RISK-MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES - Narrative (Details) - USD ($) |
3 Months Ended | 9 Months Ended | |
|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Derivative Instruments and Hedging Activities Disclosures [Line Items] | |||
| Risk-management assets and liabilities | $ (159,000,000) | $ (159,000,000) | $ 19,000,000 |
| Cash flow hedge gain (loss) to be reclassified within 12 months | (141,000,000) | ||
| Unrealized gains (losses) | (276,000,000) | (647,000,000) | |
| Interest-rate contracts (Billions of dollars) | Cash Flow Hedging | Derivatives designated as hedging instruments | |||
| Derivative Instruments and Hedging Activities Disclosures [Line Items] | |||
| Derivative outstanding | $ 0 | $ 0 | $ 0 |
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- Definition Amount, after tax, of accumulated gain (loss) on 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 The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Nominal or face amount used to calculate payment on derivative. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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