Goodwill and Other Intangibles - Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016		Dec. 31, 2015	Dec. 31, 2014
Changes in the carrying amount of goodwill
Net goodwill balance, January 1	$ 1,757.7
Ending balance, December 31	$ 1,702.2		$ 1,757.7
Goodwill impairment test, weighted average cost of capital discount rate for future cash flow	10.00%
Sensitivity analysis Increase in discount rate	1.00%
Sensitivity analysis decrease in operating margin assumption	1.00%
Engine [Member]
Changes in the carrying amount of goodwill
Gross goodwill balance, January 1	$ 1,338.2		1,362.0
Accumulated impairment losses, January 1			(501.8)	$ (501.8)
Net goodwill balance, January 1	836.4		860.2
Acquisitions	0.0	[1]	11.6
Translation adjustment and other	(14.2)		(35.4)
Ending balance, December 31	822.2		836.4
Drivetrain [Member]
Changes in the carrying amount of goodwill
Gross goodwill balance, January 1	921.5		345.7
Accumulated impairment losses, January 1			(0.2)	$ (0.2)
Net goodwill balance, January 1	921.3		345.5
Acquisitions	(12.1)		584.7
Divestitures	(24.2)
Translation adjustment and other	(5.0)		(8.9)
Ending balance, December 31	$ 880.0		$ 921.3

[1] *Acquisitions relate to the Company's 2015 purchases of Remy and BERU Diesel and fair value adjustments in 2016 based on new information obtained during the measurement period for Remy acquisition.** Divestitures relate to the Company's 2016 disposition of Remy light vehicle aftermarket business and Divgi-Warner Private Limited. .