0001558370-23-007841 | 10-Q | XBRL Viewer

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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 177.8	$ 327.8
Restricted cash	1.6	2.0
Accounts and other receivables, net	302.0	255.1
Inventories, net	612.7	608.7
Prepaid expenses and other	41.0	48.6
Total current assets	1,135.1	1,242.2
Other assets:
Investment in TiO2 manufacturing joint venture	113.6	112.9
Restricted cash	4.8	4.8
Marketable securities	2.5	3.2
Operating lease right-of-use assets	21.3	21.5
Deferred income taxes	50.9	52.0
Other	13.4	13.3
Total other assets	206.5	207.7
Property and equipment:
Land	42.2	41.9
Buildings	220.2	214.7
Equipment	1,109.2	1,093.2
Mining properties	113.2	119.6
Construction in progress	83.9	76.5
Gross property and equipment	1,568.7	1,545.9
Less accumulated depreciation and amortization	1,078.8	1,061.4
Net property and equipment	489.9	484.5
Total assets	1,831.5	1,934.4
Current liabilities:
Current maturities of long-term debt	0.9	1.1
Accounts payable and accrued liabilities	251.8	312.3
Income taxes	7.0	13.3
Total current liabilities	259.7	326.7
Noncurrent liabilities:
Long-term debt	433.5	424.1
Accrued pension costs	129.3	128.6
Payable to affiliate - income taxes	33.5	33.5
Operating lease liabilities	17.2	17.4
Deferred income taxes	25.4	26.4
Other	20.8	20.5
Total noncurrent liabilities	659.7	650.5
Stockholders' equity:
Common stock, $.01 par value; 240.0 shares authorized; 115.5 shares issued and outstanding	1.2	1.2
Additional paid-in capital	1,393.0	1,394.3
Retained deficit	(142.5)	(105.4)
Accumulated other comprehensive loss	(338.1)	(331.5)
Treasury stock, at cost	(1.5)	(1.4)
Total stockholders' equity	912.1	957.2
Total liabilities and stockholders' equity	1,831.5	1,934.4
Commitments and contingencies (Notes 12 and 15)

Accounts Payable and Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2023

Payables And Accruals [Abstract]

Components of Accounts Payable and Accrued Liabilities


	December 31,		March 31,
	2022		2023

	(In millions)
Accounts payable	$	177.2	$	144.6
Accrued sales discounts and rebates		25.6		8.3
Employee benefits		22.9		22.8
Payables to affiliates:
LPC		17.1		19.0
Income taxes payable to Valhi		5.8		3.0
Operating lease liabilities		3.8		3.7
Other		59.9		50.4
Total	$	312.3	$	251.8

Inventories, Net - Schedule of Inventories, Net (Detail) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw materials	$ 158.9	$ 145.3
Work in process	36.7	32.0
Finished products	333.7	349.9
Supplies	83.4	81.5
Total	$ 612.7	$ 608.7

Accounts Payable and Accrued Liabilities - Components of Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Accounts Payable And Accrued Liabilities [Line Items]
Accounts payable	$ 144.6	$ 177.2
Accrued sales discounts and rebates	22.8	22.9
Employee benefits	8.3	25.6
Operating lease liabilities	$ 3.7	$ 3.8
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total	Total
Other	$ 50.4	$ 59.9
Total	251.8	312.3
LPC
Accounts Payable And Accrued Liabilities [Line Items]
Current payable to affiliate	19.0	17.1
Valhi \| Income taxes
Accounts Payable And Accrued Liabilities [Line Items]
Current payable to affiliate	$ 3.0	$ 5.8

Long-Term Debt - Revolving Credit Facilities - Additional Information (Detail) - Global Revolver $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Debt Instrument [Line Items]
Repayments of lines of credit	$ 0
Borrowings under credit facility during the period	0
Maximum borrowing capacity	225
Amount available for Borrowing	$ 225

Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2023	Apr. 28, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	1-31763
Entity Registrant Name	KRONOS WORLDWIDE, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	76-0294959
Entity Address, Address Line One	5430 LBJ Freeway
Entity Address, Address Line Two	Suite 1700
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75240-2620
City Area Code	972
Local Phone Number	233-1700
Title of 12(b) Security	Common stock
Trading Symbol	KRO
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		115,057,816
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001257640
Current Fiscal Year End Date	--12-31

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net income	$ (15.2)	$ 57.5
Other comprehensive income (loss), net of tax:
Currency translation	(7.0)	6.6
Total other comprehensive income, net	(6.6)	8.9
Comprehensive income	(21.8)	66.4
Defined benefit pension plans
Other comprehensive income (loss), net of tax:
Defined benefit plans	0.5	2.4
Other postretirement benefit plans
Other comprehensive income (loss), net of tax:
Defined benefit plans	$ (0.1)	$ (0.1)

- Definition

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

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+ Details

- Definition

Amount after tax and reclassification adjustments of other comprehensive income (loss).

