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Other Income, Net Table (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Other Income and Expenses [Abstract]        
Interest income $ 0 $ 1 $ 1 $ 2
Loss on extinguishment of debt 0 0 0 (52)
Costs associated with acquisitions 0 (1) 0 (1)
Other, net (2) (2) 1 (5)
Other income (expense), net $ (2) $ (2) $ 2 $ (56)