Tronox (TROX) 10-K 22 Feb 22 2021 FY Annual report Financial data

Cover Page

Cover Page - USD ($)	12 Months Ended
	Dec. 31, 2021	Jan. 31, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	1-35573
Entity Registrant Name	TRONOX HOLDINGS PLC
Entity Incorporation, State or Country Code	X0
Entity Tax Identification Number	98-1467236
Entity Address, Address Line One	263 Tresser Boulevard
Entity Address, Address Line Two	Suite 1100
Entity Address, City or Town	Stamford
Entity Address, State or Province	CT
Entity Address, Postal Zip Code	06901
City Area Code	203
Local Phone Number	705-3800
Title of 12(b) Security	Ordinary Shares, par value $0.01 per share
Security Exchange Name	NYSE
Trading Symbol	TROX
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 2,598,591,296
Entity Common Stock, Shares Outstanding		153,937,928
Documents Incorporated by Reference	Portions of the registrant’s proxy statement for its 2022 annual general meeting of shareholders are incorporated by reference in this Form 10-K in response to Part III Items 10, 11, 12, 13 and 14.
Entity Central Index Key	0001530804
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2021
Audit Information [Abstract]
Auditor Name	PricewaterhouseCoopers LLP
Auditor Location	Stamford, Connecticut
Auditor Firm ID	238

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 3,572	$ 2,758	$ 2,642
Cost of goods sold	2,677	2,137	2,159
Contract loss	0	0	19
Gross profit	895	621	464
Selling, general and administrative expenses	318	347	347
Restructuring	0	3	22
Income from operations	577	271	95
Interest expense	(157)	(189)	(201)
Interest income	7	8	18
Loss on extinguishment of debt	(65)	(2)	(3)
Other income, net	12	26	3
Income (loss) from continuing operations before income taxes	374	114	(88)
Income tax (provision) benefit	(71)	881	(14)
Net income (loss) from continuing operations	303	995	(102)
Net income from discontinued operations, net of tax	0	0	5
Net income (loss)	303	995	(97)
Net income	17	26	12
Net income (loss) attributable to Tronox Holdings plc	$ 286	$ 969	$ (109)
Net income (loss) per share, basic:
Continuing operations (in dollars per share)	$ 1.88	$ 6.76	$ (0.81)
Discontinued operations (in dollars per share)	0	0	0.03
Basic net income (loss) per ordinary share	1.88	6.76	(0.78)
Net income (loss) per share, diluted:
Continuing operations (in dollars per share)	1.81	6.69	(0.81)
Discontinued operations (in dollars per share)	0	0	0.03
Diluted net income (loss) per ordinary share (in dollars per share)	$ 1.81	$ 6.69	$ (0.78)
Weighted average shares outstanding, basic (in thousands) (in shares)	152,056	143,355	139,859
Weighted average ordinary shares, diluted (in thousands) (in shares)	157,945	144,906	139,859

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 303	$ 995	$ (97)
Other comprehensive income (loss):
Foreign currency translation adjustments	(113)	(4)	19
Pension and postretirement plans (See Note 23):
Actuarial gains (losses), net of taxes of $6, $5 and $1 in 2021, 2020 and 2019, respectively	16	(20)	(11)
Amortization of unrecognized actuarial losses, net of taxes of $2 in 2021, and less than $1 in both 2020 and 2019	4	4	2
Total pension and postretirement gains (losses)	20	(16)	(9)
Realized (gains) losses on derivative instruments reclassified from accumulated other comprehensive loss to the Consolidated Statements of Operations	(32)	4	(7)
Unrealized gains (losses) on derivative financial instruments, (net of taxes of less than $1, $5 and $5 in 2021, 2020, 2019, respectively; See Note 16)	21	(4)	8
Other comprehensive (loss) income	(104)	(20)	11
Total comprehensive income (loss)	199	975	(86)
Comprehensive income (loss) attributable to noncontrolling interest:
Net income	17	26	12
Foreign currency translation adjustments	(10)	(16)	16
Comprehensive income attributable to noncontrolling interest	7	10	28
Comprehensive income (loss) attributable to Tronox Holdings plc	$ 192	$ 965	$ (114)

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Actuarial gains (losses), tax	$ 6	$ (5)	$ 1
Amortization of unrecognized actuarial losses, tax (less than)	(2)	1	1
Unrealized gains (loss) on derivative instruments, tax	$ (1)	$ (5)	$ 5

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current Assets
Cash and cash equivalents	$ 228	$ 619
Restricted cash	4	29
Accounts receivable (net of allowance of $4 in 2021 and $5 in 2020)	631	540
Inventories, net	1,048	1,137
Prepaid and other assets	132	200
Income taxes receivable	6	4
Total current assets	2,049	2,529
Noncurrent Assets
Property, plant and equipment, net	1,710	1,759
Mineral leaseholds, net	747	803
Intangible assets, net	217	201
Lease right of use assets, net	85	81
Deferred tax assets	985	1,020
Other long-term assets	194	175
Total assets	5,987	6,568
Current Liabilities
Accounts payable	438	356
Accrued liabilities	328	350
Short-term lease liabilities	26	39
Long-term debt due within one year	18	58
Income taxes payable	12	2
Total current liabilities	822	805
Noncurrent Liabilities
Long-term debt, net	2,558	3,263
Pension and postretirement healthcare benefits	116	146
Asset retirement obligations	139	157
Environmental liabilities	66	67
Long-term lease liabilities	55	41
Deferred tax liabilities	157	176
Other long-term liabilities	32	42
Total liabilities	3,945	4,697
Commitments and Contingencies - Note 20
Shareholders’ Equity
Tronox Holdings plc ordinary shares, par value $0.01 — 153,934,677 shares issued and outstanding at December 31, 2021 and 143,557,479 shares issued and outstanding at December 31, 2020	2	1
Capital in excess of par value	2,067	1,873
Retained Earnings	663	434
Accumulated other comprehensive loss	(738)	(610)
Total Tronox Holdings plc shareholders’ equity	1,994	1,698
Noncontrolling interest	48	173
Total equity	2,042	1,871
Total liabilities and equity	$ 5,987	$ 6,568

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current Assets
Allowance	$ 4	$ 5
Shareholders’ Equity
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	153,934,677	143,557,479
Common stock, shares outstanding (in shares)	153,934,677	143,557,479

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flows from Operating Activities:
Net income (loss)	$ 303	$ 995	$ (97)
Net income from discontinued operations, net of tax	0	0	5
Net income (loss) from continuing operations	303	995	(102)
Adjustments to reconcile net income (loss) from continuing operations to net cash provided by operating activities, continuing operations:
Depreciation, depletion and amortization	297	304	280
Deferred income taxes	15	(899)	(9)
Share-based compensation expense	31	30	32
Amortization of deferred debt issuance costs and discount on debt	11	10	8
Loss on extinguishment of debt	65	2	3
Contract loss	0	0	19
Acquired inventory step-up recognized in earnings	0	0	98
Other non-cash affecting net income (loss)	36	65	25
Changes in assets and liabilities:
(Increase) decrease in accounts receivable, net	(108)	(49)	78
Decrease (increase) in inventories, net	53	(21)	(59)
Decrease (increase) in prepaid and other assets	53	(29)	20
Increase in accounts payable and accrued liabilities	53	17	67
Net changes in income tax payables and receivables	9	(2)	(13)
Changes in other non-current assets and liabilities	(78)	(68)	(35)
Cash provided by operating activities – continuing operations	740	355	412
Cash Flows from Investing Activities:
Capital expenditures	(272)	(195)	(198)
Cristal Acquisition	0	0	(1,675)
Proceeds from sale of Ashtabula	0	0	701
Insurance proceeds	1	1	10
Loans	0	(36)	(25)
Proceeds from the sale of assets	2	1	2
Cash used in investing activities – continuing operations	(269)	(229)	(1,185)
Cash Flows from Financing Activities:
Repayments of short-term debt	0	(13)	0
Repayments of long-term debt	(3,212)	(233)	(387)
Proceeds from short-term debt	0	13	0
Proceeds from long-term debt	2,472	500	222
Repurchase of common stock	0	0	(288)
Acquisition of noncontrolling interest	0	0	(148)
Debt issuance costs	(37)	(10)	(4)
Call premium paid	(40)	0	0
Dividends paid	(65)	(40)	(27)
Restricted stock and performance-based shares settled in cash for taxes	(3)	(3)	(6)
Proceeds from the exercise of stock options	8	0	0
Cash (used in) provided by financing activities – continuing operations	(877)	214	(638)
Discontinued Operations:
Cash provided by operating activities	0	0	29
Cash used in investing activities	0	0	(1)
Net cash flows provided by discontinued operations	0	0	28
Effects of exchange rate changes on cash and cash equivalents and restricted cash	(10)	(3)	(2)
Net (decrease) increase in cash and cash equivalents and restricted cash	(416)	337	(1,385)
Cash and cash equivalents and restricted cash at beginning of period	648	311	1,696
Cash and cash equivalents and restricted cash at end of period - continuing operations	232	648	311
Supplemental cash flow information - continuing operations:
Interest paid, net	138	159	188
Income taxes paid	$ 47	$ 17	$ 34

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total	Tronox Holdings plc Ordinary Shares	Capital in Excess of par Value	(Accumulated Deficit) Retained Earnings	Accumulated Other Comprehensive Loss	Total Tronox Limited Shareholders’ Equity	Non- controlling Interest
Balance, beginning of period (in shares) at Dec. 31, 2018		122,934,000
Beginning Balance at Dec. 31, 2018	$ 862	$ 1	$ 1,579	$ (357)	$ (540)	$ 683	$ 179
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(97)			(109)		(109)	12
Other comprehensive (loss) income	11				(5)	(5)	16
Shares-based compensation (in shares)		3,347,000
Shares-based compensation	32		32			32
Shares issued for acquisition (in shares)		37,580,000
Shares issued for acquisition	526		526			526
Shares repurchased and cancelled (in shares)		(21,453,000)
Shares repurchased and cancelled	(288)		(288)			(288)
Shares cancelled (in shares)		(508,000)
Shares cancelled	(6)		(6)			(6)
Acquisition of noncontrolling interest	(148)		3		(61)	(58)	(90)
Cristal acquisition	51						51
Ordinary share dividends	(27)			(27)		(27)
Balance, end of period (in shares) at Dec. 31, 2019		141,900,000
Ending Balance at Dec. 31, 2019	916	$ 1	1,846	(493)	(606)	748	168
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	995			969		969	26
Other comprehensive (loss) income	(20)				(4)	(4)	(16)
Shares-based compensation (in shares)		2,032,000
Shares-based compensation	30		30			30
Shares cancelled (in shares)		(375,000)
Shares cancelled	(3)		(3)			(3)
Acquisition of noncontrolling interest	(3)						(3)
Ordinary share dividends	(42)			(42)		(42)
Minority interest dividend	$ (2)						(2)
Balance, end of period (in shares) at Dec. 31, 2020	143,557,479	143,557,000
Ending Balance at Dec. 31, 2020	$ 1,871	$ 1	1,873	434	(610)	1,698	173
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	303			286		286	17
Other comprehensive (loss) income	(104)				(94)	(94)	(10)
Shares-based compensation (in shares)		2,844,000
Shares-based compensation	31		31			31
Shares cancelled (in shares)		(137,000)
Shares cancelled	$ (3)		(3)			(3)
Options exercised (in shares)	424,832	425,000
Options exercised	$ 8		8			8
Acquisition of noncontrolling interest (in shares)		7,246,000
Acquisition of noncontrolling interest	0	$ 1	158		(34)	125	(125)
Ordinary share dividends	$ (64)			(57)		(57)	(7)
Balance, end of period (in shares) at Dec. 31, 2021	153,934,677	153,935,000
Ending Balance at Dec. 31, 2021	$ 2,042	$ 2	$ 2,067	$ 663	$ (738)	$ 1,994	$ 48

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Ordinary share dividends (in dollars per share)	$ 0.36	$ 0.28	$ 0.18
Measurement period adjustment related to Cristal acquisition	$ 0	$ (3)	$ (148)

The Company

The Company	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Company	The Company Tronox Holdings plc (referred to herein as "Tronox", the "Company", "we", "us", or "our") operates titanium-bearing mineral sand mines and beneficiation operations in Australia, South Africa and Brazil to produce feedstock materials that can be processed into TiO 2 for pigment, high purity titanium chemicals, including titanium tetrachloride, and Ultrafine© titanium dioxide used in certain specialty applications. It is our long-term strategic goal to be vertically integrated and consume all of our feedstock materials in our own nine TiO 2 pigment facilities which we operate in the United States, Australia, Brazil, UK, France, the Netherlands, China and the Kingdom of Saudi Arabia (“KSA”). We believe that vertical integration is the best way to achieve our ultimate goal of delivering low cost, high-quality pigment to our coatings and other TiO 2 customers throughout the world. The mining, beneficiation and smelting of titanium bearing mineral sands creates meaningful quantities of zircon and pig iron, which we also supply to customers around the world. We are a public limited company listed on the New York Stock Exchange and are registered under the laws of England and Wales. Basis of Presentation We are considered a domestic company in the United Kingdom and, as such, are required to comply with filing requirements in the United Kingdom. Additionally, we are not considered a “foreign private issuer” in the U.S.; therefore, we are required to comply with the reporting and other requirements imposed by the U.S. securities law on U.S. domestic issuers, which, among other things, requires reporting under accounting principles generally accepted in the United States of America (“U.S. GAAP”). The consolidated financial statements included in this Form 10-K are prepared in conformity with U.S. GAAP. Our consolidated financial statements include the accounts of all majority-owned subsidiary companies. All intercompany balances and transactions have been eliminated in consolidation. Certain prior period amounts have been reclassified to conform to the manner and presentation in the current period. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. It is at least reasonably possible that the effect on the financial statements of a change in estimate due to one or more future confirming events could have a material effect on the financial statements.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Foreign Currency The U.S. dollar is our reporting currency for our consolidated financial statements in U.S. GAAP. We determine the functional currency of each subsidiary based on a number of factors, including the predominant currency for revenues, expenditures and borrowings. Adjustments from the remeasurement of non-functional currency monetary assets and liabilities are recorded in “Other income, net” in the Consolidated Statements of Operations. When a subsidiary’s functional currency is not the U.S. dollar, translation adjustments resulting from translating the functional currency financial statements into U.S. dollar equivalents are recorded in “Accumulated other comprehensive loss” in the Consolidated Balance Sheets. Translation adjustments on intercompany foreign currency receivables and payables that are not expected to be settled in the foreseeable future are reported in the same manner as translation adjustments. Revenue Recognition We recognize revenue at a point in time when the customer obtains control of the promised products. For most transactions this occurs when products are shipped from our manufacturing facilities or at a later point when control of the products transfers to the customer at a specified destination or time. All amounts billed to a customer in a sales transaction related to shipping and handling represent revenues earned and are reported as “Net sales” in the Consolidated Statements of Operations. Accruals are made for sales returns, rebates and other allowances, which are recorded in “Net sales” in the Consolidated Statements of Operations and are based on our historical experience and current business conditions. Additionally, we have elected the practical expedient to exclude sales taxes and similar taxes that we collect from customers on behalf of government authorities from the revenue transaction price. See Note 5. Cost of Goods Sold Cost of goods sold includes costs for purchasing, receiving, manufacturing, and distributing products, including raw materials, energy, labor, depreciation, depletion, shipping and handling, freight, warehousing, and other production costs. Research and Development Research and development costs, included in “Selling, general and administrative expenses” in the Consolidated Statements of Operations comprised of salaries, building costs, utilities, administrative expenses, third party research, and allocations of corporate costs, were $13 million, $12 million, and $17 million during 2021, 2020, and 2019, respectively, and were expensed as incurred. Selling, General and Administrative Expenses Selling, general and administrative expenses include costs related to marketing, research and development, agent commissions, and legal and administrative functions such as corporate management, human resources, information technology, investor relations, accounting, treasury, and tax compliance. Income Taxes We use the asset and liability method of accounting for income taxes. The estimation of the amounts of income taxes involves the interpretation of complex tax laws and regulations and how foreign taxes affect domestic taxes, as well as the analysis of the realizability of deferred tax assets, tax audit findings, and uncertain tax positions. Deferred tax assets and liabilities are determined based on temporary differences between the financial reporting and tax bases of assets and liabilities using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. A valuation allowance is provided against a deferred tax asset when it is more likely than not that all or some portion of the deferred tax asset will not be realized. We periodically assess the likelihood that we will be able to recover our deferred tax assets and reflect any changes in our estimates in the valuation allowance, with a corresponding adjustment to earnings or other comprehensive income (loss), as appropriate. All available positive and negative evidence is weighted to determine whether a valuation allowance should be recorded. The amount of income taxes we pay is subject to ongoing audits by federal, state, and foreign tax authorities, which may result in proposed assessments. Our estimate of the potential outcome for any uncertain tax issue is highly judgmental. We assess our income tax positions, and record tax benefits for all years subject to examination based upon our evaluation of the facts, circumstances, and information available at the reporting date. For those tax positions for which it is more likely than not that a tax benefit will be sustained, we record the amount that has a greater than 50% likelihood of being realized upon settlement with a taxing authority that has full knowledge of all relevant information. Interest and penalties are accrued as part of tax expense, where applicable. If we do not believe that it is more likely than not that a tax benefit will be sustained, no tax benefit is recognized. See Note 8. Earnings per Share Basic and diluted earnings per share are calculated using the two-class method. Under the two-class method, earnings used to determine basic earnings per share are reduced by an amount allocated to participating securities. Participating securities include restricted shares issued under the Tronox Management Equity Incentive Plan (the “MEIP”) (see Note 22), which contains non-forfeitable dividend rights. Our unexercised options and unvested restricted share units do not contain non-forfeitable rights to dividends and, as such, are not considered in the calculation of basic earnings per share. Our unvested restricted shares do not have a contractual obligation to share in losses; therefore, when we record a net loss, none of the loss is allocated to participating securities. Consequently, in periods of net loss, the two-class method does not have an effect on basic loss per share. Diluted earnings per share is calculated by dividing net earnings allocable to ordinary shares by the weighted-average number of ordinary shares outstanding for the period, as adjusted for the potential dilutive effect of non-participating restricted share units and options. The options are included in the calculation of diluted earnings per ordinary share utilizing the treasury stock method. See Note 9. Fair Value Measurement We measure fair value on a recurring basis utilizing valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs, to the extent possible, and consider counterparty credit risk in our assessment of fair value. The fair value hierarchy is as follows: • Level 1 – Quoted prices in active markets for identical assets and liabilities; • Level 2 – Quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active or other inputs that are observable or can be corroborated by observable market data; and, • Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets and liabilities See Note 17. Cash and Cash Equivalents We consider all investments with original maturities of three months or less to be cash equivalents. We maintain cash and cash equivalents in bank deposit and money market accounts that may exceed federally insured limits. The financial institutions where our cash and cash equivalents are held are generally highly rated and geographically dispersed, and we have a policy to limit the amount of credit exposure with any one institution. We have not experienced any losses in such accounts and believe we are not exposed to significant credit risk. At December 31, 2021, we had restricted cash of $4 million comprised of $3 million in Australia related to outstanding performance bonds and $1 million in Saudi Arabia related to vendor supply agreement guarantees. At December 31, 2020, we had restricted cash of $29 million comprised of $18 million in Europe related to the termination fee associated with the TTI acquisition, $10 million in Australia related to outstanding performance bonds and $1 million in Saudi Arabia related to vendor supply agreement guarantees. Accounts Receivable, net of allowance for credit losses We perform credit evaluations of our customers, and take actions deemed appropriate to mitigate credit risk. Only in certain specific occasions do we require collateral in the form of bank or parent company guarantees or guarantee payments. We maintain allowances for potential credit losses based on specific customer review and current financial conditions. Inventories, net Pigment inventories are stated at the lower of actual cost and net realizable value, net of allowances for obsolete and slow-moving inventory. The cost of inventories is determined using the first-in, first-out method. Carrying values include material costs, labor, and associated indirect manufacturing expenses. Costs for materials and supplies, excluding titanium ore, are determined by average cost to acquire. Feedstock and co-products inventories including titanium ore are stated at the lower of the weighted-average cost of production or market. Inventory costs include those costs directly attributable to products, including all manufacturing overhead but excluding distribution costs. Raw materials are carried at actual cost. We review the cost of our inventory in comparison to its net realizable value. We also periodically review our inventory for obsolescence. In either case, we record any write-down equal to the difference between the cost of inventory and its estimated net realizable value based on assumptions about alternative uses, market conditions and other factors. Inventories expected to be sold or consumed within twelve months after the balance sheet date are classified as current assets and all other inventories are classified as non-current assets. See Note 10. Long Lived Assets Property, plant and equipment, net is stated at cost less accumulated depreciation, and is depreciated over its estimated useful life using the straight-line method as follows: Land improvements 10 — 20 years Buildings 10 — 40 years Machinery and equipment 3 — 25 years Furniture and fixtures 10 years Maintenance and repairs are expensed as incurred, except for costs of replacements or renewals that improve or extend the lives of existing properties, which are capitalized. Upon retirement or sale, the cost and related accumulated depreciation are removed from the respective account, and any resulting gain or loss is included in “Cost of goods sold” or “Selling, general, and administrative expenses” in the Consolidated Statements of Operations. See Note 11. We capitalize costs associated with our asset retirement obligations which are generally included in machinery and equipment. See Note 19. We capitalize interest costs on major projects that require an extended period of time to complete. See Note 15. Mineral property acquisition costs are capitalized as tangible assets when management determines that probable future benefits consisting of a contribution to future cash inflows have been identified and adequate financial resources are available or are expected to be available as required to meet the terms of property acquisition and anticipated exploration and development expenditures. Mineral leaseholds are depleted over their useful lives as determined under the units of production method. Mineral property exploration costs are expensed as incurred. When it has been determined that a mineral property can be economically developed as a result of establishing proven and probable reserves, the costs incurred to develop such property through the commencement of production are capitalized. See Note 12. Intangible assets are stated at cost less accumulated amortization and are amortized on a straight-line basis over their estimated useful lives, which generally range from 3 to 20 years. See Note 13. We evaluate the recoverability of the carrying value of long-lived assets that are held and used whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Under such circumstances, we assess whether the projected undiscounted cash flows of our long-lived assets are sufficient to recover the carrying amount of the asset group being assessed. If the undiscounted projected cash flows are not sufficient, we calculate the impairment amount by discounting the projected cash flows using our weighted-average cost of capital. For assets that satisfy the criteria to be classified as held for sale, an impairment loss, if any, is recognized to the extent the carrying amount exceeds fair value, less cost to sell. The amount of the impairment of long-lived assets is written off against earnings in the period in which the impairment is determined. Business Acquisitions Business acquisitions are accounted for using the acquisition method under Accounting Standards Codification (“ASC”) 805, Business Combinations (“ASC 805”), which requires recording assets acquired and liabilities assumed at fair value as of the acquisition date. Under the acquisition method of accounting, each tangible and separately identifiable intangible asset acquired and liabilities assumed is recorded based on their preliminary estimated fair values on the acquisition date. The initial valuations are derived from estimated fair value assessments and assumptions used by management. Acquisition related costs are expensed as incurred and are included in “Selling, general and administrative expenses” in the Consolidated Statements of Operations. Leases We determine if a contract is or contains a lease at inception of the contract. Our leases are primarily operating leases. Leased assets primarily include office buildings, rail cars and motor vehicles, forklifts, and other machinery and equipment. Our leases primarily have fixed lease payments, with real estate leases typically requiring additional payments for real estate taxes and occupancy-related costs. Certain of our leases also have variable lease payments. Variable lease payments that depend on an index or a rate (such as the Consumer Price Index) are included in our initial measurement of the lease right of use assets and lease liabilities. Variable lease payments that are not index or rate based (such as variable payments based on our performance or use of the leased assets) are recorded as expenses when incurred and excluded from the measurement of right of use assets and lease liabilities. Our leases typically have initial lease terms ranging from 1 to 25 years. Some of our lease agreements include options to renew, extend or early terminate the leases. Lease term is the non-cancellable period of a lease, adjusted by the period covered by an option to extend or terminate the lease if we are reasonably certain to exercise (or not exercise) that option. Our operating leases typically do not contain purchase options we expect to exercise, residual value guarantees or other material covenants. Operating leases are recorded under “Lease right of use assets”, “Short-term lease liabilities”, and “Long-term lease liabilities” on the Consolidated Balance Sheets. Finance leases are recorded under “Property, plant and equipment net”, “Long-term debt due within one year”, and “Long-term debt” on the Consolidated Balance Sheets. Operating lease right of use ("ROU") assets and lease liabilities are initially recorded at the present value of the future minimum lease payments over the lease term at the commencement date. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the lease commencement date in determining the present value of future payments. Lease payments for the initial measurement of lease ROU assets and lease liabilities include fixed payments and variable payments that depend on an index or a rate. Variable lease payments that are not index or rate based are recorded as expenses when incurred. Operating lease ROU assets are amortized on a straight-line basis over the period of the lease. Finance lease ROU assets are amortized on a straight-line basis over the shorter of their estimated useful lives of leased asset and the lease terms. See Note 18. Long-term Debt Long-term debt is stated net of unamortized original issue premium or discount. Premiums or discounts are amortized using the effective interest method with amortization expense recorded in “Interest and debt expense, net” in the Consolidated Statements of Operations. Deferred debt issuance costs related to a recognized debt liability are presented in the Consolidated Balance Sheets as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts and are amortized using the effective interest method with amortization expense recorded in “Interest and debt expense, net” in the Consolidated Statements of Operations. See Note 15. Asset Retirement Obligations Asset retirement obligations are recorded at their estimated fair value, and accretion expense is recognized over time as the discounted liability is accreted to its expected settlement value. Fair value is measured using expected future cash outflows discounted at our credit-adjusted risk-free interest rate, which are considered Level 3 inputs. We classify accretion expense related to asset retirement obligations as a production cost, which is included in “Cost of goods sold” in the Consolidated Statements of Operations. See Note 19. Environmental Remediation and Other Contingencies We record an undiscounted liability when any of the following occur: 1) a claim or assessment has been asserted, 2) a litigation has commenced, or 3) based on available information, it is probable that a claim or an assessment will be asserted or a litigation will commence; and in addition, the outcome is expected to be unfavorable to us and the associated costs can be reasonably estimated. See Note 20. Self-Insurance We are self-insured for certain levels of general and vehicle liability, property, workers’ compensation and health care coverage. The cost of these self-insurance programs is accrued based upon estimated fully developed settlements for known and anticipated claims. Any resulting adjustments to previously recorded reserves are reflected in current operating results. We do not accrue for general or unspecific business risks. Share-based Compensation Equity Restricted Share and Restricted Share Unit Awards — The fair value of equity instruments is measured based on the share price on the grant date and is recognized over the vesting period. These awards contain service, market, and/or performance conditions. For awards containing only a service or a market condition, we have elected to recognize compensation costs using the straight-line method over the requisite service period for the entire award. For awards containing a market condition, the fair value of the award is measured using the Monte Carlo simulation under a lattice model approach. For awards containing a performance condition, the fair value is the grant date close price and compensation expense is not recognized until we conclude that it is probable that the performance condition will be met. We reassess the probability at least quarterly. See Note 22. Defined Benefit Pension and Postretirement Benefit Plans We recognize the funded status of our defined benefit pension plans and postretirement benefit plans in the Consolidated Balance Sheets. The funded status is measured as the difference between the fair value of plan assets and the benefit obligation at the measurement date. The benefit obligation for the defined benefit plans is the projected benefit obligation (PBO), which represents the actuarial present value of benefits expected to be paid upon retirement based on employee services already rendered and estimated future compensation levels. The benefit obligation for our postretirement benefit plans is the accumulated postretirement benefit obligation (APBO), which represents the actuarial present value of postretirement benefits attributed to employee services already rendered. The fair value of plan assets related to our defined benefit plan represents the current market value of assets held in a trust fund, which is established for the sole benefit of plan participants. If the fair value of plan assets exceeds the benefit obligation, the plan is overfunded, and the excess is recorded as a prepaid pension asset. On the other hand, if the benefit obligation exceeds the fair value of plan assets, the plan is underfunded, and the deficit is recorded as pension and postretirement healthcare benefits obligation in the Consolidated Balance Sheet. The portion of the pension and postretirement healthcare obligations payable within the next 12 months is recorded in accrued liabilities in the Consolidated Balance Sheet. Net periodic pension and postretirement benefit cost represents the aggregation of service cost, interest cost, expected return on plan assets, amortization of prior service costs or credits and actuarial gains or losses previously recognized as a component of OCI and it is recorded in the Consolidated Statement of Operations. Net periodic cost is recorded in cost of goods sold and selling, general and administrative expenses in the Consolidated Statement of Operations based on the employees’ respective functions. Actuarial gains or losses represents the effect of remeasurement on the benefit obligation principally driven by changes in the plan actuarial assumptions. Prior service costs or credits arise from plan amendments. The actuarial gains or losses and prior service costs or credits are initially recognized as a component of Other Comprehensive income in the Consolidated Statement of Comprehensive Income (Loss). Those gains or losses and prior service costs or credits are subsequently recognized as a component of net periodic cost. The measurement of benefit obligations and net periodic cost is based on estimates and assumptions approved by management. These valuations reflect the terms of the plans and use participant-specific information such as compensation, age and years of service, as well as certain assumptions, including estimates of discount rates, expected return on plan assets, rate of compensation increases and mortality rates. Defined Contribution Plans — We recognize our contribution as expense when they are due. The expense is recorded in cost of goods sold or selling, general and administrative expenses the Consolidated Statement of Operations based on the employees’ respective functions. Multiemployer Plan — We treat our multiemployer plan like a defined contribution plan. A pension plan to which two or more unrelated employers contribute is generally considered to be a multiemployer plan. As a defined contribution plan, we recognize the contribution for the period as a net benefit cost and any contributions due and unpaid as a liability. Recently Adopted Accounting Pronouncements In December 2019, the FASB issued ASU 2019-12, Income Taxes (“Topic 740”): Simplifying the Accounting for Income Taxes. The standard simplifies the accounting for income taxes by removing the exceptions to the incremental approach for intraperiod tax allocation, the requirement to recognize deferred tax liability for equity method investments, the ability not to recognize a deferred tax liability for a foreign subsidiary when a foreign equity method investment becomes a subsidiary, and the general methodology for calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year. This standard is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2020 with early adoption permitted. The adoption of this standard did not have a material impact on our consolidated financial statements. Recently Issued Accounting Pronouncements

Acquisitions and Related Divest

Acquisitions and Related Divestitures	12 Months Ended
	Dec. 31, 2021
Business Combination and Asset Acquisition [Abstract]
Acquisitions and Related Divestitures	Acquisitions and Related Divestitures TTI Acquisition In May 2020, the Company announced that it had signed a definitive agreement to acquire the Tizir Titanium and Iron ("TTI") business from Eramet S.A. for approximately $300 million in cash, plus 3% per annum which accrues for the period from January 1, 2020 until the transaction closes. TTI is a titanium smelter located in Tyssedal, Norway which upgrades ilmenite to produce high-grade titanium slag and high-purity pig iron with an annual capacity of approximately 230,000 tons and 90,000 tons, respectively. Pursuant to the definitive agreement, we were required to pay to Eramet S.A. a termination fee of $18 million if the agreement is terminated as a result of a failure to satisfy certain regulatory approvals prior to May 13, 2021. During the second quarter of 2020, upon signing of the definitive agreement to acquire TTI, we placed $18 million into an escrow account with a third-party financial institution. One of the conditions to the transaction was the obtaining of certain regulatory approvals that would include UK Competition and Markets Authority (“CMA”) approval by no later than a date specified in the definitive agreement (the “Condition Satisfaction Date”). On January 4, 2021, the Company received a decision from the CMA indicating that it intended to open a Phase 2 investigation into the Company’s proposed acquisition of TTI. In response to the concerns presented by the CMA, the Company submitted a remedy proposal, which the CMA rejected on January 18, 2021. As a result of this rejection, the Company concluded that it is not possible to complete the transaction by the Condition Satisfaction Date and elected to terminate the transaction. On January 19, 2021, pursuant to the definitive agreement the $18 million previously placed into escrow was released to Eramet in satisfaction of the termination fee, which was recorded in "Other income, net" in our Consolidated Statement of Operations. At December 31, 2020, the $18 million is reflected within "Restricted cash" on the Consolidated Balance Sheet. Cristal Acquisitions and Related Divestitures On April 10, 2019, we completed the acquisition of the TiO 2 business of Cristal for $1.675 billion of cash, plus 37,580,000 ordinary shares. The total acquisition price, including the value of the ordinary shares at $14 per share on the closing date of the Cristal Transaction, was approximately $2.2 billion. With the acquisition of our shares, an affiliate of Cristal became our largest shareholder. At December 31, 2021, Cristal International Holdings B.V. (formerly known as Cristal Inorganic Chemical Netherlands Cooperatief W.A.), a wholly-owned subsidiary of The National Titanium Dioxide Company Limited., continues to own 37,580,000 shares of Tronox, or a 24% ownership interest. The National Titanium Dioxide Company Limited is 79% owned by Tasnee. In order to obtain regulatory approval for the Cristal Transaction, the FTC required us to divest Cristal's North American TiO 2 business, which we sold to INEOS on May 1, 2019, for cash proceeds, net of transaction costs, of $701 million, inclusive of an amount for a working capital adjustment. The operating results of Cristal’s North American TiO 2 business from the acquisition date to the date of divestiture are included in a single caption entitled “Net Income (Loss) from discontinued operations, net of tax” in our Consolidated Statements of Operations. See Note 6 for further information on discontinued operations. In conjunction with the Cristal Transaction, we entered into a transition services agreement with Tasnee and certain of its affiliates under which we and the Tasnee entities will provide certain transition services to one another. See Note 24 for further details of the transition services agreement. In conjunction with the divestiture of Cristal's North American TiO 2 business to INEOS, we entered into a two-year transition services agreement with INEOS. Under the terms of the transition services agreement, INEOS agreed to provide services to Tronox for manufacturing, technology and innovation, information technology, finance, warehousing and human resources. Similarly, Tronox will provide services to INEOS for information technology, finance, product stewardship, warehousing and human resources. In addition, in order to obtain regulatory approval by the European Commission, we divested the 8120 paper laminate grade, supplied from our Botlek facility in the Netherlands, to Venator Materials PLC (“Venator”). The divestiture was completed on April 26, 2019. Under the terms of the divestiture, we will supply the 8120 grade product to Venator under a supply agreement for an initial term of 2 years, and extendable up to 3 years, to allow for the transfer of the manufacturing of the 8120 grade to Venator. Total cash consideration is 8 million Euros, of which 1 million Euros was paid at the closing, 3.5 million Euros (or approximately $3.9 million) was received during the second quarter of 2020 and 3.5 million Euros (approximately $4.2 million) was received in the second quarter of 2021. We recorded a charge of $19 million during the second quarter of 2019, in “Contract loss” in the Consolidated Statements of Operations, reflecting both the proceeds on sale and the estimated losses we expect to incur under the supply agreement with Venator. We funded the cash portion of the Cristal Transaction through existing cash, borrowings from our Wells Fargo Revolver, and restricted cash which had been borrowed under the Blocked Term Loan (as defined elsewhere herein) and which became available to us for the purpose of consummating the Cristal Transaction. See Note 15 for further details of the Cristal Transaction financing. Supplemental Pro Forma Financial Information The following unaudited pro forma information was prepared pursuant to the requirements of ASC 805 and give effect to the Cristal Transaction as if it had occurred on January 1, 2018. The unaudited pro forma financial information reflects certain adjustments related to the acquisition, such as: a. conforming the accounting policies of Cristal to those applied by Tronox; b. conversion to U.S. GAAP from IFRS for Cristal; c. the elimination of transactions between Tronox and Cristal; d. recording certain incremental expenses resulting from purchase accounting adjustments, such as inventory step-up amortization, depreciation, depletion and amortization expense in connection with fair value adjustments to property, plant and equipment, mineral leaseholds and intangible assets; e. recording the contract loss on the sale of the 8120 product line as a charge in the first quarter of 2018; f. recording all transaction costs incurred in the first quarter of 2018; g. recording the effect on interest expense related to borrowings in connection with the Cristal Transaction; and h. recording the related tax effects and the impacts to EPS for the shares issued in conjunction with the transaction. The unaudited pro forma financial information should not be relied upon as being indicative of the historical results that would have been obtained if the Cristal Transaction had actually occurred on that date, nor the results of operations in the future. In accordance with ASC 805, the supplemental pro forma results of operations for the year ended December 31, 2019, as if the Cristal Transaction had occurred on January 1, 2018, are as follows: Year Ended December 31, 2019 Net Sales $ 3,008 Net income from continuing operations attributable to Tronox Holdings plc $ 18

