Income Taxes (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Current
U.S. federal	$ 103.4	$ 113.9	$ (0.7)
Non U.S.	58.9	78.8	50.0
State	12.2	1.0	1.7
Total current	174.5	193.7	51.0
Deferred
U.S. Federal	138.0	47.9	56.0
Non U.S.	42.8	68.1	78.5
State	7.9	5.7	0.7
Total deferred	188.7	121.7	135.2
Total provision	$ 363.2	$ 315.4	$ 186.2