STOCKHOLDER'S EQUITY Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Mar. 31, 2026 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Balance at the beginning of period | $ 23 | $ 21 | $ 25 | $ 28 | $ 21 | $ 28 |
| Derivative Instruments [Abstract] | ||||||
| Reclassification of net gain relating to interest rate cash flow hedges from AOCI to earnings (net of tax of $(1), $(1), $(1) and $(1), respectively) (a) | (2) | (1) | (3) | (1) | ||
| Gain (loss) on interest rate swaps relating to interest rate cash flow hedges (net of tax of $1, $(1), $2 and $(2), respectively) | 1 | (3) | 4 | (6) | ||
| TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX | (1) | 2 | (4) | (3) | 1 | (7) |
| Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax | (1) | 1 | (2) | 2 | ||
| Balance at the end of period | 22 | $ 23 | 21 | $ 25 | 22 | 21 |
| Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax | $ (1) | $ (1) | $ (1) | $ (1) | ||
| X | ||||||||||
- Definition Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount, after tax and before reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of tax expense (benefit) for reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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