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+ Details

Financial Instruments - Financial Instruments not Carried at Fair Value but which Require Fair Value Disclosure (Detail) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Cash, cash equivalents and restricted cash, Carrying amount	$ 184.2	$ 334.6	$ 356.2	$ 412.6
Long-term debt - Fixed rate Senior Notes, Carrying amount	433.5	424.1
Cash, cash equivalents and restricted cash, Fair value	184.2	334.6
Long-term debt - Fixed rate Senior Notes, Fair value	$ 389.4	$ 374.2

Defined contribution and defined benefit retirement plans (Tables)

3 Months Ended

Mar. 31, 2023

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Cost


	Three months ended
	March 31,
	2022		2023

	(In millions)
Net periodic pension cost (income):
Service cost	$	3.0	$	1.6
Interest cost		2.9		5.1
Expected return on plan assets		(3.1)		(4.8)
Recognized actuarial losses		3.4		.6
Total	$	6.2	$	2.5

Stockholders' Equity - Schedule of Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ 957.2	$ 870.2
Ending Balance	912.1	913.6
Currency Translation
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(269.2)	(240.4)
Other comprehensive income (loss)	(7.0)	6.6
Ending Balance	(276.2)	(233.8)
Accumulated Defined Benefit Plans Adjustment \| Defined benefit pension plans
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(63.1)	(163.3)
Other comprehensive income (loss)	0.5	2.4
Ending Balance	(62.6)	(160.9)
Accumulated Defined Benefit Plans Adjustment \| OPEB Plans
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	0.8	(0.4)
Other comprehensive income (loss)	(0.1)	(0.1)
Ending Balance	0.7	(0.5)
Total Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(331.5)	(404.1)
Other comprehensive income (loss)	(6.6)	8.9
Ending Balance	$ (338.1)	$ (395.2)

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(31))
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

Long-Term Debt - Components of Long-Term Debt (Detail) € in Millions, $ in Millions	Mar. 31, 2023 USD ($)	Mar. 31, 2023 EUR (€)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Kronos International, Inc. 3.75% Senior Notes	$ 433.5		$ 424.1
Other	0.9		1.1
Total debt	434.4		425.2
Less current maturities	0.9		1.1
Total long-term debt	433.5		424.1
Kronos International, Inc \| 3.75% Senior Notes
Debt Instrument [Line Items]
Kronos International, Inc. 3.75% Senior Notes	$ 433.5	€ 400	$ 424.1

- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References + Details

Defined contribution and defined benefit retirement plans

3 Months Ended

Mar. 31, 2023

Compensation And Retirement Disclosure [Abstract]

Defined contribution and defined benefit retirement plans

Note 9 - Employee benefit plans:

The components of net periodic defined benefit pension cost are presented in the table below.


	Three months ended
	March 31,
	2022		2023

	(In millions)
Net periodic pension cost (income):
Service cost	$	3.0	$	1.6
Interest cost		2.9		5.1
Expected return on plan assets		(3.1)		(4.8)
Recognized actuarial losses		3.4		.6
Total	$	6.2	$	2.5

We expect our 2023 contributions for our pension plans to be approximately $17 million.

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section S99
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=21916913&loc=d3e273930-122802

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI https://asc.fasb.org/topic&trid=2235017

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 60
-Section 50
-Paragraph 3
-Subparagraph (c)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(03)
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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iii)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (l)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (r)(2)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

+ Details

Inventories, Net (Tables)

3 Months Ended

Mar. 31, 2023

Inventory Disclosure [Abstract]

Schedule of Inventories, Net


	December 31,		March 31,
	2022		2023

	(In millions)
Raw materials	$	145.3	$	158.9
Work in process		32.0		36.7
Finished products		349.9		333.7
Supplies		81.5		83.4
Total	$	608.7	$	612.7

Accounts and Other Receivables, Net (Tables)

3 Months Ended

Mar. 31, 2023

Receivables [Abstract]

Accounts and Other Receivables, Net


	December 31,		March 31,
	2022		2023

	(In millions)
Trade receivables	$	220.3	$	261.2
Recoverable VAT and other receivables		28.5		28.7
Receivables from affiliates:
Louisiana Pigment Company, L.P. (LPC)		-		10.4
Other		2.7		1.0
Refundable income taxes		7.1		4.2
Allowance for doubtful accounts		(3.5)		(3.5)
Total	$	255.1	$	302.0

Long-Term Debt - Senior Notes - Additional Information (Detail) € in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2023 EUR (€)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Aggregate principal amount outstanding	$ 433.5		$ 424.1
Kronos International, Inc \| 3.75% Senior Secured Notes due September 15, 2025
Debt Instrument [Line Items]
Debt instrument interest rate	3.75%	3.75%
Debt instrument maturity date	Sep. 15, 2025
Aggregate principal amount outstanding	$ 433.5	€ 400	$ 424.1
Unamortized debt issuance costs	$ 2.2

Income Taxes

3 Months Ended

Mar. 31, 2023

Income Tax Disclosure [Abstract]

Income Taxes

Note 10 - Income taxes:


	Three months ended
	March 31,
	2022		2023

	(In millions)
Expected tax expense (benefit), at U.S. federal statutory income tax rate of 21%	$	15.9	$	(4.6)
Non-U.S. tax rates		2.0		(.2)
Incremental net tax benefit on earnings and losses of U.S. and non-U.S. companies		(.4)		-
Valuation allowance, net		(.1)		.2
Global intangible low-tax income, net		.9		(.5)
Adjustment to the reserve for uncertain tax positions, net		(.8)		(1.2)
Adjustment of prior year taxes, net		-		(.4)
Other, net		.8		(.2)
Income tax expense (benefit)	$	18.3	$	(6.9)

