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Derivative Financial Instruments (Schedule of Offsetting Assets) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Derivative Asset [Abstract]    
Gross amount recognized $ 1 $ 2
Gross amount offset in the consolidated balance sheets 0 0
Net amount presented in the consolidated balance sheets 1 2
Gross amount not offset in the consolidated balance sheets 1 2
Net amount $ 0 $ 0