Kronos Worldwide (KRO) 10-Q 5 Aug 20 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Jul. 31, 2020
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Trading Symbol	KRO
Security Exchange Name	NYSE
Title of 12(b) Security	Common stock
Entity Registrant Name	KRONOS WORLDWIDE, INC.
Entity Central Index Key	0001257640
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		115,542,717
Entity File Number	1-31763
Entity Tax Identification Number	76-0294959
Entity Incorporation, State or Country Code	DE
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
Document Quarterly Report	true
Document Transition Report	false

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 341.4	$ 390.8
Restricted cash	1.5	1.5
Accounts and other receivables, net	320.5	309.4
Inventories, net	498.4	503
Prepaid expenses and other	9.2	15
Total current assets	1,171	1,219.7
Other assets:
Investment in TiO2 manufacturing joint venture	96.5	90.2
Marketable securities	1.6	3.3
Operating lease right-of-use assets	26.7	29
Deferred income taxes	134.3	127.7
Other	5.9	5.3
Total other assets	265	255.5
Property and equipment:
Land	40.2	40.4
Buildings	208.7	211.4
Equipment	1,109.2	1,113.1
Mining properties	107	116.2
Construction in progress	55.8	54.9
Gross property and equipment	1,520.9	1,536
Less accumulated depreciation and amortization	1,053.2	1,045.4
Net property and equipment	467.7	490.6
Total assets	1,903.7	1,965.8
Current liabilities:
Current maturities of long-term debt	1.5	1.5
Accounts payable and accrued liabilities	201.3	259
Income taxes	27.2	10.1
Total current liabilities	230	270.6
Noncurrent liabilities:
Long-term debt	445	444
Accrued pension costs	307.7	307.4
Payable to affiliate - income taxes	50.6	56.6
Operating lease liabilities	20.1	22.2
Deferred income taxes	22.1	20.7
Other	26.9	28.2
Total noncurrent liabilities	872.4	879.1
Stockholders' equity:
Common stock	1.2	1.2
Additional paid-in capital	1,395.3	1,396.2
Retained deficit	(128.5)	(132.5)
Accumulated other comprehensive loss	(466.7)	(448.8)
Total stockholders' equity	801.3	816.1
Total liabilities and stockholders' equity	1,903.7	1,965.8
Commitments and contingencies (Notes 11 and 13)

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Net sales	$ 386	$ 484.5	$ 807	$ 921
Cost of sales	290.2	375	623.1	702.2
Gross margin	95.8	109.5	183.9	218.8
Selling, general and administrative expense	52.7	57.9	106.2	115.6
Other operating income (expense):
Currency transactions, net	(6.1)	(1.1)	6.1	(0.2)
Other operating expense, net	(4)	(4)	(7.3)	(7.5)
Income from operations	33	46.5	76.5	95.5
Other income (expense):
Interest and dividend income	0.2	1.7	1.4	3.8
Insurance settlement gain			1.5
Marketable equity securities	(0.2)	1.2	(1.7)	1.8
Other components of net periodic pension and OPEB cost	(4.7)	(3.8)	(9.4)	(7.6)
Interest expense	(4.6)	(4.7)	(9.2)	(9.5)
Income before income taxes	23.7	40.9	59.1	84
Income tax expense	5.1	11.4	13.5	24.2
Net income	$ 18.6	$ 29.5	$ 45.6	$ 59.8
Net income per basic and diluted share	$ 0.16	$ 0.25	$ 0.39	$ 0.52
Weighted average shares used in the calculation of net income per share	115.5	115.9	115.6	115.9

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net income	$ 18.6	$ 29.5	$ 45.6	$ 59.8
Other comprehensive income (loss), net of tax:
Currency translation	18	7.1	(23.9)	7
Total other comprehensive income (loss), net	21.1	9.3	(17.9)	11.4
Comprehensive income	39.7	38.8	27.7	71.2
Defined Benefit Pension Plans
Other comprehensive income (loss), net of tax:
Defined benefit plans	$ 3.1	$ 2.2	6.1	4.5
OPEB
Other comprehensive income (loss), net of tax:
Defined benefit plans			$ (0.1)	$ (0.1)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (unaudited) - USD ($) $ in Millions	Total	Common stock	Additional paid-in capital	Retained earnings (deficit)	Accumulated other comprehensive income (loss)	Treasury stock
Beginning Balance at Dec. 31, 2018	$ 839.8	$ 1.2	$ 1,399.1	$ (136.2)	$ (424.3)
Net income	59.8			59.8
Other comprehensive income (loss), net of tax	11.4				11.4
Issuance of common stock	0.1		0.1
Dividends paid	(41.7)			(41.7)
Treasury stock acquired	(1.4)					$ (1.4)
Ending Balance at Jun. 30, 2019	868	1.2	1,399.2	(118.1)	(412.9)	(1.4)
Beginning Balance at Mar. 31, 2019	851.3	1.2	1,399.1	(126.8)	(422.2)
Net income	29.5			29.5
Other comprehensive income (loss), net of tax	9.3				9.3
Issuance of common stock	0.1		0.1
Dividends paid	(20.8)			(20.8)
Treasury stock acquired	(1.4)					(1.4)
Ending Balance at Jun. 30, 2019	868	1.2	1,399.2	(118.1)	(412.9)	(1.4)
Beginning Balance at Dec. 31, 2019	816.1	1.2	1,396.2	(132.5)	(448.8)
Net income	45.6			45.6
Other comprehensive income (loss), net of tax	(17.9)				(17.9)
Issuance of common stock	0.1		0.1
Dividends paid	(41.6)			(41.6)
Treasury stock acquired	(1)					(1)
Treasury stock retired			(1)			1
Ending Balance at Jun. 30, 2020	801.3	1.2	1,395.3	(128.5)	(466.7)
Beginning Balance at Mar. 31, 2020	782.3	1.2	1,396.2	(126.3)	(487.8)	(1)
Net income	18.6			18.6
Other comprehensive income (loss), net of tax	21.1				21.1
Issuance of common stock	0.1		0.1
Dividends paid	(20.8)			(20.8)
Treasury stock retired			(1)			$ 1
Ending Balance at Jun. 30, 2020	$ 801.3	$ 1.2	$ 1,395.3	$ (128.5)	$ (466.7)