Restructuring Initiatives

Restructuring Initiatives	12 Months Ended
	Dec. 31, 2021
Restructuring and Related Activities [Abstract]
Restructuring Initiatives	Restructuring Initiatives In April 2019, we announced the completion of the Cristal Transaction. During the second quarter of 2019, as a result of the acquisition, we outlined a broad-based synergy savings program that is expected to reduce costs, simplify processes and focus the organization’s structure and resources on key growth initiatives. During the years ended December 31, 2020 and 2019, we recorded costs of $3 million and $22 million, respectively, in our Consolidated Statement of Operations relating to these initiatives. No material balances were recorded during the year ended December 31, 2021. The costs consisted of charges for employee-related costs, including severance. The liability balance for restructuring as of December 31, 2021, 2020 and 2019, which is recorded within “Accrued liabilities” in the Consolidated Balance Sheet, is as follows: Employee-Related Costs Balance, January 1, 2019 $ — Charges 22 Cash payments (12) Balance, December 31, 2019 $ 10 Charges 3 Cash payments (11) Balance, December 31, 2020 $ 2 Cash payments (1) Balance, December 31, 2021 $ 1

Revenue

Revenue	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Nature of Contracts and Performance Obligations We primarily generate revenue from selling TiO 2 pigment products and related co-products, primarily zircon and pig iron, to our customers. These products are used for the manufacture of paints, coatings, plastics, paper, and a wide range of other applications. We account for a contract with our customer when it has approval and commitment from both parties, the rights of the parties are identified, payment terms are identified, the contract has commercial substance, and collectability of consideration is probable. Our promise in a contract typically relates to the transferring of a product or multiple distinct products that are substantially the same and that have the same pattern of transfer, representing a single performance obligation within a contract. We have elected to account for shipping and handling activities that occur after control of the products has transferred to the customer as contract fulfillment activities, rather than a separate performance obligation. Amounts billed to a customer in a sales transaction related to shipping and handling activities continue to be reported as “Net sales” and related costs as “Cost of goods sold” in the Consolidated Statements of Operations. The duration of our contract period is one year or less. As such, we have elected to recognize incremental costs incurred to obtain contracts, which primarily consist of commissions paid to third-party sales agents, as “Selling, general and administrative expenses” in the Consolidated Statements of Operations. Furthermore, we have elected not to disclose the value of unsatisfied performance obligations at each period end, given the original expected duration of our contracts are one year or less. Transaction Price Revenue is measured as the amount of consideration that we expect to be entitled in exchange for transferring products to the customer. The transaction price typically consists of fixed cash consideration. We also offer various incentive programs to our customers, such as rebates, discounts, and other price adjustments that represent variable consideration. We estimate variable consideration and include such consideration amounts in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is resolved. Our estimates of variable consideration and determination of whether to include estimated amounts in the transaction price are based largely on an assessment of our anticipated performance and all information (historical, current and forecasted) that is reasonably available to us. We adjust our estimate of revenue at the earlier of when the amount of consideration we expect to receive changes or when the consideration becomes fixed. Sales returns rarely happen in our business; therefore, it is unlikely that a significant reversal of revenue will occur. Sales and similar taxes we collect on behalf of governmental authorities are excluded from the transaction price for the determination of revenue. The expected costs associated with product warranties continue to be recognized as expense when the products are sold. Customer payment terms and conditions vary by contract and customer, although the timing of revenue recognition typically does not differ from the timing of invoicing. Additionally, as we generally do not grant extended payment terms, we have determined that our contracts generally do not include a significant financing component. Revenue Recognition We recognize revenue at a point in time when the customer obtains control of the promised products. For most transactions this occurs when products are shipped from our manufacturing facilities or at a later point when control of the products transfers to the customer at a specified destination or time. Contract Balances Contract assets represent our rights to consideration in exchange for products that have transferred to a customer when the right is conditional on situations other than the passage of time. For products that we have transferred to our customers, our rights to the consideration are typically unconditional and only the passage of time is required before payments become due. These unconditional rights are recorded as accounts receivable. As of December 31, 2021, and December 31, 2020, we did not have material contract asset balances. Contract liabilities represent our obligations to transfer products to a customer for which we have received consideration from the customer. When a customer has poor credit worthiness, we may receive advance payment that is accounted for as deferred revenue. Deferred revenue is earned when control of the product transfers to the customer, which is typically within a short period of time from when we received the advanced payment. Contract liability balances as of December 31, 2021 and December 31, 2020 were $2 million and $4 million, respectively. Contract liability balances were reported as “Accrued liabilities” in the Consolidated Balance Sheets. All contract liabilities as of December 31, 2020 and 2019 were recognized as revenue in “Net sales” in the Consolidated Statements of Operations during the first quarter of 2021 and first quarter of 2020, respectively. Disaggregation of Revenue We operate under one operating and reportable segment, Tronox. See Note 25 for details. We disaggregate our revenue from contracts with customers by product type and geographic area. We believe this level of disaggregation appropriately depicts how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors and reflects how our business is managed. Net sales to external customers by geographic areas where our customers are located were as follows: Year Ended December 31, 2021 2020 2019 North America $ 743 $ 716 $ 696 South and Central America 252 181 164 Europe, Middle-East and Africa 1,398 1,013 954 Asia Pacific 1,179 848 828 Total net sales $ 3,572 $ 2,758 $ 2,642 The 2020 amounts by geographic area in table above have been corrected for an increase and decrease of $78 million to Asia Pacific and North America, respectively, as well as an increase and decrease of $134 million to Europe, Middle-East and Africa and South and Central America, respectively. Net sales from external customers for each similar type of product were as follows: Year Ended December 31, 2021 2020 2019 TiO 2 $ 2,793 $ 2,176 $ 2,049 Zircon 478 283 290 Feedstock and other products 301 299 303 Total net sales $ 3,572 $ 2,758 $ 2,642 Feedstock and other products mainly include pig iron, ilmenite, chloride ("CP") slag, TiCl 4 and other mining products. The nature, amount, timing and uncertainty of revenue and cash flows typically do not differ significantly among different products.

Discontinued Operations and Oth

Discontinued Operations and Other Disposition	12 Months Ended
	Dec. 31, 2021
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations and Other Disposition	Discontinued Operations and Other Disposition Discontinued Operations - 2019 As discussed in Note 3, the Company divested Cristal's North American TiO 2 business to INEOS on May 1, 2019, for cash proceeds, net of transaction costs, of $701 million, inclusive of an amount for a working capital adjustment. The operating results of Cristal’s North American TiO 2 business from the acquisition date to the date of divestiture are included in a single caption entitled “Net income (loss) from discontinued operations, net of tax” in our Consolidated Statements of Operations and is included in the table below. The following table presents a summary of the operations of Cristal’s North American TiO 2 business and Cristal Metals line items constituting the "Income from discontinued operations, net of tax" in our Consolidated Statements of Operations for the year ended December 31, 2019. There were no discontinued operations in 2021 and 2020. Year ended December 31, 2019 Net sales $ 41 Cost of goods sold 29 Gross profit 12 Selling, general and administrative expense and other expenses 5 Income before income taxes 7 Income tax provision 2 Income from discontinued operations, net of tax $ 5

Other Income, Net

Other Income, Net	12 Months Ended
	Dec. 31, 2021
Other Income and Expenses [Abstract]
Other Income, Net	Other Income, Net Other income, net is comprised of the following: Year Ended December 31, 2021 2020 2019 Net realized and unrealized foreign currency gains (losses) $ 16 $ 4 $ 5 Pension and postretirement benefit interest cost, expected return on assets and amortization of actuarial losses 5 1 (1) Pension and postretirement benefit settlement and curtailment gains (1) — 2 1 Insurance proceeds (2) — 11 — Breakage fee (Note 3) (3) (18) — — AMIC technical service support fee (Note 24) 8 5 — Other, net 1 3 (2) Total $ 12 $ 26 $ 3 _____________________ (1) 2020 and 2019 amounts are curtailment gains related to our former U.S. Pension Plan (acquired as part of the Cristal transaction). See Note 23. (2) 2020 amount represents reimbursement from claims related to the Ginkgo concentrator failure we inherited as a part of the Cristal Transaction. (3) 2021 amount represents the breakage fee associated with the termination of the TTI acquisition. See Note 3.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Our operations are conducted through various subsidiaries in a number of countries throughout the world. We have provided for income taxes based upon the tax laws and rates in the countries in which operations are conducted and income is earned. Income (loss) from continuing operations before income taxes is comprised of the following: Year Ended December 31, 2021 2020 2019 United Kingdom $ (16) $ (12) $ 56 International 390 126 (144) Income (loss) from continuing operations before income taxes $ 374 $ 114 $ (88) The income tax (provision) benefit is summarized below: Year Ended December 31, 2021 2020 2019 United Kingdom: Current $ (1) $ (1) $ — Deferred — (10) 11 International: Current (55) (17) (23) Deferred (15) 909 (2) Income tax (provision) benefit $ (71) $ 881 $ (14) The following table reconciles the applicable statutory income tax rates to our effective income tax rates for “Income tax (provision) benefit” as reflected in the Consolidated Statements of Operations. Year Ended December 31, 2021 2020 2019 Statutory tax rate 19 % 19 % 19 % Increases (decreases) resulting from: Tax rate differences 7 10 5 Disallowable expenditures 2 17 (29) Valuation allowances (27) (849) (44) Corporate reorganization 17 (96) — Tax rate changes 2 (8) 17 State and local taxes 1 5 (7) Prior year accruals (2) 131 24 Branch taxation — — (1) Withholding taxes 2 — (2) Tax credits (2) (2) 3 Deferred gross margin — — (4) Other, net — — 3 Effective tax rate 19 % (773) % (16) % Tronox Holdings plc, a U.K. public limited company, became the public parent during the three months ended March 31, 2019. Prior to that time, Tronox Limited, was the public parent, registered under the laws of the State of Western Australia, but managed and controlled in the U.K. The statutory tax rate in the U.K. at December 31, 2021, 2020 and 2019 was 19%. The effective tax rates in 2021, 2020 and 2019 are all influenced by a variety of factors, primarily income and losses in jurisdictions with valuation allowances, changes in tax rates, disallowable expenditures, prior year accruals, and rates different than the United Kingdom statutory rate of 19%. The 2021 rate is additionally impacted by the liquidation of an inactive Dutch subsidiary and the write-off of its historical NOL balances as part of our corporate reorganization. Both the 2021 and 2020 rates are additionally impacted by a corporate reorganization related to our Australian entities and the amendment of prior year returns in resolution of a tax audit which impacted prior year accruals (see below for further discussion regarding the audit agreement). These Australian impacts are fully offset by valuation allowances. The large negative effective tax rate for 2020 is caused by the release of valuation allowances for deferred tax assets in the U.S. and Brazil, partially offset by the recording of valuation allowances in Saudi Arabia and the U.K. The 2019 rate was additionally impacted by a benefit of $48 million due to the release of a valuation allowance for deferred tax assets associated with our operating subsidiary in the Netherlands. The Company reached an agreement with the Australian Tax Office ("ATO") during the year ended December 31, 2020 for the tax years 2016 through 2019 related to the companies operating in Australia acquired in the Cristal transaction, which were under examination by the ATO. Cash tax payments to be made pursuant to this agreement are not reflected in the above table due to the indemnification clause of the Cristal Transaction purchase contract. Refer to Note 24 for further information. As part of the agreement, $79 million in deferred tax assets related to Australian NOLs were lost. The change to deferred taxes is fully offset by a valuation allowance and results in no impact to the consolidated provision. The NOL adjustment from the ATO agreement is reflected in the "Prior year accruals" line of the effective tax rate table. Changes in our state apportionment factors and state statutory rate changes caused our overall effective state tax rates to change. Due to the large deferred tax asset created by the Anadarko litigation settlement in 2014, these state rate changes have a material impact on deferred taxes for 2020 and 2019. These are reflected within the "Tax rate changes" line of the effective tax rate table and is offset by a valuation allowance for 2019. During 2020 and 2019, tax law changes fully repealed the future Netherlands rate reduction, and this benefit is also reflected in the "Tax rate changes" line. Net deferred tax assets (liabilities) at December 31, 2021 and 2020 were comprised of the following: December 31, 2021 2020 Deferred tax assets: Net operating loss and other carryforwards $ 1,720 $ 1,788 Property, plant and equipment, net 107 153 Reserves for environmental remediation and restoration 43 46 Obligations for pension and other employee benefits 58 57 Investments 4 3 Grantor trusts 636 637 Inventories, net 8 8 Interest 214 232 Lease liabilities 23 21 Other accrued liabilities 3 6 Foreign exchange 9 1 Other 7 8 Total deferred tax assets 2,832 2,960 Valuation allowance associated with deferred tax assets (1,728) (1,826) Net deferred tax assets 1,104 1,134 Deferred tax liabilities: Inventories, net (5) (2) Property, plant and equipment, net (216) (226) Intangible assets, net (22) (30) Lease assets (24) (22) Foreign exchange (1) — Other (8) (10) Total deferred tax liabilities (276) (290) Net deferred tax asset $ 828 $ 844 Balance sheet classifications: Deferred tax assets — long-term $ 985 $ 1,020 Deferred tax liabilities — long-term $ (157) $ (176) Net deferred tax asset $ 828 $ 844 The net deferred tax assets reflected in the above table include deferred tax assets related to grantor trusts, which were established as Tronox Incorporated emerged from bankruptcy during 2011. The balances relate to the assets contributed to such grantor trusts by Tronox Incorporated and the proceeds from the resolution of previous litigation of $5.2 billion during 2014, which resulted in additional deferred tax assets of $2.0 billion. As the grantor trusts continue to spend funds received from the litigation and earn income from the investment of those funds, the U.S. net operating loss will increase or decrease. There was a decrease to our valuation allowance of $98 million during 2021, a decrease of $965 million in 2020, and an increase of $172 million in 2019. The table below sets forth the changes, by jurisdiction: December 31, 2021 2020 2019 United Kingdom $ (1) $ (1) $ (2) United States (19) (944) 54 Australia (43) (17) 89 The Netherlands (24) 2 — Saudi Arabia (11) 11 — Brazil — (14) 14 Switzerland — — 15 Belgium — (2) 2 Total (decrease) increase in valuation allowances $ (98) $ (965) $ 172 As part of the functions under business combination accounting pursuant to ASC 805 and deferred income taxes in accordance with ASC 740, the Company evaluated deferred tax attributes in each jurisdiction for application of a valuation allowance. Some operations acquired in the Cristal Transaction included a full or partial valuation allowance at the time of acquisition. Evidence provided to the Company that was maintained previously to support valuation allowances at acquisition was used along with considerations of any changes in operations and possible combinations with deferred tax attributes of the Company’s existing operations in each jurisdiction. It was determined that France would remove its valuation allowance so that jurisdiction is not shown in the table above, Australia and Brazil would increase from partial to full valuation allowances, and Switzerland and the United States would sustain full valuation allowances at acquisition. During the year ended December 31, 2021, operations in Saudi Arabia had a substantially positive improvement in its earnings. The Company's operations there not only turned from net losses to net income, but the amount of net income realized during 2021 and forecasted in the immediate future has been enough to overcome the losses sustained in prior years. A reversal of the valuation allowance in Saudi Arabia resulted in a non-cash deferred tax benefit of $8 million. This valuation allowance was established during the year ended December 31, 2020 against the net deferred tax assets in Saudi Arabia, and the addition of the valuation allowance in that period resulted in a non-cash deferred tax provision of $2 million. During the year ended December 31, 2020, we determined sufficient positive evidence existed to reverse a portion of the valuation allowance attributable to the deferred tax assets associated with our operations in the U.S. This reversal resulted in a non-cash deferred tax benefit of $909 million. Our analysis considered all positive and negative evidence, including (i) three years of cumulative income for our U.S. subsidiaries, (ii) our continuing and improved profitability over the last twelve months in this jurisdiction, (iii) estimates of continued profitability based on updates to our latest forecasts, (iv) changes in the factors that drove losses in the past, primarily interest expenses incurred in the U.S., and (v) risk that certain deferred tax assets may be subject to limitation under Section 382 of the Code. Based on this analysis, we concluded that it was more likely than not that our U.S. subsidiaries will be able to utilize all of their deferred tax assets with an indefinite life. A portion of the U.S. deferred tax assets are attributable to NOLs incurred in prior years which are subject to expiration in future years. Our analysis did not support that these limited-life NOLs would be utilized before their expiration, and it is against these deferred tax assets in the U.S. that the Company continues to carry a valuation allowance with a current estimated value of $1,026 million. During the year ended December 31, 2020, we also determined sufficient positive evidence existed to reverse the valuation allowance attributable to the deferred tax assets associated with our operations in Brazil. This reversal resulted in a non-cash deferred tax benefit of $8 million. Our analysis considered all positive and negative evidence, the most significant of which was the continuing and improved profitability of the Brazilian company subsequent to its acquisition in 2019 and estimates of continued profitability based on updates to our latest forecasts. Based on this analysis, we concluded that it is more likely than not that our Brazilian subsidiary will be able to utilize all of its deferred tax assets. During the year ended December 31, 2020, we established a valuation allowance against the net deferred tax assets in the United Kingdom. The addition of this valuation allowance resulted in a non-cash deferred tax provision of $10 million. There has been increased profitability in this jurisdiction after the Cristal Transaction; however, it has not yet been sufficient to overcome our cumulative historical losses. Forecasted changes to intercompany interest is recent negative evidence now impacting our analysis. The company expects continued profitability in this jurisdiction but no longer has objective support which can be heavily weighted in this determination. At December 31, 2021, we have full valuation allowances related to the total net deferred tax assets in Australia, Switzerland, and the United Kingdom, as we cannot objectively assert that these deferred tax assets are more likely than not to be realized. It is reasonably possible that a portion of these valuation allowances could be reversed within the next year due to increased book profitability levels. Future provisions for income taxes will include no tax benefits with respect to losses incurred and tax expense only to the extent of current tax payments until the valuation allowances are eliminated. Additionally, we have valuation allowances against specific tax assets in South Africa and the U.S. These conclusions were reached by the application of ASC 740, Income Taxes , and require that all available positive and negative evidence be weighted to determine whether a valuation allowance should be recorded. The more significant evidential matter in Australia, Switzerland, and the United Kingdom relates to cumulative book losses. The most significant evidential matter for South Africa relates to capital losses and assets that cannot be depleted or depreciated for tax purposes. An ownership change occurred during 2019 for the Cristal U.S. businesses as a result of the acquisition by the Company. These ownership changes resulted in a limitation under Sections 382 and 383 of the Internal Revenue Code related to the net operating losses of the Cristal U.S. businesses. The net limitations related to the ownership change resulted in a reduction of $69 million of the acquired U.S. loss carryforward, offset by corresponding reduction to a valuation allowance. The Company did not have any transactions during 2019 that triggered an ownership change under Sections 382 and 383 of the Code for the Tronox U.S. businesses. The deferred tax assets generated by tax loss carryforwards in Australia, Switzerland, and the United Kingdom have been fully offset by valuation allowances. In the United States, the deferred tax assets generated by tax loss carryforwards are partially offset by a valuation allowance to the extent they are subject to expiration. The expiration of these carryforwards at December 31, 2021 is shown below. The Australian, Saudi Arabian, French, Brazilian and United Kingdom tax loss carryforwards do not expire. 2022 2023 2024 2025 2026 2027 - 2040 Unlimited Total Tax Loss Carryforwards United Kingdom $ — $ — $ — $ — $ — $ — $ (51) $ (51) Australia — — — — — — (355) (355) The Netherlands — — — — — — (100) (100) France — — — — — — (214) (214) Saudi Arabia — — — — — — (23) (23) Switzerland (100) (80) — — — (1) — (181) U.S. Federal — — — — — (3,988) (334) (4,322) U.S. State (3) (28) (12) (41) (76) (4,027) (18) (4,205) Total tax loss carryforwards $ (103) $ (108) $ (12) $ (41) $ (76) $ (8,016) $ (1,095) $ (9,451) At December 31, 2021, Tronox Holdings plc had foreign subsidiaries with undistributed earnings. Although we would not be subject to income tax on these earnings, amounts totaling $353 million could be subject to withholding tax if distributed. We have made no provision for deferred taxes for Tronox Holdings plc related to these undistributed earnings because they are in the specific jurisdictions which we assert are indefinitely reinvested outside of the parents’ taxing jurisdictions. The noncurrent liabilities section of our Consolidated Balance Sheet does not reflect any reserves for uncertain tax positions for either 2021 or 2020. Our Chinese returns are closed through 2014. Our U.K. and Brazilian returns are closed through 2016. Our Australian, South African, and U.S. returns are closed through 2017. Our Netherlands and French returns are closed through 2018. We believe that we have made adequate provision for income taxes that may be payable with respect to years open for examination; however, the ultimate outcome is not presently known and, accordingly, additional provisions may be necessary and/or reclassifications of noncurrent tax liabilities to current may occur in the future.

Income (Loss) Per Share

Income (Loss) Per Share	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Income (Loss) Per Share	Income (Loss) Per Share The computation of basic and diluted income per share for the periods indicated is as follows: Year Ended December 31, 2021 2020 2019 Numerator – Basic and Diluted: Net income (loss) from continuing operations $ 303 $ 995 $ (102) Less: Net income from continuing operations attributable to noncontrolling interest 17 26 12 Undistributed net income (loss) from continuing operations attributable to Tronox Holdings plc 286 969 (114) Net income from discontinued operations available to ordinary shares — — 5 Net income (loss) available to ordinary shares $ 286 $ 969 $ (109) Denominator – Basic and Diluted: Weighted-average ordinary shares, basic (in thousands) 152,056 143,355 139,859 Weighted-average ordinary shares, diluted (in thousands) 157,945 144,906 139,859 Net income (loss) per Ordinary Share: Basic net income (loss) from continuing operations per ordinary share $ 1.88 $ 6.76 $ (0.81) Basic net income (loss) from discontinued operations per ordinary share — — 0.03 Basic net income (loss) per ordinary share $ 1.88 $ 6.76 $ (0.78) Diluted net income (loss) from continuing operations per ordinary share $ 1.81 $ 6.69 $ (0.81) Diluted net income (loss) from discontinued operations per ordinary share — — 0.03 Diluted net income (loss) per ordinary share $ 1.81 $ 6.69 $ (0.78) Net income per ordinary share amounts were calculated from exact, unrounded net loss and share information. Prior to January 2019, we had issued shares of restricted stock which were participating securities that did not have a contractual obligation to share in losses; therefore, when we have a net loss, none of the loss is allocated to these participating securities. The restricted stock vested on January 29, 2019. Consequently, for the years ended December 31, 2021, 2020 and 2019, the two-class method did not have an effect on our net loss per ordinary share calculation, and as such, dividends paid during these periods did not impact this calculation. In computing diluted net income per share under the two-class method, we considered potentially dilutive shares. Anti-dilutive shares not recognized in the diluted net income per share calculation for the years ended December 31, 2021, 2020 and 2019 were as follows: Shares 2021 2020 2019 Options 414,296 1,201,891 1,260,902 Restricted share units — 1,054,994 5,557,659

Inventories, net

Inventories, net	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Inventories, net	Inventories, net Inventories, net consisted of the following: December 31, 2021 2020 Raw materials $ 265 $ 170 Work-in-process 117 103 Finished goods, net 461 668 Materials and supplies, net 205 196 Inventories, net $ 1,048 $ 1,137 Materials and supplies, net consists of processing chemicals, maintenance supplies, and spare parts, which will be consumed directly and indirectly in the production of our products. During 2020, Tronox mining facilities sold feedstock to third party customers and as such, $110 million of feedstock was classified as "Finished goods, net" at December 31, 2020. During 2021, in line with our overall vertical integration strategy, there were no material feedstock sales to third party customers and as such, at December 31, 2021, $99 million of feedstock has been classified as "Raw materials". At December 31, 2021 and 2020, inventory obsolescence reserves were $43 million and $41 million, respectively. At December 31, 2021 and December 31, 2020, reserves for lower of cost and net realizable value were $11 million and $29 million, respectively.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment, net of accumulated depreciation, consisted of the following: December 31, 2021 2020 Land and land improvements $ 188 $ 189 Buildings 365 368 Machinery and equipment 2,234 2,197 Construction-in-progress 263 192 Other 73 86 Total 3,123 3,032 Less: accumulated depreciation (1,413) (1,273) Property, plant and equipment, net $ 1,710 $ 1,759 Substantially all the Property, plant and equipment, net is pledged as collateral for our debt. See Note 15. The table below summarizes depreciation expense related to property, plant and equipment for the periods presented, recorded in the specific line items in our Consolidated Statements of Operations: Year Ended December 31, 2021 2020 2019 Cost of goods sold $ 222 $ 233 $ 189 Selling, general and administrative expenses 5 5 5 Total $ 227 $ 238 $ 194

Mineral Leaseholds, net

Mineral Leaseholds, net	12 Months Ended
	Dec. 31, 2021
Extractive Industries [Abstract]
Mineral Leaseholds, net	Mineral Leaseholds, net Mineral leaseholds, net of accumulated depletion, consisted of the following: December 31, 2021 2020 Mineral leaseholds $ 1,306 $ 1,333 Less accumulated depletion (559) (530) Mineral leaseholds, net $ 747 $ 803

Intangible Assets, net

Intangible Assets, net	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets, net	Intangible Assets, net Intangible Assets, net of accumulated amortization, consisted of the following: December 31, 2021 December 31, 2020 Gross Cost Accumulated Amortization Net Carrying Amount Gross Cost Accumulated Amortization Net Carrying Amount Customer relationships $ 291 $ (211) $ 80 $ 291 $ (193) $ 98 TiO 2 technology 93 (31) 62 93 (24) 69 Internal-use software and other 120 (45) 75 73 (39) 34 Intangible assets, net $ 504 $ (287) $ 217 $ 457 $ (256) $ 201 As of December 31, 2021 and 2020, internal-use software included approximately $68 million and $19 million, respectively, of capitalized software costs which are not being amortized as the software is not ready for its intended use. The table below summarizes amortization expense related to intangible assets for the periods presented, recorded in the specific line items in our Consolidated Statements of Operations: Year Ended December 31, 2021 2020 2019 Cost of goods sold $ 2 $ 2 $ 2 Selling, general and administrative expenses 31 31 28 Total $ 33 $ 33 $ 30 Estimated future amortization expense related to intangible assets is $34 million for 2022, $34 million for 2023, $33 million for 2024, $33 million for 2025, $15 million for 2026 and $68 million thereafter.

Balance Sheet and Cash Flows Su

Balance Sheet and Cash Flows Supplemental Information	12 Months Ended
	Dec. 31, 2021
Payables and Accruals [Abstract]
Balance Sheet and Cash Flows Supplemental Information	Balance Sheet and Cash Flows Supplemental Information Accrued liabilities consisted of the following: December 31, 2021 2020 Employee-related costs and benefits $ 155 $ 133 Related party payables 1 7 Interest 20 21 Sales rebates 36 43 Restructuring 1 2 Taxes other than income taxes 18 16 Asset retirement obligations 10 9 Interest rate swaps 25 57 Other accrued liabilities 62 62 Accrued liabilities $ 328 $ 350 Additional supplemental cash flow information for the year ended and as of December 31, 2021, 2020 and 2019 is as follows: Year Ended December 31, Supplemental non cash information: 2021 2020 2019 Operating activities - MGT sales made to AMIC $ 4 $ — $ — Operating activities - Interest expense on MGT loan $ 1 $ — $ — Investing activities - Acquisition of MGT assets $ — $ 36 $ — Financing activities - debt assumed in the acquisition of MGT assets $ — $ 36 $ — Financing activities - Acquisition of noncontrolling interest $ 125 $ — $ — Financing activities - Repayment of MGT loan $ 3 $ — $ — December 31, 2021 December 31, 2020 December 31, 2019 Capital expenditures acquired but not yet paid $ 75 $ 37 $ 23

