CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net sales	$ 3,595	$ 3,383
Cost of sales	2,951	2,806
Gross profit	644	577
Selling, general and administrative expenses	329	299
Restructuring expense	19	3
Other operating expense, net	1	1
Operating income	295	274
Equity in affiliates’ earnings, net of tax	(5)	(1)
Unrealized loss on debt and equity securities	2	15
Interest expense, net	5	10
Other postretirement expense	3	2
Earnings from continuing operations before income taxes and noncontrolling interest	290	248
Provision for income taxes	62	67
Net earnings from continuing operations	228	181
Net (loss) earnings from discontinued operations	(7)	49
Net earnings	221	230
Net earnings from continuing operations attributable to noncontrolling interest	15	13
Net earnings attributable to BorgWarner Inc.	206	217
Amounts attributable to BorgWarner Inc.:
Net earnings from continuing operations	$ 213	$ 168
Basic earnings per share:
Earnings per share from continuing operations — basic (in dollar per share)	$ 0.94	$ 0.72
Earnings per share from discontinued operations — basic (in dollar per share)	(0.03)	0.21
Earnings per share attributable to BorgWarner Inc. — basic (in dollar per share)	0.91	0.93
Diluted earnings per share:
Earnings per share from continuing operations — diluted (in dollar per share)	0.93	0.72
Earnings per share from discontinued operations — diluted (in dollar per share)	(0.03)	0.21
Earnings per share attributable to BorgWarner Inc. — diluted (in dollar per share)	$ 0.90	$ 0.93
Weighted average shares outstanding:
Basic (in shares)	227.7	232.8
Diluted (in shares)	228.3	234.4
Discontinued operations | Phinia
Amounts attributable to BorgWarner Inc.:
Net (loss) earnings from discontinued operations	$ (7)	$ 49