BorgWarner Inc. and Consolidated Subsidiaries Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
OPERATING
Net earnings	$ 797	$ 985	$ 483
Adjustments to reconcile net earnings to net cash flows from operations:
Depreciation and amortization	439	431	408
Deferred income tax (benefit) provision	186	(57)	42
Stock-based compensation expense	42	53	52
Restructuring expense, net of cash paid	30	33	27
Pension settlement loss	27	0	0
Tax reform adjustments to provision for income taxes	16	(13)	274
Asset impairment and loss on divestiture	7	26	71
Gain on derecognition of subsidiary	(177)	0	0
Equity in affiliates’ earnings, net of dividends received, and other		(12)	(32)
Net earnings adjusted for non-cash charges to operations	1,367	1,446	1,325
Derecognition of subsidiary	(172)	0	0
Changes in assets and liabilities:
Receivables	19	(43)	(168)
Inventories	(36)	(53)	(85)
Prepayments and other current assets	(18)	(19)	1
Accounts payable and accrued expenses	(123)	(76)	233
Prepaid taxes and income taxes payable	(8)	(85)	(43)
Other assets and liabilities	(21)	(44)	(83)
Net cash provided by operating activities	1,008	1,126	1,180
INVESTING
Capital expenditures, including tooling outlays	(481)	(546)	(560)
Payments for investments in equity securities	(53)	(6)	(3)
Payments for businesses acquired, including restricted cash, net of cash acquired	(10)	0	(186)
Proceeds from sale of businesses, net of cash divested	24	0	0
Proceeds from (payments for) settlement of net investment hedges	22	2	(8)
Proceeds from asset disposals and other	9	36	5
Net cash used in investing activities	(489)	(514)	(752)
FINANCING
Net decrease in notes payable	0	(34)	(88)
Additions to debt, net of debt issuance costs	63	59	3
Repayments of long term debt, including current portion	(204)	(66)	(20)
Payments for debt issuance cost	0	0	(2)
Payments for purchase of treasury stock	(100)	(150)	(100)
Payments for stock-based compensation items	(15)	(15)	(2)
Capital contribution from noncontrolling interest	4	0	0
Dividends paid to BorgWarner stockholders	(140)	(142)	(124)
Dividends paid to noncontrolling stockholders	(28)	(35)	(30)
Net cash used in financing activities	(420)	(383)	(363)
Effect of exchange rate changes on cash	(6)	(35)	36
Net increase in cash and cash equivalents	93	194	101
Cash and restricted cash at beginning of period	739	545	444
Cash and restricted cash at end of period	832	739	545
Net Cash Paid During Period For [Abstract]
Interest	72	84	92
Income taxes, net of refunds	243	316	280
Non Cash Investing Transactions [Abstract]
Liabilities assumed from business acquired	$ 0	$ 0	$ 18