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (unaudited) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Cash dividends per share	$ 0.18	$ 0.18	$ 0.36	$ 0.36
Retained earnings (deficit)
Cash dividends per share	$ 0.18	$ 0.18	$ 0.36	$ 0.36

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ 45.6	$ 59.8
Depreciation	29.5	22.5
Amortization of operating lease right-of-use assets	3.1	3.4
Deferred income taxes	(8.5)	6.9
Benefit plan expense greater than cash funding	7.6	4.5
Marketable equity securities	1.7	(1.8)
Contributions to TiO2 manufacturing joint venture, net	(6.3)	(4.4)
Other, net	(0.2)	1.2
Change in assets and liabilities:
Accounts and other receivables, net	(11.7)	(90.5)
Inventories, net	(3.8)	11.9
Prepaid expenses	5.6	4.1
Accounts payable and accrued liabilities	(53.4)	23.7
Income taxes	21.3	(7.6)
Accounts with affiliates	(13.5)	(7)
Other, net	1.1	(0.7)
Net cash provided by operating activities	18.1	26
Cash flows from investing activities:
Capital expenditures	(25.4)	(25.5)
Proceeds from insurance settlement	1.5
Net cash used in investing activities	(23.9)	(27.2)
Cash flows from financing activities:
Payments on long-term debt	(0.1)	(0.3)
Dividends paid	(41.6)	(41.7)
Treasury stock acquired	(1)	(1.4)
Net cash used in financing activities	(42.7)	(43.4)
Cash, cash equivalents and restricted cash - net change from:
Operating, investing and financing activities	(48.5)	(44.6)
Currency translation	(0.4)	(0.6)
Balance at beginning of period	392.3	374.7
Balance at end of period	343.4	329.5
Cash paid for:
Interest, net of amount capitalized	8.8	8.9
Income taxes	1.7	29.5
Accrual for capital expenditures	$ 1.5	1.7
Valhi
Cash flows from investing activities:
Loans		(7.1)
Collections		$ 5.4

Organization and Basis of Prese

Organization and Basis of Presentation	6 Months Ended
	Jun. 30, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization and Basis of Presentation	Note 1 - Organization and basis of presentation: Organization - At June 30, 2020, 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 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 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 June 30, 2020 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, 2019 that we filed with the Securities and Exchange Commission (SEC) on March 11, 2020 (2019 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, 2019 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, 2019) 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 periods ended June 30, 2020, 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 2019 Consolidated Financial Statements contained in our 2019 Annual Report. Our results of operations for the second quarter of 2020 were significantly impacted by the COVID-19 pandemic, specifically through reduced demand for many of our products resulting from the rapid contraction of vast areas of the global economy. The extent of the COVID-19 impact on our future operations will depend on the time period and degree to which the COVID-19 pandemic persists in the global economy thereby reducing customer demand for certain of our products, including the timing and extent to which our customers’ operations continue to be impacted, our customers’ perception as to when consumer demand for their products will return to pre-pandemic levels and on any future disruptions in our operations or our suppliers’ operations, all of which are difficult to predict. 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 and Other Receivables,

Accounts and Other Receivables, Net	6 Months Ended
	Jun. 30, 2020
Receivables [Abstract]
Accounts and Other Receivables, Net	Note 2 - Accounts and other receivables, net: December June 30, 2019 2020 (In millions) Trade receivables $ 270.5 $ 287.4 Recoverable VAT and other receivables 25.4 17.0 Receivables from affiliates: Louisiana Pigment Company, L.P. (LPC) 4.7 10.9 Other 2.2 2.5 Refundable income taxes 7.7 4.1 Allowance for doubtful accounts (1.1 ) (1.4 ) Total $ 309.4 $ 320.5

Inventories, Net

Inventories, Net	6 Months Ended
	Jun. 30, 2020
Inventory Disclosure [Abstract]
Inventories, Net	Note 3 - Inventories, net: December June 30, 2019 2020 (In millions) Raw materials $ 124.4 $ 104.0 Work in process 39.0 49.8 Finished products 269.9 275.2 Supplies 69.7 69.4 Total $ 503.0 $ 498.4

Marketable Securities

Marketable Securities	6 Months Ended
	Jun. 30, 2020
Investments Debt And Equity Securities [Abstract]
Marketable Securities	Note 4 - 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. Any unrealized gains or losses on the securities are recognized in Marketable equity securities on our Condensed Consolidated Statements of Income. Fair measurement Market Cost Marketable security level value basis Unrealized loss (In millions) December 31, 2019: Valhi common stock 1 $ 3.2 $ 3.2 $ - NL and CompX common stocks 1 .1 .1 - Total $ 3.3 $ 3.3 $ - June 30, 2020: Valhi common stock 1 $ 1.5 $ 3.2 $ (1.7 ) NL and CompX common stocks 1 .1 .1 - Total $ 1.6 $ 3.3 $ (1.7 ) At December 31, 2019 and June 30, 2020, we held approximately 144,000 shares of Valhi’s common stock. At December 31, 2019 and June 30, 2020, the quoted per share market price of Valhi’s common stock was $22.44 and $10.48, respectively. Valhi implemented a reverse split of its common stock at a ratio of 1-for-12 effective on June 1, 2020. We have adjusted all share and per-share disclosures related to our investment in Valhi stock for all periods prior to June 2020 to give effect to the reverse stock split. The reverse stock split had no financial statement impact to us, and our ownership interest in Valhi did not change as a result of the split. We also held a nominal number of shares of CompX and NL common stocks at December 31, 2019 and June 30, 2020. The Valhi, CompX and NL common stocks we own are subject to the restrictions on resale pursuant to certain provisions of 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.

