Income Taxes Schedule of Income Tax Expense (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
Federal	$ (2.5)	$ 6.0	$ 2.8
State and local	1.2	1.9	0.7
Foreign	70.0	79.2	36.2
Total current	68.7	87.1	39.7
Deferred:
Federal	112.6	99.0	99.2
State and local	16.9	11.9	(7.4)
Foreign	10.6	0.3	105.5
Total deferred	140.1	111.2	197.3
Income tax expense	$ 208.8	$ 198.3	$ 237.0