Reporting Segments (Tables)

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Net Sales by Reporting Segment

	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2017			2016			2017			2016
Engine	$	1,481.8		$	1,444.2		$	2,977.2		$	2,843.4
Drivetrain	921.0			895.4			1,845.9			1,774.6
Inter-segment eliminations	(13.1		)	(10.4		)	(26.4		)	(20.2		)
Net sales	$	2,389.7		$	2,329.2		$	4,796.7		$	4,597.8

Segment Earnings Before Interest and Income Taxes

	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2017			2016			2017			2016
Engine	$	244.3		$	238.1		$	491.3		$	474.8
Drivetrain	109.6			95.3			214.4			181.6
Adjusted EBIT	353.9			333.4			705.7			656.4
Lease termination settlement	—			—			5.3			—
Merger and acquisition expense	—			7.2			—			13.0
Restructuring expense	—			19.2			—			25.6
Contract expiration gain	—			(7.5		)	—			(7.5		)
Corporate, including equity in affiliates' earnings and stock-based compensation	40.0			35.0			84.1			72.5
Interest income	(1.4		)	(1.5		)	(2.9		)	(3.1		)
Interest expense and finance charges	18.0			21.4			36.0			42.7
Earnings before income taxes and noncontrolling interest	297.3			259.6			583.2			513.2
Provision for income taxes	76.2			84.2			162.5			164.6
Net earnings	221.1			175.4			420.7			348.6
Net earnings attributable to the noncontrolling interest, net of tax	9.1			11.0			19.5			20.1
Net earnings attributable to BorgWarner Inc.	$	212.0		$	164.4		$	401.2		$	328.5

Segment assets

	June 30,		December 31,
(in millions)	2017		2016
Engine	$	4,429.6	$	4,134.6
Drivetrain	3,408.6		3,212.4
Total	7,838.2		7,347.0
Corporate *	1,450.3		1,487.7
Total assets	$	9,288.5	$	8,834.7

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*    Corporate assets include investments and other long-term receivables and certain deferred income taxes.