Income Taxes (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current:
U.S. federal	$ 116.8	$ 103.4	$ 113.9
Non-U.S.	127.6	58.9	78.8
State	12.2	12.2	1.0
Total current	256.6	174.5	193.7
Deferred:
U.S. federal	(32.7)	138.0	46.3
Non-U.S.	28.8	42.8	68.1
State	9.6	7.9	5.6
Total deferred	5.7	188.7	120.0
Total provision	$ 262.3	$ 363.2	$ 313.7