Annual report pursuant to Section 13 and 15(d)

Accrued Liabilities (Details)

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Accrued Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Accrued Liabilities [Abstract]    
Accounts payable non-trade $ 279 $ 215
Income taxes 128 120
Accrued compensation and benefits 119 92
Allowance for sales returns 96 93
Sales and other taxes 71 62
Deferred revenue 58 69
Accrued interest 58 58
Other 63 60
Accrued liabilities $ 872 $ 769