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v3.20.2

Supplemental Financial Information (Detail) - USD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Inventories |  |
Finished goods | $ 3 | $ 19
Service parts | 11 | 12
Total inventories | 14 | 31
Deferred revenue |  |
Current deferred revenue | 482 | 472
Long-term deferred revenue | 38 | 61
Total deferred revenue | $ 520 | $ 533

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