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Other Long-Term Assets, Net - Schedule of Long-term Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Other Long-Term Assets, Net      
Intangible assets $ 603 $ 610  
Fair value of derivative instruments 1 9  
Other 47 94  
Other long-term assets, gross 651 713  
Accumulated amortization (361) (327)  
Other long-term assets, net 290 386  
Amortization expense for finite-lived intangible assets $ 44 $ 49 $ 57