Debt

Debt	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Debt	Debt Long-term Debt Long-term debt, net of an unamortized discount and debt issuance costs, consisted of the following: Original Annual Maturity December 31, December 31, Prior Term Loan Facility, net of unamortized discount (1) $ 2,150 Variable 9/22/2024 $ — $ 1,607 New Term Loan Facility, net of unamortized discount (1) 1,300 Variable 3/11/2028 897 — Senior Notes due 2025 450 5.75 % 10/1/2025 — 450 Senior Notes due 2026 615 6.50 % 4/15/2026 — 615 Senior Notes due 2029 1,075 4.63 % 3/15/2029 1,075 — 6.5% Senior Secured Notes due 2025 500 6.50 % 5/1/2025 500 500 Prior Standard Bank Term Loan Facility (1) 222 Variable 3/25/2024 — 115 New Standard Bank Term Loan Facility (1) 98 Variable 11/11/2026 92 — Tikon Loan N/A Variable 5/23/2021 — 17 Australian Government Loan, net of unamortized discount N/A N/A 12/31/2036 1 1 MGT Loan (2) 36 Variable Refer below 33 36 Finance leases 14 15 Long-term debt 2,612 3,356 Less: Long-term debt due within one year (18) (58) Debt issuance costs (36) (35) Long-term debt, net $ 2,558 $ 3,263 (1) The average effective interest rate, including impacts of our interest rate swap, for the New Term Loan Facility was 5.1% for the year ended December 31, 2021. The average effective interest rate, including impacts of our interest rate swap, for the Prior Term Loan Facility was 4.6% for the year ended December 31, 2020. The average effective interest rate on the New Standard Bank Term Loan Facility was 7.3% for the year ended December 31, 2021. The average effective interest rate on the Prior Standard Bank Term Loan Facility was 7.8% for the year ended December 31, 2020. (2) The MGT loan is a related party debt facility. Average effective interest rate on the MGT loan was 3.1% d uring the year ended December 31, 2021. Refer below for further details. At December 31, 2021, the scheduled maturities of our long-term debt were as follows: Total Borrowings 2022 18 2023 18 2024 18 2025 518 2026 58 Thereafter 1,987 Total 2,617 Remaining accretion associated with the New Term Loan Facility and Australian Government Loan (5) Total borrowings 2,612 Prior Term Loan Facility and New Term Loan Facility On September 22, 2017, we entered into a new senior secured first lien term loan facility (the “Prior Term Loan Facility”) with the lenders party thereto and Bank of America, N.A., as administrative agent, with a maturity date of September 22, 2024. The Prior Term Loan Facility consisted of (i) a U.S. dollar term facility in an aggregate principal amount of $1.5 billion (the “Term Loans”) with our subsidiary, Tronox Finance LLC (“Tronox Finance”) as the borrower and (ii) a U.S. dollar term facility in an aggregate principal amount of $650 million (the “Blocked Term Loan”) with our unrestricted subsidiary, Tronox Blocked Borrower LLC (the “Blocked Borrower”) as the borrower, which Blocked Term Loan was funded into a blocked account. Upon consummation of the Cristal Transaction on April 10, 2019, the Blocked Borrower merged with and into Tronox Finance, and the Blocked Term Loan became available to Tronox Finance. The Prior Term Loan Facility bore interest at the “Applicable Rate” defined by reference to a grid-pricing matrix that relates to our First Lien Net Leverage Ratio and was issued net of an original issue discount of $11 million. On February 25, 2019, we entered into an amendment to both our Prior Term Loan Facility and Wells Fargo Revolver (as defined below). The purpose of each amendment was to make certain of our U.K. subsidiaries restricted subsidiaries, update the relevant indebtedness disclosure schedules to include certain inter-company indebtedness that had been in existence prior to the execution of each such facility, and waive an administrative omission under such facility. As a result of this amendment, the Company made two mandatory principal prepayments on the Prior Term Loan Facility as follows: 1) $95 million subsequent to the issuance of the Prior Standard Bank Term Loan Facility in March 2019 and 2) $100 million subsequent to the divestiture of the Cristal North American TiO 2 business. The Company accounted for both of these mandatory principal prepayments as debt modifications in accordance with ASC 470. Additionally, in December 2019, the Company made a voluntary prepayment of $100 million on the Prior Term Loan Facility. As a result of the voluntary prepayment, we recorded $1 million in “Loss on extinguishment of debt” within the Consolidated Statement of Operations for the year ended December 31, 2019. No prepayment penalties were required as a result of these principal prepayments. In December 2020, the Company made a voluntary prepayment of $200 million on the Prior Term Loan Facility. As a result of the voluntary prepayment, we recorded $2 million in "Loss on extinguishment of debt" within the Consolidated Statement of Operations for the year ended December 31, 2020. No prepayment penalties were required as a result of this principal prepayment. On March 11, 2021, Tronox Finance LLC entered into an amendment and restatement of its Prior Term Loan Facility pursuant to which, among other thing, we amended and restated the Prior Term Loan Facility with a new amended and restated first lien credit agreement dated as of September 22, 2017 (as amended through and including March 11, 2021, the "New Term Loan Facility") with a syndicate of lenders and HSBC Bank USA, National Association, as administrative agent and collateral agent. The New Term Loan Facility provides the Company with (a) a new seven-year New Term Loan Facility) in an aggregate principal amount of $1.3 billion and (b) new five-year cash flow revolving facility (the "New Revolving Facility") providing initial revolving commitments of $350 million and a sublimit of $125 million for letters of credit. The maturity date on the New Term Loan Facility and the New Revolving Facility is March 11, 2028 and March 11, 2026, respectively. The New Term Loan Facility shall bear interest at either the base rate or an adjusted LIBOR rate, in each case plus an applicable margin. The applicable margin in respect of the New Term Loan Facility is either 1.50% or 1.25%, for base rate loans, or 2.50% or 2.25%, for adjusted LIBOR rate loans, in each case determined based on, initially the passage of time, and thereafter upon the Company’s first lien net leverage ratio at the applicable time. Interest is payable on the New Term Loan Facility on the last business of each March, June, September and December. Based on our first lien net leverage ratio, the applicable margin under the New Term Loan Facility as of December 31, 2021 was LIBOR plus a margin of 2.25%. The New Revolving Facility shall bear interest at either the base rate or adjusted LIBOR rate, in each case plus an applicable margin. The applicable margin in respect of the New Revolving Facility is either 1.25%, 1.00% or 0.75% for base rate loans, or 2.25%, 2.00% or 1.75%, for adjusted LIBOR Rate Loans, in each case determined based on, initially the passage of time, and thereafter upon the Company’s first lien net leverage ratio at the applicable time. The New Credit Facility requires the Borrower to pay customary agency fees. In connection with entering into the New Term Loan Facility, the Company terminated all remaining commitments and repaid all obligations under its Prior Term Loan Facility and Wells Fargo Revolver (defined below). Additionally, we repaid $313 million of the principal under the Prior Term Loan Facility with cash on hand. Commencing June 30, 2021, the New Revolving Facility contains a springing financial covenant when a loan amount is drawn exceeding 35% of the New Revolving Facility. In this instance, the first lien net leverage ratio shall not exceed 4.75x at quarter end testing period. As a result of this transaction in accordance with ASC 470, we recognized approximately $4 million in "Loss on Extinguishment of Debt" recorded in the Consolidated Statement of Operations for the year ended December 31, 2021. As of December 31, 2021, there is no outstanding revolving credit loans under the New Revolving Facility, excluding $21 million of issued and undrawn letters of credit under the New Revolving Facility. Debt issuance costs associated with the New Revolving Facility of $2 million were included in “Other long-term assets” in the Consolidated Balance Sheets at December 31, 2021 and are being amortized over the life of the New Revolving Facility. Additionally, during the year ended December 31, 2021, the Company made several voluntary prepayments totaling $398 million on the New Term Loan Facility. As a result, we recognized approximately $9 million in "Loss on Extinguishment of Debt" recorded in the Consolidated Statement of Operations for the year ended December 31, 2021. Senior Notes due 2025 On September 22, 2017, Tronox Finance plc, issued 5.75% senior notes due 2025 for an aggregate principal amount of $450 million (the “Senior Notes due 2025”), which notes were issued under an indenture dated September 22, 2017 (the “2025 Indenture”). The 2025 Indenture and the Senior Notes due 2025 provided among other things, that the Senior Notes due 2025 were senior unsecured obligations of Tronox Finance plc and were guaranteed on a senior and unsecured basis by us and certain of our other subsidiaries. The Senior Notes due 2025 were not registered under the Securities Act, and were not offered or sold in the U.S. absent registration or an applicable exemption from registration requirements. Interest was payable on April 1 and October 1 of each year beginning on April 1, 2018 until their maturity date of October 1, 2025. The terms of the 2025 Indenture, among other things, limited, in certain circumstances, the ability of us and certain of our subsidiaries to: incur secured indebtedness, engage in certain sale-leaseback transactions and merge, consolidate or sell substantially all of our assets. The terms of the 2025 Indenture also included certain limitations on our non-guarantor subsidiaries incurring indebtedness. During the year ended December 31, 2021, we paid the outstanding balance of $450 million on the Senior Notes due 2025 as a result of the issuance of the Senior Notes due 2029 as defined and discussed below. Senior Notes due 2026 On April 6, 2018, Tronox Incorporated issued 6.5% Senior Notes due 2026 for an aggregate principal amount of $615 million (“Senior Notes due 2026”). The 2026 Indenture and the Senior Notes due 2026 provided, among other things, that the Senior Notes due 2026 were senior unsecured obligations of Tronox Incorporated and were guaranteed on a senior and unsecured basis by us and certain of our other subsidiaries. The Senior Notes due 2026 were not registered under the Securities Act and were not offered or sold in the U.S. absent registration or an applicable exemption from registration requirements. Interest was payable on April 15 and October 15 of each year beginning on October 15, 2018 until their maturity date of April 15, 2026. The terms of the 2026 Indenture, among other things, limited, in certain circumstances, our and certain of our subsidiaries ability to: incur secured indebtedness; engage in certain sale-leaseback transactions; and merge, consolidate or sell substantially all of our assets. The terms of the 2026 Indenture also included certain limitations on our non-guarantor subsidiaries incurring indebtedness. The proceeds of the offering were used to fund the redemption of our Senior Notes due 2022. During the year ended December 31, 2021, we paid the outstanding balance of $615 million on the Senior Notes due 2026 as a result of the issuance of the Senior Notes due 2029 as defined and discussed below. Senior Notes due 2029 On March 15, 2021, Tronox Incorporated closed an offering of $1,075 million aggregate principal amount of its 4.625% senior notes due 2029 (the "Senior Notes due 2029"). The notes were offered at par and issued under an indenture dated as of March 15, 2021 among the Company and certain of the Company's restricted subsidiaries as guarantors and Wilmington Trust, National Association. The Senior Notes due 2029 provide, among other thing, that the Senior Notes due 2029 are guaranteed by the Company and certain of the Company's restricted subsidiaries, subject to certain exceptions. The Senior Notes due 2029 and related guarantees are the senior obligations of the Company and the guarantors. The Senior Notes due 2029 have not been registered under the Securities Act, or any state securities laws, and may not be offered or sold in the United States absent registration requirements. The terms of the indenture, among other things, limit, in certain circumstances, the ability of the Company and its restricted subsidiaries to: incur secured indebtedness, incur indebtedness at a non-guarantor subsidiary, engage in certain sale-leaseback transactions and merge, consolidate or sell substantially all of their assets. Interest is payable on the Senior Notes due 2029 on March 15 and September 15 of each year beginning on September 15, 2021 until their maturity date of March 15, 2029. During the year ended December 31, 2021, the Company repaid the outstanding principal balance of $615 million and $450 million on its Senior Notes due 2026 and its Senior Notes due 2025, respectively. As a result of this transaction, we recorded $52 million of debt extinguishment costs, including call premiums of $21 million and $19 million on the Senior Notes due 2026 and Senior Notes due 2025, respectively, in "Loss on Extinguishment of Debt" on the Consolidated Statement of Operations for the year ended December 31, 2021. 6.5% Senior Secured Notes due 2025 On May 1, 2020, Tronox Incorporated, a wholly-owned indirect subsidiary of the Company, issued 6.5% senior secured notes due 2025 for an aggregate principal amount of $500 million (the "6.5% Senior Secured Notes due 2025"), which were issued under an indenture dated May 1, 2020. A portion of the proceeds of this debt offering was utilized to repay the $200 million of the Company's outstanding borrowings under its Wells Fargo, Standard Bank, and Emirates revolvers which was originally borrowed during the first quarter of 2020 (as discussed below). Prior Standard Bank Term Loan Facility On March 25, 2019, our South African subsidiaries, Tronox KZN Sands Proprietary Limited and Tronox Mineral Sands Proprietary Limited, entered into the Prior Standard Bank Term Loan Facility with a maturity date of March 25, 2024. The Term Loan Facility consisted of (i) an aggregate principal amount of R2.6 billion (“Amortizing Loan”, approximately $163 million at December 31, 2021 exchange rate) the principal of which was to be paid back at 5 percent per quarter over the five The Amortizing Loan bore interest at JIBAR plus 260 basis points when net leverage of the South African subsidiaries was less than 1.5 and JIBAR plus 285 points when net leverage was greater than 1.5. During the year ended December 31, 2021, we made several voluntary prepayments totaling R1,040 million (approximately $69 million) on the Prior Standard Bank Term Loan Facility. No prepayment penalties were required as a result of this principal prepayment. Additionally, during the year ended December 31, 2021, we repaid the remaining outstanding balance of R390 million (approximately $26 million) of the Prior Standard Bank Term Loan Facility and entered into an amendment and restatement with Standard Bank as is discussed below. New Standard Bank Term Loan Facility and Revolving Credit Facility On October 1, 2021, Tronox Minerals Sands Proprietary Limited, a wholly-owned subsidiary of the Company, entered into an amendment and restatement of a new credit facility with Standard Bank. The new credit facility provides the Company with (a) a new five-year term loan facility in an aggregate principal amount of R1.5 billion (approximately $98 million) (the "New Standard Bank Term Loan Facility") and (b) a new three-year revolving credit facility (the "New Standard Bank Revolving Credit Facility") providing initial revolving commitments of R1.0 billion (approximately $63 million at December 31, 2021 exchange rate). The maturity date on the New Standard Bank Term Loan Facility and the New Standard Bank Revolving Credit Facility is November 11, 2026 and October 1, 2024, respectively. The New Standard Bank Term Loan Facility has a delayed draw feature up to thirty business days from the effective date of the executed credit agreement. Mandatory capital repayments of R37.5 million (approximately $2 million at December 31, 2021 exchange rate) are scheduled quarterly with the first mandatory repayment starting in December 2021. Both the New Standard Bank Term Loan Facility and the New Standard Bank Revolving Credit Facility shall bear interest at an adjusted JIBAR rate plus an applicable margin. The applicable margin on the New Standard Bank Term Loan Facility is 2.35%. The applicable margin on the New Standard Bank Revolving Credit Facility is based upon average credit utilization during any interest period. If the revolving credit facility utilization is less than 33%, less than 66% but greater than 33%, or greater than 66%, the applicable margin is 2.10%, 2.25%, and 2.40%, respectively. The New Standard Bank Revolving Credit Facility requires the borrower to pay customary agency fees. Interest is payable on the New Standard Bank Term Loan Facility on each of March 31, June 30, September 30 and December 31, and the final maturity date pursuant to the agreement. Interest is payable on the New Standard Bank Revolving Credit Facility on the last day of the applicable interest period pursuant to the agreement. Pursuant to the credit agreement, on November 11, 2021, the Company drew down the total outstanding principal balance of R1.5 billion (approximately $98 million) on the New Standard Bank Term Loan Facility. Tikon Loan As part of the Cristal Transaction, we acquired a working capital debt agreement in China (“Tikon Loan”) that matured in April and May of 2021. The Tikon Loan bore interest based on an official lending basis rate per annum as announced and published by the People’s Bank of China plus a 7% premium. During the year ended December 31, 2021, we repaid the remaining outstanding principal balance of CNY 111 million (approximately $17 million). No prepayment penalties were required as a result of these principal prepayments. Australian Government Loan As part of the Cristal Transaction, we acquired an interest-free loan with the Australian government (“Australian Government Loan”) that matures in December 2022 subject to renewal every 5 years with final termination in December 2036. The loan balance due upon maturity is AUD 6 million (approximately $5 million at December 31, 2021). At December 31, 2021, the discounted value on the Australian Government Loan was approximately AUD 2 million (approximately $1 million at December 31, 2021 exchange rate). MGT Loan On December 17, 2020, we completed our agreement with Cristal to acquire certain assets co-located at our Yanbu facility which produce metal grade TiCl4 (“MGT”) in exchange for a $36 million note payable. Repayment of the note payable is based on a fixed U.S. dollar per metric ton quantity of MGT delivered by us to Advanced Metal Industries Cluster and Toho Titanium Metal Co. Ltd (ATTM) over time and therefore the ultimate maturity date is variable in nature. If ATTM fails to purchase MGT from us under certain contractually agreed upon conditions, then at our election we may terminate the MGT supply agreement with ATTM and will no longer owe any amount under the loan agreement with Cristal. We currently estimate the ultimate maturity to be between approximately five to seven years, subject to actual future MGT production levels. The interest rate is based on the Saudi Arabian Interbank Offered Rate (“SAIBOR”) plus a premium. As of December 31, 2021, the outstanding balance of the note payable was $33 million, of which $7 million is expected to be paid within the next twelve months (recorded within "Long-term debt due within one year" on our Consolidated Balance Sheet). Refer to Note 24 for further information on the MGT transaction. Short-term Debt Wells Fargo Revolver On September 22, 2017, we entered into a new global senior secured asset-based syndicated revolving credit facility with Wells Fargo Bank, N.A. (the “Wells Fargo Revolver”). The Wells Fargo Revolver which initially provided us with up to $550 million of revolving credit lines, with an $85 million sublimit for letters of credit, and had a maturity date of September 22, 2022. Our availability of revolving credit loans and letters of credit was subject to a borrowing base. Borrowings bore interest at our option, at either an adjusted London Interbank Offered Rate (“LIBOR”) plus an applicable margin that ranges from 1.25% to 1.75%, or a base rate, which was defined to mean the greatest of (a) the administrative agent’s prime rate, (b) the Federal funds effective rate plus 0.50% and (c) the adjusted LIBOR for a one month period plus 1.00% plus a margin that ranges from 0.25% to 0.75%, in each case, based on the average daily borrowing availability. On March 22, 2019, we entered into a consent and amendment to the Wells Fargo Revolver and an amendment to our Term Loan Facility. The purpose of each amendment was to, among other things, (i) permit the refinancing of certain existing indebtedness incurred by our South African subsidiaries, Tronox KZN Sands Proprietary Limited and Tronox Mineral Sands Proprietary Limited, and the proposed uses of proceeds thereof, and (ii) implement required provisions in both the Wells Fargo Revolver and Term Loan Facility necessary in connection with the establishment of Tronox Holdings plc. The Wells Fargo Revolver amendment also modified certain components of the borrowing base in order to increase the potential availability of credit. We also voluntarily reduced the revolving credit lines under the Wells Fargo Revolver from $550 million to $350 million. As a result of this modification, during the year ended December 31, 2019, we recorded a charge of $2 million in “Loss on extinguishment of debt” within the Consolidated Statement of Operations. As discussed above, the Wells Fargo Revolver was terminated during the year ended December 31, 2021 as a result of the New Revolving Facility. ABSA Revolving Credit Facility In connection with the Standard Bank Revolver (defined below) entered into on March 25, 2019, discussed below, the ABSA Revolver was terminated on March 26, 2019. As a result of the termination, during the year ended December 31, 2019, we recorded less than $1 million in “Loss on extinguishment of debt” within the Consolidated Statement of Operations. Standard Bank Credit Facility On March 25, 2019, our South African subsidiaries, Tronox KZN Sands Proprietary Limited and Tronox Mineral Sands Proprietary Limited, entered into the Standard Bank Credit Facility ("Standard Bank Revolver") for an amount up to R1 billion (approximately $63 million at December 31, 2021 exchange rate) maturing on March 25, 2022. The Standard Bank Credit Facility bore interest at the Johannesburg Interbank Average Rate (“JIBAR”) plus 260 basis points when net leverage for our South African subsidiaries (total combined debt outstanding under the Standard Bank Revolver and Standard Bank Term less cash and cash equivalents divided by the consolidated EBITDA) was less than 1.5 and JIBAR plus 285 basis points when net leverage was greater than 1.5. As discussed above, during the year ended December 31, 2021, the Standard Bank Credit Facility was amended and restated with the New Standard Bank Revolving Credit Facility. Emirates Revolver As part of the Cristal transaction, we acquired a revolving credit facility with Emirates NBD PJSC. In March 2021, the Company entered into an amendment to extend the maturity date of the Emirates Revolver from March 31, 2021 to March 31, 2022. Under the Emirates Revolver, we have the ability to borrow up to approximately $60 million. The revolver is secured by inventory and trade receivables of Tronox Pigment UK Ltd. Under the terms of the revolver, for U.S. dollar borrowings the interest rate is LIBOR plus 2.25% while the interest rate for Euro borrowings is Euribor plus 2.25%. There were no borrowings outstanding under this revolver at December 31, 2021. SABB Credit Facility On October 16, 2019, our KSA subsidiary entered into a short-term working capital facility with the Saudi British Bank (“SABB Facility”) for an amount up to SAR 70 million (approximately $19 million). The SABB Facility bears interest at the Saudi Inter Bank Offered Rate plus 180 basis points on outstanding balances. During October 2019, the Company borrowed SAR 50 million (or approximately $13 million) under the SABB Facility and subsequently repaid the outstanding balance in December 2019. Additionally, in March 2020, the Company borrowed SAR 50 million (or approximately $13 million) under the SABB Facility and subsequently repaid the outstanding balances. There is no borrowing outstanding under this facility at December 31, 2021. In December 2021, the Company extended the maturity date of the SABB Credit Facility from November 30, 2021 to November 30, 2022. Debt Covenants At December 31, 2021, we are in compliance with all financial covenants in our debt facilities. Interest and Debt Expense, Net Interest and debt expense, net in the Consolidated Statements of Operations consisted of the following: Year Ended December 31, 2021 2020 2019 Interest on debt $ 148 $ 174 $ 186 Amortization of deferred debt issuance costs and discounts on debt 11 10 8 Capitalized interest (7) (2) (1) Interest on capital leases and letters of credit and commitments 5 7 8 Total interest and debt expense, net $ 157 $ 189 $ 201 In connection with obtaining debt, we incurred debt issuance costs, which are being amortized through the respective maturity dates using the effective interest method for our long-term debt and on a straight-line basis for our New Revolving Facility. At December 31, 2021 and December 31, 2020, we had deferred debt issuance costs of $2 million and $2 million, respectively, related to the New Revolving Facility and Wells Fargo Revolver, respectively, which is recorded in “Other long-term assets” in the Consolidated Balance Sheets. At December 31, 2021 and December 31, 2020, we had debt discount of $5 million and $9 million, respectively, and debt issuance costs of $36 million and $35 million, respectively, primarily related to our term loan and senior notes, which were recorded as a direct reduction of the carrying value of the long-term debt in the Consolidated Balance Sheets.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Derivatives recorded on the Consolidated Balance Sheet: The following table is a summary of the fair value of derivatives outstanding at December 31, 2021 and 2020: Fair Value December 31, 2021 December 31, 2020 Assets(a) Accrued Liabilities Assets(a) Accrued Liabilities Derivatives Designated as Cash Flow Hedges Currency Contracts $ 3 $ 1 $ 58 $ — Interest Rate Swaps $ — $ 25 $ — $ 57 Natural Gas Hedges $ 1 $ — $ — $ — Total Hedges $ 4 $ 26 $ 58 $ 57 Derivatives Not Designated as Cash Flow Hedges Currency Contracts $ — $ — $ 7 $ — Total Derivatives $ 4 $ 26 $ 65 $ 57 (a) At December 31, 2021 and 2020, current assets of $4 million and $65 million, respectively, are recorded in prepaid and other current assets on the Consolidated Balance Sheet. Derivatives' Impact on the Consolidated Statement of Operations The following table summarizes the impact of the Company's derivatives on the Consolidated Statement of Operations: Amount of Pre-Tax Gain (Loss) Recognized in Earnings Revenue Cost of Goods Sold Other Income, net Revenue Cost of Goods Sold Other Income, net Revenue Cost of Goods Sold Other Income, net Year Ended December 31, 2021 Year Ended December 31, 2020 Year Ended December 31, 2019 Derivatives Not Designated as Hedging Instruments Currency Contracts $ — $ — $ 1 $ — $ — $ 4 $ — $ — $ 7 Derivatives Designated as Hedging Instruments Currency Contracts $ (3) $ 35 $ — $ (7) $ 3 $ — $ 5 $ 3 $ — Natural Gas $ — $ 3 $ — $ — $ (1) $ — $ — $ — $ — Total Derivatives $ (3) $ 38 $ 1 $ (7) $ 2 $ 4 $ 5 $ 3 $ 7 Interest Rate Risk During the second quarter of 2019, we entered into interest-rate swap agreements with an aggregate notional value of $750 million representing a portion of our Term Loan Facility, which effectively converts the variable rate to a fixed rate for that portion of the loan. The agreements expire in September 2024. The Company's objectives in using the interest-rate swap agreements are to add stability to interest expense and to manage its exposure to interest rate movements. These interest rate swaps have been designated as cash flow hedges and involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. There was no impact associated with the New Term Loan Facility as the hedge remained highly effective. Fair value gains or losses on these cash flow hedges are recorded in other comprehensive (loss) income and are subsequently reclassified into interest expense in the same periods during which the hedged transactions affect earnings. For the year ended December 31, 2021, 2020 and 2019, the amounts recorded in interest expense related to the interest-rate swap agreements were $16 million, $10 million and less than $1 million, respectively. At December 31, 2021 and December 31, 2020, the net unrealized loss was $25 million and $57 million, respectively, and was recorded in "Accumulated other comprehensive loss" on the Consolidated Balance Sheet. Foreign Currency Risk From time to time, we enter into foreign currency contracts used to hedge forecasted third party non-functional currency sales for our South African subsidiaries and forecasted non-functional currency cost of goods sold for our Australian subsidiaries. These foreign currency contracts are designated as cash flow hedges. Changes to the fair value of these foreign currency contracts are recorded as a component of other comprehensive (loss) income, if these contracts remain highly effective, and are recognized in net sales or costs of goods sold in the period in which the forecasted transaction affects earnings or are recognized in other income, net when the transactions are no longer probable of occurring. As of December 31, 2021, we had notional amounts of 443 million Australian dollars (approximately $322 million at December 31, 2021 exchange rate) that expire between January 25, 2022 and December 23, 2022 to reduce the exposure of our Australian subsidiaries’ cost of sales to fluctuations in currency rates. At December 31, 2021, we had notional amounts of 4.7 billion South African Rand (approximately $298 million at December 31, 2021 exchange rate) that expire between January 26, 2022 and December 28, 2022 to reduce the exposure of our South African subsidiaries' third party sales to fluctuations in currency rates. At December 31, 2021 and December 31, 2020, there was an unrealized net gain of $15 million and an unrealized net gain of $58 million, respectively, recorded in "Accumulated other comprehensive loss" on the Consolidated Balance Sheet, which is expected to be recognized in earnings over the next twelve months.

Fair Value Measurement

Fair Value Measurement	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurement	Fair Value Measurement For financial instruments that are subsequently measured at fair value, the fair value measurement is grouped into levels. See Note 2. Our debt is recorded at historical amounts. The following table presents the fair value of our debt and derivative contracts at both December 31, 2021 and December 31, 2020: December 31, December 31, Prior Term Loan Facility $ — $ 1,610 New Term Loan Facility 895 — Prior Standard Bank Term Loan Facility — 115 New Standard Bank Term Loan Facility 92 — Senior Notes due 2025 — 468 Senior Notes due 2026 — 641 Senior Notes due 2029 1,071 — 6.5% Senior Secured Notes due 2025 526 536 Tikon Loan — 17 Australian Government Loan 1 1 MGT Loan 33 36 Interest rate swaps 25 57 Foreign currency contracts, net 2 65 We determined the fair value of the Prior Term Loan Facility, the New Term Loan Facility, the Senior Notes due 2025, the Senior Notes due 2026, the Senior Notes due 2029 and the 6.5% Senior Secured Notes due 2025 using quoted market prices, which under the fair value hierarchy is a Level 1 input. We determined the fair value of the Prior Standard Bank Term Loan Facility, the New Standard Bank Term Loan Facility and Tikon Loan utilizing transactions in the listed markets for similar liabilities, which under the fair value hierarchy is a Level 2 input. The fair value of the Australian Government Loan and MGT Loan is based on the contracted amount which is a Level 2 input. We determined the fair value of the foreign currency contracts and interest rate swaps using inputs other than quoted prices in active markets that are observable either directly or indirectly. The fair value hierarchy for the foreign currency contracts and interest rate swaps is a Level 2 input. The carrying value of cash and cash equivalents, restricted cash, accounts receivable and accounts payable approximate fair value due to the short-term nature of these items.

Leases

Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	Leases Lease expense for the year ended December 31, 2021, 2020 and 2019 was comprised of the following: Year Ended December 31, 2021 2020 2019 Operating lease expense $ 47 $ 48 $ 41 Finance lease expense: Amortization of right-of-use assets 1 1 $ 1 Interest on lease liabilities 2 2 $ 2 Short term lease expense 30 26 $ 22 Variable lease expense 23 22 $ 20 Total lease expense $ 103 $ 99 $ 86 The table below summarizes lease expense for the year ended December 31, 2021, 2020 and 2019 recorded in the specific line items in our Consolidated Statements of Operations: Year Ended December 31, 2021 2020 2019 Cost of goods sold $ 98 $ 91 $ 80 Selling, general and administrative expenses 5 8 6 Total $ 103 $ 99 $ 86 The weighted-average remaining lease term in years and weighted-average discount rates at December 31, 2021 and 2020 were as follows: December 31, 2021 December 31, 2020 Weighted-average remaining lease term: Operating leases 8.7 3.3 Finance leases 8.8 9.6 Weighted-average discount rate: Operating leases 7.4 % 7.7 % Finance leases 14.1 % 14.2 % The maturity analysis for operating leases and finance leases at December 31, 2021 were as follows: Operating Leases Finance Leases 2022 30 3 2023 15 3 2024 12 3 2025 8 3 2026 6 3 Thereafter 44 11 Total lease payments 115 26 Less: imputed interest (34) (12) Present value of lease payments $ 81 $ 14 Additional information relating to cash flows and ROU assets for the year ended December 31, 2021, 2020 and 2019 is as follows: December 31, 2021 December 31, 2020 December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 51 $ 55 $ 41 Operating cash flows used for finance leases $ 2 $ 2 $ 2 Financing cash flows used for finance leases $ 1 $ 1 $ 1 Additional information relating to ROU assets for the year ended December 31, 2021 and 2020 is as follows: Year Ended December 31, 2021 2020 ROU assets obtained in exchange for lease obligations: Operating leases obtained in the normal course of business $ 49 $ 29 Finance leases obtained in the normal course of business $ 2 $ — As of December 31, 2021, we have additional operating and finance leases, primarily for equipment and machinery, that have not yet commenced. The related ROU assets of the operating and finance leases are approximately $63 million and $40 million, respectively. These leases will commence later in 2022 with lease terms of between approximately 10 and 15 years.
Leases	Leases Lease expense for the year ended December 31, 2021, 2020 and 2019 was comprised of the following: Year Ended December 31, 2021 2020 2019 Operating lease expense $ 47 $ 48 $ 41 Finance lease expense: Amortization of right-of-use assets 1 1 $ 1 Interest on lease liabilities 2 2 $ 2 Short term lease expense 30 26 $ 22 Variable lease expense 23 22 $ 20 Total lease expense $ 103 $ 99 $ 86 The table below summarizes lease expense for the year ended December 31, 2021, 2020 and 2019 recorded in the specific line items in our Consolidated Statements of Operations: Year Ended December 31, 2021 2020 2019 Cost of goods sold $ 98 $ 91 $ 80 Selling, general and administrative expenses 5 8 6 Total $ 103 $ 99 $ 86 The weighted-average remaining lease term in years and weighted-average discount rates at December 31, 2021 and 2020 were as follows: December 31, 2021 December 31, 2020 Weighted-average remaining lease term: Operating leases 8.7 3.3 Finance leases 8.8 9.6 Weighted-average discount rate: Operating leases 7.4 % 7.7 % Finance leases 14.1 % 14.2 % The maturity analysis for operating leases and finance leases at December 31, 2021 were as follows: Operating Leases Finance Leases 2022 30 3 2023 15 3 2024 12 3 2025 8 3 2026 6 3 Thereafter 44 11 Total lease payments 115 26 Less: imputed interest (34) (12) Present value of lease payments $ 81 $ 14 Additional information relating to cash flows and ROU assets for the year ended December 31, 2021, 2020 and 2019 is as follows: December 31, 2021 December 31, 2020 December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 51 $ 55 $ 41 Operating cash flows used for finance leases $ 2 $ 2 $ 2 Financing cash flows used for finance leases $ 1 $ 1 $ 1 Additional information relating to ROU assets for the year ended December 31, 2021 and 2020 is as follows: Year Ended December 31, 2021 2020 ROU assets obtained in exchange for lease obligations: Operating leases obtained in the normal course of business $ 49 $ 29 Finance leases obtained in the normal course of business $ 2 $ — As of December 31, 2021, we have additional operating and finance leases, primarily for equipment and machinery, that have not yet commenced. The related ROU assets of the operating and finance leases are approximately $63 million and $40 million, respectively. These leases will commence later in 2022 with lease terms of between approximately 10 and 15 years.

Asset Retirement Obligations

Asset Retirement Obligations	12 Months Ended
	Dec. 31, 2021
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligations	Asset Retirement Obligations Asset retirement obligations consist primarily of rehabilitation and restoration costs, landfill capping costs, decommissioning costs, and closure and post-closure costs. Activity related to asset retirement obligations was as follows: Year Ended December 31, 2021 2020 Balance, January 1 $ 166 $ 158 Additions 5 1 Accretion expense 12 12 Remeasurement/translation (9) 7 Changes in estimates, including cost and timing of cash flows (15) (1) Settlements/payments (10) (15) Other acquisition and divestiture related — 4 Balance, December 31 $ 149 $ 166 December 31, 2021 2020 Asset retirement obligations were classified as follows: Current portion included in “Accrued liabilities” $ 10 $ 9 Noncurrent portion included in “Asset retirement obligations” 139 157 Asset retirement obligations $ 149 $ 166 We used the following assumptions in determining asset retirement obligations at December 31, 2021: inflation rates between 1.5% - 4.4% per year; credit adjusted risk-free interest rates between 3.9% -16.9%; the life of mines between 3-25 years and the useful life of assets between 1-32 years. Environmental Rehabilitation Trust In accordance with applicable regulations, we have established an environmental rehabilitation trust for the prospecting and mining operations in South Africa, which receives, holds, and invests funds for the rehabilitation or management of asset retirement obligations. The trustees of the fund are appointed by us and consist of sufficiently qualified employees capable of fulfilling their fiduciary duties. At December 31, 2021 and 2020, the environmental rehabilitation trust assets were $12 million and $12 million, respectively, which were recorded in “Other long-term assets” in the Consolidated Balance Sheets.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Purchase and Capital Commitments —At December 31, 2021, purchase commitments were $231 million for 2022, $87 million for 2023, $122 million for 2024, $52 million for 2025, $105 million for 2026, and $58 million thereafter. Letters of Credit —At December 31, 2021, we had outstanding letters of credit and bank guarantees of $53 million, of which $21 million were letters of credit and $32 million were bank guarantees. Amounts for performance bonds were not material. Environmental Matters — It is our policy to record appropriate liabilities for environmental matters when remedial efforts are probable and the costs can be reasonably estimated. Such liabilities are based on our best estimate of the undiscounted future costs required to complete the remedial work. The recorded liabilities are adjusted periodically as remediation efforts progress or as additional technical, regulatory or legal information becomes available. Given the uncertainties regarding the status of laws, regulations, enforcement policies, the impact of other potentially responsible parties, technology and information related to individual sites, we do not believe it is possible to develop an estimate of the range of reasonably possible environmental loss in excess of our recorded liabilities. We expect to fund expenditures for these matters from operating cash flows. The timing of cash expenditures depends principally on the timing of remedial investigations and feasibility studies, regulatory approval of cleanup projects, remedial techniques to be utilized and agreements with other parties. Included in these environmental matters are the following: Hawkins Point Plant. Residual waste mud, known as Batch Attack Mud, and a spent sulfuric waste stream were deposited in an onsite repository (the “Batch Attack Lagoon”) at a former TiO 2 manufacturing site, Hawkins Point Plant in Baltimore, Maryland, operated by Cristal USA, Inc. from 1954 until 2011. We assumed responsibility for remediation of the Hawkins Point Plant when we acquired the TiO 2 business of Cristal in April 2019. In 1984, a predecessor of Cristal and the Maryland Department of the Environment (“MDE”) entered into a consent decree (the “Consent Decree”) to address the Batch Attack Lagoon. The Consent Decree required that Cristal close the Batch Attack Lagoon when the Hawkins Point Plant ceased operations. In addition, we are investigating whether hazardous substances are migrating from the Batch Attack Lagoon. As of December 31, 2021, a provision of $59 million is included in "Environmental liabilities" in our Consolidated Balance Sheet for the Hawkins Point Plant consistent with the accounting policy described above. We are in discussions with the MDE regarding a new consent decree to address both the Batch Attack Lagoon as well as other environmental contamination issues associated with the Hawkins Point Plant. Other Matters — We are subject to a number of other lawsuits, investigations and disputes (some of which involve substantial amounts claimed) arising out of the conduct of our business, including matters relating to commercial transactions, prior acquisitions and divestitures, including our acquisition of Cristal, employee benefit plans, intellectual property, and environmental, health and safety matters. We recognize a liability for any contingency that is probable of occurrence and reasonably estimable. We continually assess the likelihood of adverse judgments of outcomes in these matters, as well as potential ranges of possible losses (taking into consideration any insurance recoveries), based on a careful analysis of each matter with the assistance of outside legal counsel and, if applicable, other experts. Included in these other matters is the following: Venator Materials plc v. Tronox Limited. In May 2019, Venator Materials plc (“Venator”) filed an action in the Superior Court of the State of Delaware alleging among other things that we owed Venator a $75 million “Break Fee” pursuant to the terms of a preliminary agreement dated July 14, 2018 (the “Exclusivity Agreement”). The Exclusivity Agreement required, among other things, Tronox and Venator to use their respective best efforts to negotiate a definitive agreement to sell the entirety of the National Titanium Dioxide Company Limited’s (“Cristal’s”) North American operations to Venator if a divestiture of all or a substantial part of these operations were required to secure the approval of the Federal Trade Commission for us to complete our acquisition of Cristal’s TiO 2 business. In June 2019, we denied Venator's claims and counterclaimed against Venator seeking to recover $400 million in damages from Venator that we suffered as a result of Venator’s breaches of the Exclusivity Agreement. Specifically, we alleged, among other things, that Venator’s failure to use best efforts constituted a material breach of the Exclusivity Agreement and directly resulted in and caused us to sell Cristal’s North American operations to an alternative buyer for $701 million, $400 million less than the price Venator had agreed to in the Exclusivity Agreement. Though we believe that our interpretation of the Exclusivity Agreement is correct, there can be no assurance that we will prevail in litigation. Western Australia Stamp Duty Matter. In May 2018, we lodged a pre-transaction determination request for a stamp duty exemption with the Western Australia Office of State Revenue (the “WA OSR”) in connection with our re-domicile transaction (the “Re-Domicile Transaction”) which was subsequently granted by the WA OSR in June 2018 on a preliminary basis. Immediately following the consummation of the Re-Domicile Transaction, we filed a confirmation request for the stamp duty exemption with the WA OSR. Following this confirmation request, we exchanged numerous communications with the WA OSR addressing questions raised and stating our position. In July 2021, the WA OSR informed us that they have reviewed their technical position on the applicability of the stamp duty exemption and have determined that such an exemption is disallowed based upon minor technicalities regarding the application of the governing set of rules. While the Company believe the rules were appropriately applied and will be successful in utilizing the exemption allowed, if an unfavorable ruling ultimately prevails it could result in a material charge to the financial statements. The Company is currently assessing its options with respect to this matter.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss) Attributable to Tronox Holdings plc and Other Equity Items	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss) Attributable to Tronox Holdings plc and Other Equity Items	Accumulated Other Comprehensive Income (Loss) Attributable to Tronox Holdings plc and Other Equity Items The tables below present changes in accumulated other comprehensive income (loss) by component for 2021, 2020 and 2019. Cumulative Translation Adjustment Pension Liability Adjustment Unrealized Gains (losses) on Derivatives Total Balance, January 1, 2019 $ (445) $ (95) $ — $ (540) Other comprehensive income (loss) 3 (11) 8 — Acquisition of noncontrolling interest (61) — — (61) Amounts reclassified from accumulated other comprehensive income (loss) — 2 (7) (5) Balance, December 31, 2019 (503) (104) 1 (606) Other comprehensive income (loss) 12 (20) (4) (12) Amounts reclassified from accumulated other comprehensive income (loss) — 4 4 8 Balance, December 31, 2020 $ (491) $ (120) $ 1 $ (610) Other comprehensive income (loss) (103) 16 21 (66) Acquisition of noncontrolling interest (34) — — (34) Amounts reclassified from accumulated other comprehensive income (loss) — 4 (32) (28) Balance, December 31, 2021 $ (628) $ (100) $ (10) $ (738) Repurchase of Common Stock In addition to the repurchase of 14 million shares from Exxaro in 2019, on June 3, 2019, the Company’s Board of Directors authorized the repurchase of up to $100 million of the Company’s stock. During the year ended December 31, 2019, we purchased 7,453,391 shares under the authorization at an average price of $11.59 per share and at a cost of approximately $87 million, including sales commissions and fees. We did not complete the full program given certain Section 382 restrictions related to our NOLs. Upon repurchase of the shares by the Company, the shares were cancelled. On November 9, 2021, the Company's Board of Directors authorized the repurchase of up to $300 million of the Company's stock through February 2024. As of December 31, 2021, there were no repurchases as part of this program.

