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v3.19.3

Supplemental Financial Information (Tables) | 9 Months Ended
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Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Supplemental Financial Information |
| As of
In millions | September 30, 2019 |  | December 31, 2018
Inventories |  |  |
Finished goods | $ | 24 |  |  | $ | 16 |
Service parts | 12 |  |  | 12 |
Total inventories | $ | 36 |  |  | $ | 28 |
Deferred revenue |  |  |
Deferred revenue, current | $ | 408 |  |  | $ | 490 |
Long-term deferred revenue | 68 |  |  | 105 |
Total deferred revenue | $ | 476 |  |  | $ | 595 |

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