Other Noncurrent Assets

Other Noncurrent Assets	6 Months Ended
	Jun. 30, 2020
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Other Noncurrent Assets	Note 5 - Other noncurrent assets: December June 30, 2019 2020 (In millions) Pension asset $ 3.1 $ 3.9 Deferred financing costs, net .6 .5 Restricted cash - .5 Other 1.6 1.0 Total $ 5.3 $ 5.9

Long-Term debt

Long-Term debt	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Long-Term Debt	Note 6 - Long-term debt: December 31, June 30, 2019 2020 (In millions) Kronos International, Inc. 3.75% Senior Notes $ 442.6 $ 443.8 Other 2.9 2.7 Total debt 445.5 446.5 Less current maturities 1.5 1.5 Total long-term debt $ 444.0 $ 445.0 Senior Notes - At June 30, 2020, 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 $4.8 million. Revolving credit facilities - During the first six months of 2020, we had no borrowings or repayments under our North American revolving credit facility and our European revolving credit facility. At June 30, 2020, approximately $125.0 million was available for borrowing under the North American revolving credit 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 interest, income tax, depreciation and amortization expense (EBITDA) of the borrowers. Based upon the borrowers’ last twelve months EBITDA as of June 30, 2020 and the net debt to EBITDA financial test, the full €90.0 million amount of the credit facility ($100.9 million) was available for borrowing at June 30, 2020. Other - We are in compliance with all of our debt covenants at June 30, 2020.

Accounts Payable and Accrued Li

Accounts Payable and Accrued Liabilities	6 Months Ended
	Jun. 30, 2020
Payables And Accruals [Abstract]
Accounts Payable and Accrued Liabilities	Note 7 - Accounts payable and accrued liabilities: December June 30, 2019 2020 (In millions) Accounts payable $ 137.2 $ 96.9 Employee benefits 21.1 21.2 Accrued sales discounts and rebates 32.4 17.3 Payables to affiliates: LPC 16.4 15.0 Income taxes payable to Valhi 4.9 10.2 Operating lease liabilities 6.2 6.1 Other 40.8 34.6 Total $ 259.0 $ 201.3

Other Noncurrent Liabilities

Other Noncurrent Liabilities	6 Months Ended
	Jun. 30, 2020
Other Liabilities Disclosure [Abstract]
Other Noncurrent Liabilities	Note 8 – Other noncurrent liabilities: December 31, June 30, 2019 2020 (In millions) Accrued postretirement benefits $ 8.0 $ 7.7 Employee benefits 6.0 5.8 Other 14.2 13.4 Total $ 28.2 $ 26.9

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2020
Revenue From Contract With Customer [Abstract]
Revenue Recognition	Note 9 – 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 Six months ended June 30, June 30, 2019 2020 2019 2020 (In millions) Net sales - point of origin: United States $ 289.3 $ 226.6 $ 534.6 $ 463.6 Germany 248.5 183.1 467.7 412.2 Canada 95.9 85.6 174.4 153.3 Belgium 77.7 50.9 147.4 117.0 Norway 47.7 62.6 99.2 116.9 Eliminations (274.6 ) (222.8 ) (502.3 ) (456.0 ) Total $ 484.5 $ 386.0 $ 921.0 $ 807.0 Net sales - point of destination: Europe $ 229.4 $ 169.8 $ 444.6 $ 384.3 North America 161.5 148.9 308.3 281.2 Other 93.6 67.3 168.1 141.5 Total $ 484.5 $ 386.0 $ 921.0 $ 807.0

