Quarterly report pursuant to Section 13 or 15(d)

Hedging Activities (Narrative) (Details)

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Hedging Activities (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
financial_institution
Mar. 31, 2013
financial_institution
General Discussion of Derivative Instruments and Hedging Activities [Abstract]    
Number of financial institutions 4 4
Gain on fair value hedge ineffectiveness, net $ (8.7) $ (0.2)