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Debt and Other Financing (Maturities of Long-Term Debt) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Debt Instruments [Abstract]  
Maturities, 2012 $ 16.9
Maturities, 2013 384.8
Maturities, 2014 509.1
Maturities, 2015 148.5
Maturities, 2016 5.9
Maturities, After 2017 1,272.3
Total Maturities $ 2,337.5