BorgWarner (BWA) 10-Q3 Nov 212021 Q3 Quarterly reportFinancial data

Company Profile

Cover

Cover - shares	9 Months Ended
Cover - shares	Sep. 30, 2021	Oct. 29, 2021
Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	1-12162
Entity Registrant Name	BORGWARNER INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-3404508
Entity Address, Address Line One	3850 Hamlin Road,
Entity Address, City or Town	Auburn Hills,
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	48326
City Area Code	248
Local Phone Number	754-9200
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
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		239,771,275
Entity Central Index Key	0000908255
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Common Stock, par value $0.01 per share
Entity Information
Title of each class	Common Stock, par value $0.01 per share
Trading Symbol(s)	BWA
Name of each exchange on which registered	NYSE
1.00% Senior Notes due 2031
Entity Information
Title of each class	1.00% Senior Notes due 2031
Trading Symbol(s)	BWA31
Name of each exchange on which registered	NYSE

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
ASSETS
Cash and cash equivalents	$ 1,507	$ 1,650
Restricted cash	3	0
Receivables, net	2,890	2,919
Inventories, net	1,649	1,286
Prepayments and other current assets	308	312
Assets held for sale	105	0
Total current assets	6,462	6,167
Property, plant and equipment, net	4,398	4,591
Goodwill	3,285	2,627
Other intangible assets, net	1,134	1,096
Investments and other long-term receivables	513	820
Other non-current assets	699	728
Total assets	16,491	16,029
LIABILITIES AND EQUITY
Notes payable and other short-term debt	54	49
Accounts payable	2,131	2,352
Other current liabilities	1,430	1,409
Liabilities held for sale	22	0
Total current liabilities	3,637	3,810
Long-term debt	4,288	3,738
Retirement-related liabilities	518	576
Other non-current liabilities	1,028	1,181
Total liabilities	9,471	9,305
Commitments and contingencies
Common stock	3	3
Capital in excess of par value	2,617	2,614
Retained earnings	6,582	6,296
Accumulated other comprehensive loss	(746)	(651)
Common stock held in treasury, at cost	(1,810)	(1,834)
Total BorgWarner Inc. stockholders’ equity	6,646	6,428
Noncontrolling interest	374	296
Total equity	7,020	6,724
Total liabilities and equity	$ 16,491	$ 16,029

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Net sales	$ 3,416	$ 2,534	$ 11,183	$ 6,239
Cost of sales	2,766	2,017	8,953	5,101
Gross profit	650	517	2,230	1,138
Selling, general and administrative expenses	343	204	1,084	601
Other operating expense, net	54	29	173	133
Operating income	253	284	973	404
Equity in affiliates’ earnings, net of tax	(12)	(3)	(40)	(10)
Unrealized loss on equity securities	61	0	337	9
Interest income	(3)	(3)	(9)	(8)
Interest expense	21	20	84	50
Other postretirement income	(10)	(2)	(33)	(5)
Earnings before income taxes and noncontrolling interest	196	272	634	368
Provision for income taxes	79	143	149	186
Net earnings	117	129	485	182
Net earnings attributable to noncontrolling interest, net of tax	21	18	77	40
Net earnings attributable to BorgWarner Inc.	$ 96	$ 111	$ 408	$ 142
Earnings per share attributable to BorgWarner Inc. — basic (in dollar per share)	$ 0.40	$ 0.54	$ 1.71	$ 0.69
Earnings per share attributable to BorgWarner Inc. — diluted (in dollar per share)	$ 0.40	$ 0.53	$ 1.70	$ 0.69
Weighted average shares outstanding:
Basic (in shares)	238.2	206	238	205.9
Diluted (in shares)	239.8	207.3	239.3	206.7

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net earnings attributable to BorgWarner Inc.		$ 96	$ 111	$ 408	$ 142
Other comprehensive income (loss)
Foreign currency translation adjustments	[1]	(81)	49	(111)	(11)
Hedge instruments	[1]	(1)	1	(3)	0
Defined benefit postretirement plans	[1]	9	7	19	8
Total other comprehensive (loss) income attributable to BorgWarner Inc.		(73)	57	(95)	(3)
Comprehensive income attributable to BorgWarner Inc.	[1]	23	168	313	139
Net earnings attributable to noncontrolling interest, net of tax		21	18	77	40
Other comprehensive (loss) income attributable to noncontrolling interest	[1]	(6)	6	(11)	3
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest		$ 38	$ 192	$ 379	$ 182

[1]	Net of income taxes.

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
OPERATING
Net cash provided by operating activities	$ 764	$ 808
INVESTING
Capital expenditures, including tooling outlays	(494)	(262)
Capital expenditures for damage to property, plant and equipment	(2)	(18)
Insurance proceeds received for damage to property, plant and equipment	5	23
Payments for businesses acquired, net of cash and restricted cash acquired	(759)	(2)
Proceeds from settlement of net investment hedges, net	21	12
Payments for investments in equity securities	(15)	(2)
Proceeds from asset disposals and other, net	6	0
Net cash used in investing activities	(1,238)	(249)
FINANCING
Net (decrease) increase in notes payable	(8)	6
Additions to debt	1,273	1,163
Payments for debt issuance costs	(10)	(11)
Repayments of debt, including current portion	(698)	(308)
Payments for stock-based compensation items	(14)	(13)
Purchase of noncontrolling interest	(33)	0
Dividends paid to BorgWarner stockholders	(122)	(105)
Dividends paid to noncontrolling stockholders	(38)	(21)
Net cash provided by financing activities	350	711
Effect of exchange rate changes on cash	(16)	19
Net (decrease) increase in cash, cash equivalents and restricted cash	(140)	1,289
Cash and cash equivalents at beginning of year	1,650	832
Cash, cash equivalents and restricted cash at end of period	$ 1,510	$ 2,121

BASIS OF PRESENTATION

BASIS OF PRESENTATION	9 Months Ended
BASIS OF PRESENTATION	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION	BASIS OF PRESENTATION The accompanying unaudited Condensed Consolidated Financial Statements of BorgWarner Inc. and Consolidated Subsidiaries (the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes necessary for a comprehensive presentation of financial position, results of operations and cash flow activity required by GAAP for complete financial statements. In the opinion of management, all normal recurring adjustments necessary for a fair statement of results have been included. Certain prior period amounts have been reclassified to conform to the current period presentation. Operating results for the three and nine months ended September 30, 2021 are not necessarily indicative of the results that may be expected for the year ending December 31, 2021. The balance sheet as of December 31, 2020 was derived from the audited financial statements as of that date. For further information, refer to the Consolidated Financial Statements and Footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. Management makes estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and accompanying notes, as well as the amounts of revenues and expenses reported during the periods covered by those financial statements and accompanying notes. Actual results could differ from these estimates. COVID-19 Pandemic and Other Supply Disruptions Throughout 2020, COVID-19 materially impacted the Company’s business and results of operations. During the first quarter of 2020, the impact of COVID-19 was initially experienced primarily by operations in China. Following the declaration of COVID-19 as a global pandemic on March 11, 2020, government authorities around the world began to impose shelter-in-place orders and other restrictions. As a result, many OEMs began suspending manufacturing operations, particularly in North America and Europe. This led to various temporary closures of, or reduced operations at, the Company’s manufacturing facilities, late in the first quarter of 2020 and throughout the second quarter of 2020. During the second half of 2020, as global management of COVID-19 evolved and government restrictions were removed or lessened, production levels improved, and substantially all of the Company’s production facilities resumed closer to normal operations by the end of the third quarter of 2020. During 2021, trailing impacts of the shut downs and production declines related, in part, to COVID-19 created component supply constraints, particularly semiconductor chips, that have and are expected to continue to have significant impacts on global industry production levels. In addition, it is possible a resurgence of the COVID-19 pandemic could result in adverse impacts in the future. Management cannot reasonably estimate the full impact the ongoing supply constraints or the COVID-19 pandemic could have on the Company’s financial condition, results of operations or cash flows in the future.

NEW ACCOUNTING PRONOUNCEMENTS

NEW ACCOUNTING PRONOUNCEMENTS	9 Months Ended
NEW ACCOUNTING PRONOUNCEMENTS	Sep. 30, 2021
Accounting Standards Update and Change in Accounting Principle [Abstract]
NEW ACCOUNTING PRONOUNCEMENTS	NEW ACCOUNTING PRONOUNCEMENTS In January 2020, the FASB issued Accounting Standards Update (“ASU”) No. 2020-1, “Investments - Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815).” It clarifies the interaction among the accounting for equity securities, equity method investments, and certain derivative instruments. Specifically, for the purposes of applying the ASC Topic 321 measurement alternative, a company should consider observable transactions immediately before applying or upon discontinuing the equity method. Additionally, when determining the accounting for certain forward contracts and purchased options entered into to purchase securities, a company should not consider if the underlying securities would be accounted for under the equity method (ASC Topic 323) or fair value option (ASC Topic 825). This guidance was effective for interim and annual periods beginning after December 15, 2020. The Company adopted this guidance as of January 1, 2021, and there was no impact on its Consolidated Financial Statements. In December 2019, the FASB issued ASU No. 2019-12, “Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes.” It removes certain exceptions to the general principles in ASC Topic 740 and improves consistent application of and simplifies GAAP for other areas of ASC Topic 740 by clarifying and amending existing guidance. This guidance was effective for interim and annual reporting periods beginning after December 15, 2020. The Company adopted this guidance as of January 1, 2021, and the impact on its Consolidated Financial Statements was immaterial. In August 2018, the FASB issued ASU No. 2018-14, “Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20).” It (i) requires the removal of disclosures that are no longer considered cost beneficial; (ii) clarifies specific requirements of certain disclosures; and (iii) adds new disclosure requirements, including the weighted average interest crediting rates for cash balance plans and other plans with promised interest crediting rates, and reasons for significant gains and losses related to changes in the benefit obligation. This guidance was effective for annual periods beginning after December 15, 2020. The Company adopted this guidance as of January 1, 2021, and there was no impact on these Condensed Consolidated Financial Statements; however, the Company will include the annual disclosures as required in its Annual Report on Form 10-K.

ACQUISITIONS

ACQUISITIONS	9 Months Ended
ACQUISITIONS	Sep. 30, 2021
Business Combination and Asset Acquisition [Abstract]
ACQUISITIONS	ACQUISITIONS In accordance with ASC Topic 805, “Business Combinations,” acquisitions are recorded using the acquisition method of accounting. The Company recognizes and measures the identifiable assets acquired, liabilities assumed, and any non-controlling interest as of the acquisition date fair value. Various valuation techniques are used to determine the fair value of intangible assets, with the primary techniques being forms of the income approach, specifically the relief-from-royalty and multi-period excess earnings valuation methods. Under these valuation approaches, the Company is required to make estimates and assumptions from a market participant perspective and may include revenue growth rates, estimated earnings, royalty rates, obsolescence factors, contributory asset charges, customer attrition and discount rates. AKASOL AG On June 4, 2021, the Company completed its voluntary public takeover offer for shares of AKASOL AG (“AKASOL”), resulting in ownership of 89% of AKASOL’s outstanding shares. The Company paid approximately €648 million ($788 million) to settle the offer from current cash balances, which included proceeds received from its public offering of 1.00% Senior Notes due 2031 completed on May 19, 2021. Refer to Note 14, “Notes Payable And Debt,” to the Condensed Consolidated Financial Statements for more information. Following the settlement of the offer, AKASOL became a consolidated majority-owned subsidiary of the Company. Upon that settlement, the Company also consolidated approximately €64 million ($77 million) of gross debt of AKASOL. Subsequent to the completion of the voluntary public takeover offer, the Company purchased additional shares of AKASOL for €28 million ($33 million) increasing its ownership to 93% as of September 30, 2021. The acquisition further strengthens BorgWarner’s commercial vehicle and industrial electrification capabilities, which positions the Company to capitalize on what it believes to be a fast-growing battery module and pack market. On August 2, 2021, the Company initiated a merger squeeze-out process under German law for the purpose of acquiring 100% of AKASOL. To determine the appropriate cash compensation for all outstanding AKASOL shares, the Company has engaged a valuation firm to determine the current fair value of the shares, the adequacy of which will be subsequently examined by an independent, court-appointed auditor. The overall process will take several months and will require a resolution to be passed by AKASOL’s shareholders in a general meeting. The purchase price was allocated on a preliminary basis as of June 4, 2021. Assets acquired and liabilities assumed were recorded at estimated fair values based on management’s estimates, available information, and supportable assumptions that management considered reasonable. Certain estimated values for the acquisition, including goodwill and deferred taxes, are not yet finalized, and the preliminary purchase price allocations are subject to change as the Company completes its analysis of the fair value at the date of acquisition. The final valuation of assets acquired and liabilities assumed may be materially different from the estimated values shown below. The following table summarizes the estimated fair values of assets acquired and liabilities assumed as of June 4, 2021, the acquisition date: (in millions) Initial Allocation Measurement Period Adjustments Revised Allocation ASSETS Cash and cash equivalents (including restricted cash of $16 million) $ 29 $ — $ 29 Receivables, net 16 — 16 Inventories, net 42 (2) 40 Prepayments and other current assets 5 — 5 Property, plant and equipment, net 106 4 110 Goodwill 707 (4) 703 Other intangible assets, net 130 — 130 Total assets acquired 1,035 (2) 1,033 LIABILITIES Notes payable and other short-term debt 8 — 8 Accounts payable 22 — 22 Other current liabilities 13 5 18 Long-term debt 69 — 69 Other non-current liabilities 39 (7) 32 Total liabilities assumed 151 (2) 149 Noncontrolling interest 96 — 96 Net assets and noncontrolling interest acquired $ 788 $ — $ 788 Any excess of the purchase price over the estimated fair value of net assets was recognized as goodwill. Goodwill of $703 million, including the impact of measurement period adjustments, was recorded within the Company’s Air Management segment. The goodwill consists of the Company’s expected future economic benefits that will arise from acquiring this business, which is established in making next-generation products for electric vehicles and the potential development and deployment of future technologies, across a global customer base, in this market and across adjacent industries. The goodwill is not expected to be deductible for tax purposes. The following table summarizes the other intangible assets acquired: (in millions) Estimated Life Estimated Fair Value Amortized intangible assets: Developed technology 5 years $ 70 Customer relationships 11 years 25 Total amortized intangible assets 95 Unamortized trade name Indefinite 35 Total other intangible assets $ 130 Generally accepted valuation practice indicates that assets and liabilities may be valued using a range of methodologies. The property, plant and equipment acquired were valued using a combination of cost and market approaches. Goodwill and identifiable intangible assets were valued using the income approach. Noncontrolling interests were valued using a market approach. Management used a third-party valuation firm to assist in the determination of the preliminary purchase accounting fair values; however, management ultimately oversees the third-party valuation firm to ensure that the transaction-specific assumptions are appropriate. The impact of the AKASOL acquisition on net sales and net earnings was immaterial for the three and nine months ended September 30, 2021. Due to its insignificant size relative to the Company, supplemental pro forma financial information of the combined entity for the current and prior reporting period is not provided. Delphi Technologies PLC On October 1, 2020, the Company completed its acquisition of 100% of the outstanding ordinary shares of Delphi Technologies PLC (“Delphi Technologies”) from the shareholders of Delphi Technologies pursuant to the terms of the Transaction Agreement, dated January 28, 2020, as amended on May 6, 2020, by and between the Company and Delphi Technologies (the “Transaction Agreement”). Pursuant to the terms of the Transaction Agreement, the Company issued, in exchange for each Delphi Technologies share, 0.4307 of a share of common stock of the Company, par value $0.01 per share and cash in lieu of any fractional share. In the aggregate, the Company delivered consideration of approximately $2.4 billion. The acquisition strengthens the Company’s electronics and power electronics products, capabilities and scale, positions the Company for greater growth as electrified propulsion systems gain momentum and enhances key combustion, commercial vehicle and aftermarket product offerings. Upon closing, the Company also assumed approximately $800 million (par value) in aggregate principal amount of Delphi Technologies’ outstanding 5.000% Senior Notes due 2025 (the “DT Notes”). On October 5, 2020, the Company completed its offer to exchange new BorgWarner notes for the DT Notes. Approximately $776 million in aggregate principal amount of outstanding DT Notes, representing 97% of the $800 million total outstanding principal amount of the DT Notes, were validly exchanged and cancelled for new BorgWarner notes. Following such cancellation, approximately $24 million in aggregate principal amount of the DT Notes remain outstanding. Since the majority of the DT Notes were exchanged, for the DT notes that remain outstanding, the Company was able to eliminate substantially all of the restrictive covenants and events of default not related to payment on the $800 million in outstanding senior notes of the Company. The following table summarizes the purchase price for Delphi Technologies: (in millions, except for share data) BorgWarner common stock issued for purchase of Delphi Technologies 37,188,819 BorgWarner share price at October 1, 2020 $ 39.54 Fair value of stock consideration $ 1,470 Stock compensation consideration 7 Total stock consideration $ 1,477 Cash consideration 18 Repayment of Delphi Technologies’ debt 896 Total consideration $ 2,391 The Company finalized its valuation of the assets and liabilities of the Delphi Technologies acquisition during the third quarter of 2021. During the nine months ended September 30, 2021, the Company made measurement period adjustments based on new information about facts and circumstances that existed as of the acquisition date. The following table summarizes the final fair values of assets acquired and liabilities assumed as of the acquisition date and subsequent measurement period adjustments: (in millions) Initial Allocation Measurement Period Adjustments Revised Allocation ASSETS Cash and cash equivalents $ 460 $ — $ 460 Receivables, net 901 (4) 897 Inventories, net 398 (5) 393 Prepayments and other current assets 77 2 79 Property, plant and equipment, net 1,548 (31) 1,517 Investments and other long-term receivables 103 (1) 102 Goodwill 710 44 754 Other intangible assets, net 760 — 760 Other non-current assets 359 1 360 Total assets acquired 5,316 6 5,322 LIABILITIES Notes payable and other short-term debt 2 — 2 Accounts payable 692 1 693 Other current liabilities 609 9 618 Long-term debt 934 — 934 Other non-current liabilities: Retirement-related 313 — 313 Other non-current liabilities 286 (4) 282 Total liabilities assumed 2,836 6 2,842 Noncontrolling interest 89 — 89 Net assets and noncontrolling interest acquired $ 2,391 $ — $ 2,391 Any excess of the purchase price over the fair value of net assets was recognized as goodwill. Goodwill of $754 million, including the impact of measurement period adjustments, was allocated across the Company’s four segments, as noted in the table below. The goodwill consists of the Company’s expected future economic benefits that will arise from expected future product sales and operational synergies from combining Delphi Technologies with its existing business and is not deductible for tax purposes. (in millions) Air Management $ 150 e-Propulsion & Drivetrain 301 Fuel Injection — Aftermarket 303 Total acquisition date goodwill $ 754 The following table summarizes the other intangible assets acquired: (in millions) Estimated Life Estimated Fair Value Amortized intangible assets: Developed technology 14 years $ 270 Customer relationships 15 years 380 Total amortized intangible assets 650 Unamortized trade name Indefinite 110 Total other intangible assets $ 760 Generally accepted valuation practice indicates that assets and liabilities may be valued using a range of methodologies. The property, plant and equipment and inventory acquired were valued using a combination of cost and market approaches. Goodwill, identifiable intangible assets, noncontrolling interests and the equity method investment were valued using the income approach. Management used a third-party valuation firm to assist in the determination of the preliminary purchase accounting fair values; however, management ultimately oversees the third-party valuation firm to ensure that the transaction-specific assumptions are appropriate. On a pro forma basis, the combined net sales of the Company and Delphi Technologies for the three and nine months ended September 30, 2020 were $3,588 million and $8,866 million, respectively. Romeo Power, Inc. In May 2019, the Company invested $50 million in exchange for a 20% equity interest in Romeo Systems, Inc., now known as Romeo Power, Inc., (“Romeo”) a technology-leading battery module and pack supplier that was then privately held. The Company accounted for this investment in Series A-1 Preferred Stock of Romeo under the measurement alternative in ASC Topic 321, “Investments - Equity Securities” for equity securities without a readily determinable fair value. Such investments are measured at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for an identical or similar investment of the same issuer. In September 2019, the Company and Romeo contributed total equity of $10 million and formed a new joint venture, BorgWarner Romeo Power LLC (“Romeo JV”), in which the Company owns a 60% interest. Romeo JV is a variable interest entity focusing on producing battery module and pack technology. The Company is the primary beneficiary of Romeo JV and consolidates Romeo JV in its consolidated financial statements. On December 29, 2020, through the business combination of Romeo Systems, Inc. and special purpose acquisition company RMG Acquisition Corporation, a new entity, Romeo Power, Inc., became a publicly listed company. The Company’s ownership in Romeo was reduced to 14%, and the investment no longer qualified for the measurement alternative under ASC Topic 321 as the investment now has a readily determinable fair value. Therefore, during the fourth quarter 2020, a gain of $391 million was recorded to adjust the carrying value of the Company’s investment to fair value of $432 million as of December 31, 2020. The investment is recorded at fair value on an ongoing basis with changes in fair value being recognized in Unrealized loss on equity securities in the Condensed Consolidated Statements of Operations. During the three and nine months ended September 30, 2021, the Company recorded a loss of $61 million and $337 million, respectively, to adjust the carrying value of the Company’s investment to fair value. As of September 30, 2021, the investment’s fair value was $95 million, which is reflected in Investments and other long-term receivables in the Company’s Condensed Consolidated Balance Sheets. Prior to December 29, 2020, there was not a readily determinable fair value of Romeo and the Company assessed it for any impairment indicators or other changes resulting from observable price changes in orderly transactions for an identical or similar investment of the same issuer. In the first quarter of 2020

