CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
OPERATING ACTIVITIES OF CONTINUING OPERATIONS
Net cash (used in) provided by operating activities of continuing operations (see Note 23)	$ (118)	$ 59
INVESTING ACTIVITIES OF CONTINUING OPERATIONS
Capital expenditures, including tooling outlays	(190)	(239)
Payments for businesses acquired, net of cash acquired	0	(19)
Proceeds from settlement of net investment hedges, net	12	13
Proceeds from the sale of business, net	3	0
Proceeds from asset disposals and other, net	0	1
Net cash used in investing activities from continuing operations	(175)	(244)
FINANCING ACTIVITIES OF CONTINUING OPERATIONS
Additions to debt	0	1
Repayments of debt, including current portion	(12)	(2)
Payments for purchase of treasury stock	(100)	0
Payments for stock-based compensation items	(23)	(25)
Dividends paid to BorgWarner stockholders	(25)	(39)
Dividends paid to noncontrolling stockholders	(23)	(25)
Net cash used in financing activities from continuing operations	(183)	(90)
CASH FLOWS FROM DISCONTINUED OPERATIONS
Operating activities of discontinued operations	(10)	(71)
Investing activities of discontinued operations	0	(38)
Net cash used in discontinued operations	(10)	(109)
Effect of exchange rate changes on cash	(11)	(4)
Net decrease in cash, cash equivalents and restricted cash	(497)	(388)
Cash, cash equivalents and restricted cash at beginning of year	1,534	1,338
Cash, cash equivalents and restricted cash at end of period	1,037	950
Less: Cash, cash equivalents and restricted cash of discontinued operations at end of period	0	181
Cash, cash equivalents and restricted cash of continuing operations at end of period	$ 1,037	$ 769