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Supplemental Financial Information | 6 Months Ended
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Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Supplemental Financial Information | Supplemental Financial Information
| As of
In millions | June 30, 2022 |  | December 31, 2021
Inventories |  |  |
Finished goods | $ | 11 |  |  | $ | 17 |
Service parts | 6 |  |  | 9 |
Total inventories | $ | 17 |  |  | $ | 26 |
Deferred revenue |  |  |
Deferred revenue, current | $ | 530 |  |  | $ | 552 |
Long-term deferred revenue | 11 |  |  | 27 |
Total deferred revenue | $ | 541 |  |  | $ | 579 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI https://asc.fasb.org/topic&trid=2122208 + Details
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