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Derivative Financial Instruments (Schedule of Offsetting Liabilities) (Details) - USD ($)
$ in Millions
Jun. 30, 2016
Dec. 31, 2015
Derivative Liabilities [Abstract]    
Gross amount recognized $ 3 $ 2
Gross amount offset in the consolidated balance sheets 0 0
Net amount presented in the consolidated balance sheets 3 2
Gross amount not offset in the consolidated balance sheets 2 0
Net amount $ 1 $ 2