Reporting Segments and Related Information (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

2019 Segment information
	Net sales								Year-end assets		Depreciation/ amortization		Long-lived asset expenditures (a)
(in millions)	Customers		Inter-segment			Net
Engine	$	6,153	$	61		$	6,214		$	4,536	$	227	$	219
Drivetrain	4,015		—			4,015			4,075		183		254
Inter-segment eliminations	—		(61		)	(61		)	—		—		—
Total	10,168		—			10,168			8,611		410		473
Corporate (b)	—		—			—			1,091		29		8
Consolidated	$	10,168	$	—		$	10,168		$	9,702	$	439	$	481

2018 Segment information
	Net sales								Year-end assets		Depreciation/ amortization		Long-lived asset expenditures (a)
(in millions)	Customers		Inter-segment			Net
Engine	$	6,390	$	57		$	6,447		$	4,731	$	226	$	278
Drivetrain	4,140		—			4,140			3,920		175		254
Inter-segment eliminations	—		(57		)	(57		)	—		—		—
Total	10,530		—			10,530			8,651		401		532
Corporate (b)	—		—			—			1,444		30		14
Consolidated	$	10,530	$	—		$	10,530		$	10,095	$	431	$	546

2017 Segment information
	Net sales								Year-end assets		Depreciation/ amortization		Long-lived asset expenditures (a)
(in millions)	Customers		Inter-segment			Net
Engine	$	6,009	$	53		$	6,062		$	4,733	$	219	$	305
Drivetrain	3,790		—			3,790			3,904		161		242
Inter-segment eliminations	—		(53		)	(53		)	—		—		—
Total	9,799		—			9,799			8,637		380		547
Corporate (b)	—		—			—			1,151		28		13
Consolidated	$	9,799	$	—		$	9,799		$	9,788	$	408	$	560

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(a) Long-lived asset expenditures include capital expenditures and tooling outlays.

(b) Corporate assets include investments and other long-term receivables and deferred income taxes.

Adjusted earnings before interest, income taxes and noncontrolling interest ("Adjusted EBIT")

	Year Ended December 31,
(in millions)	2019			2018			2017
Engine	$	995		$	1,040		$	992
Drivetrain	443			475			448
Adjusted EBIT	1,438			1,515			1,440
Gain on derecognition of subsidiary	(177		)	—			—
Restructuring expense	72			67			58
Unfavorable arbitration loss	14			—			—
Merger, acquisition and divestiture expense	11			6			10
Asset impairment and loss on divestiture	7			25			71
Officer stock awards modification	2			8			—
Asbestos-related adjustments	—			23			—
Gain on sale of building	—			(19		)	—
Lease termination settlement	—			—			5
Other (income) expense	—			(4		)	2
Corporate, including stock-based compensation	206			219			222
Equity in affiliates' earnings, net of tax	(32		)	(49		)	(51		)
Interest income	(12		)	(6		)	(6		)
Interest expense	55			59			71
Other postretirement expense (income)	27			(10		)	(5		)
Earnings before income taxes and noncontrolling interest	1,265			1,196			1,063
Provision for income taxes	468			211			580
Net earnings	797			985			483
Net earnings attributable to the noncontrolling interest, net of tax	51			54			43
Net earnings attributable to BorgWarner Inc.	$	746		$	931		$	440

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

	Net sales						Long-lived assets
(in millions)	2019		2018		2017		2019		2018		2017
United States	$	2,335	$	2,394	$	2,280	$	752	$	729	$	719
Europe:
Germany	1,507		1,665		1,653		328		371		413
Poland	627		519		522		180		171		152
Hungary	589		687		656		164		153		148
Other Europe	1,087		1,151		904		285		282		274
Total Europe	3,810		4,022		3,735		957		977		987
China	1,711		1,801		1,560		605		589		555
Mexico	1,040		978		920		247		223		201
South Korea	786		859		877		221		235		244
Other foreign	486		476		427		152		151		158
Total	$	10,168	$	10,530	$	9,799	$	2,934	$	2,904	$	2,864