Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Taxes [Abstract]
Effective Income Tax Rate, Continuing Operations	35.40%	37.50%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	0.00%
Unrecognized Tax Benefits	$ 136.9
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	45.3
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	$ 0.7