Employee Benefit Plans

Employee Benefit Plans	6 Months Ended
	Jun. 30, 2020
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plans	Note 10 – Employee benefit plans: The components of net periodic defined benefit pension cost are presented in the table below. Three months ended Six months ended June 30, June 30, 2019 2020 2019 2020 (In millions) Service cost $ 2.8 $ 3.2 $ 5.6 $ 6.4 Interest cost 3.5 2.6 7.0 5.2 Expected return on plan assets (3.0 ) (2.3 ) (6.2 ) (4.6 ) Amortization of prior service cost - .1 .1 .1 Recognized actuarial losses 3.3 4.3 6.7 8.7 Total $ 6.6 $ 7.9 $ 13.2 $ 15.8 We expect our 2020 contributions for our pension plans to be approximately $17 million.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Note 11 – Income taxes: Three months ended Six months ended June 30, June 30, 2019 2020 2019 2020 (In millions) Expected tax expense, at U.S. federal statutory income tax rate of 21% $ 8.5 $ 5.0 $ 17.6 $ 12.4 Non-U.S. tax rates 2.3 (.3 ) 4.7 .6 Incremental net tax benefit on earnings and losses of U.S. and non-U.S. companies (.6 ) (3.3 ) (1.1 ) (4.6 ) Global intangible low-tax income, net .7 3.0 1.5 4.2 Valuation allowance - .5 - - Adjustment to the reserve for uncertain tax positions, net .2 .1 .4 .5 Nondeductible expenses .3 .6 .6 1.0 Other, net - (.5 ) .5 (.6 ) Income tax expense $ 11.4 $ 5.1 $ 24.2 $ 13.5 Comprehensive provision for income taxes allocable to: Net income $ 11.4 $ 5.1 $ 24.2 $ 13.5 Other comprehensive income (loss): Pension plans 1.2 1.4 2.4 2.8 OPEB plans (.1 ) (.1 ) (.1 ) (.1 ) Total $ 12.5 $ 6.4 $ 26.5 $ 16.2 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. The amount shown on such table for incremental net tax expense (benefit) on earnings and losses of U.S. and non-U.S. companies includes, as applicable, (i) deferred state and non-U.S. income taxes (or deferred income tax benefits) and deferred withholding taxes, as applicable, associated with the current-year change in the aggregate amount of undistributed earnings of all of our non-U.S. subsidiaries, which earnings are not permanently reinvested and (ii) current U.S. income taxes (or current income tax benefit) 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. On March 27, 2020, the “Coronavirus Aid, Relief and Economic Security (CARES) Act” was signed into law in response to the COVID-19 pandemic. The CARES Act, among other things, includes provisions relating to refundable payroll tax credits, deferment of employer side social security payments, modifications to the limitation of business interest for tax years beginning in 2019 and 2020 and technical corrections to tax depreciation methods for qualified improvement property. The modification to the business interest provisions increases the business interest limitation from 30% of adjusted taxable income to 50% of adjusted taxable income which increases our allowable interest expense deduction for 2019 and 2020. Consequently, in the first quarter of 2020 we recognized a cash tax benefit of $.5 million related to the reversal of the valuation allowance recognized in 2019 for the portion of the disallowed interest expense we did not expect to fully utilize at December 31, 2019 and we have considered such modifications in our estimate of the 2020 effective tax rate. We have determined other provisions of the CARES Act will not have a material impact on our provision for income taxes in 2020. Tax authorities may in the future propose tax deficiencies, including penalties and interest, related to examinations of our U.S. and non-U.S. income tax returns. Because of the uncertainties involved in settlement initiatives and court and tax proceedings, we cannot guarantee that these tax matters, if any, will be resolved in our favor, and therefore our potential exposure, if any, is also uncertain. 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 any future 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 decrease by approximately $1.1 million during the next twelve months primarily due to the expiration of certain statutes of limitations.

Stockholders' equity

Stockholders' equity	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Stockholders' equity	Note 12 - Stockholders’ equity: Changes in accumulated other comprehensive loss are presented in the table below. See Note 4 for further discussion of our marketable securities and Note 10 for discussion of our defined benefit pension plans. Three months ended Six months ended June 30, June 30, 2019 2020 2019 2020 (In millions) Accumulated other comprehensive loss, net of tax: Currency translation: Balance at beginning of period $ (245.1 ) $ (288.7 ) $ (245.0 ) $ (246.8 ) Other comprehensive income (loss) 7.1 18.0 7.0 (23.9 ) Balance at end of period $ (238.0 ) $ (270.7 ) $ (238.0 ) $ (270.7 ) Defined benefit pension plans: Balance at beginning of period $ (177.7 ) $ (199.2 ) $ (180.0 ) $ (202.2 ) Other comprehensive income - amortization of prior service cost and net losses included in net periodic pension cost 2.2 3.1 4.5 6.1 Balance at end of period $ (175.5 ) $ (196.1 ) $ (175.5 ) $ (196.1 ) OPEB plans: Balance at beginning of period $ .6 $ .1 $ .7 $ .2 Other comprehensive loss - amortization of prior service credit and net losses included in net periodic OPEB cost - - (.1 ) (.1 ) Balance at end of period $ .6 $ .1 $ .6 $ .1 Total accumulated other comprehensive loss: Balance at beginning of period $ (422.2 ) $ (487.8 ) $ (424.3 ) $ (448.8 ) Other comprehensive income (loss) 9.3 21.1 11.4 (17.9 ) Balance at end of period $ (412.9 ) $ (466.7 ) $ (412.9 ) $ (466.7 ) Prior to 2019, 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 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. At December 31, 2019, 1,686,008 shares were available for repurchase under this stock repurchase program. During the first six months of 2020, we acquired 122,489 shares of our common stock in market transactions for an aggregate purchase price of $1.0 million and subsequently canceled all such shares. At June 30, 2020 1,563,519 shares are available for repurchase under this stock repurchase program.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2020
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 13 - 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 condition, results of operations or liquidity.

Financial Instruments

Financial Instruments	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Financial Instruments	Note 14 - 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, 2019 June 30, 2020 Carrying amount Fair value Carrying amount Fair value (In millions) Cash, cash equivalents and restricted cash $ 392.3 $ 392.3 $ 343.4 $ 343.4 Long-term debt - Fixed rate Senior Notes 442.6 457.0 443.8 441.6 At June 30, 2020, the estimated market price of our Senior Notes was €984 per €1,000 principal amount. The fair value of our Senior Notes is based on quoted market prices; however, these quoted market prices represented Level 2 inputs because the markets in which the Senior Notes trade are 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 7.

Recent Accounting Pronouncement

Recent Accounting Pronouncement	6 Months Ended
	Jun. 30, 2020
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Recent Accounting Pronouncement	Note 15 - Recent accounting pronouncement: In December 2019, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) 2019-12, Simplifying the Accounting for Income Taxes, which changes the accounting for certain income tax transactions and reduces complexity in accounting for income taxes in certain areas. The ASU introduces new guidance including providing a policy election for an entity to not allocate consolidated current and deferred tax expense when a member of a consolidated tax return is not subject to income tax in its separate financial statements and is a disregarded entity by the taxing authority; and providing guidance to evaluate whether a step-up in tax basis of goodwill relates to a business combination in which book goodwill was recognized or a separate transaction. The ASU also changes existing guidance in a number of areas, including: the method of making an intraperiod allocation of total income tax expense if there is a loss in continuing operations and gains outside of continuing operations; determining when a deferred tax liability is recognized after an investor in a non-U.S. entity transitions to or from the equity method of accounting; accounting for tax law changes and year-to-date losses in interim periods; and determining how to apply the income tax guidance to franchise taxes that are partially based on income. We adopted this ASU as of January 1, 2020. The adoption of this ASU did not have a material effect on our Condensed Consolidated Financial Statements.

