Derivatives (Fair Value Hedges) (Details) - Interest Expense, Net [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest Rate Swaps [Member]
Amount of gain (loss) recognized in income	$ (12.1)	$ 8.2	$ (0.9)	$ 13.5
Fixed Rate Debt [Member]
Amount of gain (loss) recognized in income	$ 12.1	$ (8.2)	$ 0.9	$ (13.5)