Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Fixed Exchange Ratio

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Debt Instrument, Redemption Price, Redeemable Principal Amount

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount paid or received to resolve the preacquisition contingency.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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The amount of financial liabilities assumed (as defined) which have been recognized as of the acquisition date.

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Face amount or stated value per share of common stock.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Percentage of principal amount of debt redeemed.

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No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

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No definition available.

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Amount of investment in equity security without readily determinable fair value.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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No definition available.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Amount of unrealized gain (loss) on investment.

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ACQUISITIONS - Narrative (Details) $ / shares in Units, $ in Millions			1 Months Ended	3 Months Ended				9 Months Ended
	Oct. 05, 2020 USD ($)	Oct. 01, 2020 USD ($) $ / shares	Sep. 30, 2019 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2021 USD ($) segment	Sep. 30, 2021 EUR (€) segment	Sep. 30, 2020 USD ($)	Sep. 30, 2021 EUR (€)	Aug. 02, 2021	Jun. 04, 2021 USD ($)	Jun. 04, 2021 EUR (€)	May 19, 2021 EUR (€)	Dec. 29, 2020	May 31, 2019 USD ($)
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