Detail) - OPEB - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Health care benefits	65 years
Unrecognized actuarial losses to be recognized in next fiscal year	$ 0.2
Unrecognized prior service credit to be recognized in next fiscal year	0.8
Accumulated benefit obligations (ABO)	$ 7.0	$ 8.5	$ 8.2
Discount rate	3.70%	4.60%	3.90%
United States
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligations (ABO)	$ 0.6	$ 0.7
Canada
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligations (ABO)	$ 6.4	$ 7.8

Employee Benefit Plans - Key Actuarial Assumptions Used to Determine Net Benefit Obligation (Detail) - OPEB	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Initial rate	7.00%	7.00%
Ultimate rate	5.00%	5.00%
Year of ultimate rate achievement	2021	2021
Weighted average discount rate	3.90%	3.70%

Other Noncurrent Liabilities - Components of Other Noncurrent Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Other Liabilities Noncurrent [Abstract]
Reserve for uncertain tax positions	$ 11.8	$ 13.1
Employee benefits	7.5	8.1
Interest rate swap contract	0.2
Insurance claims and expenses	0.2	0.3
Other	4.7	5.3
Total	$ 24.4	$ 26.8

Stockholders' Equity - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stockholders Equity Note [Abstract]
Existing long-term incentive plan				200,000
Shares available for future award under proposed long term incentive plan	177,000
Shares awarded under proposed long term incentive plan	8,000	8,000	7,000
Repurchase of authorized shares				2,000,000
Shares repurchased under stock repurchase program			49,000
Shares repurchased under stock repurchase program, value			$ 0.7
Shares available for repurchase under the plan	1,951,000

Stockholder's Equity - Schedule of Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income Loss [Line Items]
Currency translation, Balance at beginning of year	$ (159.8)	$ (56.8)	$ (63.5)
Currency translation, Other comprehensive income (loss)	(92.2)	(103.0)	6.7
Currency translation, Balance at end of year	(252.0)	(159.8)	(56.8)
Marketable securities, Balance at beginning of year	(2.9)	10.8	4.2
Other comprehensive income (loss):
Unrealized gains (losses) arising during the year	(6.5)	(13.7)	5.3
Less reclassification adjustment for amounts included in realized loss	8.8		1.3
Marketable securities, Balance at end of year	(0.6)	(2.9)	10.8
Other comprehensive loss:
Unrealized losses arising during the year	(2.9)
Less reclassification adjustment for amounts included in interest expense	0.6
Balance at end of year	(2.3)
Balance at beginning of year	(335.8)	(152.0)	(197.1)
Other comprehensive income (loss)	(76.2)	(183.8)	45.1
Balance at end of year	(412.0)	(335.8)	(152.0)
Defined Benefit Pension Plans
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of year	(175.4)	(109.4)	(137.3)
Other comprehensive income (loss):
Amortization of prior service cost (credit) and net losses included in net periodic pension cost	10.0	7.2	10.0
Net actuarial gain (loss) arising during year	6.2	(73.2)	12.6
Plan curtailment			5.3
Balance at end of year	(159.2)	(175.4)	(109.4)
OPEB
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of year	2.3	3.4	(0.5)
Other comprehensive income (loss):
Amortization of prior service cost (credit) and net losses included in net periodic pension cost	(0.4)	(0.5)	(0.6)
Net actuarial gain (loss) arising during year	0.2	(0.6)	1.2
Plan amendments			3.3
Balance at end of year	$ 2.1	$ 2.3	$ 3.4

Related Party Transactions - Summary of Current Receivables from and Payables to Affiliates (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Current receivable from affiliate	$ 2.5	$ 18.0
Current payables to affiliates	19.5	19.9
Louisiana Pigment Company, L.P. \| Trade Items
Related Party Transaction [Line Items]
Current receivable from affiliate		13.0
Current payables to affiliates	19.4	19.9
Valhi \| Income Tax Receivable
Related Party Transaction [Line Items]
Current receivable from affiliate		3.5
Valhi \| Income Tax Payable
Related Party Transaction [Line Items]
Current payables to affiliates	0.1
Other Affiliates \| Other Receivable
Related Party Transaction [Line Items]
Current receivable from affiliate	$ 2.5	$ 1.5

