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Other Financial Data - Schedule of Other Current Liabilities (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Other Financial Data [Abstract] |  |  |  |  |
Deferred revenue | $ 251 |  | $ 251 |  | $ 270
Taxes payable | 134 |  | 134 |  | 93
Leases | 224 |  | 224 |  | 210
Other | 632 |  | 632 |  | 513
Total | 1,241 |  | 1,241 |  | $ 1,086
Revenue recognized from deferred revenue | $ 69 | $ 144 | $ 357 | $ 385 |

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