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SUBSEQUENT EVENT - Narrative (Details) - USD ($) | 1 Months Ended | 7 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Subsequent Event [Line Items] |  |  |  |  |  |
Repayments of long-term debt |  |  |  | $ 1,710,000,000 | $ 7,846,000,000 | $ 3,440,000,000
Senior Unsecured Notes |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Repurchased aggregate principal amount |  | $ 8,000,000 | $ 927,000,000 | $ 8,000,000 | $ 927,000,000 |
Repayments of long-term debt |  | $ 7,000,000 | $ 550,000,000 |  |  |
Subsequent Event | Senior Unsecured Notes | December 2025 and April 2026 Unsecured Notes |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Repurchased aggregate principal amount | $ 250,000,000 |  |  |  |  |
Repayments of long-term debt | $ 238,000,000 |  |  |  |  |

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