REVENUE FROM CONTRACTS WITH CUS

REVENUE FROM CONTRACTS WITH CUSTOMERS	9 Months Ended
REVENUE FROM CONTRACTS WITH CUSTOMERS	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
REVENUE FROM CONTRACTS WITH CUSTOMERS	REVENUE FROM CONTRACTS WITH CUSTOMERS The Company manufactures and sells products, primarily to OEMs of light vehicles and, to a lesser extent, to other OEMs of commercial vehicles and off-highway vehicles, to certain Tier One vehicle systems suppliers and into the aftermarket. The Company’s payment terms are based on customary business practices and vary by customer type and products offered. We have evaluated the terms of our arrangements and determined that they do not contain significant financing components. Generally, revenue is recognized upon shipment or delivery; however, a limited number of the Company’s customer arrangements for its highly customized products with no alternative use provide the Company with the right to payment during the production process. As a result, for these limited arrangements, revenue is recognized as goods are produced and control transfers to the customer using the input cost-to-cost method. The Company recorded a contract asset of $21 million and $16 million at September 30, 2021 and December 31, 2020, respectively, for these arrangements. These amounts are reflected in Prepayments and other current assets in the Company’s Condensed Consolidated Balance Sheets. In limited instances, certain customers have provided payments in advance of receiving related products, typically at the onset of an arrangement prior to the beginning of production. These contract liabilities are reflected as Other current liabilities and Other non-current liabilities in the Condensed Consolidated Balance Sheets and were $23 million and $1 million at September 30, 2021 and $22 million and $6 million at December 31, 2020, respectively. These amounts are reflected as revenue over the term of the arrangement (typically 3 to 7 years) as the underlying products are shipped and represent the Company’s remaining performance obligations as of the end of the period. Sales to certain aftermarket customers provide to the customers a right of return. The Company recognizes an estimated return asset (and adjusts for cost of sales) for the right to recover the products returned by the customer. ASC Topic 606 requires that return assets be presented separately from inventory. As of September 30, 2021 and December 31, 2020, the Company had return assets of $9 million and $8 million, respectively, recorded in Prepayments and other current assets in the Company’s Condensed Consolidated Balance Sheets. The Company continually seeks business development opportunities and at times provides customer incentives for new program awards. When the Company determines that the payments are incremental and incurred only if the new business is obtained and expects to recover these amounts from the customer over the term of the new business arrangement, the Company capitalizes these amounts. As of September 30, 2021 and December 31, 2020, the Company recorded customer incentive payments of $38 million and $43 million, respectively, in Prepayments and other current assets, and $142 million and $166 million, respectively, in Other non-current assets in the Condensed Consolidated Balance Sheets. The following tables represent a disaggregation of revenue from contracts with customers by reporting segment and region and reflects the results of former Delphi Technologies entities in the three and nine months ended September 30, 2021. Refer to Note 23, “Reporting Segments And Related Information,” to the Condensed Consolidated Financial Statements for more information. Three Months Ended September 30, 2021 (In millions) Air Management e-Propulsion & Drivetrain Fuel Injection Aftermarket Total North America $ 460 $ 471 $ 13 $ 81 $ 1,025 Europe 647 183 201 114 1,145 Asia 483 524 144 16 1,167 Other 43 6 16 14 79 Total $ 1,633 $ 1,184 $ 374 $ 225 $ 3,416 Three Months Ended September 30, 2020 (In millions) Air Management e-Propulsion & Drivetrain Fuel Injection Aftermarket Total North America $ 384 $ 456 $ — $ — $ 840 Europe 658 186 — — 844 Asia 391 429 — — 820 Other 26 4 — — 30 Total $ 1,459 $ 1,075 $ — $ — $ 2,534 Nine Months Ended September 30, 2021 (In millions) Air Management e-Propulsion & Drivetrain Fuel Injection Aftermarket Total North America $ 1,456 $ 1,459 $ 17 $ 232 $ 3,164 Europe 2,265 710 731 324 4,030 Asia 1,586 1,710 428 46 3,770 Other 112 18 48 41 219 Total $ 5,419 $ 3,897 $ 1,224 $ 643 $ 11,183 Nine Months Ended September 30, 2020 (In millions) Air Management e-Propulsion & Drivetrain Fuel Injection Aftermarket Total North America $ 938 $ 1,069 $ — $ — $ 2,007 Europe 1,707 467 — — 2,174 Asia 988 995 — — 1,983 Other 64 11 — — 75 Total $ 3,697 $ 2,542 $ — $ — $ 6,239

RESTRUCTURING

RESTRUCTURING	9 Months Ended
RESTRUCTURING	Sep. 30, 2021
Restructuring and Related Activities [Abstract]
RESTRUCTURING	RESTRUCTURINGThe Company’s restructuring activities are undertaken, as necessary, to execute management’s strategy and streamline operations, consolidate and take advantage of available capacity and resources, and ultimately achieve net cost reductions. Restructuring activities include efforts to integrate and rationalize the Company’s business and to relocate operations to best cost locations. The Company’s restructuring expenses consist primarily of employee termination benefits (principally severance and/or termination benefits) and other costs, which are primarily professional fees and costs related to facility closures and exits. Three Months Ended September 30, 2021 (in millions Air Management e-Propulsion & Drivetrain Fuel Injection Corporate Total Employee termination benefits $ 7 $ 2 $ 29 $ — $ 38 Other 4 9 — — 13 Total restructuring expense $ 11 $ 11 $ 29 $ — $ 51 Three Months Ended September 30, 2020 Air Management e-Propulsion & Drivetrain Fuel Injection Corporate Total Employee termination benefits $ 9 $ — $ — $ 1 $ 10 Other 5 4 — 1 10 Total restructuring expense $ 14 $ 4 $ — $ 2 $ 20 Nine Months Ended September 30, 2021 Air Management e-Propulsion & Drivetrain Fuel Injection Corporate Total Employee termination benefits $ 30 $ 9 $ 56 $ — $ 95 Other 10 35 — 3 48 Total restructuring expense $ 40 $ 44 $ 56 $ 3 $ 143 Nine Months Ended September 30, 2020 Air Management e-Propulsion & Drivetrain Fuel Injection Corporate Total Employee termination benefits $ 31 $ 18 $ — $ 1 $ 50 Other 12 9 — 1 22 Total restructuring expense $ 43 $ 27 $ — $ 2 $ 72 The following tables display a rollforward of the restructuring liability recorded within the Company’s Condensed Consolidated Balance Sheets and the related cash flow activity: (in millions Employee Termination Benefits Other Total Balance at January 1, 2021 $ 160 $ 13 $ 173 Restructuring expense, net 95 48 143 Cash payments (107) (52) (159) Foreign currency translation adjustment 2 — 2 Balance at September 30, 2021 150 9 159 Less: Non-current restructuring liability 47 2 49 Current restructuring liability at September 30, 2021 $ 103 $ 7 $ 110 Employee Termination Benefits Other Total Balance at January 1, 2020 $ 34 $ — $ 34 Restructuring expense, net 50 22 72 Cash payments (40) (6) (46) Foreign currency translation adjustment and other — 2 2 Balance at September 30, 2020 44 18 62 Less: Non-current restructuring liability 16 3 19 Current restructuring liability at September 30, 2020 $ 28 $ 15 $ 43 In February 2020, the Company announced a restructuring plan to address existing structural costs. During the three and nine months ended September 30, 2021, the Company recorded $20 million and $81 million of restructuring charges related to this plan, respectively. During the three and nine months ended September 30, 2020, the Company recorded $20 million and $72 million of restructuring charges related to this plan, respectively. Cumulatively, the Company has incurred $229 million of restructuring charges related to this plan. This plan is expected to result in a total of $300 million of restructuring costs through 2022. Nearly all of the restructuring charges associated with this plan are expected to be cash expenditures. In 2019, legacy Delphi Technologies announced a restructuring plan to reshape and realign its global technical center footprint and reduce salaried and contract staff. The Company continued actions under this program post-acquisition and has recorded cumulative charges of $64 million since October 1, 2020, including approximately $62 million in restructuring charges during the nine months ended September 30, 2021. The majority of the actions under this program have been completed. The following provides details of restructuring expense incurred by the Company’s reporting segments during the three and nine months ended September 30, 2021 and 2020, related to the two plans discussed above: Air Management • During the three and nine months ended September 30, 2021, the segment recorded $10 million and $36 million of restructuring cost, respectively, primarily related to severance costs, professional fees and a voluntary termination program to reduce existing structural costs. • During the nine months ended September 30, 2021, the segment recorded $4 million primarily related to severance costs under the legacy Delphi Technologies plan. • During the three and nine months ended September 30, 2020, the segment recorded $14 million and $43 million of restructuring costs, respectively, of which $8 million and $21 million related to a voluntary termination program where approximately 350 employees accepted termination packages, and $7 million and $19 million related to severance costs and professional fees for specific actions to reduce structural costs. During the nine months ended September 30, 2020 2020, the segment also recorded $3 million of employee termination benefits related to the announced closure of a facility in Europe affecting approximately 200 employees. e-Propulsion & Drivetrain • During the three and nine months ended September 30, 2021, the segment recorded $7 million and $17 million, respectively, primarily related to severance costs, equipment relocation and professional fees to reduce existing structural costs. During the three and nine months ended September 30, 2021, the segment recorded $4 million and $27 million related to contractual settlements, professional fees and other costs associated with the announced closure of a facility in Europe. • During the three and nine months ended September 30, 2020, the segment recorded $3 million and $8 million, respectively, primarily related to professional fees for actions to reduce structural costs and severance costs. During the nine months ended September 30, 2020, the segment also recorded $19 million of employee termination benefits related to the announced closure of a facility in Europe affecting approximately 350 employees. Fuel Injection • During the three and nine months ended September 30, 2021, the segment recorded $29 million and $56 million, respectively, primarily for the statutory minimum benefits and incremental one-time termination benefits negotiated with local labor authorities related to the legacy Delphi Technologies restructuring plan. Estimates of restructuring expense are based on information available at the time such charges are recorded. Due to the inherent uncertainty involved in estimating restructuring expenses, actual amounts paid for such activities may differ from amounts initially recorded. Accordingly, the Company may record revisions of previous estimates by adjusting previously established accruals. The Company continues to evaluate different options across its operations to reduce existing structural costs over the next few years. The Company will recognize restructuring expense associated with any future actions at the time they are approved and become probable or are incurred. Any future actions could result in significant restructuring expense.

RESEARCH AND DEVELOPMENT COSTS

RESEARCH AND DEVELOPMENT COSTS	9 Months Ended
RESEARCH AND DEVELOPMENT COSTS	Sep. 30, 2021
Research and Development [Abstract]
RESEARCH AND DEVELOPMENT COSTS	RESEARCH AND DEVELOPMENT COSTS The Company’s net Research & Development (“R&D”) expenditures are included in selling, general and administrative expenses of the Condensed Consolidated Statements of Operations. Customer reimbursements are netted against gross R&D expenditures as they are considered a recovery of cost. Customer reimbursements for prototypes are recorded net of prototype costs based on customer contracts, typically either when the prototype is shipped or when it is accepted by the customer. Customer reimbursements for engineering services are recorded when performance obligations are satisfied in accordance with the contract. Financial risks and rewards transfer upon shipment, acceptance of a prototype component by the customer or upon completion of the performance obligation, as stated in the respective customer agreement. The Company has contracts with several customers relating to R&D activities that the Company performs at the Company’s various R&D locations. The following table presents the Company’s gross and net expenditures on R&D activities: Three Months Ended September 30, Nine Months Ended September 30, (in millions) 2021 2020 2021 2020 Gross R&D expenditures $ 231 $ 115 $ 675 $ 336 Customer reimbursements (47) (15) (142) (39) Net R&D expenditures $ 184 $ 100 $ 533 $ 297 During the three and nine months ended September 30, 2021, legacy Delphi Technologies had net R&D expenditures of $73 million and $205 million, respectively.

OTHER OPERATING EXPENSE, NET

OTHER OPERATING EXPENSE, NET	9 Months Ended
OTHER OPERATING EXPENSE, NET	Sep. 30, 2021
Other Income and Expenses [Abstract]
OTHER OPERATING EXPENSE, NET	OTHER OPERATING EXPENSE, NET Items included in Other operating expense, net consist of: Three Months Ended September 30, Nine Months Ended September 30, (in millions) 2021 2020 2021 2020 Restructuring expense (Note 5) $ 51 $ 20 $ 143 $ 72 Merger, acquisition and divestiture expense 8 16 36 58 Loss on sale — — 7 — Asset impairments — — — 17 Net gain on insurance recovery for property damage (1) (3) (3) (9) Other income, net (4) (4) (10) (5) Other operating expense, net $ 54 $ 29 $ 173 $ 133 Merger, acquisition and divestiture expense: During the three months ended September 30, 2021, the Company recorded merger, acquisition and divestiture expense of $8 million, primarily related to professional fees associated with the acquisition of AKASOL and the Company's review of strategic acquisition and divestiture targets. During the nine months ended September 30, 2021, the Company recorded merger, acquisition and divestiture expense of $36 million, primarily related to professional fees for integration and other support associated with the Company’s acquisition of Delphi Technologies and AKASOL. During the three and nine months ended September 30, 2020, the Company recorded merger, acquisition and divestiture expense of $16 million and $58 million, respectively, primarily related to professional fees associated with the Company’s acquisition of Delphi Technologies. Loss on sale: During the nine months ended September 30, 2021, the Company recorded a loss of $7 million in connection with the sale of an e-Propulsion & Drivetrain technical center in Europe. Asset impairments: During the nine months ended September 30, 2020, the Company recorded asset impairment costs of $9 million in the Air Management segment and $8 million in the e-Propulsion & Drivetrain segment, related to the write down of property, plant and equipment associated with the announced closures of two European facilities. Net gain on insurance recovery for property damage: During the nine months ended September 30, 2021 and 2020, the Company recorded a $3 million and $9 million net gain, respectively, from insurance recovery proceeds, which primarily represents the amount received for replacement cost in excess of carrying value for losses sustained from a tornado that damaged the Company’s plant in Seneca, South Carolina. As of September 30, 2021, the insurance claim has been fully settled.

INCOME TAXES

INCOME TAXES	9 Months Ended
INCOME TAXES	Sep. 30, 2021
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The Company’s provision for income taxes is based upon an estimated annual tax rate for the year applied to federal, state and foreign income. On a quarterly basis, the annual effective tax rate is adjusted, as appropriate, based upon changed facts and circumstances, if any, as compared to those forecasted at the beginning of the fiscal year and each interim period thereafter. The Company’s effective tax rate for the three months ended September 30, 2021 and 2020 was 40% and 53%, respectively. During the three-month period ended September 30, 2021, the Company’s effective tax rate was unfavorably impacted by $59 million of restructuring expenses and merger, acquisition and divestiture expenses, some of which, were non-deductible for tax purposes. As such, the Company recognized a de minimis tax benefit associated with these expenses in the three months ended September 30, 2021. The 2020 rate was unfavorably impacted by $51 million of additional income tax expense, primarily related to final U.S. Treasury regulations that were issued during the three months ended September 30, 2020. The Company’s effective tax rate for the nine months ended September 30, 2021 and 2020 was 24% and 51%, respectively. During the nine-month period ended September 30, 2021, unrecognized tax benefits and accrued interest were decreased for the lapse of the statute of limitations in a non-US jurisdiction for a tax holiday matter which, net of unrecognized foreign tax credits, resulted in a $55 million tax benefit. Additionally, an increase in the United Kingdom (“UK”) tax rate from 19% to 25% effective April 1, 2023 was enacted in June 2021 resulting in a discrete tax benefit of $20 million as a result of the revaluation of net deferred tax asset balances. Further, the Company’s effective tax rate includes a net discrete tax benefit of $33 million primarily related to changes to certain withholding rates applied to unremitted earnings. The effective tax rate was unfavorably impacted by $179 million of restructuring expenses and merger, acquisition and divestiture expenses, some of which, were non-deductible for tax purposes. The Company recognized $22 million of tax benefit associated with these expenses in the nine months ended September 30, 2021. For the nine months ended September 30, 2020, the effective tax rate was unfavorably impacted by $130 million of restructuring expenses and merger, acquisition and divestiture expenses, some of which, were largely non-deductible for tax purposes, resulting in only $23 million of tax benefit being recognized. This rate was further unfavorably impacted by $17 million of asset impairment charges for which no tax benefit was recognized as full valuation allowances were recorded against the corresponding deferred tax assets. The Company also recorded reductions in income tax expense of $10 million for other one-time adjustments primarily related to tax law changes in India that were enacted during the first three months of 2020 and the release of certain unrecognized tax benefits due to the closure of an audit. The annual effective tax rates differ from the U.S. statutory rate primarily due to foreign rates which vary from those in the U.S., jurisdictions with pretax losses for which no tax benefit could be realized, U.S. taxes on foreign earnings, the realization of certain business tax credits (including foreign tax credits), and permanent differences between book and tax treatment for certain items (including equity in affiliates’ earnings).

INVENTORIES, NET

INVENTORIES, NET	9 Months Ended
INVENTORIES, NET	Sep. 30, 2021
Inventory Disclosure [Abstract]
INVENTORIES, NET	INVENTORIES, NET A summary of Inventories, net is presented below: September 30, December 31, (in millions) 2021 2020 Raw material and supplies $ 1,082 $ 827 Work in progress 182 150 Finished goods 410 324 FIFO inventories 1,674 1,301 LIFO reserve (25) (15) Inventories, net $ 1,649 $ 1,286

OTHER CURRENT AND NON-CURRENT A

OTHER CURRENT AND NON-CURRENT ASSETS	9 Months Ended
OTHER CURRENT AND NON-CURRENT ASSETS	Sep. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
OTHER CURRENT AND NON-CURRENT ASSETS	OTHER CURRENT AND NON-CURRENT ASSETS Additional detail related to assets is presented below: September 30, December 31, (in millions) 2021 2020 Prepayments and other current assets: Prepaid tooling $ 91 $ 84 Prepaid taxes 44 64 Customer incentive payments (Note 4) 38 43 Prepaid engineering 29 33 Contract assets (Note 4) 21 16 Other 85 72 Total prepayments and other current assets $ 308 $ 312 Investments and other long-term receivables: Investment in equity affiliates $ 297 $ 297 Equity securities (Note 3) 150 472 Other long-term receivables 66 51 Total investments and other long-term receivables $ 513 $ 820 Other non-current assets: Deferred income taxes $ 282 $ 291 Operating leases 200 211 Customer incentive payments (Note 4) 142 166 Other 75 60 Total other non-current assets $ 699 $ 728

ASSETS AND LIABILITIES HELD FOR

ASSETS AND LIABILITIES HELD FOR SALE	9 Months Ended
ASSETS AND LIABILITIES HELD FOR SALE	Sep. 30, 2021
Discontinued Operations and Disposal Groups [Abstract]
ASSETS AND LIABILITIES HELD FOR SALE	ASSETS AND LIABILITIES HELD FOR SALE In 2021, the Company announced its strategy to aggressively grow its electrification portfolio over time through organic investments and technology-focused acquisitions. Additionally, the Company announced a plan to dispose of certain internal combustion assets in support of that strategy. As of September 30, 2021, the Company identified a business (disposal group) in its e-Propulsion & Drivetrain segment located in the Americas region that met the held for sale criteria. As such, assets of $105 million, including allocated goodwill of $18 million, and liabilities of $22 million were reclassified as held for sale on the Condensed Consolidated Balance Sheets as of September 30, 2021. The fair value of the assets and liabilities, less costs to sell, was determined to approximate the carrying value; therefore, the Company did not record any adjustment to the carrying value of the disposal group. The business did not meet the criteria to be classified as a discontinued operation. The assets and liabilities classified as held for sale as of September 30, 2021 consist of: September 30, (in millions) 2021 Assets held for sale: Receivables, net $ 28 Inventories, net 12 Prepayments and other current assets 1 Property, plant and equipment, net 46 Goodwill 18 Total assets held for sale $ 105 Liabilities held for sale: Accounts payable $ 15 Other current liabilities 7 Total liabilities held for sale $ 22

GOODWILL AND OTHER INTANGIBLES

GOODWILL AND OTHER INTANGIBLES	9 Months Ended
GOODWILL AND OTHER INTANGIBLES	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLES	GOODWILL AND OTHER INTANGIBLES During the fourth quarter of each year, the Company assesses its goodwill assigned to each of its reporting units. In addition, the Company may test goodwill in between annual test dates if an event occurs or circumstances change that could more-likely-than-not reduce the fair value of a reporting unit below its carrying value. No events or circumstances were noted in the first nine months of 2021 requiring additional assessment or testing. Future changes in the judgments, assumptions and estimates from those used in acquisition-related valuations and goodwill impairment testing, including discount rates or future operating results and related cash flow projections, could result in significantly different estimates of the fair values in the future. An increase in discount rates, a reduction in projected cash flows or a combination of the two could lead to a reduction in the estimated fair values, which may result in impairment charges that could materially affect the Company’s financial statements in any given year. A summary of the changes in the carrying amount of goodwill are as follows: (in millions) Air Management e-Propulsion & Drivetrain Aftermarket Total Gross goodwill balance, December 31, 2020 $ 1,517 $ 1,313 $ 299 $ 3,129 Accumulated impairment losses, December 31, 2020 (502) — — (502) Net goodwill balance, December 31, 2020 $ 1,015 $ 1,313 $ 299 $ 2,627 Goodwill during the period: Acquisition 707 — — 707 Measurement period adjustments (4) 28 16 40 Held for sale — (18) — (18) Other, primarily translation adjustment (36) (31) (4) (71) Ending balance, September 30, 2021 $ 1,682 $ 1,292 $ 311 $ 3,285 The Company’s other intangible assets, primarily from acquisitions, consist of the following: September 30, 2021 December 31, 2020 (in millions) Estimated useful lives (years) Gross Accumulated Net Gross Accumulated Net Amortized intangible assets: Patented and unpatented technology 5 - 15 $ 445 $ 97 $ 348 $ 383 $ 77 $ 306 Customer relationships 7 - 15 883 299 584 893 272 621 Miscellaneous 2 - 13 10 7 3 10 7 3 Total amortized intangible assets 1,338 403 935 1,286 356 930 Unamortized trade names 199 — 199 166 — 166 Total other intangible assets $ 1,537 $ 403 $ 1,134 $ 1,452 $ 356 $ 1,096

