BorgWarner Inc. and Consolidated Subsidiaries Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net sales	$ 9,071.0	$ 8,023.2	$ 8,305.1
Cost of sales	7,137.9	6,320.1	6,548.7
Gross profit	1,933.1	1,703.1	1,756.4
Selling, general and administrative expenses	817.5	662.0	698.9
Other expense, net	889.7	101.4	93.8
Operating income	225.9	939.7	963.7
Equity in affiliates’ earnings, net of tax	(42.9)	(40.0)	(47.3)
Interest income	(6.3)	(7.5)	(5.5)
Interest expense and finance charges	84.6	60.4	36.4
Earnings before income taxes and noncontrolling interest	190.5	926.8	980.1
Provision for income taxes	30.3	280.4	292.6
Net earnings	160.2	646.4	687.5
Net earnings attributable to the noncontrolling interest, net of tax	41.7	36.7	31.7
Net earnings attributable to BorgWarner Inc.	$ 118.5	$ 609.7	$ 655.8
Earnings per share — basic	$ 0.55	$ 2.72	$ 2.89
Earnings per share — diluted	$ 0.55	$ 2.70	$ 2.86
Weighted average shares outstanding (thousands):
Basic	214,374	224,414	227,150
Diluted	215,328	225,648	228,924
Dividends declared per share	$ 0.53	$ 0.52	$ 0.51