VARIABLE INTEREST ENTITIES - Schedule of Tax Credit Investments Recognized in Income Tax Expense (Details) - Variable Interest Entity, Not Primary Beneficiary - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Variable Interest Entity [Line Items] | ||||
| Amortization of affordable housing tax credit investments | $ 70 | $ 70 | $ 150 | $ 134 |
| Investment Program, Proportional Amortization Method, Applied, Amortization Expense, Statement of Cash Flows [Extensible Enumeration] | Depreciation, amortization, and accretion, net | Depreciation, amortization, and accretion, net | Depreciation, amortization, and accretion, net | Depreciation, amortization, and accretion, net |
| Investment Program Proportional Amortization Method Applied Income Tax Credit And Other Tax Benefit Amortization Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag | Amortization of affordable housing tax credit investments (1) | Amortization of affordable housing tax credit investments (1) | Amortization of affordable housing tax credit investments (1) | Amortization of affordable housing tax credit investments (1) |
| Tax credits from affordable housing tax credit investments | $ (77) | $ (67) | $ (157) | $ (135) |
| Other tax benefits from affordable housing tax credit investments | $ (15) | $ (16) | $ (32) | $ (23) |
| Investment Program Proportional Amortization Method Elected Income Tax Credit And Other Income Tax Benefit Before Amortization Statement Of Cash Flows Extensible Enumeration Not Disclosed Flag | Other tax benefits from affordable housing tax credit investments | Other tax benefits from affordable housing tax credit investments | Other tax benefits from affordable housing tax credit investments | Other tax benefits from affordable housing tax credit investments |
| InvestmentProgramProportionalAmortizationMethodElectedIncomeTaxCreditAndOtherIncomeTaxBenefitBeforeAmortizationStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag | Other tax benefits from affordable housing tax credit investments | Other tax benefits from affordable housing tax credit investments | Other tax benefits from affordable housing tax credit investments | Other tax benefits from affordable housing tax credit investments |
| Net income tax benefit from affordable housing tax credit investments | $ (22) | $ (13) | $ (39) | $ (24) |