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Other Financial Information (Tables) | 3 Months Ended
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Mar. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Schedule of Components of Other Current Assets | The following table presents details of other current assets reflected in our consolidated balance sheets:
| March 31, 2021 |  | December 31, 2020
| (Dollars in millions)
Prepaid expenses | $ | 403 |  |  | 290 |
Income tax receivable | 6 |  |  | 7 |
Materials, supplies and inventory | 100 |  |  | 105 |
Contract assets | 64 |  |  | 66 |
Contract acquisition costs | 170 |  |  | 173 |
Contract fulfillment costs | 115 |  |  | 114 |
Other | 66 |  |  | 53 |
Total other current assets | $ | 924 |  |  | 808 |

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- Definition Tabular disclosure of the carrying amounts of other current assets. + References No definition available. + Details
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