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Supplemental Financial Information (Detail) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Inventories |  |
Finished goods | $ 11 | $ 17
Service parts | 6 | 9
Total inventories | 17 | 26
Deferred revenue |  |
Current deferred revenue | 530 | 552
Long-term deferred revenue | 11 | 27
Total deferred revenue | $ 541 | $ 579

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