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Other Financial Data - Schedule of Other Non-Current Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Jan. 01, 2018 | Dec. 31, 2017
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Other Financial Data [Abstract] |  |  |
Taxes payable | $ 585 |  | $ 529
Leases | 169 |  | 153
Compensation and benefits | 56 |  | 67
Deferred revenue | 65 |  | 49
Other | 222 |  | 304
Total other non-current liabilities | 1,097 | $ 1,099 | 1,102
Transition tax for accumulated foreign earnings, noncurrent | $ 240 |  | $ 222

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