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Supplemental Financial Information | 3 Months Ended
--- | ---
Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Supplemental Financial Information | Supplemental Financial Information
| As of
In millions | March 31, 2015 |  | December 31, 2014
Inventories |  |  |
Finished goods | $ | 25 |  |  | $ | 21 |
Service parts | 17 |  |  | 17 |
Total inventories | $ | 42 |  |  | $ | 38 |
Deferred revenue |  |  |
Deferred revenue, current | $ | 492 |  |  | $ | 370 |
Long-term deferred revenue | 16 |  |  | 18 |
Total deferred revenue | $ | 508 |  |  | $ | 388 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References No definition available. + Details
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