Related Party Transactions - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended
	Feb. 28, 2013	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Nov. 30, 2010
Contran
Related Party Transaction [Line Items]
Expense transaction with affiliate			$ 144,000	$ 116,000	$ 88,000
Contran \| Intercorporate Services Agreement
Related Party Transaction [Line Items]
Intercorporate services fees			13,400,000	12,300,000	12,900,000
Contran \| Scenario, Forecast \| Intercorporate Services Agreement
Related Party Transaction [Line Items]
Intercorporate services fees		$ 15,200,000
LPC \| Titanium Dioxide Pigments
Related Party Transaction [Line Items]
Purchase of TiO2			176,500,000	193,100,000	224,500,000
LPC \| Titanium Dioxide Feedstock
Related Party Transaction [Line Items]
Sales of feedstock ore to LPC			80,600,000	98,400,000	141,100,000
Tall Pines Insurance Inc and EWIRE Inc \| Insurance Premiums
Related Party Transaction [Line Items]
Expense transaction with affiliate			10,300,000	10,700,000	11,300,000
Unsecured Revolving Demand Promissory Note \| Valhi Inc
Related Party Transaction [Line Items]
Amended unsecured revolving credit loan			$ 0	0
Maximum lending capacity						$ 100,000,000
Percentage of Interest over Prime rate						1.00%
Interest payable quarterly for the loan			prime plus 1.00%
Unsecured Revolving Demand Promissory Note \| Valhi Inc \| Interest Income
Related Party Transaction [Line Items]
Interest income on loan			$ 500,000	500,000	500,000
Promissory note \| Contran
Related Party Transaction [Line Items]
Borrowed Funds	$ 190,000,000				190,000,000
Repayments of Lines of Credit					20,000,000
Interest expense on loan				$ 1,600,000	$ 11,700,000

Commitment and Contingencies - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) Customer	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Commitment And Contingencies [Line Items]
Settlement agreement amount			$ 35.0
Operating expenses related to settlement			$ 35.0
TiO2 Customers \| Customer	4,000
Net Sales of TiO2	34.00%	35.00%	34.00%
Current Tio2 production capacity in Leverkusen facility	33.00%
Long term master agreements expiring	Dec. 31, 2017
Net rent expense	$ 14.0	$ 16.0	$ 15.0
Aggregate future minimum rental commitments	55.6
Leverkusen Facility Lease
Commitment And Contingencies [Line Items]
Aggregate future minimum rental commitments	$ 14.0
Germany Facility
Commitment And Contingencies [Line Items]
Lease expiration year	2050
Feedstock
Commitment And Contingencies [Line Items]
Minimum purchase commitments	$ 865.0
Various Raw Materials and Services
Commitment And Contingencies [Line Items]
Minimum purchase commitments	$ 147.0
Net Sales \| Product Concentration Risk \| Titanium Dioxide Pigments
Commitment And Contingencies [Line Items]
Approximate percent sales by volume	90.00%	90.00%	90.00%
Net Sales \| Customer Concentration Risk \| Behr Process Corporation
Commitment And Contingencies [Line Items]
Approximate percent sales by volume	10.00%	10.00%	10.00%

Commitments and Contingencies - Summary of Approximate Percentage of TiO2 Sales by Volume (Detail) - Net Sales - Geographic Concentration Risk	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
European
Schedule Of Net Sales By Geographical Segment [Line Items]
Approximate percent sales by volume	52.00%	50.00%	49.00%
North America
Schedule Of Net Sales By Geographical Segment [Line Items]
Approximate percent sales by volume	29.00%	33.00%	33.00%