PRODUCT WARRANTY

PRODUCT WARRANTY	9 Months Ended
PRODUCT WARRANTY	Sep. 30, 2021
Product Warranties Disclosures [Abstract]
PRODUCT WARRANTY	PRODUCT WARRANTY The Company provides warranties on some, but not all, of its products. The warranty terms are typically from one The following table summarizes the activity in the product warranty accrual accounts: (in millions) 2021 2020 Beginning balance, January 1 $ 253 $ 116 Provisions for current period sales 69 36 Adjustments of prior estimates 17 14 Payments (90) (41) Other, primarily translation adjustment (2) 2 Ending balance, September 30 $ 247 $ 127 The product warranty liability is classified in the Condensed Consolidated Balance Sheets as follows: September 30, December 31, (in millions) 2021 2020 Other current liabilities $ 143 $ 164 Other non-current liabilities 104 89 Total product warranty liability $ 247 $ 253

NOTES PAYABLE AND DEBT

NOTES PAYABLE AND DEBT	9 Months Ended
NOTES PAYABLE AND DEBT	Sep. 30, 2021
Debt Disclosure [Abstract]
NOTES PAYABLE AND DEBT	NOTES PAYABLE AND DEBT As of September 30, 2021 and December 31, 2020, the Company had debt outstanding as follows: September 30, December 31, ( in millions ) 2021 2020 Short-term borrowings $ 44 $ 45 Long-term debt 1.800% Senior notes due 11/07/22 (€500 million par value) — 609 3.375% Senior notes due 03/15/25 ($500 million par value) 498 498 5.000% Senior notes due 03/15/25 ($800 million par value)* 895 912 2.650% Senior notes due 07/01/27 ($1,100 million par value) 1,090 1,088 7.125% Senior notes due 02/15/29 ($121 million par value) 119 119 1.000% Senior Notes due 05/19/31 (€1,000 million par value) 1,137 — 4.375% Senior notes due 03/15/45 ($500 million par value) 494 494 Term loan facilities, finance leases and other 65 22 Total long-term debt 4,298 3,742 Less: current portion 10 4 Long-term debt, net of current portion $ 4,288 $ 3,738 ________________ *Includes the fair value step-up from the Delphi Technologies acquisition, which was based on observable market data and will be amortized as a reduction to interest expense over the remaining life of the instrument using the effective interest method. The Company may utilize uncommitted lines of credit for short-term working capital requirements. As of September 30, 2021 and December 31, 2020, the Company had $44 million and $45 million, respectively, in borrowings under these facilities, which are classified in Notes payable and other short-term debt on the Condensed Consolidated Balance Sheets. On May 19, 2021, in anticipation of the acquisition of AKASOL and to refinance the Company's €500 million 1.800% senior notes due in November 2022, the Company issued €1.0 billion in 1.000% senior notes due May 2031. Interest is payable annually in arrears on May 19 of each year. These senior notes are not guaranteed by any of the Company’s subsidiaries. On June 18, 2021, the Company repaid its €500 million 1.800% senior notes due November 2022 and incurred a loss on debt extinguishment of $20 million, which is reflected in Interest expense in the Condensed Consolidated Statement of Operations. On February 19, 2021, the Company entered into a $900 million, 364-day delayed-draw term loan facility to satisfy certain cash confirmation requirements in support of the proposed acquisition of AKASOL. The facility was cancelled on May 19, 2021 in accordance with its terms, following the Company’s issuance of the €1.0 billion in senior notes. The Company has a $2.0 billion multi-currency revolving credit facility that allows the Company the ability to increase the facility by $1.0 billion with bank group approval. The credit agreement contains customary events of default and one key financial covenant, which is a debt-to-EBITDA (Earnings Before Interest, Taxes, Depreciation and Amortization) ratio. The Company was in compliance with the financial covenant at September 30, 2021. At September 30, 2021 and December 31, 2020, the Company had no outstanding borrowings under this facility. The Company’s commercial paper program allows the Company to issue up to $2.0 billion of short-term, unsecured commercial paper notes under the limits of its multi-currency revolving credit facility. Under this program, the Company may issue notes from time to time and use the proceeds for general corporate purposes. The Company had no outstanding borrowings under this program as of September 30, 2021 and December 31, 2020. The total current combined borrowing capacity under the multi-currency revolving credit facility and commercial paper program cannot exceed $2 billion. As of September 30, 2021 and December 31, 2020, the estimated fair values of the Company’s senior unsecured notes totaled $4,510 million and $4,052 million, respectively. The estimated fair values were $277 million higher than their carrying value at September 30, 2021 and $332 million higher than their carrying value at December 31, 2020. Fair market values of the senior unsecured notes are developed using observable values for similar debt instruments, which are considered Level 2 inputs as defined by ASC Topic 820. The carrying values of the Company's multi-currency revolving credit facility and commercial paper program approximate fair value. The fair value estimates do not necessarily reflect the values the Company could realize in the current markets. The Company had outstanding letters of credit of $35 million and $33 million at September 30, 2021 and December 31, 2020, respectively. The letters of credit typically act as guarantees of payment to certain third parties in accordance with specified terms and conditions.

OTHER CURRENT AND NON-CURRENT L

OTHER CURRENT AND NON-CURRENT LIABILITIES	9 Months Ended
OTHER CURRENT AND NON-CURRENT LIABILITIES	Sep. 30, 2021
Other Liabilities Disclosure [Abstract]
OTHER CURRENT AND NON-CURRENT LIABILITIES	OTHER CURRENT AND NON-CURRENT LIABILITIES Additional detail related to liabilities is presented in the table below: September 30, December 31, ( in millions ) 2021 2020 Other current liabilities: Payroll and employee related $ 321 $ 301 Customer related 247 198 Product warranties (Note 13) 143 164 Employee termination benefits (Note 5) 103 101 Income taxes payable 99 102 Indirect taxes 59 69 Accrued freight 52 41 Operating leases 48 47 Interest 31 18 Contract liabilities (Note 4) 23 22 Dividends payable 20 6 Insurance 19 20 Retirement related 16 16 Other 249 304 Total other current liabilities $ 1,430 $ 1,409 Other non-current liabilities: Other income tax liabilities $ 254 $ 300 Deferred income taxes 240 276 Operating leases 159 172 Product warranties (Note 13) 104 89 Derivative instruments 78 162 Deferred income 65 55 Employee termination benefits (Note 5) 47 59 Other 81 68 Total other non-current liabilities $ 1,028 $ 1,181

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	9 Months Ended
FAIR VALUE MEASUREMENTS	Sep. 30, 2021
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS ASC Topic 820 emphasizes that fair value is a market-based measurement, not an entity-specific measurement. Therefore, a fair value measurement should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering market participant assumptions in fair value measurements, ASC Topic 820 establishes a fair value hierarchy, which prioritizes the inputs used in measuring fair values as follows: Level 1: Observable inputs such as quoted prices for identical assets or liabilities in active markets; Level 2: Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and Level 3: Unobservable inputs for which there is little or no market data, which require the reporting entity to develop its own assumptions. Assets and liabilities measured at fair value are based on one or more of the following three valuation techniques noted in ASC Topic 820: A. Market approach: Prices and other relevant information generated by market transactions involving identical or comparable assets, liabilities or a group of assets or liabilities, such as a business. B. Cost approach: Amount that would be required to replace the service capacity of an asset (replacement cost). C. Income approach: Techniques to convert future amounts to a single present amount based upon market expectations (including present value techniques, option-pricing and excess earnings models). The following tables classify assets and liabilities measured at fair value on a recurring basis as of September 30, 2021 and December 31, 2020: Basis of fair value measurements (in millions) Balance at September 30, 2021 Quoted prices in active markets for identical items Significant other observable inputs Significant unobservable inputs Valuation technique Assets: Investment in equity securities $ 95 $ 95 $ — $ — A Foreign currency contracts $ 15 $ — $ 15 $ — A Net investment hedge contracts $ 6 $ — $ 6 $ — A Liabilities: Foreign currency contracts $ 9 $ — $ 9 $ — A Net investment hedge contracts $ 77 $ — $ 77 $ — A Basis of fair value measurements (in millions) Balance at Quoted prices in active markets for identical items Significant other observable inputs Significant unobservable inputs Valuation Assets: Investment in equity securities $ 432 $ 432 $ — $ — A Foreign currency contracts $ 5 $ — $ 5 $ — A Liabilities: Foreign currency contracts $ 6 $ — $ 6 $ — A Net investment hedge contracts $ 161 $ — $ 161 $ — A

FINANCIAL INSTRUMENTS

FINANCIAL INSTRUMENTS	9 Months Ended
FINANCIAL INSTRUMENTS	Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
FINANCIAL INSTRUMENTS	FINANCIAL INSTRUMENTS The Company’s financial instruments include cash and cash equivalents, marketable securities and accounts receivable. Due to the short-term nature of these instruments, their book value approximates their fair value. The Company’s financial instruments may also include long-term debt, investments in equity securities, interest rate and cross-currency swaps, commodity derivative contracts and foreign currency derivative contracts. All derivative contracts are placed with counterparties that have an S&P, or equivalent, investment grade credit rating at the time of the contracts’ placement. At September 30, 2021 and December 31, 2020, the Company had no derivative contracts that contained credit risk-related contingent features. The Company, at times, uses certain commodity derivative contracts to protect against commodity price changes related to forecasted raw material and component purchases. At September 30, 2021 and December 31, 2020, the Company had no material commodity derivative contracts. The Company primarily utilizes forward and option contracts, which are designated as cash flow hedges. The Company manages its interest rate risk by balancing its exposure to fixed and variable rates while attempting to optimize its interest costs. The Company, at times, selectively uses interest rate swaps and options to reduce market value risk associated with changes in interest rates (fair value hedges and cash flow hedges). At September 30, 2021 and December 31, 2020, the Company had no outstanding interest rate swaps or options. The Company uses foreign currency forward and option contracts to protect against exchange rate movements for forecasted cash flows, including capital expenditures, purchases, operating expenses or sales transactions designated in currencies other than the functional currency of the operating unit. In addition, the Company uses foreign currency forward contracts to hedge exposure associated with its net investment in certain foreign operations (net investment hedges). Foreign currency derivative contracts require the Company, at a future date, to either buy or sell foreign currency in exchange for the operating units’ local currency. At September 30, 2021 and December 31, 2020, the following foreign currency derivative contracts were outstanding: Foreign currency derivatives (in millions)* Functional Currency Traded Currency Notional in traded currency Notional in traded currency Ending Duration British pound Euro 80 97 Dec - 22 Chinese renminbi US dollar 51 113 Dec - 22 Chinese renminbi Euro 14 — Dec - 21 Euro Polish zloty 199 147 Dec - 22 Euro US dollar 49 41 Dec - 22 Korean won US dollar 12 19 Dec - 21 US dollar British pound 10 — Dec - 22 US dollar Euro 113 55 Nov - 21 US dollar Korean won 75,014 15,000 Dec - 22 US dollar Singapore dollar 37 47 Dec - 22 US dollar Thailand baht 1,720 — May - 22 US dollar Mexican peso 1,251 1,178 Dec - 22 *Table above excludes non-significant traded currency pairings with total notional amounts less than $10 million U.S. dollar equivalent as of September 30, 2021 and December 31, 2020. The Company selectively uses cross-currency swaps to hedge the foreign currency exposure associated with its net investment in certain foreign operations (net investment hedges). At September 30, 2021 and December 31, 2020, the following cross-currency swap contracts were outstanding: Cross-currency swaps (millions of dollars) September 30, 2021 December 31, 2020 Ending duration US dollar to Euro: Fixed receiving notional $ 500 $ 500 Mar - 25 Fixed paying notional € 450 € 450 Mar - 25 US dollar to Euro: Fixed receiving notional $ 1,100 $ 1,100 Jul - 27 Fixed paying notional € 976 € 976 Jul - 27 US dollar to Japanese yen: Fixed receiving notional $ 100 $ 100 Feb - 23 Fixed paying notional ¥ 10,978 ¥ 10,978 Feb - 23 At September 30, 2021 and December 31, 2020, the following amounts were recorded in the Condensed Consolidated Balance Sheets as being payable to or receivable from counterparties under ASC Topic 815: (in millions) Assets Liabilities Derivatives designated as hedging instruments Under 815: Location September 30, 2021 December 31, 2020 Location September 30, 2021 December 31, 2020 Foreign currency Prepayments and other current assets $ 5 $ 1 Other current liabilities $ 8 $ 4 Foreign currency Other non-current assets $ — $ — Other non-current liabilities $ 1 $ 1 Net investment hedges Other non-current assets $ 6 $ — Other non-current liabilities $ 77 $ 161 Derivatives not designated as hedging instruments: Foreign currency Prepayments and other current assets $ 8 $ 4 Other current liabilities $ — $ 1 Foreign currency Other non-current assets $ 2 $ — Other non-current liabilities $ — $ — Effectiveness for cash flow hedges is assessed at the inception of the hedging relationship and quarterly, thereafter. Gains and losses arising from these contracts that are included in the assessment of effectiveness are deferred into accumulated other comprehensive loss (“AOCI”) and reclassified into income as the underlying operating transactions are recognized. These realized gains or losses offset the hedged transaction and are recorded on the same line in the statement of operations. The initial value of any component excluded from the assessment of effectiveness will be recognized in income using a systematic and rational method over the life of the hedging instrument. Any difference between the change in fair value of the excluded component and amounts recognized in income under that systematic and rational method will be recognized in AOCI. Effectiveness for net investment hedges is assessed at the inception of the hedging relationship and quarterly, thereafter. Gains and losses arising from these contracts that are included in the assessment of effectiveness are deferred into foreign currency translation adjustments and only released when the subsidiary being hedged is sold or substantially liquidated. The initial value of any component excluded from the assessment of effectiveness will be recognized in income using a systematic and rational method over the life of the hedging instrument. Any difference between the change in fair value of the excluded component and amounts recognized in income under that systematic and rational method will be recognized in AOCI. During the nine months ended September 30, 2021, the Company repaid its €500 million 1.800% senior notes due November 2022, which was designated as a net investment hedge resulting in a deferred loss of $50 million that will remain in accumulated other comprehensive loss until the net investment is sold, completely liquidated or substantially liquidated. The Company has designated the €1.0 billion in 1.000% senior notes due May 2031, issued in May 2021, as a net investment hedge of the Company’s investment in its European subsidiaries. The table below shows deferred gains (losses) reported in AOCI as well as the amount expected to be reclassified to income in one year or less for designated net investment hedges. The amount expected to be reclassified to income in one year or less assumes no change in the current relationship of the hedged item at September 30, 2021 market rates. (in millions) Deferred gain (loss) in AOCI at Gain (loss) expected to be reclassified to income in one year or less Contract Type September 30, 2021 December 31, 2020 Net investment hedges: Foreign currency $ (7) $ (1) $ — Cross-currency swaps (71) (161) — Foreign currency-denominated debt 46 (68) — Total $ (32) $ (230) $ — Derivative instruments designated as hedging instruments as defined by ASC Topic 815 held during the period resulted in the following gains and losses recorded in income: Three Months Ended September 30, 2021 (in millions) Net sales Cost of sales Selling, general and administrative expenses Other comprehensive income (loss) Total amounts of earnings and other comprehensive income(loss) line items in which the effects of cash flow hedges are recorded $ 3,416 $ 2,766 $ 343 $ (73) Gain (loss) on cash flow hedging relationships: Foreign currency: Gain (loss) recognized in other comprehensive income $ (2) Gain (loss) reclassified from AOCI to income $ — $ (1) $ — Nine Months Ended September 30, 2021 (in millions) Net sales Cost of sales Selling, general and administrative expenses Other comprehensive income (loss) Total amounts of earnings and other comprehensive income(loss) line items in which the effects of cash flow hedges are recorded 11,183 8,953 1,084 $ (95) Gain (loss) on cash flow hedging relationships: Foreign currency: Gain (loss) recognized in other comprehensive income $ (5) Gain (loss) reclassified from AOCI to income $ — $ (2) $ — Three Months Ended September 30, 2020 (in millions) Net sales Cost of sales Selling, general and administrative expenses Other comprehensive income (loss) Total amounts of earnings and other comprehensive income(loss) line items in which the effects of cash flow hedges are recorded $ 2,534 $ 2,017 $ 204 $ 57 Gain (loss) on cash flow hedging relationships: Foreign currency: Gain (loss) recognized in other comprehensive income $ 1 Gain (loss) reclassified from AOCI to income $ — $ — $ — Nine Months Ended September 30, 2020 (in millions) Net sales Cost of sales Selling, general and administrative expenses Other comprehensive income (loss) Total amounts of earnings and other comprehensive income(loss) line items in which the effects of cash flow hedges are recorded $ 6,239 $ 5,101 $ 601 $ (3) Gain (loss) on cash flow hedging relationships: Foreign currency: Gain (loss) recognized in other comprehensive income $ (1) Gain (loss) reclassified from AOCI to income $ — $ — $ (1) The gains or losses recorded in income related to components excluded from the assessment of effectiveness for derivative instruments designated as cash flow hedges were immaterial for the periods presented. Gains and (losses) on derivative instruments designated as net investment hedges were recognized in other comprehensive income (loss) during the periods presented below. (in millions) Three Months Ended September 30, Nine Months Ended September 30, Net investment hedges 2021 2020 2021 2020 Foreign currency $ — $ — $ (6) $ 1 Cross-currency swaps $ 43 $ (89) $ 90 $ (71) Foreign currency-denominated debt $ 27 $ (24) $ 64 $ (26) Derivatives designated as net investment hedge instruments, as defined by ASC Topic 815, held during the period resulted in the following gains recorded in Interest expense on components excluded from the assessment of effectiveness: (in millions) Three Months Ended September 30, Nine Months Ended September 30, Net investment hedges 2021 2020 2021 2020 Cross-currency swaps $ 6 $ 6 $ 16 $ 13 There were no gains or losses recorded in income related to components excluded from the assessment of effectiveness for foreign currency-denominated debt designated as net investment hedges. There were no gains and losses reclassified from AOCI for net investment hedges during the periods presented. Derivatives not designated as hedging instruments are used to hedge remeasurement exposures of monetary assets and liabilities denominated in currencies other than the operating units' functional currency. These derivatives resulted in the following gains recorded in income: (in millions) Three Months Ended September 30, Nine Months Ended September 30, Contract Type Location 2021 2020 2021 2020 Foreign Currency Selling, general and administrative expenses $ 6 $ (1) $ 11 $ 2

RETIREMENT BENEFIT PLANS

RETIREMENT BENEFIT PLANS	9 Months Ended
RETIREMENT BENEFIT PLANS	Sep. 30, 2021
Retirement Benefits [Abstract]
RETIREMENT BENEFIT PLANS	RETIREMENT BENEFIT PLANS The Company has a number of defined benefit pension plans and other postretirement benefit plans covering eligible salaried and hourly employees and their dependents. The estimated contributions to the Company's defined benefit pension plans for 2021 range from $15 million to $25 million, of which $15 million has been contributed through the first nine months of the year. The other postretirement benefit plans, which provide medical and life insurance benefits, are funded on a pay-as-you-go basis. The components of net periodic benefit (income) cost recorded in the Condensed Consolidated Statements of Operations are as follows: Pension benefits Other postretirement (in millions) 2021 2020 Three Months Ended September 30, US Non-US US Non-US 2021 2020 Service cost $ — $ 6 $ — $ 5 $ — $ — Interest cost 1 8 1 2 — — Expected return on plan assets (2) (20) (2) (6) — — Amortization of unrecognized prior service credit (1) — (1) — (1) (1) Amortization of unrecognized loss 2 3 1 3 — 1 Net periodic benefit (income) cost $ — $ (3) $ (1) $ 4 $ (1) $ — Pension benefits Other postretirement (in millions) 2021 2020 Nine Months Ended September 30, US Non-US US Non-US 2021 2020 Service cost $ — $ 19 $ — $ 15 $ — $ — Interest cost 2 23 4 7 — 1 Expected return on plan assets (7) (62) (7) (18) — — Amortization of unrecognized prior service credit (1) — (1) — (2) (2) Amortization of unrecognized loss 3 10 2 8 1 1 Net periodic benefit (income) cost $ (3) $ (10) $ (2) $ 12 $ (1) $ — The components of net periodic benefit (income) cost other than the service cost component are included in Other postretirement income in the Condensed Consolidated Statements of Operations.

