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		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Other Operating expenses	$ (732.0)	$ (735.0)	$ (1,460.0)	$ (1,426.0)
Other operating expenses net income effect			0	0
Gain On Swaps [Member]
Other Operating expenses			0	4.7
Loss On Notes [Member]
Other Operating expenses			$ 0	$ (4.7)