Income Taxes Provision for taxes (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current:
Federal	$ 24.5	$ (167.6)	$ (41.7)
State	1.8	14.9	(15.9)
Non-U.S.	147.2	31.0	94.9
Total current	173.5	(121.7)	37.3
Deferred:
Federal	(105.1)	602.3	(147.9)
State	9.9	(39.9)	3.9
Non-U.S.	(1.2)	54.2	32.5
Total deferred	(96.4)	616.6	(111.5)
(Benefit from) provision for income taxes	$ 77.1	$ 494.9	$ (74.2)