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Other Financial Data - Schedule of Other Non-Current Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
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Other Financial Data [Abstract] |  |
Taxes payable | $ 288 | $ 223
Leases | 169 | 166
Deferred revenue | 140 | 159
Compensation and benefits | 56 | 59
Other | 191 | 162
Total Other Non-Current Liabilities | $ 844 | $ 769

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