CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net sales	$ 3,449	$ 3,622	$ 10,647	$ 10,676
Cost of sales	2,813	2,970	8,682	8,767
Gross profit	636	652	1,965	1,909
Selling, general and administrative expenses	340	330	1,010	963
Restructuring expense	21	56	65	68
Other operating expense (income), net	5	(6)	28	(1)
Operating income	270	272	862	879
Equity in affiliates’ earnings, net of tax	(6)	(10)	(23)	(23)
Unrealized and realized (gain) loss on equity and debt securities	(2)	60	0	129
Interest expense (income), net	4	(19)	17	3
Other postretirement expense	4	3	10	8
Earnings from continuing operations before income taxes and noncontrolling interest	270	238	858	762
Provision for income taxes	13	133	44	230
Net earnings from continuing operations	257	105	814	532
Net loss from discontinued operations	(8)	(37)	(27)	(12)
Net earnings	249	68	787	520
Net earnings from continuing operations attributable to noncontrolling interest	15	18	44	49
Net earnings attributable to BorgWarner Inc.	234	50	743	471
Amounts attributable to BorgWarner Inc.:
Net earnings from continuing operations	$ 242	$ 87	$ 770	$ 483
Basic earnings per share:
Earnings per share from continuing operations — basic (in dollar per share)	$ 1.08	$ 0.37	$ 3.41	$ 2.07
Loss per share from discontinued operations — basic (in dollar per share)	(0.04)	(0.16)	(0.12)	(0.05)
Earnings per share attributable to BorgWarner Inc. — basic (in dollar per share)	1.04	0.21	3.29	2.02
Diluted earnings per share:
Earnings per share from continuing operations — diluted (in dollar per share)	1.08	0.37	3.40	2.06
Loss per share from discontinued operations — diluted (in dollar per share)	(0.04)	(0.16)	(0.12)	(0.05)
Earnings per share attributable to BorgWarner Inc. — diluted (in dollar per share)	$ 1.04	$ 0.21	$ 3.28	$ 2.01
Weighted average shares outstanding:
Basic (in shares)	223.1	233.4	225.7	233.2
Diluted (in shares)	224.5	235.3	226.8	234.6
Discontinued operations | Phinia
Amounts attributable to BorgWarner Inc.:
Net loss from discontinued operations	$ (8)	$ (37)	$ (27)	$ (12)