Commitments and Contingencies - Summary of Future Minimum Payments Under Noncancellable Operating Leases (Detail) $ in Millions	Dec. 31, 2015 USD ($)
Commitments And Contingencies Disclosure [Abstract]
2016	$ 11.0
2017	8.0
2018	5.1
2019	4.3
2020	3.5
2021 and thereafter	23.7
Total	$ 55.6

Financial Instruments - Valuation of Financial Instruments Recorded on Fair Value Basis (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Noncurrent marketable securities	$ 2.4	$ 11.1
Fair Value Measurements Recurring
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Currency forward contracts	(1.2)	(4.2)
Noncurrent marketable securities	2.4	11.1
Interest rate swap contract	(3.5)
Level 1 \| Fair Value Measurements Recurring
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Currency forward contracts	(1.2)	(4.2)
Noncurrent marketable securities	2.4	$ 11.1
Level 2 \| Fair Value Measurements Recurring
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Interest rate swap contract	$ (3.5)

- Definition

+ References + Details

Financial Instruments - Additional Information (Detail)	12 Months Ended
Financial Instruments - Additional Information (Detail)	Dec. 31, 2015 USD ($) $ / $	Dec. 31, 2014 USD ($)
Derivative [Line Items]
Currency transaction loss	$ 1,200,000	$ 4,200,000
Pretax loss amount recognized in other comprehensive income related to interest rate swap contract	4,400,000
Reclassified from accumulated other comprehensive income in to earnings	900,000
Pre-tax amount of accumulated other comprehensive income expected to be reclassified to earnings during next twelve months	3,500,000
Fair value of interest rate swap contract	3,500,000
Term Loan
Derivative [Line Items]
Debt instrument base principal amount	1,000
Debt instrument estimated market price per principal amount	900
Accounts Payable and Accrued Liabilities
Derivative [Line Items]
Fair value of interest rate swap contract	3,300,000
Other Noncurrent Liabilities
Derivative [Line Items]
Fair value of interest rate swap contract	200,000
Currency Forward Contracts
Derivative [Line Items]
Estimated fair value of currency forward contracts net liability	1,200,000	4,200,000
Estimated fair value of currency forward contracts included accounts payable and accrued liabilities		$ 4,200,000
Interest Rate Swap
Derivative [Line Items]
Gain loss recognized in earnings on hedge ineffectiveness	0
Interest Rate Swap \| London Interbank Offered Rate (LIBOR)
Derivative [Line Items]
Derivative instrument, notional amount	$ 344,750,000
Derivative, type of instrument	pay-fixed/receive-variable interest rate swap
Interest rate swap, type of interest rate	fixed
Interest rate swap, fixed rate	2.016%
Interest rate swap, floor rate	1.00%
Interest rate swap, effective date	Sep. 30, 2015
Interest rate swap, notional amount decline each quarter	$ 875,000
Interest rate swap, notional amount decline commencing date	Dec. 31, 2015
Interest rate swap, final maturity date	Feb. 29, 2020
Wells Fargo Bank, N.A. \| January through July 2016
Derivative [Line Items]
Derivative instrument, notional amount	$ 17,900,000
Foreign currency contracts maturing value	$ 2,600,000
U S D \| Wells Fargo Bank, N.A. \| January through July 2016
Derivative [Line Items]
Forward currency contracts, exchange rate \| $ / $	1.29

Financial Instruments - Financial Instruments not Carried at Fair Value but which Require Fair Value Disclosure (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Fair Value Disclosures [Abstract]
Cash, cash equivalents and restricted cash, Carrying amount	$ 94.3	$ 169.9
Variable rate term loan, Carrying amount	338.0	340.9
Common stockholders' equity, Carrying amount	461.9	781.1	$ 935.1	$ 1,062.1
Cash, cash equivalents and restricted cash, Fair value	94.3	169.9
Variable rate term loan, Fair value	309.5	341.5
Common stockholders' equity, Fair value	$ 653.6	$ 1,508.7