Organization and Basis of Pre_2

Organization and Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization	Organization - At June 30, 2020, 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 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 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 June 30, 2020 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, 2019 that we filed with the Securities and Exchange Commission (SEC) on March 11, 2020 (2019 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, 2019 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, 2019) 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 periods ended June 30, 2020, 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 2019 Consolidated Financial Statements contained in our 2019 Annual Report. Our results of operations for the second quarter of 2020 were significantly impacted by the COVID-19 pandemic, specifically through reduced demand for many of our products resulting from the rapid contraction of vast areas of the global economy. The extent of the COVID-19 impact on our future operations will depend on the time period and degree to which the COVID-19 pandemic persists in the global economy thereby reducing customer demand for certain of our products, including the timing and extent to which our customers’ operations continue to be impacted, our customers’ perception as to when consumer demand for their products will return to pre-pandemic levels and on any future disruptions in our operations or our suppliers’ operations, all of which are difficult to predict. 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.
Recent Accounting Pronouncement	In December 2019, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) 2019-12, Simplifying the Accounting for Income Taxes, which changes the accounting for certain income tax transactions and reduces complexity in accounting for income taxes in certain areas. The ASU introduces new guidance including providing a policy election for an entity to not allocate consolidated current and deferred tax expense when a member of a consolidated tax return is not subject to income tax in its separate financial statements and is a disregarded entity by the taxing authority; and providing guidance to evaluate whether a step-up in tax basis of goodwill relates to a business combination in which book goodwill was recognized or a separate transaction. The ASU also changes existing guidance in a number of areas, including: the method of making an intraperiod allocation of total income tax expense if there is a loss in continuing operations and gains outside of continuing operations; determining when a deferred tax liability is recognized after an investor in a non-U.S. entity transitions to or from the equity method of accounting; accounting for tax law changes and year-to-date losses in interim periods; and determining how to apply the income tax guidance to franchise taxes that are partially based on income. We adopted this ASU as of January 1, 2020. The adoption of this ASU did not have a material effect on our Condensed Consolidated Financial Statements.

Accounts and Other Receivable_2

Accounts and Other Receivables, Net (Tables)	6 Months Ended
	Jun. 30, 2020
Receivables [Abstract]
Accounts and Other Receivables, Net	December June 30, 2019 2020 (In millions) Trade receivables $ 270.5 $ 287.4 Recoverable VAT and other receivables 25.4 17.0 Receivables from affiliates: Louisiana Pigment Company, L.P. (LPC) 4.7 10.9 Other 2.2 2.5 Refundable income taxes 7.7 4.1 Allowance for doubtful accounts (1.1 ) (1.4 ) Total $ 309.4 $ 320.5

Inventories, Net (Tables)

Inventories, Net (Tables)	6 Months Ended
	Jun. 30, 2020
Inventory Disclosure [Abstract]
Schedule of Inventories, Net	December June 30, 2019 2020 (In millions) Raw materials $ 124.4 $ 104.0 Work in process 39.0 49.8 Finished products 269.9 275.2 Supplies 69.7 69.4 Total $ 503.0 $ 498.4

Marketable Securities (Tables)

Marketable Securities (Tables)	6 Months Ended
	Jun. 30, 2020
Investments Debt And Equity Securities [Abstract]
Classification of Marketable Securities	Fair measurement Market Cost Marketable security level value basis Unrealized loss (In millions) December 31, 2019: Valhi common stock 1 $ 3.2 $ 3.2 $ - NL and CompX common stocks 1 .1 .1 - Total $ 3.3 $ 3.3 $ - June 30, 2020: Valhi common stock 1 $ 1.5 $ 3.2 $ (1.7 ) NL and CompX common stocks 1 .1 .1 - Total $ 1.6 $ 3.3 $ (1.7 )

Other Noncurrent Assets (Tables

Other Noncurrent Assets (Tables)	6 Months Ended
	Jun. 30, 2020
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Schedule of Other Noncurrent Assets	December June 30, 2019 2020 (In millions) Pension asset $ 3.1 $ 3.9 Deferred financing costs, net .6 .5 Restricted cash - .5 Other 1.6 1.0 Total $ 5.3 $ 5.9

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Components of Long Term Debt	December 31, June 30, 2019 2020 (In millions) Kronos International, Inc. 3.75% Senior Notes $ 442.6 $ 443.8 Other 2.9 2.7 Total debt 445.5 446.5 Less current maturities 1.5 1.5 Total long-term debt $ 444.0 $ 445.0

Accounts Payable and Accrued _2

Accounts Payable and Accrued Liabilities (Tables)	6 Months Ended
	Jun. 30, 2020
Payables And Accruals [Abstract]
Components of Accounts Payable and Accrued Liabilities	December June 30, 2019 2020 (In millions) Accounts payable $ 137.2 $ 96.9 Employee benefits 21.1 21.2 Accrued sales discounts and rebates 32.4 17.3 Payables to affiliates: LPC 16.4 15.0 Income taxes payable to Valhi 4.9 10.2 Operating lease liabilities 6.2 6.1 Other 40.8 34.6 Total $ 259.0 $ 201.3

Other Noncurrent Liabilities (T

Other Noncurrent Liabilities (Tables)	6 Months Ended
	Jun. 30, 2020
Other Liabilities Disclosure [Abstract]
Components of Other Noncurrent Liabilities	December 31, June 30, 2019 2020 (In millions) Accrued postretirement benefits $ 8.0 $ 7.7 Employee benefits 6.0 5.8 Other 14.2 13.4 Total $ 28.2 $ 26.9

