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STOCK-BASED COMPENSATION - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2027 | Dec. 31, 2026 | Dec. 31, 2025
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Stock-based compensation expense | $ 24 | $ 23 | $ 68 | $ 57 |  |  |
Unamortized compensation expense expected to be vested | $ 105 |  | $ 105 |  |  |  |
Granted (in shares) | 0 | 0 | 0 | 0 |  |  |
Exercisable at period end (in shares) | 92,925 |  | 92,925 |  |  |  |
Stock Option |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  |  | 3 years |  |  |  |
Plan term |  |  | 10 years |  |  |  |
Performance Shares |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  |  | 3 years |  |  |  |
Share-based compensation, relative total stockholder return modifier, payment percentage, increase |  |  | 10.00% |  |  |  |
Share-based compensation, relative total stockholder return modifier, payment percentage, decrease |  |  | 20.00% |  |  |  |
Percentage of incentive stock awards expected to be vested and awarded of stocks granted |  |  | 100.00% |  |  |  |
Performance Shares | Scenario Forecast |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Percentage of incentive stock awards expected to be vested and awarded of stocks granted |  |  |  |  | 139.00% | 200.00% | 188.00%
Performance Shares | Minimum |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Percentage of incentive stock awards expected to be vested and awarded of stocks granted |  |  | 0.00% |  |  |  |
Performance Shares | Maximum |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Percentage of incentive stock awards expected to be vested and awarded of stocks granted |  |  | 200.00% |  |  |  |
2011 and 2000 Plans | Restricted Stock |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  |  | 3 years |  |  |  |
2011 Plan |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Number of shares available for grant (in shares) | 3,900,000 |  | 3,900,000 |  |  |  |
Directors Plan | Restricted Stock |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  |  | 1 year |  |  |  |

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