Share-based Compensation

Share-based Compensation	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Share-based Compensation	Share-based Compensation Share-based compensation expense consisted of the following: Year Ended December 31, 2021 2020 2019 Total share-based compensation expense (continuing operations) from restricted shares and restricted share units $ 31 $ 30 $ 32 The stock compensation expense for the year ended December 31, 2021 is inclusive of a a $3 million true up of expense due to the 2020 and 2021 performance grants as well as the acceleration of $2 million of stock compensation expense associated with the retirement agreement entered into with the former CEO on March 18, 2021. The stock compensation expense for the year ended December 31, 2020 is inclusive of a $4 million credit for the reversal of expense due to the 2018 performance grants. Tronox Holdings plc Amended and Restated Management Equity Incentive Plan On March 27, 2019, in connection with the Re-domicile Transaction, Tronox Holdings plc assumed the management equity incentive plan previously adopted by Tronox Limited, which plan was renamed the Tronox Holdings plc Amended and Restated Management Equity Incentive Plan. The amendments to the plan were made to provide, among other things, for the appropriate substitution of Tronox Holdings in place of Tronox Limited and to ensure the compliance with the laws of England and Wales law in place of Australian law. The MEIP permits the grant of awards that are comprised of incentive options, nonqualified options, share appreciation rights, restricted shares, restricted share units, performance awards, and other share-based awards, cash payments, and other forms as the compensation committee of the Board of Directors (the “Board”) in its discretion deems appropriate, including any combination of the above. The maximum number of shares which were initially subjected to awards (inclusive of incentive options) was 20,781,225 ordinary shares and was increased by 8,000,000 on the affirmative vote of our shareholders on June 24, 2020. Restricted Share Units (“RSUs”) On an annual basis, the Company grants RSUs which have time and/or performance conditions. Both the time-based awards and the performance-based awards are classified as equity awards. 2021 Grants - The Company granted both time-based and performance-based awards to certain members of management and to members of the Board. A total of 659,609 of time-based awards were granted to management which will vest ratably over a three-year period ending March 5, 2024. A total of 56,304 of time-based awards were granted to members of the Board of which will vest in May 2022. A total of 623,112 of performance-based awards were granted, of which 311,556 of the awards vest based on a relative Total Shareholder Return ("TSR") calculation and 311,556 of the awards vest based on certain performance metrics of the Company. The non-TSR performance-based awards vest on March 5, 2024 based on the achievement against the target average company performance of three separate performance periods, commencing on January 1 of each 2021, 2022, and 2023 and ending on December 31 of each 2021, 2022 and 2023, for which, for each performance period, the performance metric is an average annual return on invested capital (ROIC) improvement versus 2020 ROIC. Similar to the Company's historical TSR awards granted in prior years, the TSR awards vest based on the Company's three-year TSR versus the peer group performance levels. Given these terms, the TSR metric is considered a market condition for which we used a Monte Carlo simulation to determine the weighted average grant date fair value of $29.07. Similar TSR awards were granted during 2020 and 2019 with grant date fair values of $10.00 and $12.65, respectively, which were calculated utilizing a Monte Carlo simulation. The following weighted-average assumptions were utilized to value the grants in 2021, 2020 and 2019: 2021 2020 2019 Dividend yield 1.56 % 2.13 % N/A Expected historical volatility 71.10 % 58.30 % 67.20 % Risk free interest rate 0.17 % 1.42 % 2.50 % Expected life (in years) 3 3 3 The following table presents a summary of activity for RSUs for 2021: Number of Shares Weighted Average Grant Date Fair Value Outstanding, January 1, 2021 7,303,905 $ 12.39 Granted 1,339,025 20.91 Vested (2,845,305) 14.49 Forfeited (682,680) 15.16 Outstanding, December 31, 2021 5,114,945 $ 13.12 Expected to vest, December 31, 2021 7,049,472 $ 13.58 At December 31, 2021, there was $30 million of unrecognized compensation expense related to nonvested RSUs, adjusted for estimated forfeitures, which is expected to be recognized over a weighted-average period of 1.8 years. The weighted-average grant-date fair value of RSUs granted during 2021, 2020 and 2019 was $20.91 per unit, $8.89 per unit, and $10.81 per unit, respectively. The total fair value of RSUs that vested during 2021, 2020 and 2019 was $41 million, $30 million and $20 million, respectively. Options We did not issue any options during 2021 and 2020 and all our options outstanding are fully vested at December 31, 2021. The following table presents a summary of option activity for 2021: Number of Options Weighted Average Exercise Price Weighted Average Contractual Life (years) Intrinsic Value Outstanding, January 1, 2021 1,201,891 $ 21.60 2.19 $ — Exercised (424,832) 20.25 Forfeited — — Expired (20,732) 28.26 Outstanding and Exercisable, December 31, 2021 756,327 $ 22.13 1.30 $ 2

Pension and Other Postretiremen

Pension and Other Postretirement Healthcare Benefits	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Pension and Other Postretirement Healthcare Benefits	Pension and Other Postretirement Healthcare Benefits The following provides information regarding our U.S. and foreign plans: U.S. Plans Pension and Postretirement Healthcare Plans — Tronox has one main U.S. defined benefit plan: the U.S. Qualified Plan. Prior to December 2020, the Company also had the U.S. Pension Plan (which was acquired as part of the Cristal acquisition). In December 2020, the U.S. Pension Plan was frozen and merged into the U.S. Qualified Plan. The U.S. Qualified Plan is a funded noncontributory qualified benefit plan which is in accordance with the Employee Retirement Income Security Act of 1974 (“ERISA”) and the Internal Revenue Code. We made contributions into funds managed by a third party, and those funds are held exclusively for the benefit of the plan participants. Benefits under the U.S. Qualified Plan were generally calculated based on years of service and final average pay. The U.S. Qualified Plan was frozen and closed to new participants on June 1, 2009. We also maintain one postretirement healthcare plan - the U.S. retiree welfare plan. International Plans Pension Plans — Tronox has international defined benefit commitments primarily in the United Kingdom ("U.K. DB Scheme") and Saudi Arabia. The U.K. DB Scheme is a funded qualified defined benefit plan in the United Kingdom, which is frozen with no additional benefits accruing to the participants. Benefits under the U.K. DB Scheme are generally calculated based on years of credit service and final compensation when benefits ceased to accrue as defined under the plan provisions. We also maintain a Saudi Arabia Cristal End of Service Benefit plan which provides end of service benefits to qualifying participants. End of service benefits are based on years of service and the reasons for which a participant's services to the Company are terminated. Multiemployer Pension Plan - In prior periods, we maintained a defined benefit plan in the Netherlands (the “Netherlands Plan”) to provide defined pension benefits to qualifying employees of Tronox Pigments (Holland) B.V. and its related companies. During 2014, the Netherlands Plan was replaced with a multiemployer plan, the Netherlands Contribution Plan (the "CDC Plan") effective January 1, 2015. Under the CDC Plan, employees earn benefits based on their pensionable salaries each year determined using a career average benefit formula. The collective bargaining agreement between us and the participants require us to contribute 20.4% of the participants’ pensionable salaries into a pooled fund administered by the industry-wide PGB. The pensionable salary is the annual income of employees subject to a cap, which is adjusted each year to reflect the current requirements of the Netherlands’ Wages and Salaries Tax Act of 1964. Our obligation under this plan is limited to the fixed percentage contribution we make each year. The employees are entitled to any returns generated from the investment activities of the fund. The following table outlines the details of our participation in the CDC Plan for the year ended December 31, 2021. The CDC disclosures provided herein are based on the fund’s 2020 annual report, which is the most recently available public information. Based on the total plan assets and accumulated benefit obligation information in the plan’s annual report, the zone status was green as of December 31, 2020. A green zone status indicates that the plan was at least 80 percent funded. The “FIP/RP Status Pending/Implemented” column indicates whether a financial improvement plan (FIP) or a rehabilitation plan (RP) is either pending or has been implemented. As of December 31, 2021, we are not aware of any financial improvement or rehabilitation plan being implemented or pending. The last column lists the expiration date of the collective-bargaining agreement to which the plan is subject. Pension Protection Act Zone Status Tronox Contributions Pension Fund EIN/Pension Plan Number 2021 2020 FIP/RP Pending/ Implemented 2021 2020 Surcharge Imposed Expiration date of Collective- Bargaining Agreement PGB NA N/A Green No $ 5 $ 5 No 12/31/2024 On the basis of the information available in the CDC Plan 2020 annual report, our contribution does not constitute more than 5 percent of the total contribution to the plan by all participants. During 2021, the fund did not impose any surcharge on us. Postretirement Healthcare Plans — We also maintain postretirement healthcare plans in South Africa (the "South African Plan") and Brazil (the "Brazil Medical Plan"). The South African Plan provides medical and dental benefits to certain South African employees, retired employees and their registered dependents. The South African Plan provides benefits as follows: (i) members employed before March 1, 1994 receive 100% post-retirement and death-in-service benefits; (ii) members employed on or after March 1, 1994 but before January 1, 2002 receive 2% per year of completed service subject to a maximum of 50% post-retirement and death-in-service benefits; and, (iii) members employed on or after January 1, 2002 receive no post-retirement and death-in-service benefits. The Brazil Medical Plan provides post-employment medical benefits to employees who contributed to the medical plan while employed. Retirees receiving a benefit under the plan are required to pay a contribution that varies based on the coverage level elected. Pension and Postretirement Benefit Costs / Obligations Benefit Obligations and Funded Status — The following provides a reconciliation of beginning and ending benefit obligations, beginning and ending plan assets, funded status, and balance sheet classification of our U.S. and international pension plans and other post-retirement benefit plans ("OPEB") as of and for the years ended December 31, 2021 and 2020. The benefit obligations and plan assets associated with our principal benefit plans are measured on December 31. Pensions Other Post Retirement Benefit Plans December 31 December 31 2021 2020 2021 2020 US International US International US International US International Change in benefit obligations: Benefit obligation, beginning of year $ 399 $ 252 $ 398 $ 232 $ 2 $ 23 $ 2 $ 13 Service cost — 4 1 4 — 1 — — Interest cost 10 4 12 5 — 2 — 1 Net actuarial (gains) losses (10) (10) 28 20 — (3) — 3 Curtailments — — (2) — — — — (1) Settlements — — (7) (6) — — — — Plan amendments (1) — — — — — (4) — 9 Foreign currency rate changes — (2) — 6 — (2) — (2) Benefits paid (30) (14) (31) (9) — (1) — — Benefit obligation, end of year (2) 369 234 399 252 2 16 2 23 Change in plan assets: Fair value of plan assets, beginning of year 344 195 319 186 — — — — Actual return on plan assets 23 (3) 41 15 — — — — Employer contributions — 6 22 3 — 1 — — Benefits paid (30) (14) (31) (9) — (1) — — Foreign currency rate changes — (1) — 6 — — — — Settlements — — (7) (6) — — — — Fair value of plan assets, end of year 337 183 344 195 — — — — Net underfunded status of plans $ (32) $ (51) $ (55) $ (57) $ (2) $ (16) $ (2) $ (23) Classification of amounts recognized in the Consolidated Balance Sheets: Other long-term assets $ — $ 20 $ — $ 14 $ — $ — $ — $ — Accrued liabilities — (4) — (5) (1) — — — Pension and postretirement healthcare benefits (32) (67) (55) (66) (1) (16) (2) (23) Total liabilities (32) (71) (55) (71) (2) (16) (2) (23) Accumulated other comprehensive (income) loss 81 10 98 12 — 3 — 12 Total $ 49 $ (41) $ 43 $ (45) $ (2) $ (13) $ (2) $ (11) ________________ (1) Relates to a plan amendment entered into during both 2021 and 2020 related to the Brazil Medical Plan. (2) Since the benefits under the U.S Qualified Plan and the U.K. DB Scheme are frozen, the projected benefit obligation and accumulated benefit obligation are the same. Contributions At a minimum, Tronox contributes to its pension plans to comply with local regulatory requirements (e.g., ERISA in the United States). Discretionary contributions in excess of the local minimum requirements are made based on many factors, including long-term projections of the plans' funded status, the economic environment, potential risk of overfunding, pension insurance costs and alternative uses of the cash. Changes to these factors can impact the timing of discretionary contributions from year to year. Pension contributions were less than $1 million in 2021 and are currently expected to be less than $1 million in 2022. The following table provides information for pension plans where the accumulated benefit obligation exceeds the fair value of the plan assets: Pensions 2021 US International Projected benefit obligation (PBO) $ 369 $ 71 Accumulated benefit obligation (ABO) $ 369 $ 47 Fair value of plan assets $ 337 $ — Expected Benefit Payments — The following table shows the expected cash benefit payments for the next five years and in the aggregate for the years 2027 through 2031: 2022 2023 2024 2025 2026 2027-2031 Pensions - US $ 32 $ 29 $ 28 $ 27 $ 26 $ 115 Pensions - International $ 11 $ 9 $ 10 $ 11 $ 11 $ 57 Other Post Retirement Benefit Plans - US $ — $ — $ — $ — $ — $ 1 Other Post Retirement Benefit Plans - International $ — $ — $ 1 $ 1 $ 1 $ 6 Retirement and Postretirement Healthcare Expense — The table below presents the components of net periodic cost associated with the U.S. and foreign plans recognized in the Consolidated Statements of Operations for 2021, 2020, and 2019: Pensions Other Postretirement Benefit Plans Year Ended December 31, Year Ended December 31, 2021 2020 2019 2021 2020 2019 Net periodic cost: Service cost $ 4 $ 5 $ 4 $ 1 $ — $ — Interest cost (1) 14 17 21 2 1 1 Expected return on plan assets (1) (26) (22) (22) — — — Net amortization of actuarial loss (1) 5 4 2 1 — — Settlement losses (gains) (1) — — (1) — — — Curtailment (gains) (1) — (2) — — — — Total net periodic cost - continuing operations $ (3) $ 2 $ 4 $ 4 $ 1 $ 1 ________________ (1) Recorded in Other income, net in the Consolidated Statement of Operations. Assumptions — The following weighted average assumptions were used to determine net periodic cost: Pension 2021 2020 2019 US International US International US International Discount rate 2.60 % 1.47 % 3.39 % 1.98 % 4.34 % 2.50 % Expected return on plan assets 6.70 % 2.50 % 6.03 % 2.50 % 5.69 % 3.00 % OPEB 2021 2020 2019 US International US International US International Discount rate 2.59 % 10.19 % 3.36 % 8.72 % 4.00 % 10.25 % Expected return on plan assets N/A N/A N/A N/A N/A N/A The following weighted average assumptions were used in estimating the actuarial present value of benefit obligations: Pensions 2021 2020 2019 US International US International US International Discount rate 2.97 % 1.87 % 2.60 % 1.45 % 3.39 % 1.98 % Rate of compensation increase N/A 4.68 % 3.00 % 4.65 % 3.00 % 4.67 % OPEB 2021 2020 2019 US International US International US International Discount rate 2.83 % 10.33 % 2.59 % 9.51 % 3.36 % 9.91 % Rate of compensation increase N/A N/A N/A N/A N/A N/A For the U.S. Qualified Plan, the mortality assumption was updated on December 31, 2021 to use the Society of Actuaries' most recently published generational projection scale (i.e. MP-2021) and base table (i.e. Pri-2012). The mortality improvement scale that had been used as of December 31, 2020 was the MP-2020 projection scale and the base table was Pri-2012. Expected Return on Plan Assets — In forming the assumption of the U.S. and international long-term rate of return on plan assets, we considered the expected earnings on funds already invested, earnings on contributions expected to be received in the current year, and earnings on reinvested returns. The long-term rate of return estimation methodology for the Company's pension plans is based on a capital asset pricing model using historical data and a forecasted earnings model. An expected return on plan assets analysis is performed which incorporates the current portfolio allocation, historical asset-class returns, and an assessment of expected future performance using asset-class risk factors. Discount Rate — The 2021 and 2020 rates were selected based on the results of a cash flow matching analysis, which projected the expected cash flows of the plans using a yield curves model developed from a universe of Aa-graded U.S. currency corporate bonds (obtained from Bloomberg) with BVAL scores of 6 or greater. Plan Assets — The investments of the U.S. and International pension plans are managed to meet the future expected benefit liabilities of the plan over the long term by investing in diversified portfolios consistent with prudent diversification and historical and expected capital market returns . Tronox's U.S. and international pension plans’ weighted-average asset allocations at December 31, 2021 and 2020, and the target asset allocation ranges, by major asset category, are as follows: December 31, 2021 2020 US International US International Actual Target Actual Target Actual Target Actual Target Equity securities 49 % 49 % — % — % 43 % 42 % — % — % Debt securities 46 48 43 43 39 40 39 30 Real estate 1 — — — 1 — — — Other 4 3 57 57 17 18 61 70 Total 100 % 100 % 100 % 100 % 100 % 100 % 100 % 100 % The fair values of pension investments as of December 31, 2021 are summarized below: Fair Value Measurement at December 31, 2021 Using: Quoted Prices Significant Other Significant Total Asset category: Equities securities: Global equity securities $ 93 (1) $ — $ — $ 93 Global comingled equity funds 73 (2) — — 73 Debt securities: US government bonds 81 (3) — — 81 Foreign government bonds 39 (3) — — 39 US corporate bonds — 73 (4) — 73 Foreign corporate bonds — 42 (4) — 42 Real Estate: Property/ real estate fund — 1 (5) — 1 Other: Insurance contracts — — 98 (7) 98 Cash & cash equivalents 19 (6) — — 19 Total at fair value $ 305 $ 116 $ 98 $ 519 ________________ (1) For global equity securities, this category is comprised of shares of common stock in both U.S. and international companies from a diverse set of industries and size. Common stock is valuated at the closing market price reported on a U.S. or international exchange where the security is actively traded. Equity securities are classified within level 1 of the fair value hierarchy. (2) Global commingled equity funds are comprised of managed funds that invest in common stock of both U.S. and international companies shares from a diverse set of industries and size. Common stock are valued at the closing market price reported on a U.S. or international exchange where the security is actively traded. These funds are classified within level 1 of the fair value hierarchy. (3) For US and foreign government bonds, this category includes U.S. treasuries, U.S. federal agency obligations and international government debt. The fair value of these investments are based on observable quoted prices on active exchanges, which are level 1 inputs. (4) For US corporate bonds and foreign corporate bonds, this category is comprised of corporate bonds of U.S. and foreign companies from a diverse set of industries and size. The fair values for the U.S. and foreign corporate bonds are determined using quoted prices of similar securities in active markets and observable data or broker or dealer quotations. The fair values for these investments are classified as level 2 within the valuation hierarchy. (5) For property / real estate funds, this category includes real estate properties, partnership equities and investments in operating companies. The fair value of the assets is determined using discounted cash flows by estimating an income stream for the property plus a reversion into a present value at a risk adjusted rate. Yield rates and growth assumptions utilized are derived from market transactions as well as other financial and industry data. The fair value of these investments are classified as level 2 in the valuation hierarchy. (6) Cash and cash equivalents include cash and short-interest bearing investments with maturities of three months or less. Investments are valued at cost plus accrued interest. Cash and cash equivalents are classified within level 1 of the valuation hierarchy. (7) For insurance contracts, the fair value is estimated as the cost of purchasing equivalent annuities on terms consistent with those currently available in the market. The contracts are with highly rated insurance companies and are classified within level 3 of the valuation hierarchy. The following table summarizes changes in fair value of the pension plan assets classified as level 3 for the year ended December 31, 2021: Insurance Contracts Balance, December 31, 2020 $ 111 Actual return on plan assets (6) Purchases, sales, settlements (6) Transfers in/out of Level 3 — Foreign currency translation (1) Balance, December 31, 2021 $ 98 The fair values of pension investments as of December 31, 2020 are summarized below: Fair Value Measurement at December 31, 2020, Using: Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Asset category: Equities securities: Global equity securities $ 83 (1) $ — $ — $ 83 Global comingled equity funds 66 (2) — — 66 Debt securities: US government bonds 70 (3) — — 70 Foreign government bonds 37 (3) — — 37 US corporate bonds — 62 (4) — 62 Foreign corporate bonds — 43 (4) — 43 Real Estate: Property/ real estate fund — 1 (5) — 1 Other: Insurance contracts — — 111 (7) 111 Cash & cash equivalents 66 (6) — — 66 Total at fair value $ 322 $ 106 $ 111 $ 539 ________________ (1) For global equity securities, this category is comprised of shares of common stock in both U.S. and international companies from a diverse set of industries and size. Common stock is valuated at the closing market price reported on a U.S. or international exchange where the security is actively traded. Equity securities are classified within level 1 of the fair value hierarchy. (2) Global commingled equity funds are comprised of managed funds that invest in common stock of both U.S. and international companies shares from a diverse set of industries and size. Common stock are valued at the closing market price reported on a U.S. or international exchange where the security is actively traded. These funds are classified within level 1 of the fair value hierarchy. (3) For US and foreign government bonds, this category includes U.S. treasuries, U.S. federal agency obligations and international government debt. The fair value of these investments are based on observable quoted prices on active exchanges, which are level 1 inputs. (4) For US corporate bonds and foreign corporate bonds, this category is comprised of corporate bonds of U.S. and foreign companies from a diverse set of industries and size. The fair values for the U.S. and foreign corporate bonds are determined using quoted prices of similar securities in active markets and observable data or broker or dealer quotations. The fair values for these investments are classified as level 2 within the valuation hierarchy. (5) For property / real estate funds, this category includes real estate properties, partnership equities and investments in operating companies. The fair value of the assets is determined using discounted cash flows by estimating an income stream for the property plus a reversion into a present value at a risk adjusted rate. Yield rates and growth assumptions utilized are derived from market transactions as well as other financial and industry data. The fair value of these investments are classified as level 2 in the valuation hierarchy. (6) Cash and cash equivalents include cash and short-interest bearing investments with maturities of three months or less. Investments are valued at cost plus accrued interest. Cash and cash equivalents are classified within level 1 of the valuation hierarchy. (7) For insurance contracts, the fair value is estimated as the cost of purchasing equivalent annuities on terms consistent with those currently available in the market. The contracts are with highly rated insurance companies and are classified within level 3 of the valuation hierarchy. The following table summarizes changes in fair value of the pension plan assets classified as level 3 for the year ended December 31, 2020: Insurance Contracts Balance, December 31, 2019 $ 104 Actual return on plan assets 9 Purchases, sales, settlements (5) Transfers in/out of Level 3 — Foreign currency translation 3 Balance, December 31, 2020 $ 111 Defined Contribution Plans U.S. Savings Investment Plan In 2006, we established the U.S. Savings Investment Plan (the “SIP”), a qualified defined contribution plan under Section 401(k) of the Internal Revenue Code. Under the SIP, our regular full-time and part-time employees contribute a portion of their earnings, and we match these contributions up to a predefined threshold. Our matching contribution is 100% of the first 6% of employee contributions. Effective January 1, 2013, we established a profit sharing contribution at 6% of employees’ pay (“discretionary contribution”). A discretionary contribution of 6% was made for 2021, 2020 and 2019. Our matching contribution to the SIP vests immediately; however, our discretionary contribution is subject to vesting conditions that must be satisfied over a three U.S. Benefit Restoration Plan In 2006, we established the U.S. Benefit Restoration Plan (the “BRP”), a nonqualified defined contribution plan, for employees whose eligible compensation is expected to exceed the IRS compensation limits for qualified plans. Under the BRP, participants can contribute up to 20% of their annual compensation and incentive. Our matching contribution under the BRP is the same as the SIP. Our matching contribution under this plan vests immediately to plan participants. Contributions under the BRP, including our match, are invested in accordance with the investment options elected by plan participants. Compensation expense associated with our matching contribution to the BRP was $1 million, $1 million and $2 million during 2021, 2020 and 2019, respectively, which was included in “Selling, general and administrative expenses” in the Consolidated Statements of Operations. South Africa Defined Contribution Plans Tronox Mineral Sands Proprietary Limited, a wholly owned subsidiary of the Company, participates in several defined contribution plans which are registered in the Republic of South Africa and are governed by the South African Pension Funds Act of 1956. These plans provide retirement and other benefits to all permanent employees, and where applicable, retired employees and their dependents. The Company contributes a range of 10% to 15% (depending on the plan) of the employees' predefined pre-tax pensionable earnings. Compensation expense associated with these plans was $5 million, $4 million, and $4 million during 2021, 2020 and 2019, respectively, which was included in both "Costs of goods sold" and "Selling, general and administrative expenses" in the Consolidated Statements of Operations.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party TransactionsExxaro In connection with the Company’s acquisition in 2012 of Exxaro Resources Limited’s (“Exxaro”) mineral sands business, Exxaro was granted a “flip in” right such that following the occurrence of certain events, Exxaro could exercise a put option, or the Company could exercise a call option, whereby Exxaro exchanges its 26% shareholding in the Company’s South African operating subsidiaries which hold the Company’s material mining licenses (the “South African Subsidiaries Interest”) for an additional 7,246,035 of our ordinary shares. On November 26, 2018, the Company, certain of the Company’s subsidiaries and Exxaro entered into the Exxaro Mineral Sands Transaction Completion Agreement which amended the “flip in” rights granted to Exxaro to accelerate the occurrence of the “flip in” upon satisfaction of certain conditions, which have now been satisfied. On February 23, 2021, we exercised our call option to complete the “flip in” transaction, pursuant to which we issued to Exxaro 7,246,035 new ordinary shares of the Company in exchange for Exxaro’s South African Subsidiaries Interest. In addition, on March 1, 2021, Exxaro sold its entire share ownership in us, including the “flip-in” shares, totaling 21,975,315 ordinary shares in an underwritten public offering. Tasnee/Cristal On April 10, 2019, we announced the completion of the acquisition of the TiO 2 business of Cristal for $1.675 billion of cash, subject to a working capital and noncurrent liability adjustment, plus 37,580,000 ordinary shares. At December 31, 2021, Cristal International Holdings B.V. (formerly known as Cristal Inorganic Chemical Netherlands Cooperatief W.A.), a wholly-owned subsidiary of Tasnee, continues to own 37,580,000 shares of Tronox, or a 24% ownership interest. In February 2020, Tronox and Cristal resolved the working capital and noncurrent liability adjustment by agreeing that no payment was required by either party. On May 9, 2018, we entered into an Option Agreement with AMIC which is owned equally by Tasnee and Cristal. Under the terms of the Option Agreement, AMIC granted us an option (the “Option”) to acquire 90% of a special purpose vehicle (the “SPV”), to which AMIC’s ownership in a titanium slag smelter facility (the “Slagger”) in The Jazan City for Primary and Downstream Industries in KSA will be contributed together with $322 million of AMIC indebtedness (the "AMIC Debt"). The AMIC Debt would remain outstanding debt of the SPV upon exercise of the Option. The Option may be exercised if the Slagger achieves certain production criteria related to sustained quality and tonnage of slag produced (the “Option Criteria”). Likewise, AMIC may require us to acquire the Slagger on the same terms if the Option Criteria are satisfied. Furthermore, pursuant to the Option Agreement and during its term, we agreed to lend AMIC and, upon the creation of the SPV, the SPV, up to $125 million for capital expenditures and operational expenses intended to facilitate the start-up of the Slagger (the “Tronox Loans”). We have lent AMIC the Tronox Loans maximum amount of $125 million which is recorded within "Other long-term assets" on the Consolidated Balance Sheet as of both December 31, 2021 and 2020 as well as the related interest of $9 million a nd $6 million, respectively. The Option did not have a significant impact on the financial statements as of or for the periods ended December 31, 2021 and 2020. On May 13, 2020, we amended the Option Agreement (the "First Amendment") with AMIC to address circumstances in which the Option Criteria cannot be satisfied. Pursuant to the First Amendment, Tronox has the right to acquire the SPV in exchange for (i) our forgiveness of the Tronox Loans principal and accrued interest thereon, and (ii) the SPV's assumption of $36 million of indebtedness plus accrued interest thereon lent by AMIC to the SPV. Under the First Amendment, the SPV would not assume any of the AMIC Debt. Additionally, on May 13, 2020, we amended a Technical Services Agreement that we had entered with AMIC on March 15, 2018, to add project management support services. Under this arrangement, AMIC and its consultants are still responsible for engineering and construction of the Slagger while we provide technical advice and project management services including supervision and management of third party consultants intended to satisfy the Option Criteria. As compensation for these services, Tronox receives a monthly management fee of approximately $1 million, which is recorded in “Other income, net” within the Consolidated Statement of Operations and in “Prepaid and other assets” on the Consolidated Balance Sheet. The monthly management fee is subject to certain success incentives if and when the Slagger achieves the Option Criteria. The term of the Amended TSA was extended in December 2021 until December 31, 2022. Tronox recorded approximately $8 million and $5 million in "Other Income" for this the management fee for the years ended December 31, 2021 and 2020, respectively, in the Consolidated Statement of Operations. At both December 31, 2021 and 2020, Tronox had a receivable due from AMIC related to management fee of $1 million that is recorded within “Prepaid and other assets” on the Consolidated Balance Sheet. At December 31, 2021, Tronox had a receivable due from Tasnee of $8 million related primarily to $4 million of stamp duty taxes reimbursable from Tasnee and $3 million for pre-acquisition period tax settlements in process with certain tax authorities also reimbursable from Tasnee. At December 31, 2020, Tronox had a receivable due from Tasnee of $9 million related primarily to amounts arising from transition service agreements, stamp duty taxes paid on behalf of Tasnee, pre-acquisition activities and reimbursement of a tax settlement due to the Australian Taxation Office for pre-acquisition tax periods. These receivables are recorded within “Prepaid and other assets” on the Consolidated Balance Sheet. On December 29, 2019, we entered into an agreement with Cristal to acquire certain assets co-located at our Yanbu facility which produce metal grade TiCl4 ("MGT"). Consideration for the acquisition is the assumption by Tronox of a $36 million note payable to Cristal (the "MGT Loan"). MGT is used at a titanium "sponge" plant facility, 65% of the ownership interests of which are held by Advanced Metal Industries Cluster and Toho Titanium Metal Co. Ltd ("ATTM"), a joint venture between AMIC and Toho Titanium Company Ltd. ATTM uses the TiCl4, which we supply by pipeline, for the production of titanium sponge, a precursor material used in the production of titanium metal. On December 17, 2020 we completed the MGT transaction. Repayment of the $36 million note payable is based on a fixed U.S. dollar per metric ton quantity of MGT delivered by us to ATTM over time and therefore the ultimate maturity date is variable in nature. If ATTM fails to purchase MGT from us under certain contractually agreed upon conditions, then at our election we may terminate the MGT supply agreement with ATTM and will no longer owe any amount under the loan agreement with Cristal. We currently estimate the ultimate maturity to be between approximately five and six years, subject to actual future MGT production levels. The interest rate on the note payable is based on the SAIBOR plus a premium. As of December 31, 2021, the outstanding balance of the note payable was $33 million, of which $7 million is expected to be paid within the next twelve months. During the year ended December 31, 2021 and 2020, Tronox recorded interest expense of $1 million and nil, respectively, related to the MGT Loan, which is recorded in "Interest expense" on the Consolidated Statement of Operations. During the year ended December 31, 2021 and 2020, Tronox recorded $4 million and nil, respectively, for MGT Loan repayments to Cristal that is recorded within "Net sales" on the Consolidated Statement of Operations. As a result of these transactions we have entered into related to the MGT assets, Tronox recorded $8 million and $5 million for purchase of chlorine gas for the years ended December 31, 2021 and 2020, respectively, from ATTM and such amounts are recorded in "Cost of goods sold" on the Consolidated Statement of Operations. The amount due to ATTM as of December 31, 2021 and 2020, for the purchase of chlorine gas was $1 million and $3 million, respectively, and is recorded within “Accrued liabilities” on the Consolidated Balance Sheet. During the year ended December 31, 2021 and 2020, Tronox recorded $31 million and $25 million, respectively, for MGT sales made to AMIC. The MGT sales are recorded in “Net sales” on the Consolidated Statement of Operations. At December 31, 2021 and December 31, 2020, Tronox had a receivable from AMIC of $6 million and $7 million, respectively, from MGT sales that is recorded within “Prepaid and other assets” on the Consolidated Balance Sheet.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Segment Information	Segment Information We operate our business under one operating segment, Tronox , which is also our reportable segment. The Company's chief operating decision maker, who are its Co-CEOs, reviews financial information presented at the consolidated level for purposes of allocating resources and evaluating financial performance. Since we operate our business under one segment, there is no difference between our consolidated results and segment results. We disaggregate revenue from contracts with customers by product type and geographic area as well as sales based on country of production. We believe this level of disaggregation appropriately depicts how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors and reflects how our business is managed. During 2021, 2020 and 2019 our ten largest third-party customers represented 28%, 32%, and 31%, respectively, of our consolidated net sales. During 2021, 2020, and 2019, no single customer accounted for 10 % of our consolidated net sales. Net sales to external customers based on country of production, were as follows: Year Ended December 31, 2021 2020 2019 U.S. operations $ 716 $ 653 $ 676 International operations: United Kingdom 396 301 218 Australia 873 637 674 South Africa 441 330 370 Saudi Arabia 420 269 218 Other - international 726 568 486 Total net sales $ 3,572 $ 2,758 $ 2,642 See Note 5 for further information on revenues. There is no difference between the total consolidated assets of continuing operations and our segment assets. Property, plant and equipment, net, mineral leaseholds, net, and lease right of use assets, net by geographic region, were as follows: December 31, 2021 2020 U.S. operations $ 251 $ 261 International operations: United Kingdom 97 101 Saudi Arabia 241 262 South Africa 705 768 Australia 1,000 995 Other - international 248 256 Total $ 2,542 $ 2,643