Comprehensive provision for income taxes allocable to:
Net income (loss)	$	18.3	$	(6.9)
Other comprehensive income - pension plans		1.1		.1
Total	$	19.4	$	(6.8)

The amount shown in the preceding 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. The amount shown on such table for incremental net tax benefit on earnings and losses of U.S. and non-U.S. companies includes, as applicable, (i) deferred income taxes (or deferred income tax benefits) associated with the current-year earnings of all of our non-U.S. subsidiaries and (ii) 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.

During the first quarter of 2023, we recognized a non-cash deferred income tax benefit of $1.0 million relating to a decrease in our unrecognized tax benefits due to the expiration of certain statutes of limitations. We recognized a similar non-cash deferred income tax benefit of $1.1 million in the first quarter of 2022, also due to the expiration of certain statutes of limitations.

Tax authorities may in the future examine certain of our U.S. and non-U.S. tax returns and may propose tax deficiencies, including penalties and interest. 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 currently estimate that our unrecognized tax benefits will not change materially during the next twelve months.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 21
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 17
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.5.Q1)
-URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 14
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-URI https://asc.fasb.org/topic&trid=2144680

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Other Noncurrent Liabilities

3 Months Ended

Mar. 31, 2023

Other Liabilities Disclosure [Abstract]

Other Noncurrent Liabilities

Note 7 - Other noncurrent liabilities:


	December 31,		March 31,
	2022		2023

	(In millions)
Accrued postretirement benefits	$	5.9	$	5.9
Employee benefits		4.8		4.9
Other		9.8		10.0
Total	$	20.5	$	20.8

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income	$ (15.2)	$ 57.5
Depreciation	12.9	12.9
Amortization of operating lease right-of-use assets	1.1	1.4
Deferred income taxes	1.1	1.7
Benefit plan expense greater than cash funding	(2.2)	1.6
Marketable equity securities	0.7	(0.1)
Distributions from (contributions to) TiO2 manufacturing joint venture, net	(0.7)	(3.8)
Other, net	0.4	1.6
Change in assets and liabilities:
Accounts and other receivables, net	(39.0)	(41.2)
Inventories, net	0.5	(32.8)
Prepaid expenses	8.1	(8.9)
Accounts payable and accrued liabilities	(60.0)	(25.2)
Income taxes	(2.6)	6.4
Accounts with affiliates	(15.1)	9.8
Other, net	0.2	0.5
Net cash provided by operating activities	(109.8)	(18.6)
Cash flows from investing activities:
Capital expenditures	(16.4)	(14.2)
Cash flows from financing activities:
Payments on long-term debt	(0.2)	(0.2)
Dividends paid	(21.9)	(21.9)
Treasury stock acquired	(1.4)	(1.1)
Net cash used in financing activities	(23.5)	(23.2)
Cash, cash equivalents and restricted cash - net change from:
Operating, investing and financing activities	(149.7)	(56.0)
Effect of currency exchange rate changes on cash	(0.7)	(0.4)
Balance at beginning of year	334.6	412.6
Balance at end of year	184.2	356.2
Cash paid for:
Interest, net of amount capitalized	7.9	8.3
Income taxes	(2.6)	5.5
Accrual for capital expenditures	$ 6.4	$ 3.8

Other Noncurrent Liabilities (Tables)

3 Months Ended

Mar. 31, 2023

Other Liabilities Disclosure [Abstract]

Components of Other Noncurrent Liabilities


	December 31,		March 31,
	2022		2023

	(In millions)
Accrued postretirement benefits	$	5.9	$	5.9
Employee benefits		4.8		4.9
Other		9.8		10.0
Total	$	20.5	$	20.8

Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

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

December 31, 2022

March 31, 2023

Carrying

Fair

Carrying

Fair

amount

value

amount

value

(In millions)

Cash, cash equivalents and restricted cash

334.6

184.2

Long-term debt - Fixed rate Senior Notes

424.1

374.2

433.5

389.4

Accounts and Other Receivables, Net - Accounts and Other Receivables, Net (Detail) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Accounts Notes And Loans Receivable [Line Items]
Allowance for doubtful accounts	$ (3.5)	$ (3.5)
Total	302.0	255.1
Trade receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts and other receivables	261.2	220.3
Recoverable VAT and other receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts and other receivables	28.7	28.5
Other
Accounts Notes And Loans Receivable [Line Items]
Receivables from affiliates	1.0	2.7
Refundable income taxes
Accounts Notes And Loans Receivable [Line Items]
Refundable income taxes	4.2	$ 7.1
Louisiana Pigment Company, L.P. ("LPC'')
Accounts Notes And Loans Receivable [Line Items]
Receivables from affiliates	$ 10.4

Inventories, Net

3 Months Ended

Mar. 31, 2023

Inventory Disclosure [Abstract]