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	9 Months Ended
STOCKHOLDERS' EQUITY	Sep. 30, 2021
Stockholders' Equity Note [Abstract]
STOCKHOLDERS' EQUITY	STOCKHOLDERS' EQUITY The changes of the Stockholders’ Equity items during the three and nine months ended September 30, 2021 and 2020, are as follows: BorgWarner Inc. stockholders' equity (in millions) Issued common stock Capital in excess of par value Treasury stock Retained earnings Accumulated other comprehensive income (loss) Noncontrolling interests Balance, June 30, 2021 $ 3 $ 2,602 $ (1,810) $ 6,527 $ (673) $ 373 Dividends declared ($0.17 per share) — — — (41) — (14) Net issuance for executive stock plan — 6 — — — — Net issuance of restricted stock — 9 — — — — Net earnings — — — 96 — 21 Other comprehensive loss — — — — (73) (6) Balance, September 30, 2021 $ 3 $ 2,617 $ (1,810) $ 6,582 $ (746) $ 374 BorgWarner Inc. stockholders' equity (in millions) Issued common stock Capital in excess of par value Treasury stock Retained earnings Accumulated other comprehensive income (loss) Noncontrolling interests Balance, June 30, 2020 $ 3 $ 1,115 $ (1,623) $ 5,903 $ (787) $ 152 Dividends declared ($0.17 per share) — — — (35) — (15) Net issuance for executive stock plan — 5 — — — — Net issuance of restricted stock — 8 — — — — Net earnings — — — 111 — 18 Other comprehensive income — — — — 57 6 Balance, September 30, 2020 $ 3 $ 1,128 $ (1,623) $ 5,979 $ (730) $ 161 BorgWarner Inc. stockholders' equity (in millions) Issued common stock Capital in excess of par value Treasury stock Retained earnings Accumulated other comprehensive income (loss) Noncontrolling interests Balance, December 31, 2020 $ 3 $ 2,614 $ (1,834) $ 6,296 $ (651) $ 296 Dividends declared ($0.51 per share) — — — (122) — (51) Net issuance for executive stock plan — 7 3 — — — Net issuance of restricted stock — (4) 21 — — — Acquisition of AKASOL — — — — — 96 Purchase of noncontrolling interest — — — — — (33) Net earnings — — — 408 — 77 Other comprehensive loss — — — — (95) (11) Balance, September 30, 2021 $ 3 $ 2,617 $ (1,810) $ 6,582 $ (746) $ 374 BorgWarner Inc. stockholders' equity (in millions) Issued common stock Capital in excess of par value Treasury stock Retained earnings Accumulated other comprehensive income (loss) Noncontrolling interests Balance, December 31, 2019 $ 3 $ 1,145 $ (1,657) $ 5,942 $ (727) $ 138 Dividends declared ($0.51 per share) — — — (105) — (20) Net issuance for executive stock plan — (11) 12 — — — Net issuance of restricted stock — (6) 22 — — — Net earnings — — — 142 — 40 Other comprehensive (loss) income — — — — (3) 3 Balance, September 30, 2020 $ 3 $ 1,128 $ (1,623) $ 5,979 $ (730) $ 161 __________________________________ * The dividends declared relate to BorgWarner common stock.

ACCUMULATED OTHER COMPREHENSIVE

ACCUMULATED OTHER COMPREHENSIVE LOSS	9 Months Ended
ACCUMULATED OTHER COMPREHENSIVE LOSS	Sep. 30, 2021
Equity [Abstract]
ACCUMULATED OTHER COMPREHENSIVE LOSS	ACCUMULATED OTHER COMPREHENSIVE LOSS The following tables summarize the activity within accumulated other comprehensive loss during the three and nine months ended September 30, 2021 and 2020: (in millions) Foreign currency translation adjustments Hedge instruments Defined benefit retirement plans Total Beginning balance, June 30, 2021 $ (351) $ (2) $ (320) $ (673) Comprehensive (loss) income before reclassifications (55) (2) 8 (49) Income taxes associated with comprehensive (loss) income before reclassifications (26) — (1) (27) Reclassification from accumulated other comprehensive loss — 1 2 3 Income taxes reclassified into net earnings — — — — Ending balance, September 30, 2021 $ (432) $ (3) $ (311) $ (746) (in millions) Foreign currency translation adjustments Hedge instruments Defined benefit retirement plans Total Beginning balance, June 30, 2020 $ (557) $ (1) $ (229) $ (787) Comprehensive (loss) income before reclassifications 25 1 7 33 Income taxes associated with comprehensive (loss) income before reclassifications 24 — 2 26 Reclassification from accumulated other comprehensive loss — — (3) (3) Income taxes reclassified into net earnings — — 1 1 Ending balance, September 30, 2020 $ (508) $ — $ (222) $ (730) (in millions) Foreign currency translation adjustments Hedge instruments Defined benefit retirement plans Total Balance, December 31, 2020 $ (321) $ — $ (330) $ (651) Comprehensive (loss) income before reclassifications (68) (5) 11 (62) Income taxes associated with comprehensive (loss) income before reclassifications (43) — — (43) Reclassification from accumulated other comprehensive loss — 2 10 12 Income taxes reclassified into net earnings — — (2) (2) Ending balance, September 30, 2021 $ (432) $ (3) $ (311) $ (746) (in millions) Foreign currency translation adjustments Hedge instruments Defined benefit retirement plans Total Balance, December 31, 2019 $ (497) $ — $ (230) $ (727) Comprehensive (loss) income before reclassifications (31) (1) 13 (19) Income taxes associated with comprehensive (loss) income before reclassifications 20 — 1 21 Reclassification from accumulated other comprehensive loss — 1 (8) (7) Income taxes reclassified into net earnings — — 2 2 Ending balance, September 30, 2020 $ (508) $ — $ (222) $ (730)

CONTINGENCIES

CONTINGENCIES	9 Months Ended
CONTINGENCIES	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
CONTINGENCIES	CONTINGENCIES In the normal course of business, the Company is party to various commercial and legal claims, actions and complaints, including matters involving warranty claims, intellectual property claims, general liability and other risks. It is not possible to predict with certainty whether or not the Company will ultimately be successful in any of these commercial and legal matters or, if not, what the impact might be. The Company’s management does not expect that an adverse outcome in any of these commercial and legal claims, actions and complaints that are currently pending will have a material adverse effect on the Company’s results of operations, financial position or cash flows. An adverse outcome could nonetheless be material to the results of operations or cash flows. There is a warranty claim that an OEM customer has asserted for which the Company has recorded an accrual of $10 million representing its best estimate of probable loss at September 30, 2021. However, the Company is working through the warranty claim process with the customer, and much remains uncertain regarding the Company’s liability for the claim. Facts may become known that may result in additional losses relating to this matter that could be material to the Company’s results of operations or cash flows. Environmental The Company and certain of its current and former direct and indirect corporate predecessors, subsidiaries and divisions have been identified by the United States Environmental Protection Agency and certain state environmental agencies and private parties as potentially responsible parties (“PRPs”) at various hazardous waste disposal sites under the Comprehensive Environmental Response, Compensation and Liability Act (“Superfund”) and equivalent state laws and, as such, may presently be liable for the cost of clean-up and other remedial activities at 26 such sites as of September 30, 2021 and December 31, 2020. Responsibility for clean-up and other remedial activities at a Superfund site is typically shared among PRPs based on an allocation formula. The Company believes that none of these matters, individually or in the aggregate, will have a material adverse effect on its results of operations, financial position or cash flows. Generally, this is because either the estimates of the maximum potential liability at a site are not material or the liability will be shared with other PRPs, although no assurance can be given with respect to the ultimate outcome of any such matter. The Company had an accrual for environmental liabilities of $6 million and $7 million as of September 30, 2021 and December 31, 2020, respectively, included in Other current and Other non-current liabilities in the Condensed Consolidated Balance Sheets. This accrual is based on information available to the Company (which, in most cases, includes an estimate of allocation of liability among PRPs; the probability that other PRPs, many of whom are large, solvent public companies, will fully pay the cost apportioned to them; currently available information from PRPs and/or federal or state environmental agencies concerning the scope of contamination and estimated remediation and consulting costs; and remediation alternatives).

EARNINGS PER SHARE

EARNINGS PER SHARE	9 Months Ended
EARNINGS PER SHARE	Sep. 30, 2021
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHAREThe Company presents both basic and diluted earnings per share of common stock (“EPS”) amounts. Basic EPS is calculated by dividing net earnings attributable to BorgWarner Inc. by the weighted average shares of common stock outstanding during the reporting period. Diluted EPS is calculated by dividing net earnings attributable to BorgWarner Inc. by the weighted average shares of common stock and common stock equivalents outstanding during the reporting period. The dilutive impact of stock-based compensation is calculated using the treasury stock method. The treasury stock method assumes that the Company uses the assumed proceeds from the exercise of awards to repurchase common stock at the average market price during the period. The assumed proceeds under the treasury stock method include the purchase price that the grantee will pay in the future and compensation cost for future service that the Company has not yet recognized. The dilutive effects of performance-based stock awards are included in the computation of diluted earnings per share at the level the related performance criteria are met through the respective balance sheet date. There were 647,057 and 113,532 performance share units excluded from the computation of the diluted earnings for the three months ended September 30, 2021 and 2020, respectively. There were 783,799 and 113,532 performance share units excluded from the computation of the diluted earnings per share for the nine months ended September 30, 2021 and 2020, respectively. These units were excluded, because the related performance criteria had not been met as of the balance sheet date. The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share of common stock: Three Months Ended September 30, Nine Months Ended September 30, (in millions, except per share amounts) 2021 2020 2021 2020 Basic earnings per share: Net earnings attributable to BorgWarner Inc. $ 96 $ 111 $ 408 $ 142 Weighted average shares of common stock outstanding 238.2 206.0 238.0 205.9 Basic earnings per share of common stock $ 0.40 $ 0.54 $ 1.71 $ 0.69 Diluted earnings per share: Net earnings attributable to BorgWarner Inc. $ 96 $ 111 $ 408 $ 142 Weighted average shares of common stock outstanding 238.2 206.0 238.0 205.9 Effect of stock-based compensation 1.6 1.3 1.3 0.8 Weighted average shares of common stock outstanding including dilutive shares 239.8 207.3 239.3 206.7 Diluted earnings per share of common stock $ 0.40 $ 0.53 $ 1.70 $ 0.69 Anti-dilutive stock-based awards excluded from the calculation of diluted earnings per share: — — — —

REPORTING SEGMENTS AND RELATED

REPORTING SEGMENTS AND RELATED INFORMATION	9 Months Ended
REPORTING SEGMENTS AND RELATED INFORMATION	Sep. 30, 2021
Segment Reporting [Abstract]
REPORTING SEGMENTS AND RELATED INFORMATION	REPORTING SEGMENTS AND RELATED INFORMATION The Company’s business is comprised of four reporting segments: Air Management, e-Propulsion & Drivetrain, Fuel Injection and Aftermarket. These segments are strategic business groups that are managed separately as each represents a specific grouping of related automotive components and systems. The Company allocates resources to each segment based upon the projected after-tax return on invested capital (“ROIC”) of its business initiatives. ROIC is comprised of Segment Adjusted EBIT after deducting notional taxes compared to the projected average capital investment required. Segment Adjusted EBIT is comprised of earnings before interest, income taxes and noncontrolling interest (“EBIT”) adjusted for restructuring, merger, acquisition and divestiture expense, impairment charges, affiliates’ earnings and other items not reflective of ongoing operating income or loss. Segment Adjusted EBIT is the measure of segment income or loss used by the Company. The Company believes Segment Adjusted EBIT is most reflective of the operational profitability or loss of our reporting segments. The following tables show segment information and Segment Adjusted EBIT for the Company’s reporting segments: Net Sales by Reporting Segment Three Months Ended September 30, Nine Months Ended September 30, (in millions) 2021 2020 2021 2020 Air Management $ 1,671 $ 1,476 $ 5,536 $ 3,736 e-Propulsion & Drivetrain 1,223 1,075 4,026 2,542 Fuel Injection 420 — 1,375 — Aftermarket 227 — 650 — Inter-segment eliminations (125) (17) (404) (39) Net sales $ 3,416 $ 2,534 $ 11,183 $ 6,239 Segment Adjusted EBIT Three Months Ended September 30, Nine Months Ended September 30, (in millions) 2021 2020 2021 2020 Air Management $ 214 $ 225 $ 813 $ 461 e-Propulsion & Drivetrain 85 131 354 195 Fuel Injection 37 — 108 — Aftermarket 29 — 82 — Segment Adjusted EBIT 365 356 1,357 656 Corporate, including stock-based compensation 54 39 201 114 Restructuring expense 51 20 143 72 Merger, acquisition and divestiture expense 8 16 36 58 Loss on sale — — 7 — Asset impairments — — — 17 Net gain on insurance recovery for property damage (1) (3) (3) (9) Equity in affiliates’ earnings, net of tax (12) (3) (40) (10) Unrealized loss on equity securities 61 — 337 9 Interest income (3) (3) (9) (8) Interest expense 21 20 84 50 Other postretirement income (10) (2) (33) (5) Earnings before income taxes and noncontrolling interest 196 272 634 368 Provision for income taxes 79 143 149 186 Net earnings 117 129 $ 485 $ 182 Net earnings attributable to noncontrolling interest, net of tax 21 18 77 40 Net earnings attributable to BorgWarner Inc. $ 96 $ 111 $ 408 $ 142

OPERATING CASH FLOWS AND OTHER

OPERATING CASH FLOWS AND OTHER SUPPLEMENTAL FINANCIAL INFORMATION	9 Months Ended
	Sep. 30, 2021
Supplemental Cash Flow Elements [Abstract]
OPERATING CASH FLOWS AND OTHER SUPPLEMENTAL FINANCIAL INFORMATION	OPERATING CASH FLOWS AND OTHER SUPPLEMENTAL FINANCIAL INFORMATION Nine Months Ended September 30, (in millions) 2021 2020 OPERATING Net earnings $ 485 $ 182 Adjustments to reconcile net earnings to net cash flows from operations: Depreciation and amortization 585 339 Restructuring expense, net of cash paid 118 49 Stock-based compensation expense 42 29 Loss on sale 7 — Loss on debt extinguishment 20 — Asset impairments — 17 Deferred income tax (benefit) provision (101) 56 Unrealized loss on equity securities 337 9 Gain on insurance recovery received for property damages (5) (9) Other non-cash adjustments (18) (1) Net earnings adjustments to reconcile to net cash flows from operations 1,470 671 Retirement plan contributions (15) (15) Changes in assets and liabilities, excluding effects of acquisitions, divestitures and foreign currency translation adjustments: Receivables (45) (25) Inventories (382) 3 Prepayments and other current assets (7) (4) Accounts payable and accrued expenses (231) 153 Prepaid taxes and income taxes payable 21 (2) Other assets and liabilities (47) 27 Net cash provided by operating activities $ 764 $ 808 SUPPLEMENTAL CASH FLOW INFORMATION Cash paid during the period for: Interest, net $ 93 $ 53 Income taxes, net of refunds $ 271 $ 110 Balance as of: Non-cash investing transactions: September 30, December 31, Period end accounts payable related to property, plant and equipment purchases $ 105 $ 182

BASIS OF PRESENTATION (Policies

BASIS OF PRESENTATION (Policies)	9 Months Ended
BASIS OF PRESENTATION (Policies)	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Accounting	The accompanying unaudited Condensed Consolidated Financial Statements of BorgWarner Inc. and Consolidated Subsidiaries (the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes necessary for a comprehensive presentation of financial position, results of operations and cash flow activity required by GAAP for complete financial statements. In the opinion of management, all normal recurring adjustments necessary for a fair statement of results have been included. Certain prior period amounts have been reclassified to conform to the current period presentation. Operating results for the three and nine months ended September 30, 2021 are not necessarily indicative of the results that may be expected for the year ending December 31, 2021. The balance sheet as of December 31, 2020 was derived from the audited financial statements as of that date. For further information, refer to the Consolidated Financial Statements and Footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020.
Use of Estimates	Management makes estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and accompanying notes, as well as the amounts of revenues and expenses reported during the periods covered by those financial statements and accompanying notes. Actual results could differ from these estimates.
New Accounting Pronouncements	In January 2020, the FASB issued Accounting Standards Update (“ASU”) No. 2020-1, “Investments - Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815).” It clarifies the interaction among the accounting for equity securities, equity method investments, and certain derivative instruments. Specifically, for the purposes of applying the ASC Topic 321 measurement alternative, a company should consider observable transactions immediately before applying or upon discontinuing the equity method. Additionally, when determining the accounting for certain forward contracts and purchased options entered into to purchase securities, a company should not consider if the underlying securities would be accounted for under the equity method (ASC Topic 323) or fair value option (ASC Topic 825). This guidance was effective for interim and annual periods beginning after December 15, 2020. The Company adopted this guidance as of January 1, 2021, and there was no impact on its Consolidated Financial Statements. In December 2019, the FASB issued ASU No. 2019-12, “Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes.” It removes certain exceptions to the general principles in ASC Topic 740 and improves consistent application of and simplifies GAAP for other areas of ASC Topic 740 by clarifying and amending existing guidance. This guidance was effective for interim and annual reporting periods beginning after December 15, 2020. The Company adopted this guidance as of January 1, 2021, and the impact on its Consolidated Financial Statements was immaterial. In August 2018, the FASB issued ASU No. 2018-14, “Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20).” It (i) requires the removal of disclosures that are no longer considered cost beneficial; (ii) clarifies specific requirements of certain disclosures; and (iii) adds new disclosure requirements, including the weighted average interest crediting rates for cash balance plans and other plans with promised interest crediting rates, and reasons for significant gains and losses related to changes in the benefit obligation. This guidance was effective for annual periods beginning after December 15, 2020. The Company adopted this guidance as of January 1, 2021, and there was no impact on these Condensed Consolidated Financial Statements; however, the Company will include the annual disclosures as required in its Annual Report on Form 10-K.

ACQUISITIONS (Tables)

ACQUISITIONS (Tables)	9 Months Ended
ACQUISITIONS (Tables)	Sep. 30, 2021
Business Combination and Asset Acquisition [Abstract]
Schedule of fair values of assets acquired and liabilities	The following table summarizes the estimated fair values of assets acquired and liabilities assumed as of June 4, 2021, the acquisition date: (in millions) Initial Allocation Measurement Period Adjustments Revised Allocation ASSETS Cash and cash equivalents (including restricted cash of $16 million) $ 29 $ — $ 29 Receivables, net 16 — 16 Inventories, net 42 (2) 40 Prepayments and other current assets 5 — 5 Property, plant and equipment, net 106 4 110 Goodwill 707 (4) 703 Other intangible assets, net 130 — 130 Total assets acquired 1,035 (2) 1,033 LIABILITIES Notes payable and other short-term debt 8 — 8 Accounts payable 22 — 22 Other current liabilities 13 5 18 Long-term debt 69 — 69 Other non-current liabilities 39 (7) 32 Total liabilities assumed 151 (2) 149 Noncontrolling interest 96 — 96 Net assets and noncontrolling interest acquired $ 788 $ — $ 788 The following table summarizes the final fair values of assets acquired and liabilities assumed as of the acquisition date and subsequent measurement period adjustments: (in millions) Initial Allocation Measurement Period Adjustments Revised Allocation ASSETS Cash and cash equivalents $ 460 $ — $ 460 Receivables, net 901 (4) 897 Inventories, net 398 (5) 393 Prepayments and other current assets 77 2 79 Property, plant and equipment, net 1,548 (31) 1,517 Investments and other long-term receivables 103 (1) 102 Goodwill 710 44 754 Other intangible assets, net 760 — 760 Other non-current assets 359 1 360 Total assets acquired 5,316 6 5,322 LIABILITIES Notes payable and other short-term debt 2 — 2 Accounts payable 692 1 693 Other current liabilities 609 9 618 Long-term debt 934 — 934 Other non-current liabilities: Retirement-related 313 — 313 Other non-current liabilities 286 (4) 282 Total liabilities assumed 2,836 6 2,842 Noncontrolling interest 89 — 89 Net assets and noncontrolling interest acquired $ 2,391 $ — $ 2,391
Schedule of other intangible assets acquired	The following table summarizes the other intangible assets acquired: (in millions) Estimated Life Estimated Fair Value Amortized intangible assets: Developed technology 5 years $ 70 Customer relationships 11 years 25 Total amortized intangible assets 95 Unamortized trade name Indefinite 35 Total other intangible assets $ 130 The following table summarizes the other intangible assets acquired: (in millions) Estimated Life Estimated Fair Value Amortized intangible assets: Developed technology 14 years $ 270 Customer relationships 15 years 380 Total amortized intangible assets 650 Unamortized trade name Indefinite 110 Total other intangible assets $ 760
Summary of purchase price consideration	The following table summarizes the purchase price for Delphi Technologies: (in millions, except for share data) BorgWarner common stock issued for purchase of Delphi Technologies 37,188,819 BorgWarner share price at October 1, 2020 $ 39.54 Fair value of stock consideration $ 1,470 Stock compensation consideration 7 Total stock consideration $ 1,477 Cash consideration 18 Repayment of Delphi Technologies’ debt 896 Total consideration $ 2,391
Schedule of goodwill	(in millions) Air Management $ 150 e-Propulsion & Drivetrain 301 Fuel Injection — Aftermarket 303 Total acquisition date goodwill $ 754 A summary of the changes in the carrying amount of goodwill are as follows: (in millions) Air Management e-Propulsion & Drivetrain Aftermarket Total Gross goodwill balance, December 31, 2020 $ 1,517 $ 1,313 $ 299 $ 3,129 Accumulated impairment losses, December 31, 2020 (502) — — (502) Net goodwill balance, December 31, 2020 $ 1,015 $ 1,313 $ 299 $ 2,627 Goodwill during the period: Acquisition 707 — — 707 Measurement period adjustments (4) 28 16 40 Held for sale — (18) — (18) Other, primarily translation adjustment (36) (31) (4) (71) Ending balance, September 30, 2021 $ 1,682 $ 1,292 $ 311 $ 3,285