Restructuring Costs - Additional Information (Detail) $ in Millions	3 Months Ended			9 Months Ended	12 Months Ended
	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2015 Employee	Dec. 31, 2015 USD ($)
Restructuring Cost And Reserve [Line Items]
Workforce reduction, number of individuals \| Employee				160
Workforce reduction, recognized aggregate charge	$ 0.2	$ 0.4	$ 21.1		$ 21.7
Accrued severance costs expected to be paid					2018-09
Cost Of Sales
Restructuring Cost And Reserve [Line Items]
Workforce reduction, recognized aggregate charge					$ 10.8
Selling, General and Administrative Expense
Restructuring Cost And Reserve [Line Items]
Workforce reduction, recognized aggregate charge					$ 10.9

Restructuring Costs - Summary of Activity in Accrued Workforce Reduction (Detail) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2015
Restructuring Cost And Reserve [Line Items]
Workforce reduction costs accrued	$ 0.2	$ 0.4	$ 21.1	$ 21.7
Amounts recognized in the balance sheet:
Current liability					$ 5.3
Workforce Reduction
Restructuring Cost And Reserve [Line Items]
Workforce reduction costs accrued				21.7
Workforce reduction costs paid				(15.9)
Currency translation adjustments, net				(0.2)
Accrued workforce reduction costs at December 31, 2015	5.6			5.6
Amounts recognized in the balance sheet:
Current liability					5.3
Noncurrent liability					0.3
Restructuring Reserve	$ 5.6			$ 5.6	$ 5.6

Recent Accounting Pronouncements - Additional Information (Detail) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
New Accounting Pronouncement Early Adoption [Line Items]
Deferred income tax asset, current		$ 0
Deferred income tax liability, current		0
Deferred income tax asset, noncurrent	$ 14,000,000	167,300,000
Deferred income tax liability, noncurrent	$ 8,100,000	6,100,000
Scenario, Previously Recognized
New Accounting Pronouncement Early Adoption [Line Items]
Deferred income tax asset, current		6,300,000
Deferred income tax liability, current		3,700,000
Deferred income tax asset, noncurrent		165,400,000
Deferred income tax liability, noncurrent		6,800,000
2014 Term Loan, Amended 2015
New Accounting Pronouncement Early Adoption [Line Items]
Deferred financing costs deducted from carrying value		$ 5,000,000

Quarterly Results of Operations (Unaudited) - Quarterly Results of Operation (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Selected Quarterly Financial Information [Abstract]
Net sales	$ 287.0	$ 336.5	$ 360.2	$ 365.1	$ 373.5	$ 414.8	$ 443.5	$ 420.1	$ 1,348.8	$ 1,651.9	$ 1,732.4
Gross margin	25.2	43.2	46.5	77.4	79.7	95.7	93.8	80.5	192.3	349.7	112.2
Net income (loss)	$ (20.4)	$ (11.8)	$ (159.8)	$ 18.4	$ 19.9	$ 31.9	$ 33.1	$ 14.3	$ (173.6)	$ 99.2	$ (102.0)
Basic and diluted income (loss) per share	$ (0.18)	$ (0.10)	$ (1.38)	$ 0.16	$ 0.17	$ 0.28	$ 0.29	$ 0.12	$ (1.50)	$ 0.86	$ (0.88)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Quarterly Results of Operations - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended				12 Months Ended
	Jun. 30, 2015	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2015
Schedule Of Quarterly Financial Information [Line Items]
Non-cash income tax benefit					$ 5.7
Workforce reduction, recognized aggregate charge		$ 0.2	$ 0.4	$ 21.1		$ 21.7
Pre-tax impairment charge to write down			12.0
Valuation allowance						$ 159.0
Germany and Belgian
Schedule Of Quarterly Financial Information [Line Items]
Valuation allowance	$ 150.3	$ 6.4	$ 2.3	$ 150.3

