Other Expense, Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Nov. 10, 2015	Jan. 29, 2015
Asset impairment expense	$ 106.5	$ 0.0	$ 106.5	$ 0.0
Restructuring expense	1.3	9.3	26.9	41.3
Merger and acquisition expense	5.9	3.9	18.9	3.9
Gain on previously held equity interest	0.0	0.0	0.0	(10.8)
Other income	(2.6)	(0.1)	(4.5)	(1.0)
Other expense, net	$ 111.1	$ 13.1	$ 147.8	$ 33.4
Remy International Inc.
Equity interest acquired					100.00%
BERU Diesel Start Systems Pvt. Ltd.
Equity interest acquired						51.00%