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Other Financial Data - Schedule of Other Current Liabilities (Details) - USD ($) $ in Millions | Mar. 31, 2017 | Dec. 31, 2016
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Other Financial Data [Abstract] |  |
Deferred revenue | $ 338 | $ 199
Taxes payable | 57 | 77
Other | 378 | 380
Total | $ 773 | $ 656

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