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Basis of Presentation (Tables) | 3 Months Ended
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Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Cash and Cash Equivalents | Cash, cash equivalents and restricted cash are included in the following line items in the condensed consolidated balance sheets:
| At March 31, |  | At December 31, |  | Increase
(dollars in millions) | 2024 |  | 2023 |
Cash and cash equivalents | $ | 2,365 |  |  | $ | 2,065 |  |  | $ | 300 |
Restricted cash: |  |  |  |  |
Prepaid expenses and other | 1,341 |  |  | 1,244 |  |  | 97 |
Other assets | 202 |  |  | 188 |  |  | 14 |
Cash, cash equivalents and restricted cash | $ | 3,908 |  |  | $ | 3,497 |  |  | $ | 411 |
Schedule of Restricted Cash | Cash, cash equivalents and restricted cash are included in the following line items in the condensed consolidated balance sheets:
| At March 31, |  | At December 31, |  | Increase
(dollars in millions) | 2024 |  | 2023 |
Cash and cash equivalents | $ | 2,365 |  |  | $ | 2,065 |  |  | $ | 300 |
Restricted cash: |  |  |  |  |
Prepaid expenses and other | 1,341 |  |  | 1,244 |  |  | 97 |
Other assets | 202 |  |  | 188 |  |  | 14 |
Cash, cash equivalents and restricted cash | $ | 3,908 |  |  | $ | 3,497 |  |  | $ | 411 |

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