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2020
Revenue From Contract With Customer [Abstract]
Disaggregation of Net Sales by Place of Manufacture and to Location of Customer	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 Six months ended June 30, June 30, 2019 2020 2019 2020 (In millions) Net sales - point of origin: United States $ 289.3 $ 226.6 $ 534.6 $ 463.6 Germany 248.5 183.1 467.7 412.2 Canada 95.9 85.6 174.4 153.3 Belgium 77.7 50.9 147.4 117.0 Norway 47.7 62.6 99.2 116.9 Eliminations (274.6 ) (222.8 ) (502.3 ) (456.0 ) Total $ 484.5 $ 386.0 $ 921.0 $ 807.0 Net sales - point of destination: Europe $ 229.4 $ 169.8 $ 444.6 $ 384.3 North America 161.5 148.9 308.3 281.2 Other 93.6 67.3 168.1 141.5 Total $ 484.5 $ 386.0 $ 921.0 $ 807.0

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2020
Compensation And Retirement Disclosure [Abstract]
Components of Net Periodic Benefit Cost	The components of net periodic defined benefit pension cost are presented in the table below. Three months ended Six months ended June 30, June 30, 2019 2020 2019 2020 (In millions) Service cost $ 2.8 $ 3.2 $ 5.6 $ 6.4 Interest cost 3.5 2.6 7.0 5.2 Expected return on plan assets (3.0 ) (2.3 ) (6.2 ) (4.6 ) Amortization of prior service cost - .1 .1 .1 Recognized actuarial losses 3.3 4.3 6.7 8.7 Total $ 6.6 $ 7.9 $ 13.2 $ 15.8

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Components of Income Taxes and Comprehensive Provision for Income Taxes Allocation	Three months ended Six months ended June 30, June 30, 2019 2020 2019 2020 (In millions) Expected tax expense, at U.S. federal statutory income tax rate of 21% $ 8.5 $ 5.0 $ 17.6 $ 12.4 Non-U.S. tax rates 2.3 (.3 ) 4.7 .6 Incremental net tax benefit on earnings and losses of U.S. and non-U.S. companies (.6 ) (3.3 ) (1.1 ) (4.6 ) Global intangible low-tax income, net .7 3.0 1.5 4.2 Valuation allowance - .5 - - Adjustment to the reserve for uncertain tax positions, net .2 .1 .4 .5 Nondeductible expenses .3 .6 .6 1.0 Other, net - (.5 ) .5 (.6 ) Income tax expense $ 11.4 $ 5.1 $ 24.2 $ 13.5 Comprehensive provision for income taxes allocable to: Net income $ 11.4 $ 5.1 $ 24.2 $ 13.5 Other comprehensive income (loss): Pension plans 1.2 1.4 2.4 2.8 OPEB plans (.1 ) (.1 ) (.1 ) (.1 ) Total $ 12.5 $ 6.4 $ 26.5 $ 16.2

Stockholders' equity (Tables)

Stockholders' equity (Tables)	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Loss	Changes in accumulated other comprehensive loss are presented in the table below. See Note 4 for further discussion of our marketable securities and Note 10 for discussion of our defined benefit pension plans. Three months ended Six months ended June 30, June 30, 2019 2020 2019 2020 (In millions) Accumulated other comprehensive loss, net of tax: Currency translation: Balance at beginning of period $ (245.1 ) $ (288.7 ) $ (245.0 ) $ (246.8 ) Other comprehensive income (loss) 7.1 18.0 7.0 (23.9 ) Balance at end of period $ (238.0 ) $ (270.7 ) $ (238.0 ) $ (270.7 ) Defined benefit pension plans: Balance at beginning of period $ (177.7 ) $ (199.2 ) $ (180.0 ) $ (202.2 ) Other comprehensive income - amortization of prior service cost and net losses included in net periodic pension cost 2.2 3.1 4.5 6.1 Balance at end of period $ (175.5 ) $ (196.1 ) $ (175.5 ) $ (196.1 ) OPEB plans: Balance at beginning of period $ .6 $ .1 $ .7 $ .2 Other comprehensive loss - amortization of prior service credit and net losses included in net periodic OPEB cost - - (.1 ) (.1 ) Balance at end of period $ .6 $ .1 $ .6 $ .1 Total accumulated other comprehensive loss: Balance at beginning of period $ (422.2 ) $ (487.8 ) $ (424.3 ) $ (448.8 ) Other comprehensive income (loss) 9.3 21.1 11.4 (17.9 ) Balance at end of period $ (412.9 ) $ (466.7 ) $ (412.9 ) $ (466.7 )

Financial Instruments (Tables)

Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
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: December 31, 2019 June 30, 2020 Carrying amount Fair value Carrying amount Fair value (In millions) Cash, cash equivalents and restricted cash $ 392.3 $ 392.3 $ 343.4 $ 343.4 Long-term debt - Fixed rate Senior Notes 442.6 457.0 443.8 441.6

Organization and Basis of Pre_3

Organization and Basis of Presentation - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2020
Valhi Inc | Kronos Worldwide, Inc.
Organization And Basis Of Presentation [Line Items]
Ownership percentage in subsidiary	50.00%
Valhi Inc | NL Industries Inc.
Organization And Basis Of Presentation [Line Items]
Ownership percentage in company	83.00%
NL Industries Inc. | Kronos Worldwide, Inc.
Organization And Basis Of Presentation [Line Items]
Ownership percentage	30.00%
Contran
Organization And Basis Of Presentation [Line Items]
Controlling interest description	Consequently, at June 30, 2020 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%