REVENUE FROM CONTRACTS WITH C_2

REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)	9 Months Ended
REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Disaggregation of revenue	The following tables represent a disaggregation of revenue from contracts with customers by reporting segment and region and reflects the results of former Delphi Technologies entities in the three and nine months ended September 30, 2021. Refer to Note 23, “Reporting Segments And Related Information,” to the Condensed Consolidated Financial Statements for more information. Three Months Ended September 30, 2021 (In millions) Air Management e-Propulsion & Drivetrain Fuel Injection Aftermarket Total North America $ 460 $ 471 $ 13 $ 81 $ 1,025 Europe 647 183 201 114 1,145 Asia 483 524 144 16 1,167 Other 43 6 16 14 79 Total $ 1,633 $ 1,184 $ 374 $ 225 $ 3,416 Three Months Ended September 30, 2020 (In millions) Air Management e-Propulsion & Drivetrain Fuel Injection Aftermarket Total North America $ 384 $ 456 $ — $ — $ 840 Europe 658 186 — — 844 Asia 391 429 — — 820 Other 26 4 — — 30 Total $ 1,459 $ 1,075 $ — $ — $ 2,534 Nine Months Ended September 30, 2021 (In millions) Air Management e-Propulsion & Drivetrain Fuel Injection Aftermarket Total North America $ 1,456 $ 1,459 $ 17 $ 232 $ 3,164 Europe 2,265 710 731 324 4,030 Asia 1,586 1,710 428 46 3,770 Other 112 18 48 41 219 Total $ 5,419 $ 3,897 $ 1,224 $ 643 $ 11,183 Nine Months Ended September 30, 2020 (In millions) Air Management e-Propulsion & Drivetrain Fuel Injection Aftermarket Total North America $ 938 $ 1,069 $ — $ — $ 2,007 Europe 1,707 467 — — 2,174 Asia 988 995 — — 1,983 Other 64 11 — — 75 Total $ 3,697 $ 2,542 $ — $ — $ 6,239

RESTRUCTURING (Tables)

RESTRUCTURING (Tables)	9 Months Ended
RESTRUCTURING (Tables)	Sep. 30, 2021
Restructuring and Related Activities [Abstract]
Schedule of restructuring reserve by type of cost	The Company’s restructuring expenses consist primarily of employee termination benefits (principally severance and/or termination benefits) and other costs, which are primarily professional fees and costs related to facility closures and exits. Three Months Ended September 30, 2021 (in millions Air Management e-Propulsion & Drivetrain Fuel Injection Corporate Total Employee termination benefits $ 7 $ 2 $ 29 $ — $ 38 Other 4 9 — — 13 Total restructuring expense $ 11 $ 11 $ 29 $ — $ 51 Three Months Ended September 30, 2020 Air Management e-Propulsion & Drivetrain Fuel Injection Corporate Total Employee termination benefits $ 9 $ — $ — $ 1 $ 10 Other 5 4 — 1 10 Total restructuring expense $ 14 $ 4 $ — $ 2 $ 20 Nine Months Ended September 30, 2021 Air Management e-Propulsion & Drivetrain Fuel Injection Corporate Total Employee termination benefits $ 30 $ 9 $ 56 $ — $ 95 Other 10 35 — 3 48 Total restructuring expense $ 40 $ 44 $ 56 $ 3 $ 143 Nine Months Ended September 30, 2020 Air Management e-Propulsion & Drivetrain Fuel Injection Corporate Total Employee termination benefits $ 31 $ 18 $ — $ 1 $ 50 Other 12 9 — 1 22 Total restructuring expense $ 43 $ 27 $ — $ 2 $ 72
Schedule of restructuring reserve of roll forward of the restructuring liability	The following tables display a rollforward of the restructuring liability recorded within the Company’s Condensed Consolidated Balance Sheets and the related cash flow activity: (in millions Employee Termination Benefits Other Total Balance at January 1, 2021 $ 160 $ 13 $ 173 Restructuring expense, net 95 48 143 Cash payments (107) (52) (159) Foreign currency translation adjustment 2 — 2 Balance at September 30, 2021 150 9 159 Less: Non-current restructuring liability 47 2 49 Current restructuring liability at September 30, 2021 $ 103 $ 7 $ 110 Employee Termination Benefits Other Total Balance at January 1, 2020 $ 34 $ — $ 34 Restructuring expense, net 50 22 72 Cash payments (40) (6) (46) Foreign currency translation adjustment and other — 2 2 Balance at September 30, 2020 44 18 62 Less: Non-current restructuring liability 16 3 19 Current restructuring liability at September 30, 2020 $ 28 $ 15 $ 43

RESEARCH AND DEVELOPMENT COSTS

RESEARCH AND DEVELOPMENT COSTS (Tables)	9 Months Ended
RESEARCH AND DEVELOPMENT COSTS (Tables)	Sep. 30, 2021
Research and Development [Abstract]
Schedule of research and development costs	The following table presents the Company’s gross and net expenditures on R&D activities: Three Months Ended September 30, Nine Months Ended September 30, (in millions) 2021 2020 2021 2020 Gross R&D expenditures $ 231 $ 115 $ 675 $ 336 Customer reimbursements (47) (15) (142) (39) Net R&D expenditures $ 184 $ 100 $ 533 $ 297

OTHER OPERATING EXPENSE, NET (T

OTHER OPERATING EXPENSE, NET (Tables)	9 Months Ended
OTHER OPERATING EXPENSE, NET (Tables)	Sep. 30, 2021
Other Income and Expenses [Abstract]
Schedule of other expense	Items included in Other operating expense, net consist of: Three Months Ended September 30, Nine Months Ended September 30, (in millions) 2021 2020 2021 2020 Restructuring expense (Note 5) $ 51 $ 20 $ 143 $ 72 Merger, acquisition and divestiture expense 8 16 36 58 Loss on sale — — 7 — Asset impairments — — — 17 Net gain on insurance recovery for property damage (1) (3) (3) (9) Other income, net (4) (4) (10) (5) Other operating expense, net $ 54 $ 29 $ 173 $ 133

INVENTORIES, NET (Tables)

INVENTORIES, NET (Tables)	9 Months Ended
INVENTORIES, NET (Tables)	Sep. 30, 2021
Inventory Disclosure [Abstract]
Schedule of inventory	A summary of Inventories, net is presented below: September 30, December 31, (in millions) 2021 2020 Raw material and supplies $ 1,082 $ 827 Work in progress 182 150 Finished goods 410 324 FIFO inventories 1,674 1,301 LIFO reserve (25) (15) Inventories, net $ 1,649 $ 1,286

OTHER CURRENT AND NON-CURRENT_2

OTHER CURRENT AND NON-CURRENT ASSETS (Tables)	9 Months Ended
OTHER CURRENT AND NON-CURRENT ASSETS (Tables)	Sep. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of additional related assets	Additional detail related to assets is presented below: September 30, December 31, (in millions) 2021 2020 Prepayments and other current assets: Prepaid tooling $ 91 $ 84 Prepaid taxes 44 64 Customer incentive payments (Note 4) 38 43 Prepaid engineering 29 33 Contract assets (Note 4) 21 16 Other 85 72 Total prepayments and other current assets $ 308 $ 312 Investments and other long-term receivables: Investment in equity affiliates $ 297 $ 297 Equity securities (Note 3) 150 472 Other long-term receivables 66 51 Total investments and other long-term receivables $ 513 $ 820 Other non-current assets: Deferred income taxes $ 282 $ 291 Operating leases 200 211 Customer incentive payments (Note 4) 142 166 Other 75 60 Total other non-current assets $ 699 $ 728

ASSETS AND LIABILITIES HELD F_2

ASSETS AND LIABILITIES HELD FOR SALE (Tables)	9 Months Ended
ASSETS AND LIABILITIES HELD FOR SALE (Tables)	Sep. 30, 2021
Discontinued Operations and Disposal Groups [Abstract]
Schedule of assets and liabilities classified as held for sale	The assets and liabilities classified as held for sale as of September 30, 2021 consist of: September 30, (in millions) 2021 Assets held for sale: Receivables, net $ 28 Inventories, net 12 Prepayments and other current assets 1 Property, plant and equipment, net 46 Goodwill 18 Total assets held for sale $ 105 Liabilities held for sale: Accounts payable $ 15 Other current liabilities 7 Total liabilities held for sale $ 22

GOODWILL AND OTHER INTANGIBLES

GOODWILL AND OTHER INTANGIBLES (Tables)	9 Months Ended
GOODWILL AND OTHER INTANGIBLES (Tables)	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of goodwill	(in millions) Air Management $ 150 e-Propulsion & Drivetrain 301 Fuel Injection — Aftermarket 303 Total acquisition date goodwill $ 754 A summary of the changes in the carrying amount of goodwill are as follows: (in millions) Air Management e-Propulsion & Drivetrain Aftermarket Total Gross goodwill balance, December 31, 2020 $ 1,517 $ 1,313 $ 299 $ 3,129 Accumulated impairment losses, December 31, 2020 (502) — — (502) Net goodwill balance, December 31, 2020 $ 1,015 $ 1,313 $ 299 $ 2,627 Goodwill during the period: Acquisition 707 — — 707 Measurement period adjustments (4) 28 16 40 Held for sale — (18) — (18) Other, primarily translation adjustment (36) (31) (4) (71) Ending balance, September 30, 2021 $ 1,682 $ 1,292 $ 311 $ 3,285
Summary of intangible assets gross roll forward	The Company’s other intangible assets, primarily from acquisitions, consist of the following: September 30, 2021 December 31, 2020 (in millions) Estimated useful lives (years) Gross Accumulated Net Gross Accumulated Net Amortized intangible assets: Patented and unpatented technology 5 - 15 $ 445 $ 97 $ 348 $ 383 $ 77 $ 306 Customer relationships 7 - 15 883 299 584 893 272 621 Miscellaneous 2 - 13 10 7 3 10 7 3 Total amortized intangible assets 1,338 403 935 1,286 356 930 Unamortized trade names 199 — 199 166 — 166 Total other intangible assets $ 1,537 $ 403 $ 1,134 $ 1,452 $ 356 $ 1,096

PRODUCT WARRANTY (Tables)

PRODUCT WARRANTY (Tables)	9 Months Ended
PRODUCT WARRANTY (Tables)	Sep. 30, 2021
Product Warranties Disclosures [Abstract]
Schedule of product warranty liability	The following table summarizes the activity in the product warranty accrual accounts: (in millions) 2021 2020 Beginning balance, January 1 $ 253 $ 116 Provisions for current period sales 69 36 Adjustments of prior estimates 17 14 Payments (90) (41) Other, primarily translation adjustment (2) 2 Ending balance, September 30 $ 247 $ 127 The product warranty liability is classified in the Condensed Consolidated Balance Sheets as follows: September 30, December 31, (in millions) 2021 2020 Other current liabilities $ 143 $ 164 Other non-current liabilities 104 89 Total product warranty liability $ 247 $ 253

NOTES PAYABLE AND DEBT (Tables)

NOTES PAYABLE AND DEBT (Tables)	9 Months Ended
NOTES PAYABLE AND DEBT (Tables)	Sep. 30, 2021
Debt Disclosure [Abstract]
Schedule of long-term debt instruments	As of September 30, 2021 and December 31, 2020, the Company had debt outstanding as follows: September 30, December 31, ( in millions ) 2021 2020 Short-term borrowings $ 44 $ 45 Long-term debt 1.800% Senior notes due 11/07/22 (€500 million par value) — 609 3.375% Senior notes due 03/15/25 ($500 million par value) 498 498 5.000% Senior notes due 03/15/25 ($800 million par value)* 895 912 2.650% Senior notes due 07/01/27 ($1,100 million par value) 1,090 1,088 7.125% Senior notes due 02/15/29 ($121 million par value) 119 119 1.000% Senior Notes due 05/19/31 (€1,000 million par value) 1,137 — 4.375% Senior notes due 03/15/45 ($500 million par value) 494 494 Term loan facilities, finance leases and other 65 22 Total long-term debt 4,298 3,742 Less: current portion 10 4 Long-term debt, net of current portion $ 4,288 $ 3,738 ________________ *Includes the fair value step-up from the Delphi Technologies acquisition, which was based on observable market data and will be amortized as a reduction to interest expense over the remaining life of the instrument using the effective interest method.

OTHER CURRENT AND NON-CURRENT_3

OTHER CURRENT AND NON-CURRENT LIABILITIES (Tables)	9 Months Ended
OTHER CURRENT AND NON-CURRENT LIABILITIES (Tables)	Sep. 30, 2021
Other Liabilities Disclosure [Abstract]
Summary of additional details related to other liabilities	Additional detail related to liabilities is presented in the table below: September 30, December 31, ( in millions ) 2021 2020 Other current liabilities: Payroll and employee related $ 321 $ 301 Customer related 247 198 Product warranties (Note 13) 143 164 Employee termination benefits (Note 5) 103 101 Income taxes payable 99 102 Indirect taxes 59 69 Accrued freight 52 41 Operating leases 48 47 Interest 31 18 Contract liabilities (Note 4) 23 22 Dividends payable 20 6 Insurance 19 20 Retirement related 16 16 Other 249 304 Total other current liabilities $ 1,430 $ 1,409 Other non-current liabilities: Other income tax liabilities $ 254 $ 300 Deferred income taxes 240 276 Operating leases 159 172 Product warranties (Note 13) 104 89 Derivative instruments 78 162 Deferred income 65 55 Employee termination benefits (Note 5) 47 59 Other 81 68 Total other non-current liabilities $ 1,028 $ 1,181

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	9 Months Ended
FAIR VALUE MEASUREMENTS (Tables)	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Schedule of assets and liabilities measured at fair value	The following tables classify assets and liabilities measured at fair value on a recurring basis as of September 30, 2021 and December 31, 2020: Basis of fair value measurements (in millions) Balance at September 30, 2021 Quoted prices in active markets for identical items Significant other observable inputs Significant unobservable inputs Valuation technique Assets: Investment in equity securities $ 95 $ 95 $ — $ — A Foreign currency contracts $ 15 $ — $ 15 $ — A Net investment hedge contracts $ 6 $ — $ 6 $ — A Liabilities: Foreign currency contracts $ 9 $ — $ 9 $ — A Net investment hedge contracts $ 77 $ — $ 77 $ — A Basis of fair value measurements (in millions) Balance at Quoted prices in active markets for identical items Significant other observable inputs Significant unobservable inputs Valuation Assets: Investment in equity securities $ 432 $ 432 $ — $ — A Foreign currency contracts $ 5 $ — $ 5 $ — A Liabilities: Foreign currency contracts $ 6 $ — $ 6 $ — A Net investment hedge contracts $ 161 $ — $ 161 $ — A

FINANCIAL INSTRUMENTS (Tables)

FINANCIAL INSTRUMENTS (Tables)	9 Months Ended
FINANCIAL INSTRUMENTS (Tables)	Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of foreign exchange derivative contracts outstanding	At September 30, 2021 and December 31, 2020, the following foreign currency derivative contracts were outstanding: Foreign currency derivatives (in millions)* Functional Currency Traded Currency Notional in traded currency Notional in traded currency Ending Duration British pound Euro 80 97 Dec - 22 Chinese renminbi US dollar 51 113 Dec - 22 Chinese renminbi Euro 14 — Dec - 21 Euro Polish zloty 199 147 Dec - 22 Euro US dollar 49 41 Dec - 22 Korean won US dollar 12 19 Dec - 21 US dollar British pound 10 — Dec - 22 US dollar Euro 113 55 Nov - 21 US dollar Korean won 75,014 15,000 Dec - 22 US dollar Singapore dollar 37 47 Dec - 22 US dollar Thailand baht 1,720 — May - 22 US dollar Mexican peso 1,251 1,178 Dec - 22 *Table above excludes non-significant traded currency pairings with total notional amounts less than $10 million U.S. dollar equivalent as of September 30, 2021 and December 31, 2020.
Schedule of foreign exchange contracts, statement of financial position	At September 30, 2021 and December 31, 2020, the following cross-currency swap contracts were outstanding: Cross-currency swaps (millions of dollars) September 30, 2021 December 31, 2020 Ending duration US dollar to Euro: Fixed receiving notional $ 500 $ 500 Mar - 25 Fixed paying notional € 450 € 450 Mar - 25 US dollar to Euro: Fixed receiving notional $ 1,100 $ 1,100 Jul - 27 Fixed paying notional € 976 € 976 Jul - 27 US dollar to Japanese yen: Fixed receiving notional $ 100 $ 100 Feb - 23 Fixed paying notional ¥ 10,978 ¥ 10,978 Feb - 23
Schedule of derivatives instruments in statements of financial position	At September 30, 2021 and December 31, 2020, the following amounts were recorded in the Condensed Consolidated Balance Sheets as being payable to or receivable from counterparties under ASC Topic 815: (in millions) Assets Liabilities Derivatives designated as hedging instruments Under 815: Location September 30, 2021 December 31, 2020 Location September 30, 2021 December 31, 2020 Foreign currency Prepayments and other current assets $ 5 $ 1 Other current liabilities $ 8 $ 4 Foreign currency Other non-current assets $ — $ — Other non-current liabilities $ 1 $ 1 Net investment hedges Other non-current assets $ 6 $ — Other non-current liabilities $ 77 $ 161 Derivatives not designated as hedging instruments: Foreign currency Prepayments and other current assets $ 8 $ 4 Other current liabilities $ — $ 1 Foreign currency Other non-current assets $ 2 $ — Other non-current liabilities $ — $ —
Schedule of cash flow hedges included in accumulated other comprehensive income (loss)	The table below shows deferred gains (losses) reported in AOCI as well as the amount expected to be reclassified to income in one year or less for designated net investment hedges. The amount expected to be reclassified to income in one year or less assumes no change in the current relationship of the hedged item at September 30, 2021 market rates. (in millions) Deferred gain (loss) in AOCI at Gain (loss) expected to be reclassified to income in one year or less Contract Type September 30, 2021 December 31, 2020 Net investment hedges: Foreign currency $ (7) $ (1) $ — Cross-currency swaps (71) (161) — Foreign currency-denominated debt 46 (68) — Total $ (32) $ (230) $ — Gains and (losses) on derivative instruments designated as net investment hedges were recognized in other comprehensive income (loss) during the periods presented below. (in millions) Three Months Ended September 30, Nine Months Ended September 30, Net investment hedges 2021 2020 2021 2020 Foreign currency $ — $ — $ (6) $ 1 Cross-currency swaps $ 43 $ (89) $ 90 $ (71) Foreign currency-denominated debt $ 27 $ (24) $ 64 $ (26)
Schedule of derivative instruments	Derivative instruments designated as hedging instruments as defined by ASC Topic 815 held during the period resulted in the following gains and losses recorded in income: Three Months Ended September 30, 2021 (in millions) Net sales Cost of sales Selling, general and administrative expenses Other comprehensive income (loss) Total amounts of earnings and other comprehensive income(loss) line items in which the effects of cash flow hedges are recorded $ 3,416 $ 2,766 $ 343 $ (73) Gain (loss) on cash flow hedging relationships: Foreign currency: Gain (loss) recognized in other comprehensive income $ (2) Gain (loss) reclassified from AOCI to income $ — $ (1) $ — Nine Months Ended September 30, 2021 (in millions) Net sales Cost of sales Selling, general and administrative expenses Other comprehensive income (loss) Total amounts of earnings and other comprehensive income(loss) line items in which the effects of cash flow hedges are recorded 11,183 8,953 1,084 $ (95) Gain (loss) on cash flow hedging relationships: Foreign currency: Gain (loss) recognized in other comprehensive income $ (5) Gain (loss) reclassified from AOCI to income $ — $ (2) $ — Three Months Ended September 30, 2020 (in millions) Net sales Cost of sales Selling, general and administrative expenses Other comprehensive income (loss) Total amounts of earnings and other comprehensive income(loss) line items in which the effects of cash flow hedges are recorded $ 2,534 $ 2,017 $ 204 $ 57 Gain (loss) on cash flow hedging relationships: Foreign currency: Gain (loss) recognized in other comprehensive income $ 1 Gain (loss) reclassified from AOCI to income $ — $ — $ — Nine Months Ended September 30, 2020 (in millions) Net sales Cost of sales Selling, general and administrative expenses Other comprehensive income (loss) Total amounts of earnings and other comprehensive income(loss) line items in which the effects of cash flow hedges are recorded $ 6,239 $ 5,101 $ 601 $ (3) Gain (loss) on cash flow hedging relationships: Foreign currency: Gain (loss) recognized in other comprehensive income $ (1) Gain (loss) reclassified from AOCI to income $ — $ — $ (1)
Schedule of derivative instruments, gain (loss)	Derivatives designated as net investment hedge instruments, as defined by ASC Topic 815, held during the period resulted in the following gains recorded in Interest expense on components excluded from the assessment of effectiveness: (in millions) Three Months Ended September 30, Nine Months Ended September 30, Net investment hedges 2021 2020 2021 2020 Cross-currency swaps $ 6 $ 6 $ 16 $ 13
Schedule of derivatives not designated as hedging instruments	Derivatives not designated as hedging instruments are used to hedge remeasurement exposures of monetary assets and liabilities denominated in currencies other than the operating units' functional currency. These derivatives resulted in the following gains recorded in income: (in millions) Three Months Ended September 30, Nine Months Ended September 30, Contract Type Location 2021 2020 2021 2020 Foreign Currency Selling, general and administrative expenses $ 6 $ (1) $ 11 $ 2

