Debt (Gain Or Loss On The Hedged Item And Offsetting Gain Or Loss On Interest Rate Swaps) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Other Operating expenses	$ (707.0)	$ (743.0)	$ (2,167.0)	$ (2,169.0)
Other operating expenses net income effect			0	0
Gain On Swaps [Member]
Other Operating expenses			(1.0)	7.0
Loss On Notes [Member]
Other Operating expenses			$ 1.0	$ 7.0