Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings before income taxes and the provision for income taxes
Earnings before income taxes - U.S.									$ (724.7)	$ 125.6	$ 218.8
Earnings before income taxes - Non-U.S.									915.2	801.2	761.3
Earnings before income taxes and noncontrolling interest	$ (464.6)	$ 141.9	$ 259.6	$ 253.6	$ 196.6	$ 232.8	$ 237.6	$ 259.8	190.5	926.8	980.1
Current:
Federal									37.4	32.5	25.7
State									6.1	(4.3)	3.9
Foreign									251.7	228.3	220.8
Total current									295.2	256.5	250.4
Deferred:
Federal									(239.8)	31.8	66.2
State									(13.2)	2.6	(1.2)
Foreign									(11.9)	(10.5)	(22.8)
Total deferred									(264.9)	23.9	42.2
Provision for income taxes	$ (183.1)	$ 48.8	$ 84.2	$ 80.4	$ 61.2	$ 66.9	$ 80.2	$ 72.1	$ 30.3	$ 280.4	$ 292.6
Effective tax rate									15.90%	30.30%	29.90%