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation We are considered a domestic company in the United Kingdom and, as such, are required to comply with filing requirements in the United Kingdom. Additionally, we are not considered a “foreign private issuer” in the U.S.; therefore, we are required to comply with the reporting and other requirements imposed by the U.S. securities law on U.S. domestic issuers, which, among other things, requires reporting under accounting principles generally accepted in the United States of America (“U.S. GAAP”). The consolidated financial statements included in this Form 10-K are prepared in conformity with U.S. GAAP. Our consolidated financial statements include the accounts of all majority-owned subsidiary companies. All intercompany balances and transactions have been eliminated in consolidation. Certain prior period amounts have been reclassified to conform to the manner and presentation in the current period.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. It is at least reasonably possible that the effect on the financial statements of a change in estimate due to one or more future confirming events could have a material effect on the financial statements.
Foreign Currency	Foreign Currency The U.S. dollar is our reporting currency for our consolidated financial statements in U.S. GAAP. We determine the functional currency of each subsidiary based on a number of factors, including the predominant currency for revenues, expenditures and borrowings. Adjustments from the remeasurement of non-functional currency monetary assets and liabilities are recorded in “Other income, net” in the Consolidated Statements of Operations. When a subsidiary’s functional currency is not the U.S. dollar, translation adjustments resulting from translating the functional currency financial statements into U.S. dollar equivalents are recorded in “Accumulated other comprehensive loss” in the Consolidated Balance Sheets. Translation adjustments on intercompany foreign currency receivables and payables that are not expected to be settled in the foreseeable future are reported in the same manner as translation adjustments.
Revenue Recognition	Revenue Recognition We recognize revenue at a point in time when the customer obtains control of the promised products. For most transactions this occurs when products are shipped from our manufacturing facilities or at a later point when control of the products transfers to the customer at a specified destination or time. All amounts billed to a customer in a sales transaction related to shipping and handling represent revenues earned and are reported as “Net sales” in the Consolidated Statements of Operations. Accruals are made for sales returns, rebates and other allowances, which are recorded in “Net sales” in the Consolidated Statements of Operations and are based on our historical experience and current business conditions. Additionally, we have elected the practical
Cost of Goods Sold	Cost of Goods Sold Cost of goods sold includes costs for purchasing, receiving, manufacturing, and distributing products, including raw materials, energy, labor, depreciation, depletion, shipping and handling, freight, warehousing, and other production costs.
Research and Development	Research and Development Research and development costs, included in “Selling, general and administrative expenses” in the Consolidated Statements of Operations comprised of salaries, building costs, utilities, administrative expenses, third party research, and allocations of corporate costs, were $13 million, $12 million, and $17 million during 2021, 2020, and 2019, respectively, and were expensed as incurred.
Selling, General and Administrative Expenses	Selling, General and Administrative Expenses Selling, general and administrative expenses include costs related to marketing, research and development, agent commissions, and legal and administrative functions such as corporate management, human resources, information technology, investor relations, accounting, treasury, and tax compliance.
Income Taxes	Income Taxes We use the asset and liability method of accounting for income taxes. The estimation of the amounts of income taxes involves the interpretation of complex tax laws and regulations and how foreign taxes affect domestic taxes, as well as the analysis of the realizability of deferred tax assets, tax audit findings, and uncertain tax positions. Deferred tax assets and liabilities are determined based on temporary differences between the financial reporting and tax bases of assets and liabilities using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. A valuation allowance is provided against a deferred tax asset when it is more likely than not that all or some portion of the deferred tax asset will not be realized. We periodically assess the likelihood that we will be able to recover our deferred tax assets and reflect any changes in our estimates in the valuation allowance, with a corresponding adjustment to earnings or other comprehensive income (loss), as appropriate. All available positive and negative evidence is weighted to determine whether a valuation allowance should be recorded.
Earnings Per Share	Earnings per Share Basic and diluted earnings per share are calculated using the two-class method. Under the two-class method, earnings used to determine basic earnings per share are reduced by an amount allocated to participating securities. Participating securities include restricted shares issued under the Tronox Management Equity Incentive Plan (the “MEIP”) (see Note 22), which contains non-forfeitable dividend rights. Our unexercised options and unvested restricted share units do not contain non-forfeitable rights to dividends and, as such, are not considered in the calculation of basic earnings per share. Our unvested restricted shares do not have a contractual obligation to share in losses; therefore, when we record a net loss, none of the loss is allocated to participating securities. Consequently, in periods of net loss, the two-class method does not have an effect on basic loss per share. Diluted earnings per share is calculated by dividing net earnings allocable to ordinary shares by the weighted-average number of ordinary shares outstanding for the period, as adjusted for the potential dilutive effect of non-participating restricted share units and options. The options are included in the calculation of diluted earnings per ordinary share utilizing the treasury stock method. See Note 9.
Fair Value Measurement	Fair Value Measurement We measure fair value on a recurring basis utilizing valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs, to the extent possible, and consider counterparty credit risk in our assessment of fair value. The fair value hierarchy is as follows: • Level 1 – Quoted prices in active markets for identical assets and liabilities; • Level 2 – Quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active or other inputs that are observable or can be corroborated by observable market data; and, • Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets and liabilities See Note 17.
Cash and Cash Equivalents	Cash and Cash Equivalents We consider all investments with original maturities of three months or less to be cash equivalents. We maintain cash and cash equivalents in bank deposit and money market accounts that may exceed federally insured limits. The financial institutions where our cash and cash equivalents are held are generally highly rated and geographically dispersed, and we have a policy to limit the amount of credit exposure with any one institution. We have not experienced any losses in such accounts and believe we are not exposed to significant credit risk.
Accounts Receivable, net of allowance for credit losses	Accounts Receivable, net of allowance for credit losses We perform credit evaluations of our customers, and take actions deemed appropriate to mitigate credit risk. Only in certain specific occasions do we require collateral in the form of bank or parent company guarantees or guarantee payments. We maintain allowances for potential credit losses based on specific customer review and current financial conditions.
Inventories, net	Inventories, net Pigment inventories are stated at the lower of actual cost and net realizable value, net of allowances for obsolete and slow-moving inventory. The cost of inventories is determined using the first-in, first-out method. Carrying values include material costs, labor, and associated indirect manufacturing expenses. Costs for materials and supplies, excluding titanium ore, are determined by average cost to acquire. Feedstock and co-products inventories including titanium ore are stated at the lower of the weighted-average cost of production or market. Inventory costs include those costs directly attributable to products, including all manufacturing overhead but excluding distribution costs. Raw materials are carried at actual cost. We review the cost of our inventory in comparison to its net realizable value. We also periodically review our inventory for obsolescence. In either case, we record any write-down equal to the difference between the cost of inventory and its estimated net realizable value based on assumptions about alternative uses, market conditions and other factors. Inventories expected to be sold or consumed within twelve months after the balance sheet date are classified as current assets and all other inventories are classified as non-current assets. See Note 10.
Long Lived Assets	Long Lived Assets Property, plant and equipment, net is stated at cost less accumulated depreciation, and is depreciated over its estimated useful life using the straight-line method as follows: Land improvements 10 — 20 years Buildings 10 — 40 years Machinery and equipment 3 — 25 years Furniture and fixtures 10 years Maintenance and repairs are expensed as incurred, except for costs of replacements or renewals that improve or extend the lives of existing properties, which are capitalized. Upon retirement or sale, the cost and related accumulated depreciation are removed from the respective account, and any resulting gain or loss is included in “Cost of goods sold” or “Selling, general, and administrative expenses” in the Consolidated Statements of Operations. See Note 11. We capitalize costs associated with our asset retirement obligations which are generally included in machinery and equipment. See Note 19. We capitalize interest costs on major projects that require an extended period of time to complete. See Note 15. Mineral property acquisition costs are capitalized as tangible assets when management determines that probable future benefits consisting of a contribution to future cash inflows have been identified and adequate financial resources are available or are expected to be available as required to meet the terms of property acquisition and anticipated exploration and development expenditures. Mineral leaseholds are depleted over their useful lives as determined under the units of production method. Mineral property exploration costs are expensed as incurred. When it has been determined that a mineral property can be economically developed as a result of establishing proven and probable reserves, the costs incurred to develop such property through the commencement of production are capitalized. See Note 12. Intangible assets are stated at cost less accumulated amortization and are amortized on a straight-line basis over their estimated useful lives, which generally range from 3 to 20 years. See Note 13. We evaluate the recoverability of the carrying value of long-lived assets that are held and used whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Under such circumstances, we assess whether the projected undiscounted cash flows of our long-lived assets are sufficient to recover the carrying amount of the asset group being assessed. If the undiscounted projected cash flows are not sufficient, we calculate the impairment amount by discounting the projected cash flows using our weighted-average cost of capital. For assets that satisfy the criteria to be classified as held for sale, an impairment loss, if any, is recognized to the extent the carrying amount exceeds fair value, less cost to sell. The amount of the impairment of long-lived assets is written off against earnings in the period in which the impairment is determined.
Business Acquisitions	Business Acquisitions Business acquisitions are accounted for using the acquisition method under Accounting Standards Codification (“ASC”) 805, Business Combinations (“ASC 805”), which requires recording assets acquired and liabilities assumed at fair value as of the acquisition date. Under the acquisition method of accounting, each tangible and separately identifiable intangible asset acquired and liabilities assumed is recorded based on their preliminary estimated fair values on the acquisition date. The initial valuations are derived from estimated fair value assessments and assumptions used by management. Acquisition related costs are expensed as incurred and are included in “Selling, general and administrative expenses” in the Consolidated Statements of Operations.
Leases	Leases We determine if a contract is or contains a lease at inception of the contract. Our leases are primarily operating leases. Leased assets primarily include office buildings, rail cars and motor vehicles, forklifts, and other machinery and equipment. Our leases primarily have fixed lease payments, with real estate leases typically requiring additional payments for real estate taxes and occupancy-related costs. Certain of our leases also have variable lease payments. Variable lease payments that depend on an index or a rate (such as the Consumer Price Index) are included in our initial measurement of the lease right of use assets and lease liabilities. Variable lease payments that are not index or rate based (such as variable payments based on our performance or use of the leased assets) are recorded as expenses when incurred and excluded from the measurement of right of use assets and lease liabilities. Our leases typically have initial lease terms ranging from 1 to 25 years. Some of our lease agreements include options to renew, extend or early terminate the leases. Lease term is the non-cancellable period of a lease, adjusted by the period covered by an option to extend or terminate the lease if we are reasonably certain to exercise (or not exercise) that option. Our operating leases typically do not contain purchase options we expect to exercise, residual value guarantees or other material covenants. Operating leases are recorded under “Lease right of use assets”, “Short-term lease liabilities”, and “Long-term lease liabilities” on the Consolidated Balance Sheets. Finance leases are recorded under “Property, plant and equipment net”, “Long-term debt due within one year”, and “Long-term debt” on the Consolidated Balance Sheets. Operating lease right of use ("ROU") assets and lease liabilities are initially recorded at the present value of the future minimum lease payments over the lease term at the commencement date. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the lease commencement date in determining the present value of future payments. Lease payments for the initial measurement of lease ROU assets and lease liabilities include fixed payments and variable payments that depend on an index or a rate. Variable lease payments that are not index or rate based are recorded as expenses when incurred. Operating lease ROU assets are amortized on a straight-line basis over the period of the lease. Finance lease ROU assets are amortized on a straight-line basis over the shorter of their estimated useful lives of leased asset and the lease terms. See Note 18.
Long-term Debt	Long-term Debt Long-term debt is stated net of unamortized original issue premium or discount. Premiums or discounts are amortized using the effective interest method with amortization expense recorded in “Interest and debt expense, net” in the Consolidated Statements of Operations. Deferred debt issuance costs related to a recognized debt liability are presented in the Consolidated Balance Sheets as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts and are amortized using the effective interest method with amortization expense recorded in “Interest and debt expense, net” in the Consolidated Statements of Operations. See Note 15.
Asset Retirement Obligations	Asset Retirement Obligations Asset retirement obligations are recorded at their estimated fair value, and accretion expense is recognized over time as the discounted liability is accreted to its expected settlement value. Fair value is measured using expected future cash outflows discounted at our credit-adjusted risk-free interest rate, which are considered Level 3 inputs. We classify accretion expense related to asset retirement obligations as a production cost, which is included in “Cost of goods sold” in the Consolidated Statements of Operations. See Note 19.
Environmental Remediation and Other Contingencies	Environmental Remediation and Other Contingencies We record an undiscounted liability when any of the following occur: 1) a claim or assessment has been asserted, 2) a litigation has commenced, or 3) based on available information, it is probable that a claim or an assessment will be asserted or a litigation will commence; and in addition, the outcome is expected to be unfavorable to us and the associated costs can be reasonably estimated. See Note 20.
Self-Insurance	Self-Insurance We are self-insured for certain levels of general and vehicle liability, property, workers’ compensation and health care coverage. The cost of these self-insurance programs is accrued based upon estimated fully developed settlements for known and anticipated claims. Any resulting adjustments to previously recorded reserves are reflected in current operating results. We do not accrue for general or unspecific business risks.
Share-based Compensation	Share-based Compensation Equity Restricted Share and Restricted Share Unit Awards — The fair value of equity instruments is measured based on the share price on the grant date and is recognized over the vesting period. These awards contain service, market, and/or performance conditions. For awards containing only a service or a market condition, we have elected to recognize compensation costs using the straight-line method over the requisite service period for the entire award. For awards containing a market condition, the fair value of the award is measured using the Monte Carlo simulation under a lattice model approach. For awards containing a performance condition, the fair value is the grant date close price and compensation expense is not recognized until we conclude that it is probable that the performance condition will be met. We reassess the probability at least quarterly. See Note 22.
Defined Benefit Pension and Postretirement Benefit Plans	Defined Benefit Pension and Postretirement Benefit Plans We recognize the funded status of our defined benefit pension plans and postretirement benefit plans in the Consolidated Balance Sheets. The funded status is measured as the difference between the fair value of plan assets and the benefit obligation at the measurement date. The benefit obligation for the defined benefit plans is the projected benefit obligation (PBO), which represents the actuarial present value of benefits expected to be paid upon retirement based on employee services already rendered and estimated future compensation levels. The benefit obligation for our postretirement benefit plans is the accumulated postretirement benefit obligation (APBO), which represents the actuarial present value of postretirement benefits attributed to employee services already rendered. The fair value of plan assets related to our defined benefit plan represents the current market value of assets held in a trust fund, which is established for the sole benefit of plan participants. If the fair value of plan assets exceeds the benefit obligation, the plan is overfunded, and the excess is recorded as a prepaid pension asset. On the other hand, if the benefit obligation exceeds the fair value of plan assets, the plan is underfunded, and the deficit is recorded as pension and postretirement healthcare benefits obligation in the Consolidated Balance Sheet. The portion of the pension and postretirement healthcare obligations payable within the next 12 months is recorded in accrued liabilities in the Consolidated Balance Sheet. Net periodic pension and postretirement benefit cost represents the aggregation of service cost, interest cost, expected return on plan assets, amortization of prior service costs or credits and actuarial gains or losses previously recognized as a component of OCI and it is recorded in the Consolidated Statement of Operations. Net periodic cost is recorded in cost of goods sold and selling, general and administrative expenses in the Consolidated Statement of Operations based on the employees’ respective functions. Actuarial gains or losses represents the effect of remeasurement on the benefit obligation principally driven by changes in the plan actuarial assumptions. Prior service costs or credits arise from plan amendments. The actuarial gains or losses and prior service costs or credits are initially recognized as a component of Other Comprehensive income in the Consolidated Statement of Comprehensive Income (Loss). Those gains or losses and prior service costs or credits are subsequently recognized as a component of net periodic cost. The measurement of benefit obligations and net periodic cost is based on estimates and assumptions approved by management. These valuations reflect the terms of the plans and use participant-specific information such as compensation, age and years of service, as well as certain assumptions, including estimates of discount rates, expected return on plan assets, rate of compensation increases and mortality rates. Defined Contribution Plans — We recognize our contribution as expense when they are due. The expense is recorded in cost of goods sold or selling, general and administrative expenses the Consolidated Statement of Operations based on the employees’ respective functions. Multiemployer Plan — We treat our multiemployer plan like a defined contribution plan. A pension plan to which two or more unrelated employers contribute is generally considered to be a multiemployer plan. As a defined contribution plan, we recognize the contribution for the period as a net benefit cost and any contributions due and unpaid as a liability.
Recently Adopted Accounting Pronouncements and Recently Issued Accounting Pronouncements	Recently Adopted Accounting Pronouncements In December 2019, the FASB issued ASU 2019-12, Income Taxes (“Topic 740”): Simplifying the Accounting for Income Taxes. The standard simplifies the accounting for income taxes by removing the exceptions to the incremental approach for intraperiod tax allocation, the requirement to recognize deferred tax liability for equity method investments, the ability not to recognize a deferred tax liability for a foreign subsidiary when a foreign equity method investment becomes a subsidiary, and the general methodology for calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year. This standard is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2020 with early adoption permitted. The adoption of this standard did not have a material impact on our consolidated financial statements. Recently Issued Accounting Pronouncements

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Estimated Useful Lives for Property, Plant and Equipment	Property, plant and equipment, net is stated at cost less accumulated depreciation, and is depreciated over its estimated useful life using the straight-line method as follows: Land improvements 10 — 20 years Buildings 10 — 40 years Machinery and equipment 3 — 25 years Furniture and fixtures 10 years

Acquisitions and Related Dive_2

Acquisitions and Related Divestitures (Tables)	12 Months Ended
	Dec. 31, 2021
Business Combination and Asset Acquisition [Abstract]
Pro Forma Information	In accordance with ASC 805, the supplemental pro forma results of operations for the year ended December 31, 2019, as if the Cristal Transaction had occurred on January 1, 2018, are as follows: Year Ended December 31, 2019 Net Sales $ 3,008 Net income from continuing operations attributable to Tronox Holdings plc $ 18

Restructuring Initiatives (Tabl

Restructuring Initiatives (Tables)	12 Months Ended
	Dec. 31, 2021
Restructuring and Related Activities [Abstract]
Schedule of Liability Balance for Restructuring	The liability balance for restructuring as of December 31, 2021, 2020 and 2019, which is recorded within “Accrued liabilities” in the Consolidated Balance Sheet, is as follows: Employee-Related Costs Balance, January 1, 2019 $ — Charges 22 Cash payments (12) Balance, December 31, 2019 $ 10 Charges 3 Cash payments (11) Balance, December 31, 2020 $ 2 Cash payments (1) Balance, December 31, 2021 $ 1

Revenue (Tables)

Revenue (Tables)	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	Net sales to external customers by geographic areas where our customers are located were as follows: Year Ended December 31, 2021 2020 2019 North America $ 743 $ 716 $ 696 South and Central America 252 181 164 Europe, Middle-East and Africa 1,398 1,013 954 Asia Pacific 1,179 848 828 Total net sales $ 3,572 $ 2,758 $ 2,642 Net sales from external customers for each similar type of product were as follows: Year Ended December 31, 2021 2020 2019 TiO 2 $ 2,793 $ 2,176 $ 2,049 Zircon 478 283 290 Feedstock and other products 301 299 303 Total net sales $ 3,572 $ 2,758 $ 2,642

Discontinued Operations and O_2

Discontinued Operations and Other Disposition (Tables)	12 Months Ended
	Dec. 31, 2021
Discontinued Operations and Disposal Groups [Abstract]
Summary of Operations of Discontinued Operation	The following table presents a summary of the operations of Cristal’s North American TiO 2 business and Cristal Metals line items constituting the "Income from discontinued operations, net of tax" in our Consolidated Statements of Operations for the year ended December 31, 2019. There were no discontinued operations in 2021 and 2020. Year ended December 31, 2019 Net sales $ 41 Cost of goods sold 29 Gross profit 12 Selling, general and administrative expense and other expenses 5 Income before income taxes 7 Income tax provision 2 Income from discontinued operations, net of tax $ 5

Other Income, Net (Tables)

Other Income, Net (Tables)	12 Months Ended
	Dec. 31, 2021
Other Income and Expenses [Abstract]
Other Income (Expense), Net	Other income, net is comprised of the following: Year Ended December 31, 2021 2020 2019 Net realized and unrealized foreign currency gains (losses) $ 16 $ 4 $ 5 Pension and postretirement benefit interest cost, expected return on assets and amortization of actuarial losses 5 1 (1) Pension and postretirement benefit settlement and curtailment gains (1) — 2 1 Insurance proceeds (2) — 11 — Breakage fee (Note 3) (3) (18) — — AMIC technical service support fee (Note 24) 8 5 — Other, net 1 3 (2) Total $ 12 $ 26 $ 3 _____________________ (1) 2020 and 2019 amounts are curtailment gains related to our former U.S. Pension Plan (acquired as part of the Cristal transaction). See Note 23. (2) 2020 amount represents reimbursement from claims related to the Ginkgo concentrator failure we inherited as a part of the Cristal Transaction. (3) 2021 amount represents the breakage fee associated with the termination of the TTI acquisition. See Note 3.

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income (Loss) From Continuing Operations Before Income Taxes	Income (loss) from continuing operations before income taxes is comprised of the following: Year Ended December 31, 2021 2020 2019 United Kingdom $ (16) $ (12) $ 56 International 390 126 (144) Income (loss) from continuing operations before income taxes $ 374 $ 114 $ (88)
Income Tax (Provision) Benefit	The income tax (provision) benefit is summarized below: Year Ended December 31, 2021 2020 2019 United Kingdom: Current $ (1) $ (1) $ — Deferred — (10) 11 International: Current (55) (17) (23) Deferred (15) 909 (2) Income tax (provision) benefit $ (71) $ 881 $ (14)
Effective Income Tax Rate Reconciliation	The following table reconciles the applicable statutory income tax rates to our effective income tax rates for “Income tax (provision) benefit” as reflected in the Consolidated Statements of Operations. Year Ended December 31, 2021 2020 2019 Statutory tax rate 19 % 19 % 19 % Increases (decreases) resulting from: Tax rate differences 7 10 5 Disallowable expenditures 2 17 (29) Valuation allowances (27) (849) (44) Corporate reorganization 17 (96) — Tax rate changes 2 (8) 17 State and local taxes 1 5 (7) Prior year accruals (2) 131 24 Branch taxation — — (1) Withholding taxes 2 — (2) Tax credits (2) (2) 3 Deferred gross margin — — (4) Other, net — — 3 Effective tax rate 19 % (773) % (16) %
Net Deferred Tax Assets (Liabilities)	Net deferred tax assets (liabilities) at December 31, 2021 and 2020 were comprised of the following: December 31, 2021 2020 Deferred tax assets: Net operating loss and other carryforwards $ 1,720 $ 1,788 Property, plant and equipment, net 107 153 Reserves for environmental remediation and restoration 43 46 Obligations for pension and other employee benefits 58 57 Investments 4 3 Grantor trusts 636 637 Inventories, net 8 8 Interest 214 232 Lease liabilities 23 21 Other accrued liabilities 3 6 Foreign exchange 9 1 Other 7 8 Total deferred tax assets 2,832 2,960 Valuation allowance associated with deferred tax assets (1,728) (1,826) Net deferred tax assets 1,104 1,134 Deferred tax liabilities: Inventories, net (5) (2) Property, plant and equipment, net (216) (226) Intangible assets, net (22) (30) Lease assets (24) (22) Foreign exchange (1) — Other (8) (10) Total deferred tax liabilities (276) (290) Net deferred tax asset $ 828 $ 844 Balance sheet classifications: Deferred tax assets — long-term $ 985 $ 1,020 Deferred tax liabilities — long-term $ (157) $ (176) Net deferred tax asset $ 828 $ 844
Changes in Valuation Allowance by Jurisdiction	The table below sets forth the changes, by jurisdiction: December 31, 2021 2020 2019 United Kingdom $ (1) $ (1) $ (2) United States (19) (944) 54 Australia (43) (17) 89 The Netherlands (24) 2 — Saudi Arabia (11) 11 — Brazil — (14) 14 Switzerland — — 15 Belgium — (2) 2 Total (decrease) increase in valuation allowances $ (98) $ (965) $ 172
Expiration of Tax Loss Carryforwards	In the United States, the deferred tax assets generated by tax loss carryforwards are partially offset by a valuation allowance to the extent they are subject to expiration. The expiration of these carryforwards at December 31, 2021 is shown below. The Australian, Saudi Arabian, French, Brazilian and United Kingdom tax loss carryforwards do not expire. 2022 2023 2024 2025 2026 2027 - 2040 Unlimited Total Tax Loss Carryforwards United Kingdom $ — $ — $ — $ — $ — $ — $ (51) $ (51) Australia — — — — — — (355) (355) The Netherlands — — — — — — (100) (100) France — — — — — — (214) (214) Saudi Arabia — — — — — — (23) (23) Switzerland (100) (80) — — — (1) — (181) U.S. Federal — — — — — (3,988) (334) (4,322) U.S. State (3) (28) (12) (41) (76) (4,027) (18) (4,205) Total tax loss carryforwards $ (103) $ (108) $ (12) $ (41) $ (76) $ (8,016) $ (1,095) $ (9,451)

Income (Loss) Per Share (Tables

Income (Loss) Per Share (Tables)	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Computation of Basic and Diluted Loss per Share	The computation of basic and diluted income per share for the periods indicated is as follows: Year Ended December 31, 2021 2020 2019 Numerator – Basic and Diluted: Net income (loss) from continuing operations $ 303 $ 995 $ (102) Less: Net income from continuing operations attributable to noncontrolling interest 17 26 12 Undistributed net income (loss) from continuing operations attributable to Tronox Holdings plc 286 969 (114) Net income from discontinued operations available to ordinary shares — — 5 Net income (loss) available to ordinary shares $ 286 $ 969 $ (109) Denominator – Basic and Diluted: Weighted-average ordinary shares, basic (in thousands) 152,056 143,355 139,859 Weighted-average ordinary shares, diluted (in thousands) 157,945 144,906 139,859 Net income (loss) per Ordinary Share: Basic net income (loss) from continuing operations per ordinary share $ 1.88 $ 6.76 $ (0.81) Basic net income (loss) from discontinued operations per ordinary share — — 0.03 Basic net income (loss) per ordinary share $ 1.88 $ 6.76 $ (0.78) Diluted net income (loss) from continuing operations per ordinary share $ 1.81 $ 6.69 $ (0.81) Diluted net income (loss) from discontinued operations per ordinary share — — 0.03 Diluted net income (loss) per ordinary share $ 1.81 $ 6.69 $ (0.78)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	Anti-dilutive shares not recognized in the diluted net income per share calculation for the years ended December 31, 2021, 2020 and 2019 were as follows: Shares 2021 2020 2019 Options 414,296 1,201,891 1,260,902 Restricted share units — 1,054,994 5,557,659

Inventories, net (Tables)

Inventories, net (Tables)	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Inventories, Net	Inventories, net consisted of the following: December 31, 2021 2020 Raw materials $ 265 $ 170 Work-in-process 117 103 Finished goods, net 461 668 Materials and supplies, net 205 196 Inventories, net $ 1,048 $ 1,137

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Net of Accumulated Depreciation	Property, plant and equipment, net of accumulated depreciation, consisted of the following: December 31, 2021 2020 Land and land improvements $ 188 $ 189 Buildings 365 368 Machinery and equipment 2,234 2,197 Construction-in-progress 263 192 Other 73 86 Total 3,123 3,032 Less: accumulated depreciation (1,413) (1,273) Property, plant and equipment, net $ 1,710 $ 1,759
Depreciation Expense Related to Property, Plant and Equipment	The table below summarizes depreciation expense related to property, plant and equipment for the periods presented, recorded in the specific line items in our Consolidated Statements of Operations: Year Ended December 31, 2021 2020 2019 Cost of goods sold $ 222 $ 233 $ 189 Selling, general and administrative expenses 5 5 5 Total $ 227 $ 238 $ 194

Mineral Leaseholds, net (Tables

Mineral Leaseholds, net (Tables)	12 Months Ended
	Dec. 31, 2021
Extractive Industries [Abstract]
Mineral Leaseholds, Net of Accumulated Depletion	Mineral leaseholds, net of accumulated depletion, consisted of the following: December 31, 2021 2020 Mineral leaseholds $ 1,306 $ 1,333 Less accumulated depletion (559) (530) Mineral leaseholds, net $ 747 $ 803

Intangible Assets, net (Tables)

Intangible Assets, net (Tables)	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets, Net of Accumulated Amortization	Intangible Assets, net of accumulated amortization, consisted of the following: December 31, 2021 December 31, 2020 Gross Cost Accumulated Amortization Net Carrying Amount Gross Cost Accumulated Amortization Net Carrying Amount Customer relationships $ 291 $ (211) $ 80 $ 291 $ (193) $ 98 TiO 2 technology 93 (31) 62 93 (24) 69 Internal-use software and other 120 (45) 75 73 (39) 34 Intangible assets, net $ 504 $ (287) $ 217 $ 457 $ (256) $ 201
Amortization Expense Related to Intangible Assets	The table below summarizes amortization expense related to intangible assets for the periods presented, recorded in the specific line items in our Consolidated Statements of Operations: Year Ended December 31, 2021 2020 2019 Cost of goods sold $ 2 $ 2 $ 2 Selling, general and administrative expenses 31 31 28 Total $ 33 $ 33 $ 30

Balance Sheet and Cash Flows _2

Balance Sheet and Cash Flows Supplemental Information (Tables)	12 Months Ended
	Dec. 31, 2021
Payables and Accruals [Abstract]
Accrued Liabilities	Accrued liabilities consisted of the following: December 31, 2021 2020 Employee-related costs and benefits $ 155 $ 133 Related party payables 1 7 Interest 20 21 Sales rebates 36 43 Restructuring 1 2 Taxes other than income taxes 18 16 Asset retirement obligations 10 9 Interest rate swaps 25 57 Other accrued liabilities 62 62 Accrued liabilities $ 328 $ 350
Schedule of Cash Flow, Supplemental Disclosures	Additional supplemental cash flow information for the year ended and as of December 31, 2021, 2020 and 2019 is as follows: Year Ended December 31, Supplemental non cash information: 2021 2020 2019 Operating activities - MGT sales made to AMIC $ 4 $ — $ — Operating activities - Interest expense on MGT loan $ 1 $ — $ — Investing activities - Acquisition of MGT assets $ — $ 36 $ — Financing activities - debt assumed in the acquisition of MGT assets $ — $ 36 $ — Financing activities - Acquisition of noncontrolling interest $ 125 $ — $ — Financing activities - Repayment of MGT loan $ 3 $ — $ — December 31, 2021 December 31, 2020 December 31, 2019 Capital expenditures acquired but not yet paid $ 75 $ 37 $ 23

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Long-Term Debt, Net of Unamortized Discount and Debt Issuance Costs	Long-term debt, net of an unamortized discount and debt issuance costs, consisted of the following: Original Annual Maturity December 31, December 31, Prior Term Loan Facility, net of unamortized discount (1) $ 2,150 Variable 9/22/2024 $ — $ 1,607 New Term Loan Facility, net of unamortized discount (1) 1,300 Variable 3/11/2028 897 — Senior Notes due 2025 450 5.75 % 10/1/2025 — 450 Senior Notes due 2026 615 6.50 % 4/15/2026 — 615 Senior Notes due 2029 1,075 4.63 % 3/15/2029 1,075 — 6.5% Senior Secured Notes due 2025 500 6.50 % 5/1/2025 500 500 Prior Standard Bank Term Loan Facility (1) 222 Variable 3/25/2024 — 115 New Standard Bank Term Loan Facility (1) 98 Variable 11/11/2026 92 — Tikon Loan N/A Variable 5/23/2021 — 17 Australian Government Loan, net of unamortized discount N/A N/A 12/31/2036 1 1 MGT Loan (2) 36 Variable Refer below 33 36 Finance leases 14 15 Long-term debt 2,612 3,356 Less: Long-term debt due within one year (18) (58) Debt issuance costs (36) (35) Long-term debt, net $ 2,558 $ 3,263 (1) The average effective interest rate, including impacts of our interest rate swap, for the New Term Loan Facility was 5.1% for the year ended December 31, 2021. The average effective interest rate, including impacts of our interest rate swap, for the Prior Term Loan Facility was 4.6% for the year ended December 31, 2020. The average effective interest rate on the New Standard Bank Term Loan Facility was 7.3% for the year ended December 31, 2021. The average effective interest rate on the Prior Standard Bank Term Loan Facility was 7.8% for the year ended December 31, 2020. (2) The MGT loan is a related party debt facility. Average effective interest rate on the MGT loan was 3.1% d uring the year ended December 31, 2021. Refer below for further details.
Schedule of Maturities of Long-term Debt	At December 31, 2021, the scheduled maturities of our long-term debt were as follows: Total Borrowings 2022 18 2023 18 2024 18 2025 518 2026 58 Thereafter 1,987 Total 2,617 Remaining accretion associated with the New Term Loan Facility and Australian Government Loan (5) Total borrowings 2,612
Interest and Debt Expense, Net	Interest and debt expense, net in the Consolidated Statements of Operations consisted of the following: Year Ended December 31, 2021 2020 2019 Interest on debt $ 148 $ 174 $ 186 Amortization of deferred debt issuance costs and discounts on debt 11 10 8 Capitalized interest (7) (2) (1) Interest on capital leases and letters of credit and commitments 5 7 8 Total interest and debt expense, net $ 157 $ 189 $ 201

