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Schedule of Other Current Assets (Detail) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
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Disclosure Schedule Of Other Current Assets [Abstract] |  |
Prepaid expenses | $ 234 | $ 241
Sales and use tax | 173 | 180
Other | 141 | 183
Total other current assets | $ 548 | $ 604

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