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Other Financial Data - Schedule of Other Non-current Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Other Financial Data [Abstract] |  |
Taxes payable | $ 561 | $ 525
Leases | 65 | 76
Compensation and benefits | 53 | 49
Deferred revenue | 76 | 62
Other | 140 | 165
Other non-current liabilities | 895 | 877
Transition tax for accumulated foreign earnings, noncurrent | $ 145 | $ 145

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