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fair Value of Derivatives Outstanding	The following table is a summary of the fair value of derivatives outstanding at December 31, 2021 and 2020: Fair Value December 31, 2021 December 31, 2020 Assets(a) Accrued Liabilities Assets(a) Accrued Liabilities Derivatives Designated as Cash Flow Hedges Currency Contracts $ 3 $ 1 $ 58 $ — Interest Rate Swaps $ — $ 25 $ — $ 57 Natural Gas Hedges $ 1 $ — $ — $ — Total Hedges $ 4 $ 26 $ 58 $ 57 Derivatives Not Designated as Cash Flow Hedges Currency Contracts $ — $ — $ 7 $ — Total Derivatives $ 4 $ 26 $ 65 $ 57
Schedule of Derivatives Instruments Impact on Statement of Operations	The following table summarizes the impact of the Company's derivatives on the Consolidated Statement of Operations: Amount of Pre-Tax Gain (Loss) Recognized in Earnings Revenue Cost of Goods Sold Other Income, net Revenue Cost of Goods Sold Other Income, net Revenue Cost of Goods Sold Other Income, net Year Ended December 31, 2021 Year Ended December 31, 2020 Year Ended December 31, 2019 Derivatives Not Designated as Hedging Instruments Currency Contracts $ — $ — $ 1 $ — $ — $ 4 $ — $ — $ 7 Derivatives Designated as Hedging Instruments Currency Contracts $ (3) $ 35 $ — $ (7) $ 3 $ — $ 5 $ 3 $ — Natural Gas $ — $ 3 $ — $ — $ (1) $ — $ — $ — $ — Total Derivatives $ (3) $ 38 $ 1 $ (7) $ 2 $ 4 $ 5 $ 3 $ 7

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value, by Balance Sheet Grouping	The following table presents the fair value of our debt and derivative contracts at both December 31, 2021 and December 31, 2020: December 31, December 31, Prior Term Loan Facility $ — $ 1,610 New Term Loan Facility 895 — Prior Standard Bank Term Loan Facility — 115 New Standard Bank Term Loan Facility 92 — Senior Notes due 2025 — 468 Senior Notes due 2026 — 641 Senior Notes due 2029 1,071 — 6.5% Senior Secured Notes due 2025 526 536 Tikon Loan — 17 Australian Government Loan 1 1 MGT Loan 33 36 Interest rate swaps 25 57 Foreign currency contracts, net 2 65

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Lease Costs	Lease expense for the year ended December 31, 2021, 2020 and 2019 was comprised of the following: Year Ended December 31, 2021 2020 2019 Operating lease expense $ 47 $ 48 $ 41 Finance lease expense: Amortization of right-of-use assets 1 1 $ 1 Interest on lease liabilities 2 2 $ 2 Short term lease expense 30 26 $ 22 Variable lease expense 23 22 $ 20 Total lease expense $ 103 $ 99 $ 86 The table below summarizes lease expense for the year ended December 31, 2021, 2020 and 2019 recorded in the specific line items in our Consolidated Statements of Operations: Year Ended December 31, 2021 2020 2019 Cost of goods sold $ 98 $ 91 $ 80 Selling, general and administrative expenses 5 8 6 Total $ 103 $ 99 $ 86 The weighted-average remaining lease term in years and weighted-average discount rates at December 31, 2021 and 2020 were as follows: December 31, 2021 December 31, 2020 Weighted-average remaining lease term: Operating leases 8.7 3.3 Finance leases 8.8 9.6 Weighted-average discount rate: Operating leases 7.4 % 7.7 % Finance leases 14.1 % 14.2 % Additional information relating to cash flows and ROU assets for the year ended December 31, 2021, 2020 and 2019 is as follows: December 31, 2021 December 31, 2020 December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 51 $ 55 $ 41 Operating cash flows used for finance leases $ 2 $ 2 $ 2 Financing cash flows used for finance leases $ 1 $ 1 $ 1
Maturities of Operating Lease Liabilities	The maturity analysis for operating leases and finance leases at December 31, 2021 were as follows: Operating Leases Finance Leases 2022 30 3 2023 15 3 2024 12 3 2025 8 3 2026 6 3 Thereafter 44 11 Total lease payments 115 26 Less: imputed interest (34) (12) Present value of lease payments $ 81 $ 14
Maturities of Finance Lease Liabilities	The maturity analysis for operating leases and finance leases at December 31, 2021 were as follows: Operating Leases Finance Leases 2022 30 3 2023 15 3 2024 12 3 2025 8 3 2026 6 3 Thereafter 44 11 Total lease payments 115 26 Less: imputed interest (34) (12) Present value of lease payments $ 81 $ 14
Additional Information Relating to ROU Assets	Additional information relating to ROU assets for the year ended December 31, 2021 and 2020 is as follows: Year Ended December 31, 2021 2020 ROU assets obtained in exchange for lease obligations: Operating leases obtained in the normal course of business $ 49 $ 29 Finance leases obtained in the normal course of business $ 2 $ —

Asset Retirement Obligations (T

Asset Retirement Obligations (Tables)	12 Months Ended
	Dec. 31, 2021
Asset Retirement Obligation Disclosure [Abstract]
Schedule of Change in Asset Retirement Obligation	Activity related to asset retirement obligations was as follows: Year Ended December 31, 2021 2020 Balance, January 1 $ 166 $ 158 Additions 5 1 Accretion expense 12 12 Remeasurement/translation (9) 7 Changes in estimates, including cost and timing of cash flows (15) (1) Settlements/payments (10) (15) Other acquisition and divestiture related — 4 Balance, December 31 $ 149 $ 166 December 31, 2021 2020 Asset retirement obligations were classified as follows: Current portion included in “Accrued liabilities” $ 10 $ 9 Noncurrent portion included in “Asset retirement obligations” 139 157 Asset retirement obligations $ 149 $ 166

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) Attributable to Tronox Holdings plc and Other Equity Items (Tables)	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Changes in Accumulated Other Comprehensive Income (Loss) by Component	The tables below present changes in accumulated other comprehensive income (loss) by component for 2021, 2020 and 2019. Cumulative Translation Adjustment Pension Liability Adjustment Unrealized Gains (losses) on Derivatives Total Balance, January 1, 2019 $ (445) $ (95) $ — $ (540) Other comprehensive income (loss) 3 (11) 8 — Acquisition of noncontrolling interest (61) — — (61) Amounts reclassified from accumulated other comprehensive income (loss) — 2 (7) (5) Balance, December 31, 2019 (503) (104) 1 (606) Other comprehensive income (loss) 12 (20) (4) (12) Amounts reclassified from accumulated other comprehensive income (loss) — 4 4 8 Balance, December 31, 2020 $ (491) $ (120) $ 1 $ (610) Other comprehensive income (loss) (103) 16 21 (66) Acquisition of noncontrolling interest (34) — — (34) Amounts reclassified from accumulated other comprehensive income (loss) — 4 (32) (28) Balance, December 31, 2021 $ (628) $ (100) $ (10) $ (738)

Share-based Compensation (Table

Share-based Compensation (Tables)	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Share-based Compensation Expense	Share-based compensation expense consisted of the following: Year Ended December 31, 2021 2020 2019 Total share-based compensation expense (continuing operations) from restricted shares and restricted share units $ 31 $ 30 $ 32
Weighted-Average Assumptions Utilized to Value Grants	The following weighted-average assumptions were utilized to value the grants in 2021, 2020 and 2019: 2021 2020 2019 Dividend yield 1.56 % 2.13 % N/A Expected historical volatility 71.10 % 58.30 % 67.20 % Risk free interest rate 0.17 % 1.42 % 2.50 % Expected life (in years) 3 3 3
Summary of Activity for Restricted Stock Share Units (RSUs)	The following table presents a summary of activity for RSUs for 2021: Number of Shares Weighted Average Grant Date Fair Value Outstanding, January 1, 2021 7,303,905 $ 12.39 Granted 1,339,025 20.91 Vested (2,845,305) 14.49 Forfeited (682,680) 15.16 Outstanding, December 31, 2021 5,114,945 $ 13.12 Expected to vest, December 31, 2021 7,049,472 $ 13.58
Summary of Activity for Options	The following table presents a summary of option activity for 2021: Number of Options Weighted Average Exercise Price Weighted Average Contractual Life (years) Intrinsic Value Outstanding, January 1, 2021 1,201,891 $ 21.60 2.19 $ — Exercised (424,832) 20.25 Forfeited — — Expired (20,732) 28.26 Outstanding and Exercisable, December 31, 2021 756,327 $ 22.13 1.30 $ 2

Pension and Other Postretirem_2

Pension and Other Postretirement Healthcare Benefits (Tables)	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Schedule of Multiemployer Plans	The following table outlines the details of our participation in the CDC Plan for the year ended December 31, 2021. The CDC disclosures provided herein are based on the fund’s 2020 annual report, which is the most recently available public information. Based on the total plan assets and accumulated benefit obligation information in the plan’s annual report, the zone status was green as of December 31, 2020. A green zone status indicates that the plan was at least 80 percent funded. The “FIP/RP Status Pending/Implemented” column indicates whether a financial improvement plan (FIP) or a rehabilitation plan (RP) is either pending or has been implemented. As of December 31, 2021, we are not aware of any financial improvement or rehabilitation plan being implemented or pending. The last column lists the expiration date of the collective-bargaining agreement to which the plan is subject. Pension Protection Act Zone Status Tronox Contributions Pension Fund EIN/Pension Plan Number 2021 2020 FIP/RP Pending/ Implemented 2021 2020 Surcharge Imposed Expiration date of Collective- Bargaining Agreement PGB NA N/A Green No $ 5 $ 5 No 12/31/2024
Benefit Obligations and Plan Assets Associated With Benefit Plans	Benefit Obligations and Funded Status — The following provides a reconciliation of beginning and ending benefit obligations, beginning and ending plan assets, funded status, and balance sheet classification of our U.S. and international pension plans and other post-retirement benefit plans ("OPEB") as of and for the years ended December 31, 2021 and 2020. The benefit obligations and plan assets associated with our principal benefit plans are measured on December 31. Pensions Other Post Retirement Benefit Plans December 31 December 31 2021 2020 2021 2020 US International US International US International US International Change in benefit obligations: Benefit obligation, beginning of year $ 399 $ 252 $ 398 $ 232 $ 2 $ 23 $ 2 $ 13 Service cost — 4 1 4 — 1 — — Interest cost 10 4 12 5 — 2 — 1 Net actuarial (gains) losses (10) (10) 28 20 — (3) — 3 Curtailments — — (2) — — — — (1) Settlements — — (7) (6) — — — — Plan amendments (1) — — — — — (4) — 9 Foreign currency rate changes — (2) — 6 — (2) — (2) Benefits paid (30) (14) (31) (9) — (1) — — Benefit obligation, end of year (2) 369 234 399 252 2 16 2 23 Change in plan assets: Fair value of plan assets, beginning of year 344 195 319 186 — — — — Actual return on plan assets 23 (3) 41 15 — — — — Employer contributions — 6 22 3 — 1 — — Benefits paid (30) (14) (31) (9) — (1) — — Foreign currency rate changes — (1) — 6 — — — — Settlements — — (7) (6) — — — — Fair value of plan assets, end of year 337 183 344 195 — — — — Net underfunded status of plans $ (32) $ (51) $ (55) $ (57) $ (2) $ (16) $ (2) $ (23) Classification of amounts recognized in the Consolidated Balance Sheets: Other long-term assets $ — $ 20 $ — $ 14 $ — $ — $ — $ — Accrued liabilities — (4) — (5) (1) — — — Pension and postretirement healthcare benefits (32) (67) (55) (66) (1) (16) (2) (23) Total liabilities (32) (71) (55) (71) (2) (16) (2) (23) Accumulated other comprehensive (income) loss 81 10 98 12 — 3 — 12 Total $ 49 $ (41) $ 43 $ (45) $ (2) $ (13) $ (2) $ (11) ________________ (1) Relates to a plan amendment entered into during both 2021 and 2020 related to the Brazil Medical Plan. (2) Since the benefits under the U.S Qualified Plan and the U.K. DB Scheme are frozen, the projected benefit obligation and accumulated benefit obligation are the same.
Schedule of Accumulated and Projected Benefit Obligations	The following table provides information for pension plans where the accumulated benefit obligation exceeds the fair value of the plan assets: Pensions 2021 US International Projected benefit obligation (PBO) $ 369 $ 71 Accumulated benefit obligation (ABO) $ 369 $ 47 Fair value of plan assets $ 337 $ —
Expected Benefit Payments	Expected Benefit Payments — The following table shows the expected cash benefit payments for the next five years and in the aggregate for the years 2027 through 2031: 2022 2023 2024 2025 2026 2027-2031 Pensions - US $ 32 $ 29 $ 28 $ 27 $ 26 $ 115 Pensions - International $ 11 $ 9 $ 10 $ 11 $ 11 $ 57 Other Post Retirement Benefit Plans - US $ — $ — $ — $ — $ — $ 1 Other Post Retirement Benefit Plans - International $ — $ — $ 1 $ 1 $ 1 $ 6
Components of Net Periodic Cost Associated with the U.S. Defined Benefit Plans and The foreign Defined Plan	The table below presents the components of net periodic cost associated with the U.S. and foreign plans recognized in the Consolidated Statements of Operations for 2021, 2020, and 2019: Pensions Other Postretirement Benefit Plans Year Ended December 31, Year Ended December 31, 2021 2020 2019 2021 2020 2019 Net periodic cost: Service cost $ 4 $ 5 $ 4 $ 1 $ — $ — Interest cost (1) 14 17 21 2 1 1 Expected return on plan assets (1) (26) (22) (22) — — — Net amortization of actuarial loss (1) 5 4 2 1 — — Settlement losses (gains) (1) — — (1) — — — Curtailment (gains) (1) — (2) — — — — Total net periodic cost - continuing operations $ (3) $ 2 $ 4 $ 4 $ 1 $ 1 ________________ (1) Recorded in Other income, net in the Consolidated Statement of Operations.
Weighted Average Assumptions Used to Determine Net Periodic Cost and Benefit Obligations	The following weighted average assumptions were used to determine net periodic cost: Pension 2021 2020 2019 US International US International US International Discount rate 2.60 % 1.47 % 3.39 % 1.98 % 4.34 % 2.50 % Expected return on plan assets 6.70 % 2.50 % 6.03 % 2.50 % 5.69 % 3.00 % OPEB 2021 2020 2019 US International US International US International Discount rate 2.59 % 10.19 % 3.36 % 8.72 % 4.00 % 10.25 % Expected return on plan assets N/A N/A N/A N/A N/A N/A The following weighted average assumptions were used in estimating the actuarial present value of benefit obligations: Pensions 2021 2020 2019 US International US International US International Discount rate 2.97 % 1.87 % 2.60 % 1.45 % 3.39 % 1.98 % Rate of compensation increase N/A 4.68 % 3.00 % 4.65 % 3.00 % 4.67 % OPEB 2021 2020 2019 US International US International US International Discount rate 2.83 % 10.33 % 2.59 % 9.51 % 3.36 % 9.91 % Rate of compensation increase N/A N/A N/A N/A N/A N/A
Asset Categories and Associated Asset Allocations for the Company's Funded Retirement Plans	Tronox's U.S. and international pension plans’ weighted-average asset allocations at December 31, 2021 and 2020, and the target asset allocation ranges, by major asset category, are as follows: December 31, 2021 2020 US International US International Actual Target Actual Target Actual Target Actual Target Equity securities 49 % 49 % — % — % 43 % 42 % — % — % Debt securities 46 48 43 43 39 40 39 30 Real estate 1 — — — 1 — — — Other 4 3 57 57 17 18 61 70 Total 100 % 100 % 100 % 100 % 100 % 100 % 100 % 100 %
Fair values of pension investments	The fair values of pension investments as of December 31, 2021 are summarized below: Fair Value Measurement at December 31, 2021 Using: Quoted Prices Significant Other Significant Total Asset category: Equities securities: Global equity securities $ 93 (1) $ — $ — $ 93 Global comingled equity funds 73 (2) — — 73 Debt securities: US government bonds 81 (3) — — 81 Foreign government bonds 39 (3) — — 39 US corporate bonds — 73 (4) — 73 Foreign corporate bonds — 42 (4) — 42 Real Estate: Property/ real estate fund — 1 (5) — 1 Other: Insurance contracts — — 98 (7) 98 Cash & cash equivalents 19 (6) — — 19 Total at fair value $ 305 $ 116 $ 98 $ 519 ________________ (1) For global equity securities, this category is comprised of shares of common stock in both U.S. and international companies from a diverse set of industries and size. Common stock is valuated at the closing market price reported on a U.S. or international exchange where the security is actively traded. Equity securities are classified within level 1 of the fair value hierarchy. (2) Global commingled equity funds are comprised of managed funds that invest in common stock of both U.S. and international companies shares from a diverse set of industries and size. Common stock are valued at the closing market price reported on a U.S. or international exchange where the security is actively traded. These funds are classified within level 1 of the fair value hierarchy. (3) For US and foreign government bonds, this category includes U.S. treasuries, U.S. federal agency obligations and international government debt. The fair value of these investments are based on observable quoted prices on active exchanges, which are level 1 inputs. (4) For US corporate bonds and foreign corporate bonds, this category is comprised of corporate bonds of U.S. and foreign companies from a diverse set of industries and size. The fair values for the U.S. and foreign corporate bonds are determined using quoted prices of similar securities in active markets and observable data or broker or dealer quotations. The fair values for these investments are classified as level 2 within the valuation hierarchy. (5) For property / real estate funds, this category includes real estate properties, partnership equities and investments in operating companies. The fair value of the assets is determined using discounted cash flows by estimating an income stream for the property plus a reversion into a present value at a risk adjusted rate. Yield rates and growth assumptions utilized are derived from market transactions as well as other financial and industry data. The fair value of these investments are classified as level 2 in the valuation hierarchy. (6) Cash and cash equivalents include cash and short-interest bearing investments with maturities of three months or less. Investments are valued at cost plus accrued interest. Cash and cash equivalents are classified within level 1 of the valuation hierarchy. (7) For insurance contracts, the fair value is estimated as the cost of purchasing equivalent annuities on terms consistent with those currently available in the market. The contracts are with highly rated insurance companies and are classified within level 3 of the valuation hierarchy. The following table summarizes changes in fair value of the pension plan assets classified as level 3 for the year ended December 31, 2021: Insurance Contracts Balance, December 31, 2020 $ 111 Actual return on plan assets (6) Purchases, sales, settlements (6) Transfers in/out of Level 3 — Foreign currency translation (1) Balance, December 31, 2021 $ 98 The fair values of pension investments as of December 31, 2020 are summarized below: Fair Value Measurement at December 31, 2020, Using: Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Asset category: Equities securities: Global equity securities $ 83 (1) $ — $ — $ 83 Global comingled equity funds 66 (2) — — 66 Debt securities: US government bonds 70 (3) — — 70 Foreign government bonds 37 (3) — — 37 US corporate bonds — 62 (4) — 62 Foreign corporate bonds — 43 (4) — 43 Real Estate: Property/ real estate fund — 1 (5) — 1 Other: Insurance contracts — — 111 (7) 111 Cash & cash equivalents 66 (6) — — 66 Total at fair value $ 322 $ 106 $ 111 $ 539 ________________ (1) For global equity securities, this category is comprised of shares of common stock in both U.S. and international companies from a diverse set of industries and size. Common stock is valuated at the closing market price reported on a U.S. or international exchange where the security is actively traded. Equity securities are classified within level 1 of the fair value hierarchy. (2) Global commingled equity funds are comprised of managed funds that invest in common stock of both U.S. and international companies shares from a diverse set of industries and size. Common stock are valued at the closing market price reported on a U.S. or international exchange where the security is actively traded. These funds are classified within level 1 of the fair value hierarchy. (3) For US and foreign government bonds, this category includes U.S. treasuries, U.S. federal agency obligations and international government debt. The fair value of these investments are based on observable quoted prices on active exchanges, which are level 1 inputs. (4) For US corporate bonds and foreign corporate bonds, this category is comprised of corporate bonds of U.S. and foreign companies from a diverse set of industries and size. The fair values for the U.S. and foreign corporate bonds are determined using quoted prices of similar securities in active markets and observable data or broker or dealer quotations. The fair values for these investments are classified as level 2 within the valuation hierarchy. (5) For property / real estate funds, this category includes real estate properties, partnership equities and investments in operating companies. The fair value of the assets is determined using discounted cash flows by estimating an income stream for the property plus a reversion into a present value at a risk adjusted rate. Yield rates and growth assumptions utilized are derived from market transactions as well as other financial and industry data. The fair value of these investments are classified as level 2 in the valuation hierarchy. (6) Cash and cash equivalents include cash and short-interest bearing investments with maturities of three months or less. Investments are valued at cost plus accrued interest. Cash and cash equivalents are classified within level 1 of the valuation hierarchy. (7) For insurance contracts, the fair value is estimated as the cost of purchasing equivalent annuities on terms consistent with those currently available in the market. The contracts are with highly rated insurance companies and are classified within level 3 of the valuation hierarchy. The following table summarizes changes in fair value of the pension plan assets classified as level 3 for the year ended December 31, 2020: Insurance Contracts Balance, December 31, 2019 $ 104 Actual return on plan assets 9 Purchases, sales, settlements (5) Transfers in/out of Level 3 — Foreign currency translation 3 Balance, December 31, 2020 $ 111

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Net Sales to External Customers, by Geographic Region, Based on Country of Production	Net sales to external customers based on country of production, were as follows: Year Ended December 31, 2021 2020 2019 U.S. operations $ 716 $ 653 $ 676 International operations: United Kingdom 396 301 218 Australia 873 637 674 South Africa 441 330 370 Saudi Arabia 420 269 218 Other - international 726 568 486 Total net sales $ 3,572 $ 2,758 $ 2,642
Property, Plant and Equipment, Net and Mineral Leaseholds, Net, by Geographic Region	Property, plant and equipment, net, mineral leaseholds, net, and lease right of use assets, net by geographic region, were as follows: December 31, 2021 2020 U.S. operations $ 251 $ 261 International operations: United Kingdom 97 101 Saudi Arabia 241 262 South Africa 705 768 Australia 1,000 995 Other - international 248 256 Total $ 2,542 $ 2,643

Significant Accounting Polici_4

Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Research and development expenses	$ 13	$ 12	$ 17
Cash and Cash Equivalents [Line Items]
Restricted cash	$ 4	29
Minimum
Finite-Lived Intangible Assets, Net [Abstract]
Finite-lived intangible asset, useful life	3 years
Lessee, Lease, Description [Line Items]
Lease term	1 year
Maximum
Finite-Lived Intangible Assets, Net [Abstract]
Finite-lived intangible asset, useful life	20 years
Lessee, Lease, Description [Line Items]
Lease term	25 years
Land improvements | Minimum
Long Lived Assets [Abstract]
Estimated useful life	10 years
Land improvements | Maximum
Long Lived Assets [Abstract]
Estimated useful life	20 years
Buildings | Minimum
Long Lived Assets [Abstract]
Estimated useful life	10 years
Buildings | Maximum
Long Lived Assets [Abstract]
Estimated useful life	40 years
Machinery and equipment | Minimum
Long Lived Assets [Abstract]
Estimated useful life	3 years
Machinery and equipment | Maximum
Long Lived Assets [Abstract]
Estimated useful life	25 years
Furniture and fixtures
Long Lived Assets [Abstract]
Estimated useful life	10 years
Australia
Cash and Cash Equivalents [Line Items]
Restricted cash	$ 3
Australia | Performance Bonds
Cash and Cash Equivalents [Line Items]
Restricted cash		10
Europe
Cash and Cash Equivalents [Line Items]
Restricted cash		18
Saudi Arabia
Cash and Cash Equivalents [Line Items]
Restricted cash	$ 1	$ 1

Acquisitions and Related Dive_3

Acquisitions and Related Divestitures - Narrative (Details) $ / shares in Units, ton in Thousands, € in Millions, $ in Millions

Jan. 19, 2021USD ($)

May 01, 2019USD ($)

Apr. 26, 2019EUR (€)

Apr. 10, 2019USD ($)$ / sharesshares

May 31, 2020USD ($)ton

Jun. 30, 2020USD ($)

Jun. 30, 2020EUR (€)

Jun. 30, 2019USD ($)

Dec. 31, 2021USD ($)shares

Dec. 31, 2020USD ($)shares

Dec. 31, 2019USD ($)

Jun. 30, 2021USD ($)

Jun. 30, 2021EUR (€)

Business Acquisition [Line Items]

Cash consideration

$ 0

$ 0

$ 1,675

Common stock, shares outstanding (in shares) | shares

153,934,677

143,557,479

Proceeds from divestiture of business, net of transaction costs

$ 0

$ 0

701

Supply commitment, initial term

2 years

Contract loss

0

0

19

Pre-tax charges related to step up to fair value of inventories acquired

$ 0

$ 0

98

INEOS | Transition Services Agreement | Affiliated Entity

Business Acquisition [Line Items]

Agreement term

2 years

Maximum

Business Acquisition [Line Items]

Supply commitment, extendable term (up to)

3 years

Discontinued Operations, Disposed of by Sale | Cristal, North America TiO2 Business

Business Acquisition [Line Items]

Proceeds from divestiture of business, net of transaction costs

$ 701

Proceeds from divestiture of business (in euros)

$ 701

Discontinued Operations, Disposed of by Sale | 8120 Paper Laminate Grade

Business Acquisition [Line Items]

Proceeds from divestiture of business (in euros)

$ 3.9

€ 3.5

Disposal Group, Disposed of by Sale, Not Discontinued Operations | 8120 Paper Laminate Grade

Business Acquisition [Line Items]

Proceeds from divestiture of business (in euros) | €

€ 1

Amount of consideration received in cash

$ 4.2

€ 3.5

Contract loss

$ 19

19

Cristal International Holdings B.V.

Business Acquisition [Line Items]

Common stock, shares outstanding (in shares) | shares

37,580,000

Ownership percentage

24.00%

National Industrialization Company (Tasnee) | National Titanium Dioxide Company Ltd.

Business Acquisition [Line Items]

Ownership percentage

79.00%

Venator Materials PLC

Business Acquisition [Line Items]

Divestiture of businesses, cash consideration (in euros) | €

€ 8

Tizir Titanium And Iron

Business Acquisition [Line Items]

Cash consideration

$ 300

Percentage of annual acquisition costs

3.00%

Payments into escrow

$ 18

$ 18

Tizir Titanium And Iron | High-Grade Titanium Slag

Business Acquisition [Line Items]

Number of annual tons capacity to upgrade mineral to product | ton

230

Tizir Titanium And Iron | High-Purity Pig Iron

Business Acquisition [Line Items]

Number of annual tons capacity to upgrade mineral to product | ton

90

Tizir Titanium And Iron | Minimum

Business Acquisition [Line Items]

Termination fee

$ 18

Cristal, TiO2 Business

Business Acquisition [Line Items]

Cash consideration

$ 1,675

Number of shares issued in acquisition | shares

37,580,000

Closing share price (in dollars per share) | $ / shares

$ 14

Total consideration transferred

$ 2,200

Pre-tax charges related to step up to fair value of inventories acquired

$ 98

Acquisitions and Related Dive_4

Acquisitions and Related Divestitures - Pro Forma Information (Details) - Cristal, TiO2 Business $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Business Acquisition [Line Items]
Net Sales	$ 3,008
Net income from continuing operations attributable to Tronox Holdings plc	$ 18

Restructuring Initiatives - Nar

Restructuring Initiatives - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Restructuring and Related Activities [Abstract]
Restructuring expense	$ 3	$ 22

Restructuring Initiatives - Sch

Restructuring Initiatives - Schedule of Liability Balance for Restructuring (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	$ 2	$ 10	$ 0
Charges		3	22
Cash payments	(1)	(11)	(12)
Restructuring reserve, ending balance	$ 1	$ 2	$ 10

Revenue - Narrative (Details)

Revenue - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)segment	Dec. 31, 2020USD ($)
Disaggregation of Revenue [Line Items]
Number of operating segments	1
Number of reportable segments	1
Maximum
Disaggregation of Revenue [Line Items]
Duration of contract	1 year
Contract liability | $	$ 2	$ 4

Revenue - Disaggregation of Rev

Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 3,572	$ 2,758	$ 2,642
TiO2
Disaggregation of Revenue [Line Items]
Net sales	2,793	2,176	2,049
Zircon
Disaggregation of Revenue [Line Items]
Net sales	478	283	290
Feedstock and other products
Disaggregation of Revenue [Line Items]
Net sales	301	299	303
North America
Disaggregation of Revenue [Line Items]
Net sales	743	716	696
North America | Restatement Adjustment
Disaggregation of Revenue [Line Items]
Net sales	(78)
South and Central America
Disaggregation of Revenue [Line Items]
Net sales	252	181	164
South and Central America | Restatement Adjustment
Disaggregation of Revenue [Line Items]
Net sales	(134)
Europe, Middle-East and Africa
Disaggregation of Revenue [Line Items]
Net sales	1,398	1,013	954
Europe, Middle-East and Africa | Restatement Adjustment
Disaggregation of Revenue [Line Items]
Net sales	134
Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales	1,179	$ 848	$ 828
Asia Pacific | Restatement Adjustment
Disaggregation of Revenue [Line Items]
Net sales	$ 78

Discontinued Operations and O_3

Discontinued Operations and Other Disposition - Narrative (Details) $ in Millions	May 01, 2019USD ($)	Dec. 31, 2021discontinuedOperation	Dec. 31, 2020discontinuedOperation
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of discontinued operations | discontinuedOperation		0	0
Discontinued Operations, Disposed of by Sale | Cristal, North America TiO2 Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses | $	$ 701

Discontinued Operations and O_4

Discontinued Operations and Other Disposition - Summary of Operations of Discontinued Operation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations, net of tax	$ 0	$ 0	$ 5
Cristal, North America TiO2 Business | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales			41
Cost of goods sold			29
Gross profit			12
Selling, general and administrative expense and other expenses			5
Income before income taxes			7
Income tax provision			2
Income from discontinued operations, net of tax			$ 5

Other Income, Net (Details)

Other Income, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Income and Expenses [Abstract]
Net realized and unrealized foreign currency gains (losses)	$ 16	$ 4	$ 5
Pension and postretirement benefit interest cost, expected return on assets and amortization of actuarial losses	5	1	(1)
Pension and postretirement benefit settlement gains	0	2	1
Insurance proceeds	0	11	0
Breakage fee (Note 3)	(18)	0	0
AMIC technical service support fee (Note 24)	8	5	0
Other, net	1	3	(2)
Other income, net	$ 12	$ 26	$ 3

Income Taxes, Income (Loss) bef

Income Taxes, Income (Loss) before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract]
United Kingdom	$ (16)	$ (12)	$ 56
International	390	126	(144)
Income (loss) from continuing operations before income taxes	$ 374	$ 114	$ (88)

Income Taxes, Income Tax (Provi

Income Taxes, Income Tax (Provision) Benefit (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
United Kingdom:
Current	$ (1)	$ (1)	$ 0
Deferred	0	(10)	11
International:
Current	(55)	(17)	(23)
Deferred	(15)	909	(2)
Income tax (provision) benefit	$ (71)	$ 881	$ (14)

Income Taxes, Effective Income

Income Taxes, Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory tax rate (as a percent)	19.00%	19.00%	19.00%
Increases (decreases) resulting from:
Tax rate differences	7.00%	10.00%	5.00%
Disallowable expenditures	2.00%	17.00%	(29.00%)
Valuation allowances	(27.00%)	(849.00%)	(44.00%)
Corporate reorganization	17.00%	(96.00%)	0.00%
Tax rate changes	2.00%	(8.00%)	17.00%
State and local taxes	1.00%	5.00%	(7.00%)
Prior year accruals	(2.00%)	131.00%	24.00%
Branch taxation	0.00%	0.00%	(1.00%)
Withholding taxes	2.00%	0.00%	(2.00%)
Tax credits	(2.00%)	(2.00%)	3.00%
Deferred gross margin	0.00%	0.00%	(4.00%)
Other, net	0.00%	0.00%	3.00%
Effective tax rate (as a percent)	19.00%	(773.00%)	(16.00%)

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2014
Income Taxes [Abstract]
Federal statutory income tax rate, percent	19.00%	19.00%	19.00%
Valuation allowance, increase (decrease)	$ (98)	$ (965)	$ 172
Valuation allowance, deferred tax asset, reversal amount		909
Deferred income taxes	15	$ (899)	$ (9)
Operating loss carryforwards, valuation allowance	1,026
Undistributed earnings from foreign subsidiaries subject to withholding tax if distributed	$ 353
Positive Outcome of Litigation | Settled Litigation | Anadarko Litigation
Income Taxes [Abstract]
Settlement amount paid				$ 5,200
Additional deferred tax assets				$ 2,000
United Kingdom
Income Taxes [Abstract]
Federal statutory income tax rate, percent	19.00%	19.00%	19.00%
Valuation allowance, increase (decrease)	$ (1)	$ (1)	$ (2)
Netherlands
Income Taxes [Abstract]
Benefit due to reversal of valuation allowance			48
Australia
Income Taxes [Abstract]
Valuation allowance, increase (decrease)	$ (43)	(17)	89
Saudi Arabia | Foreign Currency Exchange Rates Changes
Income Taxes [Abstract]
Valuation allowance, deferred tax asset, reversal amount		8
Deferred income taxes		2
Brazil | Foreign Currency Exchange Rates Changes
Income Taxes [Abstract]
Valuation allowance, deferred tax asset, reversal amount		8
Domestic Tax Authority | Australia
Income Taxes [Abstract]
Loss in deferred tax assets related to net operating losses		(79)
Cristal, TiO2 Business
Income Taxes [Abstract]
Valuation allowance, deferred tax asset, reversal amount		$ 10
Reduction of acquired U.S. loss carryforward			$ 69

