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FAIR VALUE MEASUREMENTS - Schedule of Long-Term Debt at Fair Value (Details) - Senior Notes - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
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2026 Senior Notes |  |
Financial assets and liabilities accounted for at fair value |  |
Nominal Interest | 5.00% |
2028 Senior Notes |  |
Financial assets and liabilities accounted for at fair value |  |
Nominal Interest | 8.375% |
2030 Senior Notes |  |
Financial assets and liabilities accounted for at fair value |  |
Nominal Interest | 8.625% |
2031 Senior Notes |  |
Financial assets and liabilities accounted for at fair value |  |
Nominal Interest | 8.75% |
Senior Notes Due 2033, 9.625% |  |
Financial assets and liabilities accounted for at fair value |  |
Nominal Interest | 9.625% |
Fair Value, Inputs, Level 1 | 2026 Senior Notes |  |
Financial assets and liabilities accounted for at fair value |  |
Nominal Interest | 5.00% |
Fair Value | $ 395 | $ 394
Percent of Par | 99.00% | 99.00%
Fair Value, Inputs, Level 1 | 2028 Senior Notes |  |
Financial assets and liabilities accounted for at fair value |  |
Nominal Interest | 8.375% |
Fair Value | $ 1,384 | $ 1,405
Percent of Par | 102.00% | 104.00%
Fair Value, Inputs, Level 1 | 2030 Senior Notes |  |
Financial assets and liabilities accounted for at fair value |  |
Nominal Interest | 8.625% |
Fair Value | $ 1,016 | $ 1,049
Percent of Par | 102.00% | 105.00%
Fair Value, Inputs, Level 1 | 2031 Senior Notes |  |
Financial assets and liabilities accounted for at fair value |  |
Nominal Interest | 8.75% |
Fair Value | $ 1,366 | $ 1,408
Percent of Par | 101.00% | 104.00%
Fair Value, Inputs, Level 1 | Senior Notes Due 2033, 9.625% |  |
Financial assets and liabilities accounted for at fair value |  |
Fair Value | $ 770 |
Percent of Par | 103.00% |

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