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Fresh Start Accounting - Successor’s Equity (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Feb. 09, 2021 | Dec. 31, 2020
--- | --- | --- | --- | ---
Reorganization, Chapter 11 [Line Items] |  |  |  |
Enterprise Value |  |  | $ 4,851 |
Plus: Cash and cash equivalents | $ 130 | $ 905 | 40 | $ 279
Less: Fair value of debt | (3,000) |  | (1,313) |
Successor equity value | $ 9,124 | $ 5,671 | 3,586 |
Restricted cash |  |  | 86 |
Reorganization, Chapter 11, Fresh-Start Adjustment |  |  |  |
Reorganization, Chapter 11 [Line Items] |  |  |  |
Plus: Cash and cash equivalents |  |  | 48 |
Less: Fair value of debt |  |  | (52) |
Successor equity value |  |  | 210 |
Restricted cash |  |  | $ 8 |

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