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Other Financial Data - Schedule of Other Non-current Liabilities (Details) - USD ($) $ in Millions | Jun. 30, 2017 | Dec. 31, 2016
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Other Financial Data [Abstract] |  |
Taxes payable | $ 326 | $ 288
Deferred revenue | 46 | 49
Leases | 140 | 136
Compensation and benefits | 59 | 56
Other | 287 | 190
Total | $ 858 | $ 719

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