CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net earnings attributable to BorgWarner Inc.		$ 273	$ 96	$ 689	$ 408
Other comprehensive (loss) income
Foreign currency translation adjustments	[1]	(274)	(81)	(554)	(111)
Hedge instruments	[1]	8	(1)	13	(3)
Defined benefit postretirement plans	[1]	4	9	14	19
Total other comprehensive loss attributable to BorgWarner Inc.		(262)	(73)	(527)	(95)
Comprehensive income attributable to BorgWarner Inc.*	[1]	11	23	162	313
Net earnings attributable to noncontrolling interest, net of tax		19	21	58	77
Other comprehensive loss attributable to noncontrolling interest	[1]	(24)	(6)	(42)	(11)
Comprehensive income		$ 6	$ 38	$ 178	$ 379

[1] Net of income taxes.