CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions		Total	Issued common stock	Common stock held in treasury	Common stock held in treasury Restricted Stock	Capital in excess of par value	Retained earnings	Accumulated other comprehensive income (loss)	Noncontrolling interests
Beginning balance (shares) at Dec. 31, 2018			246,387,057
Beginning balance, common stock held in treasury (in shares) at Dec. 31, 2018				(38,172,123)
Beginning balance at Dec. 31, 2018			$ 3	$ (1,585)		$ 1,146	$ 5,336	$ (674)	$ 119
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling interest contributions									4
Dividends declared	[1]						(140)		(34)
Net issuance for executive stock plan (in shares)				199,135
Net issuance for executive stock plan				$ 7
Net issuance of restricted stock (in shares)					571,996
Net issuance of restricted stock					$ 21	(1)
Purchases of treasury stock (shares)				(2,578,522)
Purchase of treasury stock				$ (100)
Net earnings		$ 746					746		51
Other comprehensive income (loss)		(53)						(53)
Comprehensive income		742							(2)	[2]
Ending balance (shares) at Dec. 31, 2019			246,387,057
Ending Balance, common stock held in treasury (in shares) at Dec. 31, 2019				(39,979,514)
Ending balance at Dec. 31, 2019			$ 3	$ (1,657)		1,145	5,942	(727)	138
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling interest contributions									4
Dividends declared	[1]						(146)		(22)
Net issuance for executive stock plan (in shares)				297,108
Net issuance for executive stock plan				$ 12		(8)
Net issuance of restricted stock (in shares)					595,052
Net issuance of restricted stock					$ 27
Acquisition of delphi technologies (in shares)			37,188,819	197,811
Acquisition of Delphi Technologies						1,477			89
Purchases of treasury stock (shares)				(5,755,630)
Purchase of treasury stock				$ (216)
Net earnings		500					500		67
Other comprehensive income (loss)		76						76
Comprehensive income		663							20	[2]
Ending balance (shares) at Dec. 31, 2020			283,575,876
Ending Balance, common stock held in treasury (in shares) at Dec. 31, 2020				(44,645,173)
Ending balance at Dec. 31, 2020		6,724	$ 3	$ (1,834)		2,614	6,296	(651)	296
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared	[1]						(162)		(84)
Net issuance for executive stock plan (in shares)				89,787
Net issuance for executive stock plan				$ 2		19
Net issuance of restricted stock (in shares)					756,402
Net issuance of restricted stock					$ 20	5
Acquisition of AKASOL									96
Purchase and reclass of noncontrolling interest						(1)			(90)
Net earnings		537					537		102
Other comprehensive income (loss)		100						100
Comprehensive income		733							(6)
Ending balance (shares) at Dec. 31, 2021			283,575,876
Ending Balance, common stock held in treasury (in shares) at Dec. 31, 2021				(43,798,984)
Ending balance at Dec. 31, 2021		$ 7,262	$ 3	$ (1,812)		$ 2,637	$ 6,671	$ (551)	$ 314

[1] Dividends declared relate to BorgWarner common stock.

[2] Net of income taxes.