Income Taxes, Net Deferred Tax

Income Taxes, Net Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Net operating loss and other carryforwards	$ 1,720	$ 1,788
Property, plant and equipment, net	107	153
Reserves for environmental remediation and restoration	43	46
Obligations for pension and other employee benefits	58	57
Investments	4	3
Grantor trusts	636	637
Inventories, net	8	8
Interest	214	232
Lease liabilities	23	21
Other accrued liabilities	3	6
Foreign exchange	9	1
Other	7	8
Total deferred tax assets	2,832	2,960
Valuation allowance associated with deferred tax assets	(1,728)	(1,826)
Net deferred tax assets	1,104	1,134
Deferred tax liabilities:
Inventories, net	(5)	(2)
Property, plant and equipment, net	(216)	(226)
Intangible assets, net	(22)	(30)
Lease assets	(24)	(22)
Foreign exchange	(1)	0
Other	(8)	(10)
Total deferred tax liabilities	(276)	(290)
Net deferred tax asset	828	844
Balance sheet classifications:
Deferred tax assets — long-term	985	1,020
Deferred tax liabilities — long-term	(157)	(176)
Net deferred tax asset	$ 828	$ 844

Income Taxes, Changes in Valuat

Income Taxes, Changes in Valuation Allowance by Jurisdiction (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Changes in valuation allowance by jurisdiction [Abstract]
Valuation allowance, increase (decrease)	$ (98)	$ (965)	$ 172
United Kingdom
Changes in valuation allowance by jurisdiction [Abstract]
Valuation allowance, increase (decrease)	(1)	(1)	(2)
United States
Changes in valuation allowance by jurisdiction [Abstract]
Valuation allowance, increase (decrease)	(19)	(944)	54
Australia
Changes in valuation allowance by jurisdiction [Abstract]
Valuation allowance, increase (decrease)	(43)	(17)	89
The Netherlands
Changes in valuation allowance by jurisdiction [Abstract]
Valuation allowance, increase (decrease)	(24)	2	0
Saudi Arabia
Changes in valuation allowance by jurisdiction [Abstract]
Valuation allowance, increase (decrease)	(11)	11	0
Brazil
Changes in valuation allowance by jurisdiction [Abstract]
Valuation allowance, increase (decrease)	0	(14)	14
Switzerland
Changes in valuation allowance by jurisdiction [Abstract]
Valuation allowance, increase (decrease)	0	0	15
Belgium
Changes in valuation allowance by jurisdiction [Abstract]
Valuation allowance, increase (decrease)	$ 0	$ (2)	$ 2

Income Taxes, Expiration of Tax

Income Taxes, Expiration of Tax Loss Carryforwards (Details) $ in Millions	Dec. 31, 2021USD ($)
Summary of expiration of tax loss carryforwards [Abstract]
2022	$ (103)
2023	(108)
2024	(12)
2025	(41)
2026	(76)
2027 - 2040	(8,016)
Unlimited	(1,095)
Total Tax Loss Carryforwards	(9,451)
Domestic Tax Authority | United Kingdom
Summary of expiration of tax loss carryforwards [Abstract]
2022	0
2023	0
2024	0
2025	0
2026	0
2027 - 2040	0
Unlimited	(51)
Total Tax Loss Carryforwards	(51)
Foreign Tax Authority | Australia
Summary of expiration of tax loss carryforwards [Abstract]
2022	0
2023	0
2024	0
2025	0
2026	0
2027 - 2040	0
Unlimited	(355)
Total Tax Loss Carryforwards	(355)
Foreign Tax Authority | The Netherlands
Summary of expiration of tax loss carryforwards [Abstract]
2022	0
2023	0
2024	0
2025	0
2026	0
2027 - 2040	0
Unlimited	(100)
Total Tax Loss Carryforwards	(100)
Foreign Tax Authority | France
Summary of expiration of tax loss carryforwards [Abstract]
2022	0
2023	0
2024	0
2025	0
2026	0
2027 - 2040	0
Unlimited	(214)
Total Tax Loss Carryforwards	(214)
Foreign Tax Authority | Saudi Arabia
Summary of expiration of tax loss carryforwards [Abstract]
2022	0
2023	0
2024	0
2025	0
2026	0
2027 - 2040	0
Unlimited	(23)
Total Tax Loss Carryforwards	(23)
Foreign Tax Authority | Switzerland
Summary of expiration of tax loss carryforwards [Abstract]
2022	(100)
2023	(80)
2024	0
2025	0
2026	0
2027 - 2040	(1)
Unlimited	0
Total Tax Loss Carryforwards	(181)
Foreign Tax Authority | U.S.
Summary of expiration of tax loss carryforwards [Abstract]
2022	0
2023	0
2024	0
2025	0
2026	0
2027 - 2040	(3,988)
Unlimited	(334)
Total Tax Loss Carryforwards	(4,322)
State and Local Jurisdiction | U.S.
Summary of expiration of tax loss carryforwards [Abstract]
2022	(3)
2023	(28)
2024	(12)
2025	(41)
2026	(76)
2027 - 2040	(4,027)
Unlimited	(18)
Total Tax Loss Carryforwards	$ (4,205)

Income (Loss) Per Share - Compu

Income (Loss) Per Share - Computation of Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator – Basic and Diluted:
Net income (loss) from continuing operations	$ 303	$ 995	$ (102)
Less: Net income from continuing operations attributable to noncontrolling interest	17	26	12
Undistributed net income (loss) from continuing operations attributable to Tronox Holdings plc	286	969	(114)
Net income from discontinued operations available to ordinary shares	0	0	5
Net income (loss) available to ordinary shares	$ 286	$ 969	$ (109)
Denominator – Basic and Diluted:
Weighted-average ordinary shares, basic (thousands) (in shares)	152,056	143,355	139,859
Weighted average ordinary shares, diluted (in thousands) (in shares)	157,945	144,906	139,859
Net income (loss) per Ordinary Share:
Basic net income (loss) from continuing operations per ordinary share (in dollars per share)	$ 1.88	$ 6.76	$ (0.81)
Basic net (loss) income from discontinued operations per ordinary share (in dollars per share)	0	0	0.03
Basic net income (loss) per ordinary share	1.88	6.76	(0.78)
Diluted net income (loss) from continuing operations per ordinary share (in dollars per share)	1.81	6.69	(0.81)
Diluted net income (loss) from discontinued operations per ordinary share (in dollars per share)	0	0	0.03
Diluted net income (loss) per ordinary share (in dollars per share)	$ 1.81	$ 6.69	$ (0.78)

Income (Loss) Per Share - Com_2

Income (Loss) Per Share - Computation of Anti-Dilutive Shares (Details) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Employee Stock Option
Earnings Per Share, Diluted, Other Disclosures [Abstract]
Shares (in shares)	414,296	1,201,891	1,260,902
Restricted Stock Units (RSUs)
Earnings Per Share, Diluted, Other Disclosures [Abstract]
Shares (in shares)	0	1,054,994	5,557,659

Inventories, net (Details)

Inventories, net (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Inventory, Net [Abstract]
Raw materials	$ 265	$ 170
Work-in-process	117	103
Finished goods, net	461	668
Materials and supplies, net	205	196
Inventories, net	1,048	1,137
Inventory obsolescence reserves	43	41
Reserves for lower of cost and net realizable value	11	29
Feedstock
Inventory, Net [Abstract]
Raw materials	$ 99
Finished goods, net		$ 110

Property, Plant and Equipment_2

Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	$ 3,123	$ 3,032
Less: accumulated depreciation	(1,413)	(1,273)
Property, plant and equipment, net	1,710	1,759
Depreciation expense related to property plant and equipment [Abstract]
Depreciation expense	227	238	$ 194
Cost of goods sold
Depreciation expense related to property plant and equipment [Abstract]
Depreciation expense	222	233	189
Selling, general and administrative expenses
Depreciation expense related to property plant and equipment [Abstract]
Depreciation expense	5	5	$ 5
Land and land improvements
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	188	189
Buildings
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	365	368
Machinery and equipment
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	2,234	2,197
Construction-in-progress
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	263	192
Other
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	$ 73	$ 86

Mineral Leaseholds, net (Detail

Mineral Leaseholds, net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Minerals leaseholds, net of accumulated depletion [Abstract]
Mineral leaseholds	$ 1,306	$ 1,333
Less accumulated depletion	(559)	(530)
Mineral leaseholds, net	747	803
Depletion expense related to mineral leaseholds	$ 37	$ 33	$ 56

Intangible Assets, net (Details

Intangible Assets, net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Intangible assets, net of accumulated amortization [Abstract]
Gross Cost	$ 504	$ 457
Accumulated Amortization	(287)	(256)
Net Carrying Amount	217	201
Capitalized costs	272	195	$ 198
Amortization expense related to intangible assets [Abstract]
Amortization expense	33	33	30
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2022	34
2023	34
2024	33
2025	33
2026	15
Thereafter	68
Cost of goods sold
Amortization expense related to intangible assets [Abstract]
Amortization expense	2	2	2
Selling, general and administrative expenses
Amortization expense related to intangible assets [Abstract]
Amortization expense	31	31	$ 28
Customer relationships
Intangible assets, net of accumulated amortization [Abstract]
Gross Cost	291	291
Accumulated Amortization	(211)	(193)
Net Carrying Amount	80	98
TiO2 technology
Intangible assets, net of accumulated amortization [Abstract]
Gross Cost	93	93
Accumulated Amortization	(31)	(24)
Net Carrying Amount	62	69
Internal-use software and other
Intangible assets, net of accumulated amortization [Abstract]
Gross Cost	120	73
Accumulated Amortization	(45)	(39)
Net Carrying Amount	75	34
Capitalized costs	$ 68	$ 19

Balance Sheet and Cash Flows _3

Balance Sheet and Cash Flows Supplemental Information - Accrued Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accrued Liabilities, Current [Abstract]
Employee-related costs and benefits	$ 155	$ 133
Related party payables	1	7
Interest	20	21
Sales rebates	36	43
Restructuring	1	2	$ 10	$ 0
Taxes other than income taxes	18	16
Asset retirement obligations	10	9
Interest rate swaps	25	57
Other accrued liabilities	62	62
Accrued liabilities	$ 328	$ 350

Balance Sheet and Cash Flows _4

Balance Sheet and Cash Flows Supplemental Information - Additional Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Supplemental non cash information:
Operating activities - MGT sales made to AMIC	$ 4	$ 0	$ 0
Financing activities - Acquisition of noncontrolling interest	125	0	0
Capital expenditures acquired but not yet paid	75	37	23
MGT Loan
Supplemental non cash information:
Operating activities - Interest expense on MGT loan	1	0	0
Financing activities - Repayment of MGT loan	3	0	0
MGT Acquisition
Supplemental non cash information:
Investing activities - Acquisition of MGT assets	0	36	0
Financing activities - debt assumed in the acquisition of MGT assets	$ 0	$ 36	$ 0

Debt - Long-Term Debt, Net of U

Debt - Long-Term Debt, Net of Unamortized Discount and Debt Issuance Costs (Details) R in Billions	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2021AUD ($)	Oct. 01, 2021USD ($)	Oct. 01, 2021ZAR (R)	Mar. 15, 2021USD ($)	Mar. 11, 2021USD ($)	May 01, 2020USD ($)	Apr. 10, 2019AUD ($)	Apr. 06, 2018USD ($)	Sep. 22, 2017USD ($)
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Long-term debt, gross	$ 2,617,000,000
Finance leases	14,000,000	$ 15,000,000
Total borrowings	2,612,000,000	3,356,000,000
Long-term debt due within one year	(18,000,000)	(58,000,000)
Debt issuance costs	(36,000,000)	(35,000,000)
Long-term debt, net	2,558,000,000	3,263,000,000
Prior Term Loan Facility
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Original Principal	2,150,000,000
Long-term debt, gross	0	$ 1,607,000,000
Average effective interest rate		4.60%
New Term Loan Facility
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Original Principal	1,300,000,000
Long-term debt, gross	$ 897,000,000	$ 0					$ 1,300,000,000
Average effective interest rate	5.10%
Senior Notes due 2025
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Original Principal	$ 450,000,000										$ 450,000,000
Annual Interest Rate	5.75%		5.75%								5.75%
Long-term debt, gross	$ 0	450,000,000
Senior Notes due 2026
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Original Principal	$ 615,000,000									$ 615,000,000
Annual Interest Rate	6.50%		6.50%							6.50%
Long-term debt, gross	$ 0	615,000,000
Senior Notes due 2029
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Original Principal	$ 1,075,000,000					$ 1,075,000,000
Annual Interest Rate	4.63%		4.63%			4.625%
Long-term debt, gross	$ 1,075,000,000	0
New Standard Bank Term Loan Facility
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Long-term debt, gross				$ 98,000,000	R 1.5
Senior Notes | 6.5% Senior Secured Notes due 2025
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Original Principal	$ 500,000,000							$ 500,000,000
Annual Interest Rate	6.50%		6.50%					6.50%
Long-term debt, gross	$ 500,000,000	500,000,000
Notes Payable to Banks | Prior Standard Bank Term Loan Facility
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Original Principal	222,000,000
Long-term debt, gross	0	$ 115,000,000
Average effective interest rate		7.80%
Notes Payable to Banks | New Standard Bank Term Loan Facility
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Original Principal	98,000,000
Long-term debt, gross	$ 92,000,000	$ 0
Average effective interest rate	7.30%
Loans Payable | Tikon Loan
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Long-term debt, gross	$ 0	17,000,000
Loans Payable | Australian Government Loan
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Original Principal	5,000,000								$ 6,000,000
Long-term debt, gross	1,000,000	1,000,000	$ 2,000,000
Loans Payable | MGT Loan
Long-term debt, net of an unamortized discount and debt issuance costs [Abstract]
Original Principal	36,000,000
Long-term debt, gross	$ 33,000,000	$ 36,000,000
Average effective interest rate	3.10%

Debt - Scheduled Maturities of

Debt - Scheduled Maturities of Long-term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Scheduled maturities of long-term debt [Abstract]
2022	$ 18	$ 58
2023	18
2024	18
2025	518
2026	58
Thereafter	1,987
Total	2,617
Remaining accretion associated with the New Term Loan Facility and Australian Government Loan	(5)	(9)
Total borrowings	$ 2,612	$ 3,356

Debt - Facilities (Details)

Debt - Facilities (Details) ¥ in Millions

Oct. 01, 2021USD ($)

Oct. 01, 2021ZAR (R)

Sep. 30, 2021

Jun. 30, 2021

Mar. 11, 2021USD ($)

May 01, 2020USD ($)

Dec. 31, 2019USD ($)

Oct. 16, 2019USD ($)

May 01, 2019USD ($)

Apr. 10, 2019AUD ($)

Mar. 31, 2019USD ($)

Mar. 25, 2019ZAR (R)

Sep. 22, 2017USD ($)

Mar. 31, 2021USD ($)

Jan. 31, 2021USD ($)

Dec. 31, 2019USD ($)

Oct. 31, 2019SAR (ر.س)

Dec. 31, 2021USD ($)

Dec. 31, 2021ZAR (R)

Dec. 31, 2021CNY (¥)

Dec. 31, 2020USD ($)

Dec. 31, 2019USD ($)

Dec. 31, 2021ZAR (R)

Dec. 31, 2021AUD ($)

Oct. 01, 2021ZAR (R)

Dec. 17, 2020USD ($)

Mar. 31, 2020USD ($)

Mar. 31, 2020SAR (ر.س)

Oct. 16, 2019SAR (ر.س)

Mar. 22, 2019USD ($)

Line of Credit Facility [Abstract]

Debt discount

$ 5,000,000

$ 9,000,000

Loss on extinguishment of debt

65,000,000

2,000,000

$ 3,000,000

Debt outstanding

2,617,000,000

New Term Loan Facility

Line of Credit Facility [Abstract]

Face amount of debt

1,300,000,000

Debt prepayment

$ 100,000,000

$ 95,000,000

$ 100,000,000

200,000,000

Loss on extinguishment of debt

2,000,000

1,000,000

Debt outstanding

$ 1,300,000,000

897,000,000

0

Maturity period of loan

7 years

New Term Loan Facility | Secured Debt

Line of Credit Facility [Abstract]

Face amount of debt

$ 1,500,000,000

Blocked Term Loan | Secured Debt

Line of Credit Facility [Abstract]

Face amount of debt

$ 650,000,000

Term Loan Facility | Secured Debt

Line of Credit Facility [Abstract]

Debt discount

11,000,000

Prior Term Loan Facility

Line of Credit Facility [Abstract]

Face amount of debt

2,150,000,000

Debt outstanding

0

1,607,000,000

Repayments of debt

$ 313,000,000

Standard Bank Term Loan Facility, Amortization Loan | Notes Payable to Banks

Line of Credit Facility [Abstract]

Face amount of debt

R 2,600,000,000

163,000,000

Debt prepayment

$ 69,000,000

R 1,040,000,000

Debt outstanding

26,000,000

R 390,000,000

Maturity period of loan

5 years

Periodic principal payment (as a percent)

500.00%

Standard Bank Term Loan Facility, Bullet Loan | Notes Payable to Banks

Line of Credit Facility [Abstract]

Face amount of debt | R

R 600,000,000

New Standard Bank Term Loan Facility

Line of Credit Facility [Abstract]

Debt outstanding

$ 98,000,000

R 1,500,000,000

Maturity period of loan

5 years

5 years

Debt instrument, periodic payment, principal

$ 2,000,000

R 37,500,000

New Standard Bank Term Loan Facility | Notes Payable to Banks

Line of Credit Facility [Abstract]

Face amount of debt

98,000,000

Debt outstanding

92,000,000

0

Tikon Loan | Loans Payable

Line of Credit Facility [Abstract]

Debt outstanding

0

17,000,000

Basis spread on variable rate (as a percent)

7.00%

Repayments of debt

17,000,000

¥ 111

Australian Government Loan | Loans Payable

Line of Credit Facility [Abstract]

Face amount of debt

$ 6,000,000

5,000,000

Debt outstanding

1,000,000

1,000,000

$ 2,000,000

Renewal term

5 years

MGT Loan

Line of Credit Facility [Abstract]

Note payable

33,000,000

$ 36,000,000

Notes payable due within 12 months

7,000,000

MGT Loan | Loans Payable

Line of Credit Facility [Abstract]

Face amount of debt

36,000,000

Debt outstanding

33,000,000

$ 36,000,000

Senior Notes Due 2026 and Senior Notes Due 2025

Line of Credit Facility [Abstract]

Loss on extinguishment of debt

52,000,000

Base Rate | Minimum | New Term Loan Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

1.25%

Base Rate | Maximum | New Term Loan Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

1.50%

Adjusted LIBOR | New Term Loan Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.25%

Adjusted LIBOR | Minimum | New Term Loan Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.25%

Adjusted LIBOR | Maximum | New Term Loan Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.50%

Johannesburg Interbank Average Rate, One | Standard Bank Term Loan Facility, Amortization Loan | Notes Payable to Banks

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.60%

Net leverage ratio benchmark

1.5

Johannesburg Interbank Average Rate, Two | Standard Bank Term Loan Facility, Amortization Loan | Notes Payable to Banks

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.85%

Net leverage ratio benchmark

1.5

Johannesburg Interbank Average Rate (JIBAR) | New Standard Bank Term Loan Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.35%

2.35%

Revolving Credit Facility | New Term Loan Facility

Line of Credit Facility [Abstract]

Debt prepayment

398,000,000

Loss on extinguishment of debt

9,000,000

Revolving Credit Facility | New Revolving Facility

Line of Credit Facility [Abstract]

Face amount of debt

$ 350,000,000

Loss on extinguishment of debt

4,000,000

Maturity period of loan

5 years

Exceeding percentage of loan amount, as a percent

35.00%

Net leverage ratio benchmark

4.75

Revolving Credit Facility | New Revolving Facility | Letter of Credit

Line of Credit Facility [Abstract]

Maximum borrowing capacity

$ 125,000,000

Revolving Credit Facility | New Standard Bank Revolving Credit Facility

Line of Credit Facility [Abstract]

Face amount of debt

$ 63,000,000

R 1,000,000,000

Maturity period of loan

3 years

3 years

Revolving Credit Facility | Base Rate | New Revolving Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

1.00%

Revolving Credit Facility | Base Rate | Minimum | New Revolving Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

0.75%

Revolving Credit Facility | Base Rate | Maximum | New Revolving Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

1.25%

Revolving Credit Facility | Adjusted LIBOR | New Revolving Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.00%

Revolving Credit Facility | Adjusted LIBOR | Minimum | New Revolving Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

1.75%

Revolving Credit Facility | Adjusted LIBOR | Maximum | New Revolving Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.25%

Revolving Credit Facility | Johannesburg Interbank Average Rate (JIBAR) | New Standard Bank Revolving Credit Facility | Utilization Less Than Thirty-Three Percent

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.10%

2.10%

Revolving Credit Facility | Johannesburg Interbank Average Rate (JIBAR) | New Standard Bank Revolving Credit Facility | Utilization Between Thirty-Three Percent And Sixty-Six Percent

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.25%

2.25%

Revolving Credit Facility | Johannesburg Interbank Average Rate (JIBAR) | New Standard Bank Revolving Credit Facility | Utilization Greater Than Sixty-Six Percent

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.40%

2.40%

Revolving Credit Facility | Credit Facility | Wells Faro Revolver, Standard Bank Credit Facility And Emirates Credit Facility

Line of Credit Facility [Abstract]

Repayments of lines of credit

$ 200,000,000

Revolving Credit Facility | Credit Facility | Emirates NBD PJSC

Line of Credit Facility [Abstract]

Maximum borrowing capacity

$ 60,000,000

Debt outstanding, short-term

0

Revolving Credit Facility | Domestic Line of Credit | Emirates NBD PJSC

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.25%

Revolving Credit Facility | Foreign Line of Credit | Emirates NBD PJSC

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.25%

Wells Fargo Revolver | Base Rate | Minimum

Line of Credit Facility [Abstract]

Applicable margin added to variable interest rate (as a percent)

0.25%

Wells Fargo Revolver | Base Rate | Maximum

Line of Credit Facility [Abstract]

Applicable margin added to variable interest rate (as a percent)

0.75%

Wells Fargo Revolver | Adjusted LIBOR

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

1.00%

Term of variable rate

1 month

Wells Fargo Revolver | Adjusted LIBOR | Minimum

Line of Credit Facility [Abstract]

Applicable margin added to variable interest rate (as a percent)

1.25%

Wells Fargo Revolver | Adjusted LIBOR | Maximum

Line of Credit Facility [Abstract]

Applicable margin added to variable interest rate (as a percent)

1.75%

Wells Fargo Revolver | Federal Funds Effective Swap Rate

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

0.50%

Wells Fargo Revolver | Revolving Credit Facility

Line of Credit Facility [Abstract]

Loss on extinguishment of debt

2,000,000

Maximum borrowing capacity

$ 550,000,000

$ 350,000,000

Outstanding borrowings

0

Debt issuance costs

2,000,000

Wells Fargo Revolver | Letter of Credit

Line of Credit Facility [Abstract]

Maximum borrowing capacity

$ 85,000,000

Outstanding borrowings

21,000,000

Maturity date

Sep. 22, 2022

ABSA Revolver

Line of Credit Facility [Abstract]

Loss on extinguishment of debt

$ 1,000,000

Credit Facility | Standard Bank Credit Facility | Notes Payable to Banks

Line of Credit Facility [Abstract]

Maximum borrowing capacity

R 1,000,000,000

$ 63,000,000

Credit Facility | Johannesburg Interbank Average Rate, One | Standard Bank Credit Facility | Notes Payable to Banks

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.60%

Net leverage ratio benchmark

1.5

Credit Facility | Johannesburg Interbank Average Rate, Two | Standard Bank Credit Facility | Notes Payable to Banks

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

2.85%

Net leverage ratio benchmark

1.5

Credit Facility | Notes Payable to Banks | Saudi British Bank (SABB) Credit Facility

Line of Credit Facility [Abstract]

Maximum borrowing capacity

$ 19,000,000

$ 13,000,000

ر.س 50,000,000

ر.س 70,000,000

Proceeds from credit facility

$ 13,000,000

ر.س 50,000,000

Credit Facility | Notes Payable to Banks | Saudi Inter Bank Offered Rate | Saudi British Bank (SABB) Credit Facility

Line of Credit Facility [Abstract]

Basis spread on variable rate (as a percent)

1.80%

Debt - Senior Notes (Details)

Debt - Senior Notes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Mar. 15, 2021	Apr. 06, 2018	Sep. 22, 2017
Line of Credit Facility [Abstract]
Loss on extinguishment of debt	$ 65,000,000	$ 2,000,000	$ 3,000,000
Senior Notes due 2025
Line of Credit Facility [Abstract]
Interest rate	5.75%					5.75%
Original Principal	$ 450,000,000					$ 450,000,000
Repayments of debt	450,000,000
Amortization of Debt Discount (Premium)	$ 19,000,000
Senior Notes due 2026
Line of Credit Facility [Abstract]
Interest rate	6.50%				6.50%
Original Principal	$ 615,000,000				$ 615,000,000
Repayments of debt	615,000,000
Amortization of Debt Discount (Premium)	$ 21,000,000
Senior Notes due 2029
Line of Credit Facility [Abstract]
Interest rate	4.63%			4.625%
Original Principal	$ 1,075,000,000			$ 1,075,000,000
Senior Notes Due 2026 and Senior Notes Due 2025
Line of Credit Facility [Abstract]
Loss on extinguishment of debt	$ 52,000,000

Debt - Interest and Debt Expens

Debt - Interest and Debt Expense, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Summary of interest and debt expense, net [Abstract]
Interest on debt	$ 148	$ 174	$ 186
Amortization of deferred debt issuance costs and discounts on debt	11	10	8
Capitalized interest	(7)	(2)	(1)
Interest on capital leases and letters of credit and commitments	5	7	8
Total interest and debt expense, net	157	189	$ 201
Deferred debt issuance costs	36	35
Debt discount	5	9
Wells Fargo Revolver
Summary of interest and debt expense, net [Abstract]
Deferred debt issuance costs	$ 2	$ 2

Derivative Financial Instrume_3

Derivative Financial Instruments - Fair Value of Derivatives Outstanding (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total derivatives, assets at fair value	$ 4	$ 65
Total derivatives, accrued liabilities at fair value	26	57
Prepaid and other assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total derivatives, assets at fair value	4	65
Derivatives Designated as Cash Flow Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total derivatives, assets at fair value	4	58
Total derivatives, accrued liabilities at fair value	26	57
Currency Contracts | Derivatives Designated as Cash Flow Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total derivatives, assets at fair value	3	58
Total derivatives, accrued liabilities at fair value	1	0
Currency Contracts | Derivatives Not Designated as Cash Flow Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total derivatives, assets at fair value	0	7
Total derivatives, accrued liabilities at fair value	0	0
Interest Rate Swaps | Derivatives Designated as Cash Flow Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total derivatives, assets at fair value	0	0
Total derivatives, accrued liabilities at fair value	25	57
Natural Gas Hedges | Derivatives Designated as Cash Flow Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total derivatives, assets at fair value	1	0
Total derivatives, accrued liabilities at fair value	$ 0	$ 0

Derivative Financial Instrume_4

Derivative Financial Instruments - Impact on Statement of Operation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue
Derivatives Designated as Hedging Instruments
Total Derivatives	$ (3)	$ (7)	$ 5
Cost of goods sold
Derivatives Designated as Hedging Instruments
Total Derivatives	38	2	3
Other Income, net
Derivatives Designated as Hedging Instruments
Total Derivatives	1	4	7
Currency Contracts | Revenue
Derivatives Not Designated as Hedging Instruments
Amount of Pre-Tax Gain (Loss) Recognized in Earnings	0	0	0
Derivatives Designated as Hedging Instruments
Amount of Pre-Tax Gain (Loss) Recognized in Earnings	(3)	(7)	5
Currency Contracts | Cost of goods sold
Derivatives Not Designated as Hedging Instruments
Amount of Pre-Tax Gain (Loss) Recognized in Earnings	0	0	0
Derivatives Designated as Hedging Instruments
Amount of Pre-Tax Gain (Loss) Recognized in Earnings	35	3	3
Currency Contracts | Other Income, net
Derivatives Not Designated as Hedging Instruments
Amount of Pre-Tax Gain (Loss) Recognized in Earnings	1	4	7
Derivatives Designated as Hedging Instruments
Amount of Pre-Tax Gain (Loss) Recognized in Earnings	0	0	0
Natural Gas | Revenue
Derivatives Designated as Hedging Instruments
Amount of Pre-Tax Gain (Loss) Recognized in Earnings	0	0	0
Natural Gas | Cost of goods sold
Derivatives Designated as Hedging Instruments
Amount of Pre-Tax Gain (Loss) Recognized in Earnings	3	(1)	0
Natural Gas | Other Income, net
Derivatives Designated as Hedging Instruments
Amount of Pre-Tax Gain (Loss) Recognized in Earnings	$ 0	$ 0	$ 0

Derivative Financial Instrume_5

Derivative Financial Instruments - Narrative (Details) R in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2021AUD ($)	Dec. 31, 2021ZAR (R)	Jun. 30, 2019USD ($)
Derivative [Line Items]
Interest expense (less than)	$ 157,000,000	$ 189,000,000	$ 201,000,000
Accumulated other comprehensive loss	(738,000,000)	(610,000,000)
Accumulated other comprehensive gain (loss)
Derivative [Line Items]
Accumulated other comprehensive loss	15,000,000	58,000,000
Interest Rate Swaps
Derivative [Line Items]
Notional amount						$ 750,000,000
Interest Rate Swaps | Accumulated other comprehensive gain (loss)
Derivative [Line Items]
Interest expense (less than)	16,000,000	10,000,000	$ 1,000,000
Accumulated other comprehensive loss	(25,000,000)	$ (57,000,000)
Australian Dollar Exchange Contract
Derivative [Line Items]
Notional amount	322,000,000			$ 443
South African Rand Exchange Contract
Derivative [Line Items]
Notional amount	298,000,000				R 4,700
Foreign Exchange Contract, South African Rand | Derivatives Not Designated as Cash Flow Hedges
Derivative [Line Items]
Notional amount	32,000,000				R 510
Foreign Exchange Contract, Australian Dollars | Derivatives Not Designated as Cash Flow Hedges
Derivative [Line Items]
Notional amount	$ 125,000,000			$ 172

Fair Value Measurement (Details

Fair Value Measurement (Details) - USD ($) $ in Millions	Dec. 31, 2021	Mar. 15, 2021	Dec. 31, 2020	May 01, 2020	Apr. 06, 2018	Sep. 22, 2017
Interest Rate Swaps | Significant Other Observable Inputs (Level 2)
Fair Value [Abstract]
Fair value of derivative contracts	$ 25		$ 57
Foreign currency contracts, net | Significant Other Observable Inputs (Level 2)
Fair Value [Abstract]
Fair value of derivative contracts	2		65
Prior Term Loan Facility | Fair Value, Inputs, Level 1
Fair Value [Abstract]
Fair value of debt	0		1,610
New Term Loan Facility | Fair Value, Inputs, Level 1
Fair Value [Abstract]
Fair value of debt	895		0
Prior Standard Bank Term Loan Facility | Significant Other Observable Inputs (Level 2)
Fair Value [Abstract]
Fair value of debt	0		115
New Standard Bank Term Loan Facility | Significant Other Observable Inputs (Level 2)
Fair Value [Abstract]
Fair value of debt	$ 92		0
Senior Notes due 2025
Fair Value [Abstract]
Annual Interest Rate	5.75%					5.75%
Senior Notes due 2025 | Fair Value, Inputs, Level 1
Fair Value [Abstract]
Fair value of debt	$ 0		468
Senior Notes due 2026
Fair Value [Abstract]
Annual Interest Rate	6.50%				6.50%
Senior Notes due 2026 | Fair Value, Inputs, Level 1
Fair Value [Abstract]
Fair value of debt	$ 0		641
Senior Notes due 2029
Fair Value [Abstract]
Annual Interest Rate	4.63%	4.625%
Senior Notes due 2029 | Fair Value, Inputs, Level 1
Fair Value [Abstract]
Fair value of debt	$ 1,071		0
6.5% Senior Secured Notes due 2025 | Senior Notes
Fair Value [Abstract]
Annual Interest Rate	6.50%			6.50%
6.5% Senior Secured Notes due 2025 | Fair Value, Inputs, Level 1
Fair Value [Abstract]
Fair value of debt	$ 526		536
Tikon Loan | Significant Other Observable Inputs (Level 2)
Fair Value [Abstract]
Fair value of debt	0		17
Australian Government Loan | Significant Other Observable Inputs (Level 2)
Fair Value [Abstract]
Fair value of debt	1		1
MGT Loan | Significant Other Observable Inputs (Level 2)
Fair Value [Abstract]
Fair value of debt	$ 33		$ 36

Leases - Lease Expenses (Detail

Leases - Lease Expenses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating lease expense	$ 47	$ 48	$ 41
Amortization of right-of-use assets	1	1	1
Interest on lease liabilities	2	2	2
Short term lease expense	30	26	22
Variable lease expense	23	22	20
Total lease expense	103	99	86
Cost of goods sold
Lessee, Lease, Description [Line Items]
Total lease expense	98	91	80
Selling, general and administrative expenses
Lessee, Lease, Description [Line Items]
Total lease expense	$ 5	$ 8	$ 6

Leases - Weighted-Average Remai

Leases - Weighted-Average Remaining Lease Terms and Discount Rates for Operating and Finance Leases (Details)	Dec. 31, 2021	Dec. 31, 2020
Weighted-average remaining lease term:
Operating leases	8 years 8 months 12 days	3 years 3 months 18 days
Finance leases	8 years 9 months 18 days	9 years 7 months 6 days
Weighted-average discount rate:
Operating leases	7.40%	7.70%
Finance leases	14.10%	14.20%

Leases - Maturities of Lease Li

Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Operating Leases
2022	$ 30
2023	15
2024	12
2025	8
2026	6
Thereafter	44
Total lease payments	115
Less: imputed interest	(34)
Present value of lease payments	81
Finance Leases
2022	3
2023	3
2024	3
2025	3
2026	3
Thereafter	11
Total lease payments	26
Less: imputed interest	(12)
Present value of lease payments	$ 14	$ 15