Inventories, Net

Note 3 - Inventories, net:


	December 31,		March 31,
	2022		2023

	(In millions)
Raw materials	$	145.3	$	158.9
Work in process		32.0		36.7
Finished products		349.9		333.7
Supplies		81.5		83.4
Total	$	608.7	$	612.7

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Income Tax [Line Items]
Deferred Income Tax Expense Benefit Non Cash	$ (1.0)	$ 1.1
Noncurrent payable to affiliate	33.5		$ 33.5
Due To Affiliate Noncurrent	$ 33.5		$ 33.5

Other operating income (expense), net (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Other operating income (expense), net:
Gain related to business interruption claim	$ 1.7

Other Noncurrent Liabilities - Components of Other Noncurrent Liabilities (Detail) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Other Liabilities Disclosure [Abstract]
Accrued postretirement benefits	$ 5.9	$ 5.9
Employee benefits	4.9	4.8
Other	10.0	9.8
Total	$ 20.8	$ 20.5

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Common stock	Additional paid-in capital	Retained deficit	Accumulated other comprehensive loss	Treasury stock	Total
Beginning Balance at Dec. 31, 2021	$ 1.2	$ 1,395.4	$ (122.1)	$ (404.1)	$ (0.2)	$ 870.2
Net income			57.5			57.5
Other comprehensive income, net of tax				8.9		8.9
Dividends paid			(21.9)			(21.9)
Treasury stock acquired					(1.1)	(1.1)
Treasury stock retired		(0.2)			0.2
Ending Balance at Mar. 31, 2022	1.2	1,395.2	(86.5)	(395.2)	(1.1)	913.6
Beginning Balance at Dec. 31, 2022	1.2	1,394.3	(105.4)	(331.5)	(1.4)	957.2
Net income			(15.2)			(15.2)
Other comprehensive income, net of tax				(6.6)		(6.6)
Dividends paid			(21.9)			(21.9)
Treasury stock acquired					(1.4)	(1.4)
Treasury stock retired		(1.3)			1.3
Ending Balance at Mar. 31, 2023	$ 1.2	$ 1,393.0	$ (142.5)	$ (338.1)	$ (1.5)	$ 912.1

- Definition

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

+ References

+ Details

- Definition

Amount after tax and reclassification adjustments of other comprehensive income (loss).

Other operating income (expense), net

3 Months Ended

Mar. 31, 2023

Other operating income (expense), net:

Other operating income (expense), net:

Note 14 - Other operating income (expense), net:

On August 24, 2020, LPC temporarily halted production due to Hurricane Laura. Although storm damage to core processing facilities was not extensive, a variety of factors, including loss of utilities and limited access and availability of employees and raw materials, prevented the resumption of operations until September 25, 2020. The majority of our losses from property damage and our share of LPC’s lost production and other costs resulting from the disruption of operations, were covered by insurance. We recognized a gain of $1.7 million related to our business interruption claim in the first quarter of 2023, which is included in other operating expense, net on our Condensed Consolidated Statement of Operations.

Revenue Recognition

3 Months Ended

Mar. 31, 2023

Revenue From Contract With Customer [Abstract]

Revenue Recognition

Note 8 - Revenue recognition:

The following table disaggregates our net sales by place of manufacture (point of origin) and to the location of the customer (point of destination), which are the categories that depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors.


	Three months ended
	March 31,
	2022		2023

	(In millions)
Net sales - point of origin:
United States	$	326.4	$	255.8
Germany		276.5		186.0
Canada		96.4		90.9
Belgium		92.8		68.8
Norway		78.4		71.9
Eliminations		(307.6)		(247.1)
Total	$	562.9	$	426.3

Net sales - point of destination:
Europe	$	269.5	$	201.1
North America		179.9		148.6
Other		113.5		76.6
Total	$	562.9	$	426.3

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI https://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130551-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130556-203045

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 9
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130550-203045

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (e)
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+ Details

Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2023

Investments Debt And Equity Securities [Abstract]

Classification of Marketable Securities


	Fair value
	measurement	Market		Cost		Unrealized
Marketable security	level	value		basis		loss

		(In millions)
December 31, 2022:
Valhi common stock	1	$	3.2	$	3.2	$	-

March 31, 2023:
Valhi common stock	1	$	2.5	$	3.2	$	(.7)

Income Taxes - Components of Income Taxes and Comprehensive Provision for Income Taxes Allocation (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income before income taxes	$ (22.1)	$ 75.8
Expected tax expense, at U.S. federal statutory income tax rate of 21%	(4.6)	15.9
Non-U.S. tax rates	(0.2)	2.0
Incremental net tax benefit on earnings and losses of U.S. and non-U.S. companies		(0.4)
Valuation allowance, net	0.2	(0.1)
Global intangible low-tax income, net	(0.5)	0.9
Assessment (refund) of prior tax payments, net	(0.4)
Adjustment to the reserve for uncertain tax positions, net	(1.2)	(0.8)
Other, net	(0.2)	0.8
Income tax expense	(6.9)	18.3
Current payable
Income tax expense	(6.9)	18.3
Comprehensive provision for income taxes allocable to:
Net income	(6.9)	18.3
Other comprehensive income (loss):
Benefit plans	0.1	1.1
Total	$ (6.8)	$ 19.4

