Income Taxes Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Taxes [Abstract]
Effective Income Tax Rate, Continuing Operations	36.70%	53.90%	37.10%	45.10%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%
Unrecognized Tax Benefits	$ 192.6		$ 192.6
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 49.5		49.5
Unrecognized tax benefits, reduction of accrued interest			$ 1.9