Income Taxes Level 4 (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013	Mar. 31, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Jun. 30, 2012
Income Tax Contingency [Line Items]
Effective Income Tax Rate, Continuing Operations	40.30%		34.60%	38.50%	35.80%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority						$ 6.6
Increase (Decrease) in Income Taxes		3.1
Unrecognized Tax Benefits	132.5			132.5
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	43.8			43.8
Unrecognized Tax Benefits, Period Increase (Decrease)				11.5
Unrecognized tax benefits, reduction of accrued interest				$ 2.2