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement Of Stockholders Equity [Abstract]
Cash dividends per share	$ 0.19	$ 0.19

Income Taxes - Components of Income Taxes and Comprehensive Provision for Income Taxes Allocation (Parenthetical) (Detail)	3 Months Ended
	Mar. 31, 2023
Income Tax Disclosure [Abstract]
U.S. Federal statutory income tax rate	21.00%

Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Organization and Basis of Presentation

Note 1 - Organization and basis of presentation:

Organization - At March 31, 2023, Valhi, Inc. (NYSE: VHI) held approximately 50% of our outstanding common stock and a wholly-owned subsidiary of NL Industries, Inc. (NYSE: NL) held approximately 31% of our common stock. Valhi owned approximately 83% of NL’s outstanding common stock and a wholly-owned subsidiary of Contran Corporation held approximately 92% of Valhi’s outstanding common stock. A majority of Contran’s outstanding voting stock is held directly by Lisa K. Simmons and various family trusts established for the benefit of Ms. Simmons, Thomas C. Connelly (the husband of Ms. Simmons’ late sister) and their children and for which Ms. Simmons or Mr. Connelly, as applicable, serve as trustee (collectively, the “Other Trusts”). With respect to the Other Trusts for which Mr. Connelly serves as trustee, he is required to vote the shares of Contran voting stock held in such trusts in the same manner as Ms. Simmons. Such voting rights of Ms. Simmons last through April 22, 2030 and are personal to Ms. Simmons. The remainder of Contran’s outstanding voting stock is held by another trust (the “Family Trust”), which was established for the benefit of Ms. Simmons and her late sister and their children and for which a third-party financial institution serves as trustee. Consequently, at March 31, 2023, Ms. Simmons and the Family Trust may be deemed to control Contran, and therefore may be deemed to indirectly control the wholly-owned subsidiary of Contran, Valhi, NL and us.

Basis of presentation - The unaudited Condensed Consolidated Financial Statements contained in this Quarterly Report have been prepared on the same basis as the audited Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2022 that we filed with the Securities and Exchange Commission (SEC) on March 8, 2023 (2022 Annual Report). In our opinion, we have made all necessary adjustments (which include only normal recurring adjustments), in order to state fairly, in all material respects, our consolidated financial position, results of operations and cash flows as of the dates and for the periods presented. We have condensed the Consolidated Balance Sheet at December 31, 2022 contained in this Quarterly Report as compared to our audited Consolidated Financial Statements at that date, and we have omitted certain information and footnote disclosures (including those related to the Consolidated Balance Sheet at December 31, 2022) normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (GAAP). Our results of operations for the interim period ended March 31, 2023 may not be indicative of our operating results for the full year. The Condensed Consolidated Financial Statements contained in this Quarterly Report should be read in conjunction with our 2022 Consolidated Financial Statements contained in our 2022 Annual Report.

Unless otherwise indicated, references in this report to “we,” “us” or “our” refer to Kronos Worldwide, Inc. and its subsidiaries (NYSE: KRO) taken as a whole.

Accounts Payable and Accrued Liabilities

3 Months Ended

Mar. 31, 2023

Payables And Accruals [Abstract]

Accounts Payable and Accrued Liabilities

Note 6 - Accounts payable and accrued liabilities:


	December 31,		March 31,
	2022		2023

	(In millions)
Accounts payable	$	177.2	$	144.6
Accrued sales discounts and rebates		25.6		8.3
Employee benefits		22.9		22.8
Payables to affiliates:
LPC		17.1		19.0
Income taxes payable to Valhi		5.8		3.0
Operating lease liabilities		3.8		3.7
Other		59.9		50.4
Total	$	312.3	$	251.8

Stockholders' Equity

3 Months Ended

Mar. 31, 2023

Equity [Abstract]

Stockholders' equity

Note 11 - Stockholders’ equity:

Changes in accumulated other comprehensive loss are presented in the table below. See Note 9 for discussion of our defined benefit pension plans.


	Three months ended
	March 31,
	2022		2023

	(In millions)
Accumulated other comprehensive loss, net of tax:
Currency translation:
Balance at beginning of period	$	(240.4)	$	(269.2)
Other comprehensive income (loss)		6.6		(7.0)
Balance at end of period	$	(233.8)	$	(276.2)

Defined benefit pension plans:
Balance at beginning of period	$	(163.3)	$	(63.1)
Other comprehensive income - amortization of prior service cost and net losses included in net periodic pension cost		2.4		.5
Balance at end of period	$	(160.9)	$	(62.6)

OPEB plans:
Balance at beginning of period	$	(.4)	$	.8
Other comprehensive loss - amortization of prior service credit and net losses included in net periodic OPEB cost		(.1)		(.1)
Balance at end of period	$	(.5)	$	.7

Total accumulated other comprehensive loss:
Balance at beginning of period	$	(404.1)	$	(331.5)
Other comprehensive income (loss)		8.9		(6.6)
Balance at end of period	$	(395.2)	$	(338.1)

Our board of directors has previously 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 use cash on hand or other sources of liquidity to acquire the shares. Repurchased shares are added to our treasury and subsequently cancelled upon approval of the board of directors.