RETIREMENT BENEFIT PLANS (Table

RETIREMENT BENEFIT PLANS (Tables)	9 Months Ended
RETIREMENT BENEFIT PLANS (Tables)	Sep. 30, 2021
Retirement Benefits [Abstract]
Schedule of net benefit (income) costs	The components of net periodic benefit (income) cost recorded in the Condensed Consolidated Statements of Operations are as follows: Pension benefits Other postretirement (in millions) 2021 2020 Three Months Ended September 30, US Non-US US Non-US 2021 2020 Service cost $ — $ 6 $ — $ 5 $ — $ — Interest cost 1 8 1 2 — — Expected return on plan assets (2) (20) (2) (6) — — Amortization of unrecognized prior service credit (1) — (1) — (1) (1) Amortization of unrecognized loss 2 3 1 3 — 1 Net periodic benefit (income) cost $ — $ (3) $ (1) $ 4 $ (1) $ — Pension benefits Other postretirement (in millions) 2021 2020 Nine Months Ended September 30, US Non-US US Non-US 2021 2020 Service cost $ — $ 19 $ — $ 15 $ — $ — Interest cost 2 23 4 7 — 1 Expected return on plan assets (7) (62) (7) (18) — — Amortization of unrecognized prior service credit (1) — (1) — (2) (2) Amortization of unrecognized loss 3 10 2 8 1 1 Net periodic benefit (income) cost $ (3) $ (10) $ (2) $ 12 $ (1) $ —

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	9 Months Ended
STOCKHOLDERS' EQUITY (Tables)	Sep. 30, 2021
Stockholders' Equity Note [Abstract]
Schedule of stockholders equity	The changes of the Stockholders’ Equity items during the three and nine months ended September 30, 2021 and 2020, are as follows: BorgWarner Inc. stockholders' equity (in millions) Issued common stock Capital in excess of par value Treasury stock Retained earnings Accumulated other comprehensive income (loss) Noncontrolling interests Balance, June 30, 2021 $ 3 $ 2,602 $ (1,810) $ 6,527 $ (673) $ 373 Dividends declared ($0.17 per share) — — — (41) — (14) Net issuance for executive stock plan — 6 — — — — Net issuance of restricted stock — 9 — — — — Net earnings — — — 96 — 21 Other comprehensive loss — — — — (73) (6) Balance, September 30, 2021 $ 3 $ 2,617 $ (1,810) $ 6,582 $ (746) $ 374 BorgWarner Inc. stockholders' equity (in millions) Issued common stock Capital in excess of par value Treasury stock Retained earnings Accumulated other comprehensive income (loss) Noncontrolling interests Balance, June 30, 2020 $ 3 $ 1,115 $ (1,623) $ 5,903 $ (787) $ 152 Dividends declared ($0.17 per share) — — — (35) — (15) Net issuance for executive stock plan — 5 — — — — Net issuance of restricted stock — 8 — — — — Net earnings — — — 111 — 18 Other comprehensive income — — — — 57 6 Balance, September 30, 2020 $ 3 $ 1,128 $ (1,623) $ 5,979 $ (730) $ 161 BorgWarner Inc. stockholders' equity (in millions) Issued common stock Capital in excess of par value Treasury stock Retained earnings Accumulated other comprehensive income (loss) Noncontrolling interests Balance, December 31, 2020 $ 3 $ 2,614 $ (1,834) $ 6,296 $ (651) $ 296 Dividends declared ($0.51 per share) — — — (122) — (51) Net issuance for executive stock plan — 7 3 — — — Net issuance of restricted stock — (4) 21 — — — Acquisition of AKASOL — — — — — 96 Purchase of noncontrolling interest — — — — — (33) Net earnings — — — 408 — 77 Other comprehensive loss — — — — (95) (11) Balance, September 30, 2021 $ 3 $ 2,617 $ (1,810) $ 6,582 $ (746) $ 374 BorgWarner Inc. stockholders' equity (in millions) Issued common stock Capital in excess of par value Treasury stock Retained earnings Accumulated other comprehensive income (loss) Noncontrolling interests Balance, December 31, 2019 $ 3 $ 1,145 $ (1,657) $ 5,942 $ (727) $ 138 Dividends declared ($0.51 per share) — — — (105) — (20) Net issuance for executive stock plan — (11) 12 — — — Net issuance of restricted stock — (6) 22 — — — Net earnings — — — 142 — 40 Other comprehensive (loss) income — — — — (3) 3 Balance, September 30, 2020 $ 3 $ 1,128 $ (1,623) $ 5,979 $ (730) $ 161 __________________________________ * The dividends declared relate to BorgWarner common stock.

ACCUMULATED OTHER COMPREHENSI_2

ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)	9 Months Ended
ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)	Sep. 30, 2021
Equity [Abstract]
Schedule of accumulated other comprehensive loss	The following tables summarize the activity within accumulated other comprehensive loss during the three and nine months ended September 30, 2021 and 2020: (in millions) Foreign currency translation adjustments Hedge instruments Defined benefit retirement plans Total Beginning balance, June 30, 2021 $ (351) $ (2) $ (320) $ (673) Comprehensive (loss) income before reclassifications (55) (2) 8 (49) Income taxes associated with comprehensive (loss) income before reclassifications (26) — (1) (27) Reclassification from accumulated other comprehensive loss — 1 2 3 Income taxes reclassified into net earnings — — — — Ending balance, September 30, 2021 $ (432) $ (3) $ (311) $ (746) (in millions) Foreign currency translation adjustments Hedge instruments Defined benefit retirement plans Total Beginning balance, June 30, 2020 $ (557) $ (1) $ (229) $ (787) Comprehensive (loss) income before reclassifications 25 1 7 33 Income taxes associated with comprehensive (loss) income before reclassifications 24 — 2 26 Reclassification from accumulated other comprehensive loss — — (3) (3) Income taxes reclassified into net earnings — — 1 1 Ending balance, September 30, 2020 $ (508) $ — $ (222) $ (730) (in millions) Foreign currency translation adjustments Hedge instruments Defined benefit retirement plans Total Balance, December 31, 2020 $ (321) $ — $ (330) $ (651) Comprehensive (loss) income before reclassifications (68) (5) 11 (62) Income taxes associated with comprehensive (loss) income before reclassifications (43) — — (43) Reclassification from accumulated other comprehensive loss — 2 10 12 Income taxes reclassified into net earnings — — (2) (2) Ending balance, September 30, 2021 $ (432) $ (3) $ (311) $ (746) (in millions) Foreign currency translation adjustments Hedge instruments Defined benefit retirement plans Total Balance, December 31, 2019 $ (497) $ — $ (230) $ (727) Comprehensive (loss) income before reclassifications (31) (1) 13 (19) Income taxes associated with comprehensive (loss) income before reclassifications 20 — 1 21 Reclassification from accumulated other comprehensive loss — 1 (8) (7) Income taxes reclassified into net earnings — — 2 2 Ending balance, September 30, 2020 $ (508) $ — $ (222) $ (730)

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	9 Months Ended
EARNINGS PER SHARE (Tables)	Sep. 30, 2021
Earnings Per Share [Abstract]
Schedule of earnings per share reconciliation	The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share of common stock: Three Months Ended September 30, Nine Months Ended September 30, (in millions, except per share amounts) 2021 2020 2021 2020 Basic earnings per share: Net earnings attributable to BorgWarner Inc. $ 96 $ 111 $ 408 $ 142 Weighted average shares of common stock outstanding 238.2 206.0 238.0 205.9 Basic earnings per share of common stock $ 0.40 $ 0.54 $ 1.71 $ 0.69 Diluted earnings per share: Net earnings attributable to BorgWarner Inc. $ 96 $ 111 $ 408 $ 142 Weighted average shares of common stock outstanding 238.2 206.0 238.0 205.9 Effect of stock-based compensation 1.6 1.3 1.3 0.8 Weighted average shares of common stock outstanding including dilutive shares 239.8 207.3 239.3 206.7 Diluted earnings per share of common stock $ 0.40 $ 0.53 $ 1.70 $ 0.69 Anti-dilutive stock-based awards excluded from the calculation of diluted earnings per share: — — — —

REPORTING SEGMENTS AND RELATE_2

REPORTING SEGMENTS AND RELATED INFORMATION (Tables)	9 Months Ended
REPORTING SEGMENTS AND RELATED INFORMATION (Tables)	Sep. 30, 2021
Segment Reporting [Abstract]
Schedule of net sales by reporting segment	The following tables show segment information and Segment Adjusted EBIT for the Company’s reporting segments: Net Sales by Reporting Segment Three Months Ended September 30, Nine Months Ended September 30, (in millions) 2021 2020 2021 2020 Air Management $ 1,671 $ 1,476 $ 5,536 $ 3,736 e-Propulsion & Drivetrain 1,223 1,075 4,026 2,542 Fuel Injection 420 — 1,375 — Aftermarket 227 — 650 — Inter-segment eliminations (125) (17) (404) (39) Net sales $ 3,416 $ 2,534 $ 11,183 $ 6,239
Schedule of segment earnings before interest and income taxes	Segment Adjusted EBIT Three Months Ended September 30, Nine Months Ended September 30, (in millions) 2021 2020 2021 2020 Air Management $ 214 $ 225 $ 813 $ 461 e-Propulsion & Drivetrain 85 131 354 195 Fuel Injection 37 — 108 — Aftermarket 29 — 82 — Segment Adjusted EBIT 365 356 1,357 656 Corporate, including stock-based compensation 54 39 201 114 Restructuring expense 51 20 143 72 Merger, acquisition and divestiture expense 8 16 36 58 Loss on sale — — 7 — Asset impairments — — — 17 Net gain on insurance recovery for property damage (1) (3) (3) (9) Equity in affiliates’ earnings, net of tax (12) (3) (40) (10) Unrealized loss on equity securities 61 — 337 9 Interest income (3) (3) (9) (8) Interest expense 21 20 84 50 Other postretirement income (10) (2) (33) (5) Earnings before income taxes and noncontrolling interest 196 272 634 368 Provision for income taxes 79 143 149 186 Net earnings 117 129 $ 485 $ 182 Net earnings attributable to noncontrolling interest, net of tax 21 18 77 40 Net earnings attributable to BorgWarner Inc. $ 96 $ 111 $ 408 $ 142

OPERATING CASH FLOWS AND OTHE_2

OPERATING CASH FLOWS AND OTHER SUPPLEMENTAL FINANCIAL INFORMATION (Tables)	9 Months Ended
	Sep. 30, 2021
Supplemental Cash Flow Elements [Abstract]
Schedule of cash flow, supplemental disclosures	Nine Months Ended September 30, (in millions) 2021 2020 OPERATING Net earnings $ 485 $ 182 Adjustments to reconcile net earnings to net cash flows from operations: Depreciation and amortization 585 339 Restructuring expense, net of cash paid 118 49 Stock-based compensation expense 42 29 Loss on sale 7 — Loss on debt extinguishment 20 — Asset impairments — 17 Deferred income tax (benefit) provision (101) 56 Unrealized loss on equity securities 337 9 Gain on insurance recovery received for property damages (5) (9) Other non-cash adjustments (18) (1) Net earnings adjustments to reconcile to net cash flows from operations 1,470 671 Retirement plan contributions (15) (15) Changes in assets and liabilities, excluding effects of acquisitions, divestitures and foreign currency translation adjustments: Receivables (45) (25) Inventories (382) 3 Prepayments and other current assets (7) (4) Accounts payable and accrued expenses (231) 153 Prepaid taxes and income taxes payable 21 (2) Other assets and liabilities (47) 27 Net cash provided by operating activities $ 764 $ 808 SUPPLEMENTAL CASH FLOW INFORMATION Cash paid during the period for: Interest, net $ 93 $ 53 Income taxes, net of refunds $ 271 $ 110 Balance as of: Non-cash investing transactions: September 30, December 31, Period end accounts payable related to property, plant and equipment purchases $ 105 $ 182

ACQUISITIONS - Narrative (Detai

ACQUISITIONS - Narrative (Details) $ / shares in Units, $ in Millions	Oct. 05, 2020USD ($)	Oct. 01, 2020USD ($)$ / shares	Sep. 30, 2019USD ($)	Sep. 30, 2021USD ($)	Dec. 31, 2020USD ($)	Sep. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Sep. 30, 2021USD ($)segment	Sep. 30, 2021EUR (€)segment	Sep. 30, 2020USD ($)	Sep. 30, 2021EUR (€)	Aug. 02, 2021	Jun. 04, 2021USD ($)	Jun. 04, 2021EUR (€)	May 19, 2021EUR (€)	Dec. 29, 2020	May 31, 2019USD ($)
Business Acquisition [Line Items]
Goodwill				$ 3,285	$ 2,627			$ 3,285
Number of reportable segments \| segment								4	4
Unrealized gain (loss) on investments				(61)		$ 0		$ (337)		$ (9)
Equity securities				150	472			150
Asset impairments				0		0		0		17
BorgWarner Romeo Power LLC
Business Acquisition [Line Items]
Payments for investments in equity securities																	$ 50
Payments to acquire interest in joint venture			$ 10
Unrealized gain (loss) on investments				(61)	391			(337)
Equity securities				$ 95	$ 432			$ 95
Asset impairments							$ 9
Investment in equity securities							$ 41
Romeo Power Inc
Business Acquisition [Line Items]
Equity method interest (percent)																	20.00%
Senior Notes
Business Acquisition [Line Items]
Debt instrument, face amount		$ 800
Senior Notes \| 1.000% Senior Notes due 05/19/31 (€1,000 million par value)
Business Acquisition [Line Items]
Debt instrument stated interest rate				1.00%				1.00%			1.00%		1.00%	1.00%	1.00%
Debt instrument, face amount \| €											€ 1,000,000,000				€ 1,000,000,000
Senior Notes \| DT Notes
Business Acquisition [Line Items]
Debt instrument stated interest rate		5.00%
Redeemable principal amount	$ 776
Percentage of principal amount redeemed	97.00%
BorgWarner Romeo Power LLC
Business Acquisition [Line Items]
Noncontrolling interest, ownership percentage by parent (in percent)			60.00%													14.00%
AKASOL
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired				93.00%				93.00%			93.00%	100.00%	89.00%	89.00%
Amount of settlement paid													$ 788	€ 648,000,000
Financial liabilities assumed													77	€ 64,000,000
Purchase of additional shares of AKASOL								$ 33	€ 28,000,000
Goodwill				$ 703				703					$ 707
Delphi Technologies PLC
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired		100.00%
Goodwill		$ 710		$ 754				$ 754
Fixed exchange ratio		0.4307
Common stock, par value (in dollar per share) \| $ / shares		$ 0.01
Total consideration		$ 2,391
Net sales						$ 3,588				$ 8,866
Delphi Technologies PLC \| Senior Notes
Business Acquisition [Line Items]
Financial liabilities assumed		$ 800
Senior notes	$ 24

ACQUISITIONS - Fair Values of A

ACQUISITIONS - Fair Values of Assets Acquired and Liabilities (Details) - USD ($) $ in Millions	Jun. 04, 2021	Oct. 01, 2020	Sep. 30, 2021	Dec. 31, 2020
ASSETS
Goodwill			$ 3,285	$ 2,627
Measurement period adjustments, goodwill			40
AKASOL
ASSETS
Cash and cash equivalents	$ 29		29
Measurement period adjustments, cash and cash equivalents	0
Receivables, net	16		16
Measurement period adjustments, receivables, net	0
Inventories, net	42		40
Measurement period adjustments, inventories, net	(2)
Prepayments and other current assets	5		5
Measurement period adjustments, prepayments and other current assets	0
Property, plant and equipment, net	106		110
Measurement period adjustments, property, plant and equipment, net	4
Goodwill	707		703
Measurement period adjustments, goodwill	(4)
Other intangible assets, net	130		130
Measurement period adjustments, other intangible assets, net	0
Total assets acquired	1,035		1,033
Measurement period adjustments, total assets acquired	(2)
LIABILITIES
Notes payable and other short-term debt	8		8
Measurement period adjustments, notes payable and other short-term debt	0
Accounts payable	22		22
Measurement period adjustments, accounts payable	0
Other current liabilities	13		18
Measurement period adjustments, other current liabilities	5
Long-term debt	69		69
Measurement period adjustments, long-term debt	0
Other non-current liabilities	39		32
Measurement period adjustments, other	(7)
Total liabilities assumed	151		149
Measurement period adjustments, total liabilities assumed	(2)
Noncontrolling interest	96		96
Measurement period adjustments, non controlling interests	0
Net assets and noncontrolling interest acquired	788		788
Measurement period adjustments, net assets and non controlling interests	0
Restricted cash	$ 16
Delphi Technologies PLC
ASSETS
Cash and cash equivalents		$ 460	460
Measurement period adjustments, cash and cash equivalents		0
Receivables, net		901	897
Measurement period adjustments, receivables, net		(4)
Inventories, net		398	393
Measurement period adjustments, inventories, net		(5)
Prepayments and other current assets		77	79
Measurement period adjustments, prepayments and other current assets		2
Property, plant and equipment, net		1,548	1,517
Measurement period adjustments, property, plant and equipment, net		(31)
Investments and other long-term receivables		103	102
Measurement period adjustments, investments and other long-term receivables		(1)
Goodwill		710	754
Measurement period adjustments, goodwill		44
Other intangible assets, net		760	760
Measurement period adjustments, other intangible assets, net		0
Other non-current assets		359	360
Measurement period adjustments, other non current assets		1
Total assets acquired		5,316	5,322
Measurement period adjustments, total assets acquired		6
LIABILITIES
Notes payable and other short-term debt		2	2
Measurement period adjustments, notes payable and other short-term debt		0
Accounts payable		692	693
Measurement period adjustments, accounts payable		1
Other current liabilities		609	618
Measurement period adjustments, other current liabilities		9
Long-term debt		934	934
Measurement period adjustments, long-term debt		0
Retirement-related		313	313
Measurement period adjustments, retirement-related		0
Other non-current liabilities		286	282
Measurement period adjustments, other		(4)
Total liabilities assumed		2,836	2,842
Measurement period adjustments, total liabilities assumed		6
Noncontrolling interest		89	89
Measurement period adjustments, non controlling interests		0
Net assets and noncontrolling interest acquired		2,391	$ 2,391
Measurement period adjustments, net assets and non controlling interests		$ 0

ACQUISITIONS - Schedule of Othe

ACQUISITIONS - Schedule of Other Intangible Assets Acquired (Details) - USD ($) $ in Millions	Jun. 04, 2021	Oct. 01, 2020	Sep. 30, 2021
Delphi Technologies PLC
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangibles		$ 650
Other intangible assets, net		760	$ 760
Delphi Technologies PLC \| Unamortized trade names
Finite-Lived Intangible Assets [Line Items]
Unamortized trade name		$ 110
Delphi Technologies PLC \| Developed technology
Finite-Lived Intangible Assets [Line Items]
Estimated Life		14 years
Finite-lived intangibles		$ 270
Delphi Technologies PLC \| Customer relationships
Finite-Lived Intangible Assets [Line Items]
Estimated Life		15 years
Finite-lived intangibles		$ 380
AKASOL
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangibles	$ 95
Other intangible assets, net	130		$ 130
AKASOL \| Unamortized trade names
Finite-Lived Intangible Assets [Line Items]
Unamortized trade name	$ 35
AKASOL \| Developed technology
Finite-Lived Intangible Assets [Line Items]
Estimated Life	5 years
Finite-lived intangibles	$ 70
AKASOL \| Customer relationships
Finite-Lived Intangible Assets [Line Items]
Estimated Life	11 years
Finite-lived intangibles	$ 25

ACQUISITIONS - Summary of Purch

ACQUISITIONS - Summary of Purchase Price Consideration (Details) - USD ($) $ / shares in Units, $ in Millions	Oct. 01, 2020	Sep. 30, 2021	Sep. 30, 2020
Business Acquisition [Line Items]
Cash consideration		$ 759	$ 2
Delphi Technologies PLC
Business Acquisition [Line Items]
BorgWarner common stock issued for purchase of Delphi Technologies (in shares)	37,188,819
BorgWarner share price (in dollar per share)	$ 39.54
Fair value of stock consideration	$ 1,470
Stock compensation consideration	7
Total stock consideration	1,477
Cash consideration	18
Repayment of Delphi Technologies’ debt	896
Total consideration	$ 2,391

ACQUISITIONS - Schedule of Good

ACQUISITIONS - Schedule of Goodwill (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020	Oct. 01, 2020
Business Acquisition [Line Items]
Goodwill	$ 3,285	$ 2,627
Schedule of goodwill	(in millions) Air Management $ 150 e-Propulsion & Drivetrain 301 Fuel Injection — Aftermarket 303 Total acquisition date goodwill $ 754 A summary of the changes in the carrying amount of goodwill are as follows: (in millions) Air Management e-Propulsion & Drivetrain Aftermarket Total Gross goodwill balance, December 31, 2020 $ 1,517 $ 1,313 $ 299 $ 3,129 Accumulated impairment losses, December 31, 2020 (502) — — (502) Net goodwill balance, December 31, 2020 $ 1,015 $ 1,313 $ 299 $ 2,627 Goodwill during the period: Acquisition 707 — — 707 Measurement period adjustments (4) 28 16 40 Held for sale — (18) — (18) Other, primarily translation adjustment (36) (31) (4) (71) Ending balance, September 30, 2021 $ 1,682 $ 1,292 $ 311 $ 3,285
Air Management
Business Acquisition [Line Items]
Goodwill	$ 1,682	1,015
e-Propulsion & Drivetrain
Business Acquisition [Line Items]
Goodwill	1,292	1,313
Aftermarket
Business Acquisition [Line Items]
Goodwill	311	$ 299
Delphi Technologies PLC
Business Acquisition [Line Items]
Goodwill	754		$ 710
Delphi Technologies PLC \| Air Management
Business Acquisition [Line Items]
Goodwill	150
Delphi Technologies PLC \| e-Propulsion & Drivetrain
Business Acquisition [Line Items]
Goodwill	301
Delphi Technologies PLC \| Fuel Injection
Business Acquisition [Line Items]
Goodwill	0
Delphi Technologies PLC \| Aftermarket
Business Acquisition [Line Items]
Goodwill	$ 303

