CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net sales	$ 15,801	$ 14,838	$ 10,165
Cost of sales	12,700	11,983	8,255
Gross profit	3,101	2,855	1,910
Selling, general and administrative expenses	1,610	1,460	951
Restructuring expense	59	163	203
Other operating expense, net	58	81	138
Operating income	1,374	1,151	618
Equity in affiliates’ earnings, net of tax	(38)	(48)	(18)
Unrealized loss (gain) on debt and equity securities	(73)	(362)	382
Interest expense, net	52	93	61
Other postretirement income	(31)	(45)	(7)
Earnings before income taxes and noncontrolling interest	1,318	789	964
Provision for income taxes	292	150	397
Net earnings	1,026	639	567
Net earnings attributable to the noncontrolling interest, net of tax	82	102	67
Net earnings attributable to BorgWarner Inc.	$ 944	$ 537	$ 500
Earnings per share attributable to BorgWarner Inc. — basic (in dollar per share)	$ 4.01	$ 2.25	$ 2.35
Earnings per share attributable to BorgWarner Inc. — diluted (in dollar per share)	$ 3.99	$ 2.24	$ 2.34
Weighted average shares outstanding:
Basic (in shares)	235.5	238.1	213.0
Diluted (in shares)	236.8	239.5	214.0