Employee Benefit Plans - Composition of Pension Plan Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	$ 372.0	$ 414.8	$ 431.4
United States Pension Plans of US Entity, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	13.9	15.5	$ 15.8
Defined Benefit Pension Plans
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	385.9	430.3
Defined Benefit Pension Plans \| Other Defined Benefit Pension Plans
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	11.2	11.4
Level 1 \| Defined Benefit Pension Plans
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	135.8	160.7
Level 1 \| Defined Benefit Pension Plans \| Other Defined Benefit Pension Plans
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	3.5	3.6
Level 2 \| Defined Benefit Pension Plans
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	13.9	15.5
Level 3 \| Defined Benefit Pension Plans
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	236.2	254.1
Level 3 \| Defined Benefit Pension Plans \| Other Defined Benefit Pension Plans
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	7.7	7.8
Germany \| Defined Benefit Pension Plans \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	223.1	240.7
Germany \| Level 3 \| Defined Benefit Pension Plans \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	223.1	240.7
Canada \| Defined Benefit Pension Plans \| Local Currency Equities Member \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	9.6	12.4
Canada \| Defined Benefit Pension Plans \| Non Local Currency Equities \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	23.3	34.4
Canada \| Defined Benefit Pension Plans \| Local Currency Fixed Income \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	50.6	50.3
Canada \| Defined Benefit Pension Plans \| Global Mutual Fund \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	6.8	10.1
Canada \| Defined Benefit Pension Plans \| Cash And Other \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	0.5	0.6
Canada \| Level 1 \| Defined Benefit Pension Plans \| Local Currency Equities Member \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	9.6	12.4
Canada \| Level 1 \| Defined Benefit Pension Plans \| Non Local Currency Equities \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	23.3	34.4
Canada \| Level 1 \| Defined Benefit Pension Plans \| Local Currency Fixed Income \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	50.6	50.3
Canada \| Level 1 \| Defined Benefit Pension Plans \| Global Mutual Fund \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	6.8	10.1
Canada \| Level 1 \| Defined Benefit Pension Plans \| Cash And Other \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	0.5	0.6
Norway \| Defined Benefit Pension Plans \| Local Currency Equities Member \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	2.0	1.9
Norway \| Defined Benefit Pension Plans \| Non Local Currency Equities \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	3.6	5.1
Norway \| Defined Benefit Pension Plans \| Local Currency Fixed Income \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	24.5	29.3
Norway \| Defined Benefit Pension Plans \| Cash And Other \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	7.9	10.3
Norway \| Defined Benefit Pension Plans \| Non Local Currency Fixed Income \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	4.7	3.8
Norway \| Defined Benefit Pension Plans \| Real Estate \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	4.2	4.5
Norway \| Level 1 \| Defined Benefit Pension Plans \| Local Currency Equities Member \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	2.0	1.9
Norway \| Level 1 \| Defined Benefit Pension Plans \| Non Local Currency Equities \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	3.6	5.1
Norway \| Level 1 \| Defined Benefit Pension Plans \| Local Currency Fixed Income \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	24.5	29.3
Norway \| Level 1 \| Defined Benefit Pension Plans \| Cash And Other \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	6.7	9.2
Norway \| Level 1 \| Defined Benefit Pension Plans \| Non Local Currency Fixed Income \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	4.7	3.8
Norway \| Level 3 \| Defined Benefit Pension Plans \| Cash And Other \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	1.2	1.1
Norway \| Level 3 \| Defined Benefit Pension Plans \| Real Estate \| Foreign Pension Plans, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	4.2	4.5
United States \| Defined Benefit Pension Plans \| CMRT \| United States Pension Plans of US Entity, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	13.9	15.5
United States \| Level 2 \| Defined Benefit Pension Plans \| CMRT \| United States Pension Plans of US Entity, Defined Benefit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Pension plan assets	$ 13.9	$ 15.5