Accounts and Other Receivable_3

Accounts and Other Receivables, Net - Accounts and Other Receivables, Net (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Accounts Notes And Loans Receivable [Line Items]
Allowance for doubtful accounts	$ (1.4)	$ (1.1)
Total	320.5	309.4
Trade receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts and other receivables	287.4	270.5
Recoverable VAT and other receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts and other receivables	17	25.4
Other
Accounts Notes And Loans Receivable [Line Items]
Receivables from affiliates	2.5	2.2
Refundable income taxes
Accounts Notes And Loans Receivable [Line Items]
Refundable income taxes	4.1	7.7
Louisiana Pigment Company, L.P. ("LPC'')
Accounts Notes And Loans Receivable [Line Items]
Receivables from affiliates	$ 10.9	$ 4.7

Inventories, Net - Schedule of

Inventories, Net - Schedule of Inventories, Net (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 104	$ 124.4
Work in process	49.8	39
Finished products	275.2	269.9
Supplies	69.4	69.7
Total	$ 498.4	$ 503

Marketable Securities - Classif

Marketable Securities - Classification of Marketable Securities (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Marketable Securities [Line Items]
Market value	$ 1.6	$ 3.3
Cost basis	3.3	3.3
Unrealized loss	(1.7)
Level 1 | Common stock | Valhi
Marketable Securities [Line Items]
Market value	1.5	3.2
Cost basis	3.2	3.2
Unrealized loss	(1.7)
Level 1 | Common stock | NL And CompX
Marketable Securities [Line Items]
Market value	0.1	0.1
Cost basis	$ 0.1	$ 0.1

Marketable Securities - Additio

Marketable Securities - Additional Information (Detail) - Valhi Inc - Common stock shares in Millions	Jun. 01, 2020	Jun. 30, 2020$ / sharesshares	Dec. 31, 2019$ / sharesshares
Marketable Securities [Line Items]
Investments in publicly-traded shares | shares		144,000	144,000
Quoted market price of per share | $ / shares		$ 10.48	$ 22.44
Reverse stock split description		1-for-12
Reverse stock split ratio	0.083

Other Noncurrent Assets - Sched

Other Noncurrent Assets - Schedule of Other Noncurrent Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Disclosure Other Non Current Assets Schedule Of Other Non Current Assets [Abstract]
Pension asset	$ 3.9	$ 3.1
Deferred financing costs, net	0.5	0.6
Restricted cash	0.5
Other	1	1.6
Total	$ 5.9	$ 5.3

Long-Term Debt - Components of

Long-Term Debt - Components of Long-Term Debt (Detail) € in Millions, $ in Millions	Jun. 30, 2020USD ($)	Jun. 30, 2020EUR (€)	Dec. 31, 2019USD ($)
Debt Instrument [Line Items]
Kronos International, Inc. 3.75% Senior Notes	$ 443.8		$ 442.6
Other	2.7		2.9
Total debt	446.5		445.5
Less current maturities	1.5		1.5
Total long-term debt	445		444
Kronos International, Inc | 3.75% Senior Notes
Debt Instrument [Line Items]
Kronos International, Inc. 3.75% Senior Notes	$ 443.8	€ 400	$ 442.6

Long-Term Debt - Senior Secured

Long-Term Debt - Senior Secured Notes - Additional Information (Detail) € in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)	Jun. 30, 2020EUR (€)	Dec. 31, 2019USD ($)
Debt Instrument [Line Items]
Aggregate principal amount outstanding	$ 443.8		$ 442.6
Kronos International, Inc | 3.75% Senior Secured Notes due September 15, 2025
Debt Instrument [Line Items]
Aggregate principal amount outstanding	$ 443.8	€ 400	$ 442.6
Debt instrument interest rate	3.75%	3.75%
Unamortized debt issuance costs	$ 4.8
Debt instrument maturity date	Sep. 15, 2025

Long-Term Debt - Revolving Cred

Long-Term Debt - Revolving Credit Facilities - Additional Information (Detail) - 6 months ended Jun. 30, 2020 € in Millions	USD ($)	EUR (€)
European Revolving Credit Facility
Debt Instrument [Line Items]
Borrowings under credit facility during the period	$ 0
Repayments of Lines of Credit	0
Amount available for Borrowing	100,900,000	€ 90
North American Revolving Credit Facility
Debt Instrument [Line Items]
Borrowings under credit facility during the period	0
Repayments of Lines of Credit	0
Amount available for Borrowing	$ 125,000,000

Accounts Payable and Accrued _3

Accounts Payable and Accrued Liabilities - Components of Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Accounts Payable And Accrued Liabilities [Line Items]
Accounts payable	$ 96.9	$ 137.2
Employee benefits	21.2	21.1
Accrued sales discounts and rebates	17.3	32.4
Operating lease liabilities	6.1	6.2
Other	34.6	40.8
Total	201.3	259
LPC
Accounts Payable And Accrued Liabilities [Line Items]
Payables to affiliate	15	16.4
Valhi | Income taxes
Accounts Payable And Accrued Liabilities [Line Items]
Payables to affiliate	$ 10.2	$ 4.9

Other Noncurrent Liabilities -

Other Noncurrent Liabilities - Components of Other Noncurrent Liabilities (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Other Liabilities Noncurrent [Abstract]
Accrued postretirement benefits	$ 7.7	$ 8
Employee benefits	5.8	6
Other	13.4	14.2
Total	$ 26.9	$ 28.2

