CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net earnings		$ 944	$ 537	$ 500
Other comprehensive (loss) income
Foreign currency translation adjustments	[1]	(327)	(102)	176
Hedge instruments	[1]	4	0	0
Defined benefit postretirement plans	[1]	(2)	202	(100)
Total other comprehensive (loss) income attributable to BorgWarner Inc.		(325)	100	76
Comprehensive income attributable to BorgWarner Inc	[1]	619	637	576
Net earnings attributable to noncontrolling interest, net of tax		82	102	67
Other comprehensive (loss) income attributable to the noncontrolling interest	[1]	(24)	(6)	20
Comprehensive income		$ 677	$ 733	$ 663

[1] Net of income taxes.