CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
OPERATING
Net cash provided by operating activities	$ 622	$ 327
INVESTING
Capital expenditures, including tooling outlays	(342)	(171)
Capital expenditures for damage to property, plant and equipment	(2)	0
Insurance proceeds received for damage to property, plant and equipment	0	22
Payments for businesses acquired, net of cash and restricted cash acquired	(759)	(2)
Proceeds from settlement of net investment hedges, net	11	6
Payments for investments in equity securities and other, net	(7)	(2)
Net cash used in investing activities	(1,099)	(147)
FINANCING
Net decrease in notes payable	(6)	0
Additions to debt	1,229	1,143
Payments for debt issuance costs	(10)	(10)
Repayments of debt, including current portion	(671)	(35)
Payments for stock-based compensation items	(14)	(13)
Purchase of noncontrolling interest	(33)	0
Dividends paid to BorgWarner stockholders	(81)	(70)
Dividends paid to noncontrolling stockholders	(5)	(16)
Net cash provided by financing activities	409	999
Effect of exchange rate changes on cash	(14)	(8)
Net (decrease) increase in cash, cash equivalents and restricted cash	(82)	1,171
Cash and cash equivalents at beginning of year	1,650	832
Cash, cash equivalents and restricted cash at end of period	$ 1,568	$ 2,003