REVENUE FROM CONTRACTS WITH C_3

REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Contract assets	$ 21	$ 16
Contract liabilities - Current	23	22
Customer return assets	9	8
Customer incentive payments	38	43
Customer incentive payments	$ 142	166
Minimum
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction (in years)	3 years
Maximum
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction (in years)	7 years
Other Current Liabilities
Disaggregation of Revenue [Line Items]
Contract liabilities - Current	$ 23	22
Other non-current liabilities
Disaggregation of Revenue [Line Items]
Deferred income	1	6
Prepayments and other current assets
Disaggregation of Revenue [Line Items]
Customer incentive payments	38	43
Other non-current assets
Disaggregation of Revenue [Line Items]
Customer incentive payments	$ 142	$ 166

REVENUE FROM CONTRACTS WITH C_4

REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 3,416	$ 2,534	$ 11,183	$ 6,239
Air Management
Disaggregation of Revenue [Line Items]
Net sales	1,633	1,459	5,419	3,697
e-Propulsion & Drivetrain
Disaggregation of Revenue [Line Items]
Net sales	1,184	1,075	3,897	2,542
Fuel Injection
Disaggregation of Revenue [Line Items]
Net sales	374	0	1,224	0
Aftermarket
Disaggregation of Revenue [Line Items]
Net sales	225	0	643	0
North America
Disaggregation of Revenue [Line Items]
Net sales	1,025	840	3,164	2,007
North America \| Air Management
Disaggregation of Revenue [Line Items]
Net sales	460	384	1,456	938
North America \| e-Propulsion & Drivetrain
Disaggregation of Revenue [Line Items]
Net sales	471	456	1,459	1,069
North America \| Fuel Injection
Disaggregation of Revenue [Line Items]
Net sales	13	0	17	0
North America \| Aftermarket
Disaggregation of Revenue [Line Items]
Net sales	81	0	232	0
Europe
Disaggregation of Revenue [Line Items]
Net sales	1,145	844	4,030	2,174
Europe \| Air Management
Disaggregation of Revenue [Line Items]
Net sales	647	658	2,265	1,707
Europe \| e-Propulsion & Drivetrain
Disaggregation of Revenue [Line Items]
Net sales	183	186	710	467
Europe \| Fuel Injection
Disaggregation of Revenue [Line Items]
Net sales	201	0	731	0
Europe \| Aftermarket
Disaggregation of Revenue [Line Items]
Net sales	114	0	324	0
Asia
Disaggregation of Revenue [Line Items]
Net sales	1,167	820	3,770	1,983
Asia \| Air Management
Disaggregation of Revenue [Line Items]
Net sales	483	391	1,586	988
Asia \| e-Propulsion & Drivetrain
Disaggregation of Revenue [Line Items]
Net sales	524	429	1,710	995
Asia \| Fuel Injection
Disaggregation of Revenue [Line Items]
Net sales	144	0	428	0
Asia \| Aftermarket
Disaggregation of Revenue [Line Items]
Net sales	16	0	46	0
Other
Disaggregation of Revenue [Line Items]
Net sales	79	30	219	75
Other \| Air Management
Disaggregation of Revenue [Line Items]
Net sales	43	26	112	64
Other \| e-Propulsion & Drivetrain
Disaggregation of Revenue [Line Items]
Net sales	6	4	18	11
Other \| Fuel Injection
Disaggregation of Revenue [Line Items]
Net sales	16	0	48	0
Other \| Aftermarket
Disaggregation of Revenue [Line Items]
Net sales	$ 14	$ 0	$ 41	$ 0

RESTRUCTURING - Reserve by Type

RESTRUCTURING - Reserve by Type of Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	$ 51	$ 20	$ 143	$ 72
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	0	2	3	2
Air Management \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	11	14	40	43
e-Propulsion & Drivetrain \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	11	4	44	27
Fuel Injection \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	29	0	56	0
Employee termination benefits
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	38	10	95	50
Employee termination benefits \| Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	0	1	0	1
Employee termination benefits \| Air Management \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	7	9	30	31
Employee termination benefits \| e-Propulsion & Drivetrain \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	2	0	9	18
Employee termination benefits \| Fuel Injection \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	29	0	56	0
Other
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	13	10	48	22
Other \| Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	0	1	3	1
Other \| Air Management \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	4	5	10	12
Other \| e-Propulsion & Drivetrain \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	9	4	35	9
Other \| Fuel Injection \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	$ 0	$ 0	$ 0	$ 0

RESTRUCTURING - Roll Forward of

RESTRUCTURING - Roll Forward of Restructuring Liability (Details) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			$ 173	$ 34	$ 62
Restructuring expense, net	$ 51	$ 20	143	72
Cash payments			(159)	(46)
Foreign currency translation adjustment			2	2
Restructuring reserve, ending balance	159	62	159	62	159
Less: Non-current restructuring liability	49	19	49	19	49
Current restructuring liability	110	43	110	43	110
Employee Termination Benefits
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			160	34	44
Restructuring expense, net			95	50
Cash payments			(107)	(40)
Foreign currency translation adjustment			2	0
Restructuring reserve, ending balance	150	44	150	44	150
Less: Non-current restructuring liability	47	16	47	16	47
Current restructuring liability	103	28	103	28	103
Other
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			13	0	18
Restructuring expense, net			48	22
Cash payments			(52)	(6)
Foreign currency translation adjustment			0	2
Restructuring reserve, ending balance	9	18	9	18	9
Less: Non-current restructuring liability	2	3	2	3	2
Current restructuring liability	$ 7	$ 15	$ 7	$ 15	$ 7

RESTRUCTURING - Narrative (Deta

RESTRUCTURING - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended	20 Months Ended
RESTRUCTURING - Narrative (Details) $ in Millions	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)employee	Sep. 30, 2021USD ($)	Sep. 30, 2021USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	$ 51	$ 20	$ 143	$ 72
Restructuring expense, net	51	20	143	$ 72
Air Management
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated \| employee				350
Air Management \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	11	14	40	$ 43
e-Propulsion & Drivetrain \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	11	4	44	27
Fuel Injection \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	29	0	56	0
Contractual Settlements, Professional Fees And Other Costs \| Air Management \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	10		36
Contractual Settlements, Professional Fees And Other Costs \| e-Propulsion & Drivetrain
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net	4		27
Termination Benefit \| Air Management
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net		8		21
Severance Costs and Professional Fees \| Air Management
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net		7		19
Severance Costs and Professional Fees \| e-Propulsion & Drivetrain
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net		3		8
Employee termination benefits
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	38	10	95	50
Restructuring expense, net			95	50
Employee termination benefits \| Air Management
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net				$ 3
Number of positions eliminated \| employee				200
Employee termination benefits \| Air Management \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	7	9	30	$ 31
Employee termination benefits \| e-Propulsion & Drivetrain \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	2	0	9	18
Employee termination benefits \| e-Propulsion & Drivetrain \| Europe
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net		19		$ 19
Number of positions eliminated \| employee				350
Employee termination benefits \| Fuel Injection \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid	29	0	56	$ 0
Severance Costs, Equipment Relocation and Professional Fees \| e-Propulsion & Drivetrain
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net	7		17
Delphi Technologies PLC
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net			62
Delphi Technologies PLC \| Employee termination benefits \| Air Management
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net of cash paid			4
2020 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net	20	$ 20	81	$ 72		$ 229
Restructuring and related plan	$ 300		$ 300		$ 300	$ 300
Delphi Technologies Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring expense, net					$ 64

RESEARCH AND DEVELOPMENT COST_2

RESEARCH AND DEVELOPMENT COSTS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Gross R&D expenditures	$ 231	$ 115	$ 675	$ 336
Customer reimbursements	(47)	(15)	(142)	(39)
Net R&D expenditures	184	$ 100	533	$ 297
Delphi Technologies PLC
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Net R&D expenditures	$ 73		$ 205

OTHER OPERATING EXPENSE, NET -

OTHER OPERATING EXPENSE, NET - Other Operating Expense, Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Income and Expenses [Abstract]
Restructuring expense	$ 51	$ 20	$ 143	$ 72
Merger, acquisition and divestiture expense	8	16	36	58
Loss on sale	0	0	7	0
Asset impairments	0	0	0	17
Net gain on insurance recovery for property damage	(1)	(3)	(3)	(9)
Other income, net	(4)	(4)	(10)	(5)
Other operating expense, net	$ 54	$ 29	$ 173	$ 133

OTHER OPERATING EXPENSE, NET _2

OTHER OPERATING EXPENSE, NET - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)employee	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)employee
Schedule of Equity Method Investments
Merger, acquisition and divestiture expense	$ 8	$ 16	$ 36	$ 58
Loss on sale	0	0	7	0
Gain on business insurance recovery	$ 1	$ 3	$ 3	$ 9
Europe \| Facility Closure
Schedule of Equity Method Investments
Number of properties \| employee		2		2
Air Management
Schedule of Equity Method Investments
Impairment of carrying value				$ 9
e-Propulsion & Drivetrain
Schedule of Equity Method Investments
Impairment of carrying value				$ 8

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
INCOME TAXES (Details) - USD ($) $ in Millions	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Effective income tax rate, continuing operations (in percent)	40.00%	53.00%	24.00%	51.00%
Nondeductible expenses, restructuring expenses and merger, acquisition and divestiture expenses and asset impairment charges	$ 59		$ 179	$ 130
Tax benefits related to other one-time adjustments		$ 51
Unrecognized tax benefits, Income tax penalties and Interest expense			55
Discrete tax benefit			33
Foreign income tax rate expense (benefit)		10	(20)
Other tax expense (benefits) recognized			$ (22)	(23)
Deferred tax assets, valuation allowance		$ 17		$ 17

INVENTORIES, NET (Details)

INVENTORIES, NET (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw material and supplies	$ 1,082	$ 827
Work in progress	182	150
Finished goods	410	324
FIFO inventories	1,674	1,301
LIFO reserve	(25)	(15)
Inventories, net	$ 1,649	$ 1,286

OTHER CURRENT AND NON-CURRENT_4

OTHER CURRENT AND NON-CURRENT ASSETS (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Prepayments and other current assets:
Prepaid tooling	$ 91	$ 84
Prepaid taxes	44	64
Customer incentive payments	38	43
Prepaid engineering	29	33
Contract assets	21	16
Other	85	72
Total prepayments and other current assets	308	312
Investments and other long-term receivables:
Investment in equity affiliates	297	297
Equity securities	150	472
Other long-term receivables	66	51
Total investments and other long-term receivables	513	820
Other non-current assets:
Deferred income taxes	282	291
Operating leases	200	211
Customer incentive payments	142	166
Other	75	60
Total other non-current assets	$ 699	$ 728

ASSETS AND LIABILITIES HELD F_3

ASSETS AND LIABILITIES HELD FOR SALE - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Liabilities held for sale	$ 22	$ 0
Held-for-sale \| e-Propulsion & Drivetrain Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale	105
Goodwill	18
Liabilities held for sale	$ 22

ASSETS AND LIABILITIES HELD F_4

ASSETS AND LIABILITIES HELD FOR SALE - Schedule of assets and liabilities classified as held for sale (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Assets held for sale:
Assets held for sale	$ 105	$ 0
Liabilities held for sale:
Liabilities held for sale	22	$ 0
Held-for-sale \| e-Propulsion & Drivetrain Business
Assets held for sale:
Receivables, net	28
Inventories, net	12
Prepayments and other current assets	1
Property, plant and equipment, net	46
Goodwill	18
Assets held for sale	105
Liabilities held for sale:
Accounts payable	15
Other current liabilities	7
Liabilities held for sale	$ 22

GOODWILL AND OTHER INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLES - Goodwill (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Gross goodwill balance, December 31, 2020	$ 3,129
Accumulated impairment losses, December 31, 2020		$ (502)
Net goodwill balance, December 31, 2020	3,285	2,627
Acquisition	707
Measurement period adjustments	40
Held for sale	(18)
Other, primarily translation adjustment	(71)
Ending balance, September 30, 2021	3,285
Air Management
Goodwill [Roll Forward]
Gross goodwill balance, December 31, 2020	1,517
Accumulated impairment losses, December 31, 2020		(502)
Net goodwill balance, December 31, 2020	1,682	1,015
Acquisition	707
Measurement period adjustments	(4)
Held for sale	0
Other, primarily translation adjustment	(36)
Ending balance, September 30, 2021	1,682
e-Propulsion & Drivetrain
Goodwill [Roll Forward]
Gross goodwill balance, December 31, 2020	1,313
Accumulated impairment losses, December 31, 2020		0
Net goodwill balance, December 31, 2020	1,292	1,313
Acquisition	0
Measurement period adjustments	28
Held for sale	(18)
Other, primarily translation adjustment	(31)
Ending balance, September 30, 2021	1,292
Aftermarket
Goodwill [Roll Forward]
Gross goodwill balance, December 31, 2020	299
Accumulated impairment losses, December 31, 2020		0
Net goodwill balance, December 31, 2020	311	$ 299
Acquisition	0
Measurement period adjustments	16
Held for sale	0
Other, primarily translation adjustment	(4)
Ending balance, September 30, 2021	$ 311

GOODWILL AND OTHER INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLES - Intangible Assets (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross carrying amount	$ 1,338	$ 1,286
Amortized intangible assets, accumulated amortization	403	356
Amortized intangible assets, net carrying amount	935	930
Intangible assets, gross (excluding goodwill)	1,537	1,452
Other intangible assets, net	1,134	1,096
Unamortized trade names
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Indefinite-lived trade names	199	166
Patented and unpatented technology
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross carrying amount	445	383
Amortized intangible assets, accumulated amortization	97	77
Amortized intangible assets, net carrying amount	348	306
Customer relationships
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross carrying amount	883	893
Amortized intangible assets, accumulated amortization	299	272
Amortized intangible assets, net carrying amount	584	621
Miscellaneous
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross carrying amount	10	10
Amortized intangible assets, accumulated amortization	7	7
Amortized intangible assets, net carrying amount	$ 3	$ 3
Minimum \| Patented and unpatented technology
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Estimated Life	5 years
Minimum \| Customer relationships
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Estimated Life	7 years
Minimum \| Miscellaneous
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Estimated Life	2 years
Maximum \| Patented and unpatented technology
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Estimated Life	15 years
Maximum \| Customer relationships
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Estimated Life	15 years
Maximum \| Miscellaneous
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Estimated Life	13 years

PRODUCT WARRANTY - Narrative (D

PRODUCT WARRANTY - Narrative (Details)	9 Months Ended
PRODUCT WARRANTY - Narrative (Details)	Sep. 30, 2021
Minimum
Guarantor Obligations [Line Items]
Product warranty term	1 year
Maximum
Guarantor Obligations [Line Items]
Product warranty term	3 years

PRODUCT WARRANTY - Product Warr

PRODUCT WARRANTY - Product Warranty Accrual Accounts (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Product warranty rollforward
Beginning balance, January 1	$ 253	$ 116
Provisions for current period sales	69	36
Adjustments of prior estimates	17	14
Payments	(90)	(41)
Other, primarily translation adjustment	(2)	2
Ending balance, September 30	247	127
Other current liabilities	143		$ 164
Other non-current liabilities	104		89
Total product warranty liability	$ 247	$ 127	$ 253

NOTES PAYABLE AND DEBT - Debt O

NOTES PAYABLE AND DEBT - Debt Outstanding (Details)	Sep. 30, 2021USD ($)	Sep. 30, 2021EUR (€)	Jun. 04, 2021	May 19, 2021EUR (€)	Dec. 31, 2020USD ($)	Oct. 05, 2020	Oct. 01, 2020USD ($)
Long-term debt
Total long-term debt	$ 4,298,000,000				$ 3,742,000,000
Less: current portion	10,000,000				4,000,000
Long-term debt, net of current portion	4,288,000,000				3,738,000,000
Senior Notes
Long-term debt
Debt instrument, face amount							$ 800,000,000
Senior Notes \| 1.800% Senior notes due 11/07/22 (€500 million par value)
Long-term debt
Long-term debt	$ 0				609,000,000
Debt instrument stated interest rate	1.80%	1.80%		1.80%
Debt instrument, face amount \| €		€ 500,000,000		€ 500,000,000
Senior Notes \| 3.375% Senior notes due 03/15/25 ($500 million par value)
Long-term debt
Long-term debt	$ 498,000,000				498,000,000
Debt instrument stated interest rate	3.375%	3.375%
Debt instrument, face amount	$ 500,000,000
Senior Notes \| 5.000% Senior notes due 03/15/25 ($800 million par value)*
Long-term debt
Long-term debt	895,000,000				912,000,000
Debt instrument stated interest rate						5.00%
Debt instrument, face amount	800,000,000
Senior Notes \| 2.650% Senior notes due 07/01/27 ($1,100 million par value)
Long-term debt
Long-term debt	$ 1,090,000,000				1,088,000,000
Debt instrument stated interest rate	2.65%	2.65%
Debt instrument, face amount	$ 1,100,000,000
Senior Notes \| 7.125% Senior notes due 02/15/29 ($121 million par value)
Long-term debt
Long-term debt	$ 119,000,000				119,000,000
Debt instrument stated interest rate	7.125%	7.125%
Debt instrument, face amount	$ 121,000,000
Senior Notes \| 1.000% Senior Notes due 05/19/31 (€1,000 million par value)
Long-term debt
Long-term debt	$ 1,137,000,000				0
Debt instrument stated interest rate	1.00%	1.00%	1.00%	1.00%
Debt instrument, face amount \| €		€ 1,000,000,000		€ 1,000,000,000
Senior Notes \| 4.375% Senior notes due 03/15/45 ($500 million par value)
Long-term debt
Long-term debt	$ 494,000,000				494,000,000
Debt instrument stated interest rate	4.375%	4.375%
Debt instrument, face amount	$ 500,000,000
Term Loan \| Term loan facilities, finance leases and other
Long-term debt
Long-term debt	$ 65,000,000				$ 22,000,000

NOTES PAYABLE AND DEBT - Narrat

NOTES PAYABLE AND DEBT - Narrative (Details)	Jun. 18, 2021USD ($)	Feb. 19, 2021USD ($)	Sep. 30, 2021USD ($)	Sep. 30, 2021EUR (€)	Sep. 30, 2020USD ($)	Sep. 30, 2021EUR (€)	Jun. 04, 2021	May 19, 2021EUR (€)	Dec. 31, 2020USD ($)	Oct. 01, 2020USD ($)
Line of Credit Facility
Potential additional increase to credit facility			$ 2,000,000,000
Estimated fair value of senior unsecured notes			4,510,000,000						$ 4,052,000,000
Debt, difference between fair value and carrying value			277,000,000						332,000,000
Letters of credit outstanding, amount			35,000,000						33,000,000
Gain (Loss) on Extinguishment of Debt	$ 20,000,000		(20,000,000)		$ 0
Senior Notes
Line of Credit Facility
Debt instrument, face amount										$ 800,000,000
Short Term Borrowings
Line of Credit Facility
Short-term borrowings			$ 44,000,000						45,000,000
Delay Draw Term Loan \| Term Loan
Line of Credit Facility
Debt instrument, face amount		$ 900,000,000
Debt instrument, term		364 days
1.000% Senior Notes due 05/19/31 (€1,000 million par value) \| Senior Notes
Line of Credit Facility
Debt instrument, face amount \| €						€ 1,000,000,000		€ 1,000,000,000
Debt instrument stated interest rate			1.00%			1.00%	1.00%	1.00%
Revolving Credit Facility
Line of Credit Facility
Maximum borrowing capacity			$ 2,000,000,000
Potential additional increase to credit facility			1,000,000,000
Line of credit outstanding			0						0
Short-term, Unsecured Commercial Paper Notes
Line of Credit Facility
Line of credit outstanding			0						$ 0
Current borrowing capacity			$ 2,000,000,000
1.800% Senior notes due 11/07/22 (€500 million par value) \| Senior Notes
Line of Credit Facility
Debt instrument, face amount \| €						€ 500,000,000		€ 500,000,000
Debt instrument stated interest rate			1.80%			1.80%		1.80%
Repayment of debt \| €				€ 500,000,000

OTHER CURRENT AND NON-CURRENT_5

OTHER CURRENT AND NON-CURRENT LIABILITIES (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Other current liabilities:
Payroll and employee related	$ 321	$ 301
Customer related	247	198
Product warranties	143	164
Employee termination benefits	103	101
Income taxes payable	99	102
Indirect taxes	59	69
Accrued freight	52	41
Operating leases	48	47
Interest	31	18
Contract liabilities	23	22
Dividends payable	20	6
Insurance	19	20
Retirement related	16	16
Other	249	304
Total other current liabilities	1,430	1,409
Other non-current liabilities:
Other income tax liabilities	254	300
Deferred income taxes	240	276
Operating leases	159	172
Product warranties	104	89
Derivative instruments	78	162
Deferred income	65	55
Employee termination benefits	47	59
Other	81	68
Total other non-current liabilities	$ 1,028	$ 1,181