During the first quarter of 2022, we acquired 73,881 shares of our common stock in market transactions for an aggregate purchase price of $1.1 million and we subsequently cancelled these shares in May 2022. During the fourth quarter of 2022, we acquired 143,897 shares of common stock in market transactions for an aggregate purchase price of $1.4 million which were accounted for as treasury stock at December 31, 2022 and we subsequently cancelled 133,897 of these shares in February 2023. During the first quarter of 2023, we acquired 159,796 shares of our common stock in market transactions for an aggregate purchase price of $1.4 million which

are accounted for as treasury stock at March 31, 2023. At March 31, 2023, 1,171,536 shares are available for repurchase under this stock repurchase program.

- 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.

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+ Details

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 426.3	$ 562.9
Cost of sales	395.5	413.6
Gross margin	30.8	149.3
Selling, general and administrative expense	53.2	61.4
Other operating income (expense):
Currency transactions, net	5.4	(1.5)
Other operating expense, net	(1.3)	(3.1)
Income from operations	(18.3)	83.3
Other income (expense):
Interest and dividend income	2.0	0.1
Marketable equity securities	(0.7)	0.1
Other components of net periodic pension and OPEB cost	(0.9)	(3.2)
Interest expense	(4.2)	(4.5)
Income before income taxes	(22.1)	75.8
Income tax expense	(6.9)	18.3
Net income	(15.2)	57.5
Net income - basic	124.4	81.3
Net income - diluted	$ 124.4	$ 81.3
Net income per share - basic	$ (0.13)	$ 0.50
Net income per share - diluted	$ (0.13)	$ 0.50
Weighted average shares outstanding - basic	115.3	115.5
Weighted average shares outstanding - diluted	115.3	115.5

Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2023

Equity [Abstract]

Schedule of Changes in Accumulated Other Comprehensive Loss


	Three months ended
	March 31,
	2022		2023

	(In millions)
Accumulated other comprehensive loss, net of tax:
Currency translation:
Balance at beginning of period	$	(240.4)	$	(269.2)
Other comprehensive income (loss)		6.6		(7.0)
Balance at end of period	$	(233.8)	$	(276.2)

Defined benefit pension plans:
Balance at beginning of period	$	(163.3)	$	(63.1)
Other comprehensive income - amortization of prior service cost and net losses included in net periodic pension cost		2.4		.5
Balance at end of period	$	(160.9)	$	(62.6)

OPEB plans:
Balance at beginning of period	$	(.4)	$	.8
Other comprehensive loss - amortization of prior service credit and net losses included in net periodic OPEB cost		(.1)		(.1)
Balance at end of period	$	(.5)	$	.7

Total accumulated other comprehensive loss:
Balance at beginning of period	$	(404.1)	$	(331.5)
Other comprehensive income (loss)		8.9		(6.6)
Balance at end of period	$	(395.2)	$	(338.1)

Revenue Recognition - Disaggregation of Net Sales by Place of Manufacture and to Location of Customer (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	$ 426.3	$ 562.9
Point of origin
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	426.3	562.9
Point of origin \| Reportable Geographical Components \| United States
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	255.8	326.4
Point of origin \| Reportable Geographical Components \| Germany
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	186.0	276.5
Point of origin \| Reportable Geographical Components \| Canada
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	90.9	96.4
Point of origin \| Reportable Geographical Components \| Belgium
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	68.8	92.8
Point of origin \| Reportable Geographical Components \| Norway
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	71.9	78.4
Point of origin \| Eliminations
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	(247.1)	(307.6)
Point of destination
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	426.3	562.9
Point of destination \| Europe
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	201.1	269.5
Point of destination \| North America
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	148.6	179.9
Point of destination \| Other
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	$ 76.6	$ 113.5

Defined Contribution and Defined Benefit Retirement Plans - Additional Information (Detail) $ in Millions	Mar. 31, 2023 USD ($)
Compensation And Retirement Disclosure [Abstract]
Expected contributions for pension plans in 2021	$ 17

Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Components of Long Term Debt


	December 31,		March 31,
	2022		2023

	(In millions)
Kronos International, Inc. 3.75% Senior Notes	$	424.1	$	433.5
Other		1.1		.9
Total debt		425.2		434.4
Less current maturities		1.1		.9
Total long-term debt	$	424.1	$	433.5

- 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.

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+ Details

Commitments and Contingencies

3 Months Ended

Mar. 31, 2023

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 12 - Commitments and contingencies:

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 litigation matters because it is not reasonably possible we have incurred a loss that would be material to our consolidated financial statements, results of operations or liquidity.

Marketable Securities

3 Months Ended

Mar. 31, 2023

Investments Debt And Equity Securities [Abstract]

Marketable Securities

Note 4 - Marketable securities:

Our marketable securities consist of investments in the publicly-traded shares of our related party, Valhi. 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. Unrealized gains or losses on equity securities are recognized in Other income (expense) - Marketable equity securities on our Condensed Consolidated Statements of Operations.