Revenue Recognition - Disaggreg

Revenue Recognition - Disaggregation of Net Sales by Place of Manufacture and to Location of Customer (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	$ 386	$ 484.5	$ 807	$ 921
Point of origin | Reportable Geographical Components | United States
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	226.6	289.3	463.6	534.6
Point of origin | Reportable Geographical Components | Germany
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	183.1	248.5	412.2	467.7
Point of origin | Reportable Geographical Components | Canada
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	85.6	95.9	153.3	174.4
Point of origin | Reportable Geographical Components | Belgium
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	50.9	77.7	117	147.4
Point of origin | Reportable Geographical Components | Norway
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	62.6	47.7	116.9	99.2
Point of origin | Eliminations
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	(222.8)	(274.6)	(456)	(502.3)
Point of destination | Europe
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	169.8	229.4	384.3	444.6
Point of destination | North America
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	148.9	161.5	281.2	308.3
Point of destination | Other
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	$ 67.3	$ 93.6	$ 141.5	$ 168.1

Employee Benefit Plans - Compon

Employee Benefit Plans - Components of Net Periodic Benefit Cost (Detail) - Defined Benefit Pension Plans - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3.2	$ 2.8	$ 6.4	$ 5.6
Interest cost	2.6	3.5	5.2	7
Expected return on plan assets	(2.3)	(3)	(4.6)	(6.2)
Amortization of prior service cost	0.1		0.1	0.1
Recognized actuarial losses	4.3	3.3	8.7	6.7
Total	$ 7.9	$ 6.6	$ 15.8	$ 13.2

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Detail) $ in Millions	Jun. 30, 2020USD ($)
Compensation And Retirement Disclosure [Abstract]
Expected contributions for pension plans in 2019	$ 17

Income Taxes - Components of In

Income Taxes - Components of Income Taxes and Comprehensive Provision for Income Taxes Allocation (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Schedule Of Income Tax [Line Items]
Expected tax expense, at U.S. federal statutory income tax rate of 21%	$ 5	$ 8.5	$ 12.4	$ 17.6
Non-U.S. tax rates	(0.3)	2.3	0.6	4.7
Incremental net tax benefit on earnings and losses of U.S. and non-U.S. companies	(3.3)	(0.6)	(4.6)	(1.1)
Global intangible low-tax income, net	3	0.7	4.2	1.5
Valuation allowance	0.5
Adjustment to the reserve for uncertain tax positions, net	0.1	0.2	0.5	0.4
Nondeductible expenses	0.6	0.3	1	0.6
Other, net	(0.5)		(0.6)	0.5
Income tax expense	5.1	11.4	13.5	24.2
Comprehensive provision for income taxes allocable to:
Net income	5.1	11.4	13.5	24.2
Other comprehensive income (loss):
Total	6.4	12.5	16.2	26.5
Defined Benefit Pension Plans
Other comprehensive income (loss):
Benefit plans	1.4	1.2	2.8	2.4
OPEB
Other comprehensive income (loss):
Benefit plans	$ (0.1)	$ (0.1)	$ (0.1)	$ (0.1)

Income Taxes - Components of _2

Income Taxes - Components of Income Taxes and Comprehensive Provision for Income Taxes Allocation (Parenthetical) (Detail)	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
U.S. Federal statutory income tax rate	21.00%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	Mar. 27, 2020	Mar. 26, 2020	Mar. 31, 2020	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Business interest income, adjusted taxable income		30.00%
CARES act of 2020, Business interest income, adjusted taxable income	50.00%
Cash tax benefit due to reversal of valuation allowance			$ 0.5
Estimated reduction in unrecognized tax benefits due to expiration of certain statutes of limitations				$ 1.1

Stockholders' equity - Schedule

Stockholders' equity - Schedule of Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ 782.3	$ 851.3	$ 816.1	$ 839.8
Ending Balance	801.3	868	801.3	868
Currency Translation
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(288.7)	(245.1)	(246.8)	(245)
Other comprehensive income (loss)	18	7.1	(23.9)	7
Ending Balance	(270.7)	(238)	(270.7)	(238)
Accumulated Defined Benefit Plans Adjustment | Defined Benefit Pension Plans
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(199.2)	(177.7)	(202.2)	(180)
Other comprehensive income (loss)	3.1	2.2	6.1	4.5
Ending Balance	(196.1)	(175.5)	(196.1)	(175.5)
Accumulated Defined Benefit Plans Adjustment | OPEB Plans
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	0.1	0.6	0.2	0.7
Other comprehensive income (loss)			(0.1)	(0.1)
Ending Balance	0.1	0.6	0.1	0.6
Total Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(487.8)	(422.2)	(448.8)	(424.3)
Other comprehensive income (loss)	21.1	9.3	(17.9)	11.4
Ending Balance	$ (466.7)	$ (412.9)	$ (466.7)	$ (412.9)

Stockholders' equity - Addition

Stockholders' equity - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income Loss [Line Items]
Number of shares authorized for repurchase					2,000,000
Shares available for repurchase under the plan		1,563,519		1,686,008
Aggregate purchase price	$ 1.4	$ 1	$ 1.4
Treasury stock
Accumulated Other Comprehensive Income Loss [Line Items]
Stock repurchased and acquired in market transactions		122,489
Aggregate purchase price	$ 1.4	$ 1	$ 1.4

Financial Instruments - Financi

Financial Instruments - Financial Instruments not Carried at Fair Value but which Require Fair Value Disclosure (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Cash, cash equivalents and restricted cash, Carrying amount	$ 343.4	$ 392.3	$ 329.5	$ 374.7
Long-term debt - Fixed rate Senior Notes, Carrying amount	443.8	442.6
Cash, cash equivalents and restricted cash, Fair value	343.4	392.3
Long-term debt - Fixed rate Senior Notes, Fair value	$ 441.6	$ 457

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - Senior Notes	Jun. 30, 2020EUR (€)
Financial Instrument At Fair Value [Line Items]
Debt instrument base principal amount	€ 1,000
Debt instrument estimated market price per €1,000 principal amount	€ 984