FAIR VALUE MEASUREMENTS (Detail

FAIR VALUE MEASUREMENTS (Details) - Valuation, Market Approach - Fair Value, Recurring - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Assets:
Investment in equity securities	$ 95	$ 432
Foreign currency contracts	15	5
Net investment hedge contracts	6
Liabilities:
Foreign currency contracts	9	6
Net investment hedge contracts	77	161
Fair Value, Inputs, Level 1
Assets:
Investment in equity securities	95	432
Foreign currency contracts	0	0
Net investment hedge contracts	0
Liabilities:
Foreign currency contracts	0	0
Net investment hedge contracts	0	0
Fair Value, Inputs, Level 2
Assets:
Investment in equity securities	0	0
Foreign currency contracts	15	5
Net investment hedge contracts	6
Liabilities:
Foreign currency contracts	9	6
Net investment hedge contracts	77	161
Fair Value, Inputs, Level 3
Assets:
Investment in equity securities	0	0
Foreign currency contracts	0	0
Net investment hedge contracts	0
Liabilities:
Foreign currency contracts	0	0
Net investment hedge contracts	$ 0	$ 0

FINANCIAL INSTRUMENTS - Narrati

FINANCIAL INSTRUMENTS - Narrative (Details) $ in Millions	9 Months Ended
FINANCIAL INSTRUMENTS - Narrative (Details) $ in Millions	Sep. 30, 2021USD ($)	Sep. 30, 2021EUR (€)	Jun. 04, 2021	May 19, 2021EUR (€)	Oct. 01, 2020USD ($)
Derivative [Line Items]
Deferred loss \| $	$ 50
Senior Notes
Derivative [Line Items]
Debt instrument, face amount \| $					$ 800
1.800% Senior notes due 11/07/22 (€500 million par value) \| Senior Notes
Derivative [Line Items]
Repayment of debt		€ 500,000,000
Debt instrument stated interest rate		1.80%		1.80%
Debt instrument, face amount		€ 500,000,000		€ 500,000,000
1.000% Senior Notes due 05/19/31 (€1,000 million par value) \| Senior Notes
Derivative [Line Items]
Debt instrument stated interest rate		1.00%	1.00%	1.00%
Debt instrument, face amount		€ 1,000,000,000		€ 1,000,000,000

FINANCIAL INSTRUMENTS - Foreign

FINANCIAL INSTRUMENTS - Foreign Currency Derivative Contract (Details) € in Millions, ₩ in Millions, ฿ in Millions, ¥ in Millions, £ in Millions, zł in Millions, $ in Millions, $ in Millions, $ in Millions

Sep. 30, 2021EUR (€)

Sep. 30, 2021USD ($)

Sep. 30, 2021PLN (zł)

Sep. 30, 2021GBP (£)

Sep. 30, 2021KRW (₩)

Sep. 30, 2021SGD ($)

Sep. 30, 2021THB (฿)

Sep. 30, 2021MXN ($)

Dec. 31, 2020EUR (€)

Dec. 31, 2020USD ($)

Dec. 31, 2020PLN (zł)

Dec. 31, 2020GBP (£)

Dec. 31, 2020KRW (₩)

Dec. 31, 2020JPY (¥)

Dec. 31, 2020THB (฿)

Dec. 31, 2020MXN ($)

British pound | Foreign currency | Maturity Period December 2022

Derivative [Line Items]

Derivative, notional amount | €

€ 80

€ 97

Chinese renminbi | Foreign currency | Maturity Period December 2022

Derivative [Line Items]

Derivative, notional amount | $

$ 51

$ 113

Chinese renminbi | Foreign currency | Maturity Period December 2021

Derivative [Line Items]

Derivative, notional amount | €

Euro | Foreign currency | Maturity Period December 2022

Derivative [Line Items]

Derivative, notional amount

zł 199

zł 147

Korean won | Foreign currency | Maturity Period December 2021

Derivative [Line Items]

Derivative, notional amount | $

US dollar

Derivative [Line Items]

Derivative, notional amount | $

$ 10

US dollar | Foreign currency | Maturity Period December 2022

Derivative [Line Items]

Derivative, notional amount

£ 10

₩ 75,014

$ 37

$ 1,251

£ 0

₩ 15,000

¥ 47

$ 1,178

US dollar | Foreign currency | Maturity Period November 2021

Derivative [Line Items]

Derivative, notional amount | €

€ 113

€ 55

US dollar | Foreign currency | Maturity Period May 2022

Derivative [Line Items]

Derivative, notional amount | ฿

฿ 1,720

฿ 0

FINANCIAL INSTRUMENTS - Cross-C

FINANCIAL INSTRUMENTS - Cross-Currency Swap Contract (Details) € in Millions, ¥ in Millions, $ in Millions	Sep. 30, 2021EUR (€)	Sep. 30, 2021USD ($)	Sep. 30, 2021JPY (¥)	Dec. 31, 2020EUR (€)	Dec. 31, 2020USD ($)	Dec. 31, 2020JPY (¥)
US dollar
Derivative [Line Items]
Derivative, notional amount		$ 10			$ 10
Cross-currency swaps \| US dollar \| Maturity Period March 2025
Derivative [Line Items]
Derivative, notional amount		500			500
Cross-currency swaps \| US dollar \| Maturity Period July 2027
Derivative [Line Items]
Derivative, notional amount		1,100			1,100
Cross-currency swaps \| US dollar \| Maturity Period Feb 2023
Derivative [Line Items]
Derivative, notional amount		$ 100			$ 100
Cross-currency swaps \| Euro \| Maturity Period March 2025
Derivative [Line Items]
Derivative, notional amount \| €	€ 450			€ 450
Cross-currency swaps \| Euro \| Maturity Period July 2027
Derivative [Line Items]
Derivative, notional amount \| €	€ 976			€ 976
Cross-currency swaps \| Japanese yen \| Maturity Period Feb 2023
Derivative [Line Items]
Derivative, notional amount \| ¥			¥ 10,978			¥ 10,978

FINANCIAL INSTRUMENTS - Balance

FINANCIAL INSTRUMENTS - Balance Sheet (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Derivatives designated as hedging instruments Under 815: \| Foreign currency \| Prepayments and other current assets
Derivatives, Fair Value
Derivative assets	$ 5	$ 1
Derivatives designated as hedging instruments Under 815: \| Foreign currency \| Other non-current assets
Derivatives, Fair Value
Derivative assets	0	0
Derivatives designated as hedging instruments Under 815: \| Foreign currency \| Other current liabilities
Derivatives, Fair Value
Derivative liability	8	4
Derivatives designated as hedging instruments Under 815: \| Foreign currency \| Other non-current liabilities
Derivatives, Fair Value
Derivative liability	1	1
Derivatives designated as hedging instruments Under 815: \| Cross-currency swaps \| Other non-current assets \| Net Investment Hedging
Derivatives, Fair Value
Derivative assets	6	0
Derivatives designated as hedging instruments Under 815: \| Cross-currency swaps \| Other non-current liabilities \| Net Investment Hedging
Derivatives, Fair Value
Derivative liability	77	161
Derivatives not designated as hedging instruments: \| Foreign currency \| Prepayments and other current assets
Derivatives, Fair Value
Derivative assets	8	4
Derivatives not designated as hedging instruments: \| Foreign currency \| Other non-current assets
Derivatives, Fair Value
Derivative assets	2	0
Derivatives not designated as hedging instruments: \| Foreign currency \| Other current liabilities
Derivatives, Fair Value
Derivative liability	0	1
Derivatives not designated as hedging instruments: \| Foreign currency \| Other non-current liabilities
Derivatives, Fair Value
Derivative liability	$ 0	$ 0

FINANCIAL INSTRUMENTS - AOCI (D

FINANCIAL INSTRUMENTS - AOCI (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Derivatives, Fair Value
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from hedges, before tax	$ (32)	$ (230)
Gain (loss) expected to be reclassified to income in one year or less	0
Foreign currency \| Net Investment Hedging
Derivatives, Fair Value
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from hedges, before tax	(7)	(1)
Gain (loss) expected to be reclassified to income in one year or less	0
Cross-currency swaps \| Net Investment Hedging
Derivatives, Fair Value
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from hedges, before tax	(71)	(161)
Gain (loss) expected to be reclassified to income in one year or less	0
Foreign currency-denominated debt \| Net Investment Hedging
Derivatives, Fair Value
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from hedges, before tax	46	$ (68)
Gain (loss) expected to be reclassified to income in one year or less	$ 0

FINANCIAL INSTRUMENTS - Income

FINANCIAL INSTRUMENTS - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss)
Net sales	$ 3,416	$ 2,534	$ 11,183	$ 6,239
Cost of sales	2,766	2,017	8,953	5,101
Selling, general and administrative expenses	343	204	1,084	601
Other comprehensive income (loss)	(73)	57	(95)	(3)
Gain (loss) on cash flow hedging relationships:
Gain (loss) recognized in other comprehensive income		1		(1)
Foreign currency
Gain (loss) on cash flow hedging relationships:
Gain (loss) recognized in other comprehensive income	(2)		(5)
Foreign currency \| Cash Flow Hedging \| Gain (loss) reclassified from AOCI to income
Derivative Instruments, Gain (Loss)
Net sales	0	0	0	0
Cost of sales	(1)	0	(2)	0
Selling, general and administrative expenses	$ 0	$ 0	$ 0	$ (1)

FINANCIAL INSTRUMENTS - Other C

FINANCIAL INSTRUMENTS - Other Comprehensive Income (Loss) (Details) - Net Investment Hedging - Other comprehensive income (loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Foreign currency
Derivative Instruments, Gain (Loss)
Gains and (losses) on derivative instruments	$ 0	$ 0	$ (6)	$ 1
Cross-currency swaps
Derivative Instruments, Gain (Loss)
Gains and (losses) on derivative instruments	43	(89)	90	(71)
Foreign currency-denominated debt
Derivative Instruments, Gain (Loss)
Gains and (losses) on derivative instruments	$ 27	$ (24)	$ 64	$ (26)

FINANCIAL INSTRUMENTS - Derivat

FINANCIAL INSTRUMENTS - Derivative Instruments Gain (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Cross-currency swaps
Derivative Instruments, Gain (Loss)
Net investment hedges	$ 6	$ 6	$ 16	$ 13

FINANCIAL INSTRUMENTS - Deriv_2

FINANCIAL INSTRUMENTS - Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Foreign currency \| Derivatives not designated as hedging instruments: \| Selling, general and administrative expenses
Derivative [Line Items]
Gain (loss) on derivatives not designated as hedges	$ 6	$ (1)	$ 11	$ 2

RETIREMENT BENEFIT PLANS - Narr

RETIREMENT BENEFIT PLANS - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021USD ($)
Defined Benefit Plan Disclosure [Line Items]
Actual contribution to defined benefit pension plans	$ 15
Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected future employer contributions, current fiscal year	15
Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected future employer contributions, current fiscal year	$ 25

RETIREMENT BENEFIT PLANS - Net

RETIREMENT BENEFIT PLANS - Net Benefit Costs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Pension benefits \| US
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	1	1	2	4
Expected return on plan assets	(2)	(2)	(7)	(7)
Amortization of unrecognized prior service credit	(1)	(1)	(1)	(1)
Amortization of unrecognized loss	2	1	3	2
Net periodic benefit (income) cost	0	(1)	(3)	(2)
Pension benefits \| Non-US
Defined Benefit Plan Disclosure [Line Items]
Service cost	6	5	19	15
Interest cost	8	2	23	7
Expected return on plan assets	(20)	(6)	(62)	(18)
Amortization of unrecognized prior service credit	0	0	0	0
Amortization of unrecognized loss	3	3	10	8
Net periodic benefit (income) cost	(3)	4	(10)	12
Other postretirement employee benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	0	0	0	1
Expected return on plan assets	0	0	0	0
Amortization of unrecognized prior service credit	(1)	(1)	(2)	(2)
Amortization of unrecognized loss	0	1	1	1
Net periodic benefit (income) cost	$ (1)	$ 0	$ (1)	$ 0

STOCKHOLDERS' EQUITY (Details)

STOCKHOLDERS' EQUITY (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			$ 6,724
Net earnings	$ 96	$ 111	408	$ 142
Net earnings attributable to noncontrolling interest, net of tax	21	18	77	40
Other comprehensive (loss) income	(73)	57	(95)	(3)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	38	192	379	182
Ending balance	7,020		7,020
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ 38	$ 192	$ 379	$ 182
Dividends declared (in dollar per share)	$ 0.17	$ 0.17	$ 0.51	$ 0.51
Issued common stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 3	$ 3	$ 3	$ 3
Ending balance	3	3	3	3
Capital in excess of par value
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	2,602	1,115	2,614	1,145
Net issuance for executive stock plan	6	5	7	(11)
Net issuance of restricted stock	9	8	(4)	(6)
Ending balance	2,617	1,128	2,617	1,128
Treasury stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(1,810)	(1,623)	(1,834)	(1,657)
Net issuance for executive stock plan			3	12
Net issuance of restricted stock			21	22
Ending balance	(1,810)	(1,623)	(1,810)	(1,623)
Retained earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	6,527	5,903	6,296	5,942
Dividends declared	(41)	(35)	(122)	(105)
Net earnings	96	111	408	142
Ending balance	6,582	5,979	6,582	5,979
Accumulated other comprehensive income (loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(673)	(787)	(651)	(727)
Other comprehensive (loss) income	(73)	57	(95)	(3)
Ending balance	(746)	(730)	(746)	(730)
Noncontrolling interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	373	152	296	138
Dividends declared	(14)	(15)	(51)	(20)
Net issuance for executive stock plan	0	0	0	0
Net issuance of restricted stock	0	0	0	0
Acquisition of AKASOL			96
Purchase of noncontrolling interest			(33)
Net earnings attributable to noncontrolling interest, net of tax	21	18	77	40
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(6)	6	(11)	3
Ending balance	374	161	374	161
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ (6)	$ 6	$ (11)	$ 3

ACCUMULATED OTHER COMPREHENSI_3

ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			$ 6,724
Comprehensive (loss) income before reclassifications	$ (49)	$ 33	(62)	$ (19)
Income taxes associated with comprehensive (loss) income before reclassifications	(27)	26	(43)	21
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	3	(3)	12	(7)
Income taxes reclassified into net earnings	(79)	(143)	(149)	(186)
Ending balance	7,020		7,020
Gain (loss) reclassified from AOCI to income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Income taxes reclassified into net earnings	0	1	(2)	2
Accumulated other comprehensive income (loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(673)	(787)	(651)	(727)
Ending balance	(746)	(730)	(746)	(730)
Foreign currency translation adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(351)	(557)	(321)	(497)
Comprehensive (loss) income before reclassifications	(55)	25	(68)	(31)
Income taxes associated with comprehensive (loss) income before reclassifications	(26)	24	(43)	20
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	0	0	0	0
Ending balance	(432)	(508)	(432)	(508)
Foreign currency translation adjustments \| Gain (loss) reclassified from AOCI to income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Income taxes reclassified into net earnings	0	0	0	0
Hedge instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(2)	(1)	0	0
Comprehensive (loss) income before reclassifications	(2)	1	(5)	(1)
Income taxes associated with comprehensive (loss) income before reclassifications	0	0	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	1	0	2	1
Ending balance	(3)	0	(3)	0
Hedge instruments \| Gain (loss) reclassified from AOCI to income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Income taxes reclassified into net earnings	0	0	0	0
Defined benefit retirement plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(320)	(229)	(330)	(230)
Comprehensive (loss) income before reclassifications	8	7	11	13
Income taxes associated with comprehensive (loss) income before reclassifications	(1)	2	0	1
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	2	(3)	10	(8)
Ending balance	(311)	(222)	(311)	(222)
Defined benefit retirement plans \| Gain (loss) reclassified from AOCI to income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Income taxes reclassified into net earnings	$ 0	$ 1	$ (2)	$ 2

CONTINGENCIES (Details)

CONTINGENCIES (Details) $ in Millions	9 Months Ended	12 Months Ended
CONTINGENCIES (Details) $ in Millions	Sep. 30, 2021USD ($)site	Dec. 31, 2020USD ($)site
Commitments and Contingencies Disclosure [Abstract]
Loss contingency accrual	$ 10
Waste disposal sites with potential liability under the comprehensive environmental response, compensation and liability act \| site	26	26
Accrual for indicated environmental liabilities	$ 6	$ 7

EARNINGS PER SHARE (Details)

EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Basic earnings per share:
Net earnings attributable to BorgWarner Inc.	$ 96	$ 111	$ 408	$ 142
Weighted average shares of common stock outstanding (in shares)	238,200,000	206,000,000	238,000,000	205,900,000
Basic earnings per share of common stock (in dollar per share)	$ 0.40	$ 0.54	$ 1.71	$ 0.69
Diluted earnings per share:
Net earnings attributable to BorgWarner Inc.	$ 96	$ 111	$ 408	$ 142
Weighted average shares of common stock outstanding (in shares)	238,200,000	206,000,000	238,000,000	205,900,000
Effect of stock-based compensation (in shares)	1,600,000	1,300,000	1,300,000	800,000
Weighted average shares of common stock outstanding including dilutive shares (in shares)	239,800,000	207,300,000	239,300,000	206,700,000
Diluted earnings per share of common stock (in dollar per share)	$ 0.40	$ 0.53	$ 1.70	$ 0.69
Antidilutive securities excluded from computation of earnings per share (in shares)	0	0	0	0
Performance Shares
Diluted earnings per share:
Antidilutive securities excluded from computation of earnings per share (in shares)	647,057	113,532	783,799	113,532

REPORTING SEGMENTS AND RELATE_3

REPORTING SEGMENTS AND RELATED INFORMATION - Narrative (Details)	9 Months Ended
	Sep. 30, 2021segment
Segment Reporting [Abstract]
Number of reportable segments	4

REPORTING SEGMENTS AND RELATE_4

REPORTING SEGMENTS AND RELATED INFORMATION - Net sales by reporting segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information
Net sales	$ 3,416	$ 2,534	$ 11,183	$ 6,239
Inter-segment eliminations
Segment Reporting Information
Net sales	(125)	(17)	(404)	(39)
Air Management
Segment Reporting Information
Net sales	1,633	1,459	5,419	3,697
Air Management \| Operating Segments
Segment Reporting Information
Net sales	1,671	1,476	5,536	3,736
e-Propulsion & Drivetrain
Segment Reporting Information
Net sales	1,184	1,075	3,897	2,542
e-Propulsion & Drivetrain \| Operating Segments
Segment Reporting Information
Net sales	1,223	1,075	4,026	2,542
Fuel Injection
Segment Reporting Information
Net sales	374	0	1,224	0
Fuel Injection \| Operating Segments
Segment Reporting Information
Net sales	420	0	1,375	0
Aftermarket
Segment Reporting Information
Net sales	225	0	643	0
Aftermarket \| Operating Segments
Segment Reporting Information
Net sales	$ 227	$ 0	$ 650	$ 0

REPORTING SEGMENTS AND RELATE_5

REPORTING SEGMENTS AND RELATED INFORMATION - Earnings before interest and income taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information
Segment Adjusted EBIT	$ 365	$ 356	$ 1,357	$ 656
Corporate, including stock-based compensation	54	39	201	114
Restructuring expense	51	20	143	72
Merger, acquisition and divestiture expense	8	16	36	58
Loss on sale	0	0	7	0
Asset impairments	0	0	0	17
Net gain on insurance recovery for property damage	(1)	(3)	(3)	(9)
Equity in affiliates’ earnings, net of tax	(12)	(3)	(40)	(10)
Unrealized loss on equity securities	61	0	337	9
Interest income	(3)	(3)	(9)	(8)
Interest expense	21	20	84	50
Other postretirement income	(10)	(2)	(33)	(5)
Earnings before income taxes and noncontrolling interest	196	272	634	368
Provision for income taxes	79	143	149	186
Net earnings	117	129	485	182
Net earnings attributable to noncontrolling interest, net of tax	21	18	77	40
Net earnings attributable to BorgWarner Inc.	96	111	408	142
Air Management
Segment Reporting Information
Segment Adjusted EBIT	214	225	813	461
e-Propulsion & Drivetrain
Segment Reporting Information
Segment Adjusted EBIT	85	131	354	195
Fuel Injection
Segment Reporting Information
Segment Adjusted EBIT	37	0	108	0
Aftermarket
Segment Reporting Information
Segment Adjusted EBIT	$ 29	$ 0	$ 82	$ 0

OPERATING CASH FLOWS AND OTHE_3

OPERATING CASH FLOWS AND OTHER SUPPLEMENTAL FINANCIAL INFORMATION (Details) - USD ($) $ in Millions	Jun. 18, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Supplemental Cash Flow Elements [Abstract]
Net earnings		$ 117	$ 129	$ 485	$ 182
Adjustments to reconcile net earnings to net cash flows from operations:
Depreciation and amortization				585	339
Restructuring expense, net of cash paid				118	49
Stock-based compensation expense				42	29
Loss on sale		0	0	7	0
Loss on debt extinguishment	$ (20)			20	0
Asset impairments		$ 0	$ 0	0	17
Deferred income tax (benefit) provision				(101)	56
Unrealized loss on equity securities				337	9
Gain on insurance recovery received for property damages				(5)	(9)
Other non-cash adjustments				(18)	(1)
Net earnings adjustments to reconcile to net cash flows from operations				1,470	671
Retirement plan contributions				(15)	(15)
Changes in assets and liabilities, excluding effects of acquisitions, divestitures and foreign currency translation adjustments:
Receivables				(45)	(25)
Inventories				(382)	3
Prepayments and other current assets				(7)	(4)
Accounts payable and accrued expenses				(231)	153
Prepaid taxes and income taxes payable				21	(2)
Other assets and liabilities				(47)	27
Net cash provided by operating activities				764	808
Cash paid during the period for:
Interest, net				93	53
Income taxes, net of refunds				271	$ 110
Non-cash investing transactions:
Period end accounts payable related to property, plant and equipment purchases				$ 105		$ 182