	Fair value
	measurement	Market		Cost		Unrealized
Marketable security	level	value		basis		loss

		(In millions)
December 31, 2022:
Valhi common stock	1	$	3.2	$	3.2	$	-

March 31, 2023:
Valhi common stock	1	$	2.5	$	3.2	$	(.7)

At December 31, 2022 and March 31, 2023, we held approximately 144,000 shares of Valhi’s common stock. At December 31, 2022 and March 31, 2023, the per share quoted market price of Valhi’s common stock was $22.00 and $17.41, respectively.

The Valhi common stock we own is 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.

Summary of significant accounting policies (Policies)	3 Months Ended
Summary of significant accounting policies (Policies)	Mar. 31, 2023
Accounting Policies [Abstract]
Organization	Organization - At March 31, 2023, Valhi, Inc. (NYSE: VHI) held approximately 50% of our outstanding common stock and a wholly-owned subsidiary of NL Industries, Inc. (NYSE: NL) held approximately 31% of our common stock. Valhi owned approximately 83% of NL’s outstanding common stock and a wholly-owned subsidiary of Contran Corporation held approximately 92% of Valhi’s outstanding common stock. A majority of Contran’s outstanding voting stock is held directly by Lisa K. Simmons and various family trusts established for the benefit of Ms. Simmons, Thomas C. Connelly (the husband of Ms. Simmons’ late sister) and their children and for which Ms. Simmons or Mr. Connelly, as applicable, serve as trustee (collectively, the “Other Trusts”). With respect to the Other Trusts for which Mr. Connelly serves as trustee, he is required to vote the shares of Contran voting stock held in such trusts in the same manner as Ms. Simmons. Such voting rights of Ms. Simmons last through April 22, 2030 and are personal to Ms. Simmons. The remainder of Contran’s outstanding voting stock is held by another trust (the “Family Trust”), which was established for the benefit of Ms. Simmons and her late sister and their children and for which a third-party financial institution serves as trustee. Consequently, at March 31, 2023, Ms. Simmons and the Family Trust may be deemed to control Contran, and therefore may be deemed to indirectly control the wholly-owned subsidiary of Contran, Valhi, NL and us.
Basis of Presentation	Basis of presentation - The unaudited Condensed Consolidated Financial Statements contained in this Quarterly Report have been prepared on the same basis as the audited Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2022 that we filed with the Securities and Exchange Commission (SEC) on March 8, 2023 (2022 Annual Report). In our opinion, we have made all necessary adjustments (which include only normal recurring adjustments), in order to state fairly, in all material respects, our consolidated financial position, results of operations and cash flows as of the dates and for the periods presented. We have condensed the Consolidated Balance Sheet at December 31, 2022 contained in this Quarterly Report as compared to our audited Consolidated Financial Statements at that date, and we have omitted certain information and footnote disclosures (including those related to the Consolidated Balance Sheet at December 31, 2022) normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (GAAP). Our results of operations for the interim period ended March 31, 2023 may not be indicative of our operating results for the full year. The Condensed Consolidated Financial Statements contained in this Quarterly Report should be read in conjunction with our 2022 Consolidated Financial Statements contained in our 2022 Annual Report. Unless otherwise indicated, references in this report to “we,” “us” or “our” refer to Kronos Worldwide, Inc. and its subsidiaries (NYSE: KRO) taken as a whole.
Commitments and Contingencies	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 litigation matters because it is not reasonably possible we have incurred a loss that would be material to our consolidated financial statements, results of operations or liquidity.

Income Taxes (Tables)

3 Months Ended

Mar. 31, 2023

Income Tax Disclosure [Abstract]

Components of Income Taxes and Comprehensive Provision for Income Taxes Allocation


	Three months ended
	March 31,
	2022		2023

	(In millions)
Expected tax expense (benefit), at U.S. federal statutory income tax rate of 21%	$	15.9	$	(4.6)
Non-U.S. tax rates		2.0		(.2)
Incremental net tax benefit on earnings and losses of U.S. and non-U.S. companies		(.4)		-
Valuation allowance, net		(.1)		.2
Global intangible low-tax income, net		.9		(.5)
Adjustment to the reserve for uncertain tax positions, net		(.8)		(1.2)
Adjustment of prior year taxes, net		-		(.4)
Other, net		.8		(.2)
Income tax expense (benefit)	$	18.3	$	(6.9)

Comprehensive provision for income taxes allocable to:
Net income (loss)	$	18.3	$	(6.9)
Other comprehensive income - pension plans		1.1		.1
Total	$	19.4	$	(6.8)

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Organization And Basis Of Presentation [Line Items]
Cost of sales	$ 395.5	$ 413.6
Income taxes paid, net	$ (2.6)	$ 5.5
Valhi Inc \| Parent Company
Organization And Basis Of Presentation [Line Items]
Parent company ownership interest	50.00%
Valhi Inc \| NL Industries Inc.
Organization And Basis Of Presentation [Line Items]
Ownership percentage in company	83.00%
NL Industries Inc. \| Parent Company
Organization And Basis Of Presentation [Line Items]
Parent company ownership interest	31.00%
Contran
Organization And Basis Of Presentation [Line Items]
Controlling interest description	Consequently, at March 31, 2023, Ms. Simmons and the Family Trust may be deemed to control Contran, and therefore may be deemed to indirectly control the wholly-owned subsidiary of Contran, Valhi, NL and us.
Contran \| Valhi Inc
Organization And Basis Of Presentation [Line Items]
Ownership percentage of parent company held by related party	92.00%