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Millions	Dec. 31, 2021USD ($)
Leases [Abstract]
Operating lease, lease not yet commenced, Right-of-use Asset	$ 63
Finance lease, lease not yet commenced, Right-of-use Asset	$ 40
Operating lease, lease not yet commenced, term of contract	10 years
Finance lease, lease not yet commenced, term of contract	15 years

Leases - Cash Paid for Amounts

Leases - Cash Paid for Amounts Included in the Measurements of Lease Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used for operating leases	$ 51	$ 55	$ 41
Operating cash flows used for finance leases	2	2	2
Financing cash flows used for finance leases	$ 1	$ 1	$ 1

Leases - Additional Information

Leases - Additional Information Relating to ROU Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating leases obtained in the normal course of business	$ 49	$ 29
Finance leases obtained in the normal course of business	$ 2	$ 0

Asset Retirement Obligations (D

Asset Retirement Obligations (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Activity related to asset retirement obligations [Roll Forward]
Balance, January 1	$ 166	$ 158
Additions	5	1
Accretion expense	12	12
Remeasurement/translation	(9)	7
Changes in estimates, including cost and timing of cash flows	(15)	(1)
Settlements/payments	(10)	(15)
Other acquisition and divestiture related	0	4
Balance, December 31	149	166
Asset retirement obligations [Abstract]
Current portion included in “Accrued liabilities”	10	9
Noncurrent portion included in “Asset retirement obligations”	139	157
Asset retirement obligations	149	166
Assumptions used in determining asset retirement obligations [Abstract]
Environmental rehabilitation trust assets	$ 12	$ 12
Minimum | Measurement Input, Discount Rate
Assumptions used in determining asset retirement obligations [Abstract]
Measurement input in determining asset retirement obligation	0.015
Minimum | Measurement Input, Risk Free Interest Rate
Assumptions used in determining asset retirement obligations [Abstract]
Measurement input in determining asset retirement obligation	0.039
Maximum | Measurement Input, Discount Rate
Assumptions used in determining asset retirement obligations [Abstract]
Measurement input in determining asset retirement obligation	0.044
Maximum | Measurement Input, Risk Free Interest Rate
Assumptions used in determining asset retirement obligations [Abstract]
Measurement input in determining asset retirement obligation	0.169
Mines | Minimum
Assumptions used in determining asset retirement obligations [Abstract]
Estimated useful life	3 years
Mines | Maximum
Assumptions used in determining asset retirement obligations [Abstract]
Estimated useful life	25 years
Other Assets | Minimum
Assumptions used in determining asset retirement obligations [Abstract]
Estimated useful life	1 year
Other Assets | Maximum
Assumptions used in determining asset retirement obligations [Abstract]
Estimated useful life	32 years

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions	May 01, 2019	Jun. 30, 2019	May 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Unrecorded Unconditional Purchase Obligation, Fiscal Year Maturity [Abstract]
Purchase commitments for 2022				$ 231
Purchase commitments for 2023				87
Purchase commitments for 2024				122
Purchase commitments for 2025				52
Purchase commitments for 2026				105
Purchase commitments due thereafter				58
Commitments and Contingencies [Abstract]
Loss contingency				53
Loss contingency provision				59
Proceeds from divestiture of business, net of transaction costs				0	$ 0	$ 701
Discontinued Operations, Disposed of by Sale | Cristal, North America TiO2 Business
Commitments and Contingencies [Abstract]
Proceeds from divestiture of business, net of transaction costs	$ 701
Venator Materials PLC VS. Tronox Limited
Commitments and Contingencies [Abstract]
Damages sought		$ 400
Venator Materials PLC VS. Tronox Limited | Venator Materials PLC
Commitments and Contingencies [Abstract]
Damages sought			$ 75
Wells Fargo Revolver | Letters of Credit
Commitments and Contingencies [Abstract]
Loss contingency				21
ABSA Revolver | Bank Guarantees
Commitments and Contingencies [Abstract]
Loss contingency				$ 32

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) Attributable to Tronox Holdings plc and Other Equity Items - Changes in Accumulated Other Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	$ 1,871	$ 916	$ 862
Acquisition of noncontrolling interest	0	(3)	(148)
Ending Balance	2,042	1,871	916
AOCI Attributable to Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(610)	(606)	(540)
Other comprehensive income (loss)	(66)	(12)	0
Acquisition of noncontrolling interest	(34)		(61)
Amounts reclassified from accumulated other comprehensive income (loss)	(28)	8	(5)
Ending Balance	(738)	(610)	(606)
Cumulative Translation Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(491)	(503)	(445)
Other comprehensive income (loss)	(103)	12	3
Acquisition of noncontrolling interest	(34)		(61)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0
Ending Balance	(628)	(491)	(503)
Pension Liability Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(120)	(104)	(95)
Other comprehensive income (loss)	16	(20)	(11)
Acquisition of noncontrolling interest	0		0
Amounts reclassified from accumulated other comprehensive income (loss)	4	4	2
Ending Balance	(100)	(120)	(104)
Unrealized Gains (losses) on Derivatives
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	1	1	0
Other comprehensive income (loss)	21	(4)	8
Acquisition of noncontrolling interest	0		0
Amounts reclassified from accumulated other comprehensive income (loss)	(32)	4	(7)
Ending Balance	$ (10)	$ 1	$ 1

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) Attributable to Tronox Holdings plc and Other Equity Items - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Nov. 09, 2021	Jun. 03, 2019
Related Party Transaction [Line Items]
Shares repurchased (in shares)	7,453,391
Stock repurchase program, authorized amount		$ 300,000,000	$ 100,000,000
Stock repurchased, average price (in dollar per share)	$ 11.59
Shares repurchased, aggregate purchase price	$ 87,000,000
Exxaro Mineral Sands Transaction Completion Agreement | Affiliated Entity
Related Party Transaction [Line Items]
Shares repurchased (in shares)	14,000,000

Share-based Compensation - Shar

Share-based Compensation - Share-based Compensation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Total share-based compensation expense (continuing operations)	$ 31	$ 30	$ 32

Share-based Compensation - Narr

Share-based Compensation - Narrative (Details)	Jun. 24, 2020shares	Dec. 31, 2021USD ($)performancePeriod$ / sharesshares	Dec. 31, 2020USD ($)$ / shares	Dec. 31, 2019USD ($)$ / shares	Mar. 27, 2019shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense | $		$ 3,000,000	$ (4,000,000)
Accelerated cost | $		$ 2,000,000
Options exercised (in shares)		424,832
Cash received from exercise of stock options | $		$ 8,000,000
Restricted Share Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		1,339,025
Granted (in dollars per share) | $ / shares		$ 20.91	$ 8.89	$ 10.81
Unrecognized compensation expense related to nonvested restricted shares and nonvested RSUs, adjusted for estimated forfeitures | $		$ 30,000,000
Weighted average period of recognition for unrecognized compensation expense		1 year 9 months 18 days
Total fair value of restricted shares and RSUs vested | $		$ 41,000,000	$ 30,000,000	$ 20,000,000
Restricted Stock Units (RSUs), Time-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Restricted Stock Units (RSUs), Time-Based Awards | Management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		659,609
Restricted Stock Units (RSUs), Time-Based Awards | Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		56,304
Restricted Stock Units (RSUs), Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		623,112
Granted (in dollars per share) | $ / shares			$ 10	$ 12.65
Restricted Stock Units (RSUs), Performance-Based Awards | Share-based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		311,556
Award performance Period		3 years
Granted (in dollars per share) | $ / shares		$ 29.07
Restricted Stock Units (RSUs), Performance-Based Awards | Share-based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		311,556
Number of performance periods | performancePeriod		3
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options exercised | $		$ 2,000,000
Unrecognized compensation expense related to options, adjusted for estimated forfeitures | $		$ 0	$ 0	$ 0
Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, awards granted (in shares)					20,781,225
Tronox Holdings Plc Amended And Restated Management Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares authorized	8,000,000

Share-based Compensation - Weig

Share-based Compensation - Weighted-Average Assumptions Utilized to Value Grants (Details) - Restricted Stock Units (RSUs), Performance-Based Awards - Share-based Payment Arrangement, Tranche One	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	1.56%	2.13%
Expected historical volatility	71.10%	58.30%	67.20%
Risk free interest rate	0.17%	1.42%	2.50%
Expected life (in years)	3 years	3 years	3 years

Share-Based Compensation - Rest

Share-Based Compensation - Restricted Shares and RSUs (Details) - Restricted Stock Units (RSUs) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Number of Shares
Outstanding, beginning of period (in shares)	7,303,905
Granted (in shares)	1,339,025
Vested (in shares)	(2,845,305)
Forfeited (in shares)	(682,680)
Outstanding, end of period (in shares)	5,114,945	7,303,905
Expected to vest (in shares)	7,049,472
Weighted Average Grant Date Fair Value
Outstanding, beginning of period (in dollars per share)	$ 12.39
Granted (in dollars per share)	20.91	$ 8.89	$ 10.81
Vested (in dollars per share)	14.49
Forfeited (in dollars per share)	15.16
Outstanding, ending of period (in dollars per share)	13.12	$ 12.39
Expected to vest, ending of period (in dollars per share)	$ 13.58

Share-Based Compensation - Opti

Share-Based Compensation - Option Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Number of Options
Outstanding, beginning of period (in shares)	1,201,891
Exercised (in shares)	(424,832)
Forfeited (in shares)	0
Expired (in shares)	(20,732)
Outstanding, end of period (in shares)	756,327	1,201,891
Exercisable, end of period (in shares)	756,327
Weighted Average Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 21.60
Exercised (in dollars per share)	20.25
Forfeited (in dollars per share)	0
Expired (in dollars per share)	28.26
Outstanding, end of period (in dollars per share)	22.13	$ 21.60
Exercisable, end of period (in dollars per share)	$ 22.13
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted average remaining contractual life, outstanding	1 year 3 months 18 days	2 years 2 months 8 days
Weighted average remaining contractual life, exercisable, end of period	1 year 3 months 18 days
Intrinsic value, beginning of period	$ 0
Intrinsic value, end of period	2	$ 0
Intrinsic value, exercisable	$ 2

Pension and Other Postretirem_3

Pension and Other Postretirement Healthcare Benefits (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)plan	Dec. 31, 2020USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of plans | plan	1
Pensions
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 1
Contributions expected in the next year (less than)	$ 1
Pensions | Retirement Plan Name, Other
Defined Benefit Plan Disclosure [Line Items]
Required employer contribution percentage	20.40%
Pensions | International
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 6	$ 3
Other Post Retirement Benefit Plans | International
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 1	$ 0
Other Post Retirement Benefit Plans | South Africa
Defined Benefit Plan Disclosure [Line Items]
Percentage of post-retirement and death-in-service benefits for members employed before March 1, 1994	100.00%
Annual percentage of post-retirement and death-in-service benefits for members employed on or after March 1, 1994 but before January 1, 2002	2.00%
Percentage of post-retirement and death-in-service benefits for members employed on or after January 1, 2002	0.00%
Other Post Retirement Benefit Plans | South Africa | Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of post-retirement and death-in-service benefits for members employed on or after March 1, 1994 but before January 1, 2002	50.00%

Pension and Other Postretirem_4

Pension and Other Postretirement Healthcare Benefits, Multiemployer Plans (Details) - Pension Plan - Retirement Plan Name, Other - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Multiemployer Plans [Abstract]
Pension Fund	PGB
Pension Protection Act Zone Status		Green
FIP/RP Pending/ Implemented	No
Tronox Contributions	$ 5	$ 5
Surcharge Imposed	No
Expiration date of Collective- Bargaining Agreement	Dec. 31, 2024

Pension and Other Postretirem_5

Pension and Other Postretirement Healthcare Benefits, Summary of Benefit Obligations and Plan Assets Associated with Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Change in plan assets:
Fair value of plan assets, beginning of year	$ 539
Fair value of plan assets, end of year	519	$ 539
Classification of amounts recognized in the Consolidated Balance Sheets:
Pension and postretirement healthcare benefits	(116)	(146)
Pensions
Change in benefit obligations:
Service cost	4	5	$ 4
Interest cost	14	17	21
Change in plan assets:
Employer contributions	1
Other Post Retirement Benefit Plans
Change in benefit obligations:
Service cost	1	0	0
Interest cost	2	1	1
U.S. operations | Pensions
Change in benefit obligations:
Benefit obligation, beginning of year	399	398
Service cost	0	1
Interest cost	10	12
Net actuarial (gains) losses	(10)	28
Curtailments	0	(2)
Settlements	0	(7)
Plan amendments	0	0
Foreign currency rate changes	0	0
Benefits paid	(30)	(31)
Benefit obligation, end of year	369	399	398
Change in plan assets:
Fair value of plan assets, beginning of year	344	319
Actual return on plan assets	23	41
Employer contributions	0	22
Benefits paid	(30)	(31)
Foreign currency rate changes	0	0
Settlements	0	(7)
Fair value of plan assets, end of year	337	344	319
Net underfunded status of plans	(32)	(55)
Classification of amounts recognized in the Consolidated Balance Sheets:
Other long-term assets	0	0
Accrued liabilities	0	0
Pension and postretirement healthcare benefits	(32)	(55)
Total liabilities	(32)	(55)
Accumulated other comprehensive (income) loss	81	98
Total	49	43
U.S. operations | Other Post Retirement Benefit Plans
Change in benefit obligations:
Benefit obligation, beginning of year	2	2
Service cost	0	0
Interest cost	0	0
Net actuarial (gains) losses	0	0
Curtailments	0	0
Settlements	0	0
Plan amendments	0	0
Foreign currency rate changes	0	0
Benefits paid	0	0
Benefit obligation, end of year	2	2	2
Change in plan assets:
Fair value of plan assets, beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	0	0
Benefits paid	0	0
Foreign currency rate changes	0	0
Settlements	0	0
Fair value of plan assets, end of year	0	0	0
Net underfunded status of plans	(2)	(2)
Classification of amounts recognized in the Consolidated Balance Sheets:
Other long-term assets	0	0
Accrued liabilities	(1)	0
Pension and postretirement healthcare benefits	(1)	(2)
Total liabilities	(2)	(2)
Accumulated other comprehensive (income) loss	0	0
Total	(2)	(2)
International | Pensions
Change in benefit obligations:
Benefit obligation, beginning of year	252	232
Service cost	4	4
Interest cost	4	5
Net actuarial (gains) losses	(10)	20
Curtailments	0	0
Settlements	0	(6)
Plan amendments	0	0
Foreign currency rate changes	(2)	6
Benefits paid	(14)	(9)
Benefit obligation, end of year	234	252	232
Change in plan assets:
Fair value of plan assets, beginning of year	195	186
Actual return on plan assets	(3)	15
Employer contributions	6	3
Benefits paid	(14)	(9)
Foreign currency rate changes	(1)	6
Settlements	0	(6)
Fair value of plan assets, end of year	183	195	186
Net underfunded status of plans	(51)	(57)
Classification of amounts recognized in the Consolidated Balance Sheets:
Other long-term assets	20	14
Accrued liabilities	(4)	(5)
Pension and postretirement healthcare benefits	(67)	(66)
Total liabilities	(71)	(71)
Accumulated other comprehensive (income) loss	10	12
Total	(41)	(45)
International | Other Post Retirement Benefit Plans
Change in benefit obligations:
Benefit obligation, beginning of year	23	13
Service cost	1	0
Interest cost	2	1
Net actuarial (gains) losses	(3)	3
Curtailments	0	(1)
Settlements	0	0
Plan amendments	(4)	9
Foreign currency rate changes	(2)	(2)
Benefits paid	(1)	0
Benefit obligation, end of year	16	23	13
Change in plan assets:
Fair value of plan assets, beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	1	0
Benefits paid	(1)	0
Foreign currency rate changes	0	0
Settlements	0	0
Fair value of plan assets, end of year	0	0	$ 0
Net underfunded status of plans	(16)	(23)
Classification of amounts recognized in the Consolidated Balance Sheets:
Other long-term assets	0	0
Accrued liabilities	0	0
Pension and postretirement healthcare benefits	(16)	(23)
Total liabilities	(16)	(23)
Accumulated other comprehensive (income) loss	3	12
Total	$ (13)	$ (11)

Pension and Other Postretirem_6

Pension and Other Postretirement Healthcare Benefits, Accumulated Benefit Obligations and Projected Benefit Obligations (Details) - Pensions $ in Millions	Dec. 31, 2021USD ($)
U.S. operations
Pension and Other Postretirement Healthcare Benefits [Abstract]
Projected benefit obligation (PBO)	$ 369
Accumulated benefit obligation (ABO)	369
Fair value of plan assets	337
International
Pension and Other Postretirement Healthcare Benefits [Abstract]
Projected benefit obligation (PBO)	71
Accumulated benefit obligation (ABO)	47
Fair value of plan assets	$ 0

Pension and Other Postretirem_7

Pension and Other Postretirement Healthcare Benefits, Summary of Expected Benefit Payments (Details) $ in Millions	Dec. 31, 2021USD ($)
U.S. operations | Pensions
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2022	$ 32
2023	29
2024	28
2025	27
2026	26
2027-2031	115
U.S. operations | Other Post Retirement Benefit Plans
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2022	0
2023	0
2024	0
2025	0
2026	0
2027-2031	1
International | Pensions
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2022	11
2023	9
2024	10
2025	11
2026	11
2027-2031	57
International | Other Post Retirement Benefit Plans
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2022	0
2023	0
2024	1
2025	1
2026	1
2027-2031	$ 6

Pension and Other Postretirem_8

Pension and Other Postretirement Healthcare Benefits, Components of Net Periodic Pension and Postretirement Healthcare Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pensions
Net periodic cost:
Service cost	$ 4	$ 5	$ 4
Interest cost	14	17	21
Expected return on plan assets	(26)	(22)	(22)
Net amortization of actuarial loss	5	4	2
Settlement losses (gains)	0	0	(1)
Curtailment (gains)	0	(2)	0
Total net periodic cost - continuing operations	(3)	2	4
Other Post Retirement Benefit Plans
Net periodic cost:
Service cost	1	0	0
Interest cost	2	1	1
Expected return on plan assets	0	0	0
Net amortization of actuarial loss	1	0	0
Settlement losses (gains)	0	0	0
Curtailment (gains)	0	0	0
Total net periodic cost - continuing operations	$ 4	$ 1	$ 1

Pension and Other Postretirem_9

Pension and Other Postretirement Healthcare Benefits, Weighted Average Assumptions Used (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pensions | U.S. operations
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	2.60%	3.39%	4.34%
Expected return on plan assets	6.70%	6.03%	5.69%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	2.97%	2.60%	3.39%
Rate of compensation increase		3.00%	3.00%
Pensions | International
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	1.47%	1.98%	2.50%
Expected return on plan assets	2.50%	2.50%	3.00%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	1.87%	1.45%	1.98%
Rate of compensation increase	4.68%	4.65%	4.67%
Other Post Retirement Benefit Plans | U.S. operations
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	2.59%	3.36%	4.00%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	2.83%	2.59%	3.36%
Other Post Retirement Benefit Plans | International
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	10.19%	8.72%	10.25%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	10.33%	9.51%	9.91%

Pension and Other Postretire_10

Pension and Other Postretirement Healthcare Benefits, Asset Categories and Associated Asset Allocations for Company's Funded Retirement Plans (Details)	Dec. 31, 2021	Dec. 31, 2020
U.S. operations
Pension and Other Postretirement Healthcare Benefits [Abstract]
Actual	100.00%	100.00%
Target	100.00%	100.00%
U.S. operations | Equity securities
Pension and Other Postretirement Healthcare Benefits [Abstract]
Actual	49.00%	43.00%
Target	49.00%	42.00%
U.S. operations | Debt securities
Pension and Other Postretirement Healthcare Benefits [Abstract]
Actual	46.00%	39.00%
Target	48.00%	40.00%
U.S. operations | Real estate
Pension and Other Postretirement Healthcare Benefits [Abstract]
Actual	1.00%	1.00%
Target	0.00%	0.00%
U.S. operations | Other
Pension and Other Postretirement Healthcare Benefits [Abstract]
Actual	4.00%	17.00%
Target	3.00%	18.00%
International
Pension and Other Postretirement Healthcare Benefits [Abstract]
Actual	100.00%	100.00%
Target	100.00%	100.00%
International | Equity securities
Pension and Other Postretirement Healthcare Benefits [Abstract]
Actual	0.00%	0.00%
Target	0.00%	0.00%
International | Debt securities
Pension and Other Postretirement Healthcare Benefits [Abstract]
Actual	43.00%	39.00%
Target	43.00%	30.00%
International | Real estate
Pension and Other Postretirement Healthcare Benefits [Abstract]
Actual	0.00%	0.00%
Target	0.00%	0.00%
International | Other
Pension and Other Postretirement Healthcare Benefits [Abstract]
Actual	57.00%	61.00%
Target	57.00%	70.00%

Pension and Other Postretire_11

Pension and Other Postretirement Healthcare Benefits, Summary of Fair Value of Pension Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	$ 539
Change in plan assets:
Fair value of plan assets, beginning of year	539
Fair value of plan assets, end of year	519	$ 539
Quoted Prices in Active Markets for Identical Assets (Level 1)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	322
Change in plan assets:
Fair value of plan assets, beginning of year	322
Fair value of plan assets, end of year	305	322
Significant Other Observable Inputs (Level 2)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	106
Change in plan assets:
Fair value of plan assets, beginning of year	106
Fair value of plan assets, end of year	116	106
Significant Unobservable Inputs (Level 3)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	111
Change in plan assets:
Fair value of plan assets, beginning of year	111
Fair value of plan assets, end of year	98	111
Global equity securities
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	83
Change in plan assets:
Fair value of plan assets, beginning of year	83
Fair value of plan assets, end of year	93	83
Global equity securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	83
Change in plan assets:
Fair value of plan assets, beginning of year	83
Fair value of plan assets, end of year	93	83
Global equity securities | Significant Other Observable Inputs (Level 2)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Global equity securities | Significant Unobservable Inputs (Level 3)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Global comingled equity funds
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	66
Change in plan assets:
Fair value of plan assets, beginning of year	66
Fair value of plan assets, end of year	73	66
Global comingled equity funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	66
Change in plan assets:
Fair value of plan assets, beginning of year	66
Fair value of plan assets, end of year	73	66
Global comingled equity funds | Significant Other Observable Inputs (Level 2)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Global comingled equity funds | Significant Unobservable Inputs (Level 3)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
US government bonds
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	70
Change in plan assets:
Fair value of plan assets, beginning of year	70
Fair value of plan assets, end of year	81	70
US government bonds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	70
Change in plan assets:
Fair value of plan assets, beginning of year	70
Fair value of plan assets, end of year	81	70
US government bonds | Significant Other Observable Inputs (Level 2)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
US government bonds | Significant Unobservable Inputs (Level 3)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Foreign government bonds
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	37
Change in plan assets:
Fair value of plan assets, beginning of year	37
Fair value of plan assets, end of year	39	37
Foreign government bonds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	37
Change in plan assets:
Fair value of plan assets, beginning of year	37
Fair value of plan assets, end of year	39	37
Foreign government bonds | Significant Other Observable Inputs (Level 2)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Foreign government bonds | Significant Unobservable Inputs (Level 3)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
US corporate bonds
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	62
Change in plan assets:
Fair value of plan assets, beginning of year	62
Fair value of plan assets, end of year	73	62
US corporate bonds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
US corporate bonds | Significant Other Observable Inputs (Level 2)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	62
Change in plan assets:
Fair value of plan assets, beginning of year	62
Fair value of plan assets, end of year	73	62
US corporate bonds | Significant Unobservable Inputs (Level 3)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Foreign corporate bonds
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	43
Change in plan assets:
Fair value of plan assets, beginning of year	43
Fair value of plan assets, end of year	42	43
Foreign corporate bonds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Foreign corporate bonds | Significant Other Observable Inputs (Level 2)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	43
Change in plan assets:
Fair value of plan assets, beginning of year	43
Fair value of plan assets, end of year	42	43
Foreign corporate bonds | Significant Unobservable Inputs (Level 3)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Property/ real estate fund
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	1
Change in plan assets:
Fair value of plan assets, beginning of year	1
Fair value of plan assets, end of year	1	1
Property/ real estate fund | Quoted Prices in Active Markets for Identical Assets (Level 1)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Property/ real estate fund | Significant Other Observable Inputs (Level 2)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	1
Change in plan assets:
Fair value of plan assets, beginning of year	1
Fair value of plan assets, end of year	1	1
Property/ real estate fund | Significant Unobservable Inputs (Level 3)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Insurance contracts
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	111
Change in plan assets:
Fair value of plan assets, beginning of year	111
Fair value of plan assets, end of year	98	111
Insurance contracts | Quoted Prices in Active Markets for Identical Assets (Level 1)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Insurance contracts | Significant Other Observable Inputs (Level 2)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Insurance contracts | Significant Unobservable Inputs (Level 3)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	111	104
Change in plan assets:
Fair value of plan assets, beginning of year	111	104
Actual return on plan assets	(6)	9
Purchases, sales, settlements	(6)	(5)
Transfers in/out of Level 3	0	0
Foreign currency rate changes	(1)	3
Fair value of plan assets, end of year	98	111
Cash & cash equivalents
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	66
Change in plan assets:
Fair value of plan assets, beginning of year	66
Fair value of plan assets, end of year	19	66
Cash & cash equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	66
Change in plan assets:
Fair value of plan assets, beginning of year	66
Fair value of plan assets, end of year	19	66
Cash & cash equivalents | Significant Other Observable Inputs (Level 2)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	0	0
Cash & cash equivalents | Significant Unobservable Inputs (Level 3)
Pension and Other Postretirement Healthcare Benefits [Abstract]
Fair value of plan assets, beginning of year	0
Change in plan assets:
Fair value of plan assets, beginning of year	0
Fair value of plan assets, end of year	$ 0	$ 0

Pension and Other Postretire_12

Pension and Other Postretirement Healthcare Benefits, Defined Contribution Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2014	Dec. 31, 2006
South Africa Defined Contribution Plans
Defined Contribution Plan Disclosure [Line Items]
Compensation expense	$ 5	$ 4	$ 4
South Africa Defined Contribution Plans | Minimum
Defined Contribution Plan Disclosure [Line Items]
Maximum annual contributions per employee, percent	10.00%
South Africa Defined Contribution Plans | Maximum
Defined Contribution Plan Disclosure [Line Items]
Maximum annual contributions per employee, percent	15.00%
Qualified Plan | U.S. Savings Investment Plan
Defined Contribution Plan Disclosure [Line Items]
Employer matching contribution percentage, first portion	100.00%
Employee contribution percentage, first portion	6.00%
Discretionary contribution percentage	6.00%	6.00%	6.00%	6.00%
Discretionary contribution vesting period	3 years
Compensation expenses associated with matching contribution	$ 5	$ 4	$ 4
Compensation expense associated with discretionary contribution	5	4	4
Nonqualified Plan | U.S. Benefit Restoration Plan
Defined Contribution Plan Disclosure [Line Items]
Compensation expenses associated with matching contribution	$ 1	$ 1	$ 2
Maximum annual contributions per employee, percent					20.00%

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($)	Mar. 01, 2021	Feb. 23, 2021	May 13, 2020	Apr. 10, 2019	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021	Sep. 30, 2021	Dec. 17, 2020	Dec. 29, 2019	May 09, 2018
Related Party Transaction [Line Items]
Cash consideration						$ 0	$ 0	$ 1,675,000,000
Common stock, shares outstanding (in shares)					153,934,677	153,934,677	143,557,479		153,934,677
Other income (expense)						$ 12,000,000	$ 26,000,000	3,000,000
Prepaid and other assets					$ 132,000,000	132,000,000	200,000,000		$ 132,000,000
Interest expense (less than)						157,000,000	189,000,000	$ 201,000,000
MGT Loan
Related Party Transaction [Line Items]
Note payable					33,000,000	33,000,000			33,000,000		$ 36,000,000
Notes payable due within 12 months					$ 7,000,000	7,000,000			$ 7,000,000
Interest expense (less than)						1,000,000	0
Cristal, TiO2 Business
Related Party Transaction [Line Items]
Cash consideration				$ 1,675,000,000
Tronox Holdings plc shares issued (in shares)				37,580,000
Cristal International Holdings B.V. | MGT Loan
Related Party Transaction [Line Items]
Interest expense (less than)						$ 4,000,000	0
Cristal International Holdings B.V.
Related Party Transaction [Line Items]
Ownership percentage					24.00%	24.00%			24.00%
Common stock, shares outstanding (in shares)					37,580,000	37,580,000			37,580,000
Advanced Metal Industries Cluster And Toho Titanium Metal Co. Ltd (ATTM) | Slagger
Related Party Transaction [Line Items]
Commitment to Loan													$ 322,000,000
Exxaro
Related Party Transaction [Line Items]
Number of shares sold in related party transaction (in shares)	21,975,315	7,246,035
Exxaro | South African Subsidiaries
Related Party Transaction [Line Items]
Ownership percentage					26.00%	26.00%			26.00%
Affiliated Entity | Purchase Of Chlorine Gas
Related Party Transaction [Line Items]
Purchases from related party					$ 8,000,000	$ 5,000,000
Affiliated Entity | Advanced Metal Industries Cluster Company Limited | Option Agreement, Option To Acquire Special Purchase Vehicle
Related Party Transaction [Line Items]
Ownership percentage by related party													90.00%
Affiliated Entity | Advanced Metal Industries Cluster Company Limited | Option Agreement, Amount Loaned For Capital Expenditures And Operational Expenses, Interest Earned
Related Party Transaction [Line Items]
Notes receivable from related party					9,000,000	9,000,000	6,000,000		$ 9,000,000
Affiliated Entity | Advanced Metal Industries Cluster Company Limited | Acquisition Of Assets Producing Metal Grade TiCl4
Related Party Transaction [Line Items]
Notes receivable from related party												$ 36,000,000
Affiliated Entity | AMIC | Option Agreement, Amounts To Be Reimbursed For Capital Expenditures And Operational Expenses
Related Party Transaction [Line Items]
Due from related parties													$ 125,000,000
Payments to fund long-term loans to related parties									36,000,000
Affiliated Entity | AMIC | Amended Options Agreement, Second Option, Loan Amount Forgiven | Maximum
Related Party Transaction [Line Items]
Amount of transaction with related party										$ 125,000,000
Affiliated Entity | AMIC | Amended Technical Services Agreement, Monthly Management Fee
Related Party Transaction [Line Items]
Revenue from related party			$ 1,000,000
Other income (expense)						8,000,000	5,000,000
Prepaid and other assets					1,000,000	1,000,000	1,000,000		1,000,000
Affiliated Entity | AMIC | Receivable From TiCl4 Product Sales
Related Party Transaction [Line Items]
Due from related parties, current					6,000,000	6,000,000	7,000,000		6,000,000
Affiliated Entity | Tasnee | Pre-Acquisition Activity
Related Party Transaction [Line Items]
Accounts receivable from related party					8,000,000	8,000,000	9,000,000		8,000,000
Affiliated Entity | Tasnee | Reimbursable Stamp Duty Taxes
Related Party Transaction [Line Items]
Accounts receivable from related party					4,000,000	4,000,000			4,000,000
Affiliated Entity | Tasnee | Pre-Acquisition Tax Settlements
Related Party Transaction [Line Items]
Accounts receivable from related party					3,000,000	3,000,000			3,000,000
Affiliated Entity | Advanced Metal Industries Cluster And Toho Titanium Metal Co. Ltd (ATTM) | Purchase Of Chlorine Gas
Related Party Transaction [Line Items]
Due to related parties, current					$ 1,000,000	1,000,000	3,000,000		$ 1,000,000
Affiliated Entity | Advanced Metal Industries Cluster And Toho Titanium Metal Co. Ltd (ATTM) | Acquisition Of Assets Producing Metal Grade TiCl4
Related Party Transaction [Line Items]
Ownership percentage												65.00%
AMIC
Related Party Transaction [Line Items]
Revenue from related party						$ 31,000,000	$ 25,000,000

Segment Information, Net Sales

Segment Information, Net Sales to External Customers, by Product Segment (Details)	12 Months Ended
	Dec. 31, 2021segmentcustomer	Dec. 31, 2020customer	Dec. 31, 2019customer
Segment Information [Abstract]
Number of operating segments | segment	1
Sales Revenue, Net | Customer Concentration Risk | 10 Largest Third-party TiO2 Customers
Segment Information [Abstract]
Number of largest customers representing specified percentage of net sales | customer	10	10	10
Concentration percentage	28.00%	32.00%	31.00%

Segment Information, Net Sale t

Segment Information, Net Sale to External Customers, by Geographic Region (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net Sale to External Customers, by Geographic Region [Abstract]
Net sales	$ 3,572	$ 2,758	$ 2,642
U.S. operations
Net Sale to External Customers, by Geographic Region [Abstract]
Net sales	716	653	676
United Kingdom
Net Sale to External Customers, by Geographic Region [Abstract]
Net sales	396	301	218
Australia
Net Sale to External Customers, by Geographic Region [Abstract]
Net sales	873	637	674
South Africa
Net Sale to External Customers, by Geographic Region [Abstract]
Net sales	441	330	370
Saudi Arabia
Net Sale to External Customers, by Geographic Region [Abstract]
Net sales	420	269	218
Other - international
Net Sale to External Customers, by Geographic Region [Abstract]
Net sales	$ 726	$ 568	$ 486

Segment Information, Schedule o

Segment Information, Schedule of Property, Plant and Equipment, Net and Mineral Leaseholds, Net, by Geographic Region (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment, Net and Mineral Leaseholds, Net, by Geographic Region [Abstract]
Property plant and equipment and mineral leaseholds, net	$ 2,542	$ 2,643
U.S. operations
Property, Plant and Equipment, Net and Mineral Leaseholds, Net, by Geographic Region [Abstract]
Property plant and equipment and mineral leaseholds, net	251	261
United Kingdom
Property, Plant and Equipment, Net and Mineral Leaseholds, Net, by Geographic Region [Abstract]
Property plant and equipment and mineral leaseholds, net	97	101
Saudi Arabia
Property, Plant and Equipment, Net and Mineral Leaseholds, Net, by Geographic Region [Abstract]
Property plant and equipment and mineral leaseholds, net	241	262
South Africa
Property, Plant and Equipment, Net and Mineral Leaseholds, Net, by Geographic Region [Abstract]
Property plant and equipment and mineral leaseholds, net	705	768
Australia
Property, Plant and Equipment, Net and Mineral Leaseholds, Net, by Geographic Region [Abstract]
Property plant and equipment and mineral leaseholds, net	1,000	995
Other - international
Property, Plant and Equipment, Net and Mineral Leaseholds, Net, by Geographic Region [Abstract]
Property plant and equipment and mineral leaseholds, net	$ 248	$ 256