Reporting Segments (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Net Sales by Reporting Segment

Net Sales by Reporting Segment

	Three Months Ended March 31,
(millions of dollars)	2014			2013
Engine	$	1,412.1		$	1,257.5
Drivetrain	680.7			601.4
Inter-segment eliminations	(8.7		)	(7.8		)
Net sales	$	2,084.1		$	1,851.1

Segment Earnings Before Interest and Income Taxes

Adjusted Earnings Before Interest, Income Taxes and Noncontrolling Interest (“Adjusted EBIT”)

	Three Months Ended March 31,
(millions of dollars)	2014			2013
Engine	$	231.7		$	202.3
Drivetrain	80.5			56.0
Adjusted EBIT	312.2			258.3
Restructuring expense	39.5			—
Program termination agreement	—			11.3
Retirement related obligations	—			5.9
Corporate, including equity in affiliates' earnings and stock-based compensation	30.7			32.9
Interest income	(1.5		)	(1.0		)
Interest expense and finance charges	8.2			9.7
Earnings before income taxes and noncontrolling interest	235.3			199.5
Provision for income taxes	68.1			50.9
Net earnings	167.2			148.6
Net earnings attributable to the noncontrolling interest, net of tax	8.1			6.6
Net earnings attributable to BorgWarner Inc.	$	159.1		$	142.0

Segment assets

Total Assets

(millions of dollars)	March 31, 2014		December 31, 2013
Engine	$	4,002.5	$	3,519.1
Drivetrain	1,863.8		1,786.6
Total	5,866.3		5,305.7
Corporate (a)	1,491.5		1,611.3
Total assets	$	7,357.8	$	6,917.0

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(a) Corporate assets include investments and advances and deferred income taxes.