Stockholders' Equity - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Feb. 28, 2023	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
Accumulated Other Comprehensive Income Loss [Line Items]
Number of shares authorized for repurchase		2,000,000.0
Aggregate purchase price		$ 1.4		$ 1.1
Shares available for repurchase under the plan		1,171,536
Common stock
Accumulated Other Comprehensive Income Loss [Line Items]
Stock repurchased and acquired in market transactions	133,897	159,796	143,897	73,881
Treasury Stock, Common
Accumulated Other Comprehensive Income Loss [Line Items]
Aggregate purchase price		$ 1.4	$ 1.4	$ 1.1

Marketable Securities - Classification of Marketable Securities (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Marketable Securities [Line Items]
Market value	$ 2.5	$ 3.2
Level 1 \| Common stock \| Valhi
Marketable Securities [Line Items]
Market value	2.5	3.2
Cost basis	3.2	$ 3.2
Unrealized gain (loss)	$ (0.7)

Long-Term debt

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Long-Term Debt

Note 5 - Long-term debt:


	December 31,		March 31,
	2022		2023

	(In millions)
Kronos International, Inc. 3.75% Senior Notes	$	424.1	$	433.5
Other		1.1		.9
Total debt		425.2		434.4
Less current maturities		1.1		.9
Total long-term debt	$	424.1	$	433.5

Senior Secured Notes - At March 31, 2023, the carrying value of our 3.75% Senior Secured Notes due September 15, 2025 (€400 million aggregate principal amount outstanding) is stated net of unamortized debt issuance costs of $2.2 million.

Revolving credit facility - During the first three months of 2023, we had no borrowings or repayments under our $225 million global revolving credit facility and at March 31, 2023, the full $225 million was available for borrowing.

Other - We are in compliance with all of our debt covenants at March 31, 2023.

Marketable Securities - Additional Information (Detail) - Valhi Inc - Common stock - $ / shares	Mar. 31, 2023	Dec. 31, 2022
Marketable Securities [Line Items]
Investments in publicly-traded shares	144,000	144,000
Quoted market price of per share	$ 17.41	$ 22.00

Accounts and Other Receivables, Net

3 Months Ended

Mar. 31, 2023

Receivables [Abstract]

Accounts and Other Receivables, Net

Note 2 - Accounts and other receivables, net:


	December 31,		March 31,
	2022		2023

	(In millions)
Trade receivables	$	220.3	$	261.2
Recoverable VAT and other receivables		28.5		28.7
Receivables from affiliates:
Louisiana Pigment Company, L.P. (LPC)		-		10.4
Other		2.7		1.0
Refundable income taxes		7.1		4.2
Allowance for doubtful accounts		(3.5)		(3.5)
Total	$	255.1	$	302.0

Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2023

Revenue From Contract With Customer [Abstract]

Disaggregation of Net Sales by Place of Manufacture and to Location of Customer


	Three months ended
	March 31,
	2022		2023

	(In millions)
Net sales - point of origin:
United States	$	326.4	$	255.8
Germany		276.5		186.0
Canada		96.4		90.9
Belgium		92.8		68.8
Norway		78.4		71.9
Eliminations		(307.6)		(247.1)
Total	$	562.9	$	426.3

Net sales - point of destination:
Europe	$	269.5	$	201.1
North America		179.9		148.6
Other		113.5		76.6
Total	$	562.9	$	426.3

Defined Contribution and Defined Benefit Retirement Plans - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Compensation And Retirement Disclosure [Abstract]
Service cost	$ 1.6	$ 3.0
Interest cost	5.1	2.9
Expected return on plan assets	(4.8)	(3.1)
Recognized actuarial losses	0.6	3.4
Total	$ 2.5	$ 6.2

Financial Instruments

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Financial Instruments

Note 13 - Financial instruments:

See Note 4 for information on how we determine fair value of our marketable securities.

The following table presents the financial instruments that are not carried at fair value but which require fair value disclosure:

December 31, 2022

March 31, 2023

Carrying

Fair

Carrying

Fair

amount

value

amount

value

(In millions)

Cash, cash equivalents and restricted cash

334.6

184.2

Long-term debt - Fixed rate Senior Notes

424.1

374.2

433.5

389.4

At March 31, 2023, the estimated market price of our Senior Notes was €918 per €1,000 principal amount. The fair value of our Senior Notes was based on quoted market prices; however, these quoted market prices represented Level 2 inputs because the markets in which the Senior Notes trade were not active. Due to their near-term maturities, the carrying amounts of accounts receivable and accounts payable are considered equivalent to fair value. See Notes 2 and 6.

Financial Instruments - Additional Information (Detail) - Senior Notes	Mar. 31, 2023 EUR (€)
Financial Instrument At Fair Value [Line Items]
Debt instrument base principal amount	€ 1,000
Debt instrument estimated market price per 1000 principal amount	€ 918