Investments - Variable Interest Entities (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
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| Schedule of Investments [Line Items] | |||||
| Variable Interest Entity, Primary Beneficiary, Maximum Loss Exposure, Amount | $ 0 | $ 0 | $ 0 | ||
| Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount | 4,500 | 4,500 | 4,000 | ||
| Investment Program, Proportional Amortization Method, Applied, Amortization Expense | 9 | $ 4 | 22 | $ 12 | |
| Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, before Amortization Expense | 6 | $ 6 | 25 | $ 19 | |
| Other Assets | 2,473 | 2,473 | 2,122 | ||
| Investment Program, Proportional Amortization Method, Elected, Commitment | 158 | 158 | 259 | ||
| Variable Interest Entity, Not Primary Beneficiary [Member] | |||||
| Schedule of Investments [Line Items] | |||||
| Variable Interest Entity, Reporting Entity Involvement, Commitments | 2,800 | 2,800 | 2,400 | ||
| Other Assets | $ 195 | $ 195 | $ 121 | ||
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- Definition Variable Interest Entity, Reporting Entity Involvement, Commitments No definition available.
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- Definition Amount, before amortization expense, of income tax credit and other tax benefit generated by investment under tax credit program elected to be accounted for using proportional amortization method. Includes, but is not limited to, investment under tax credit program not meeting condition for accounting under proportional amortization method. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- Definition Amount of amortization expense for investment that generates income tax credit and other income tax benefit under tax credit program accounted for using proportional amortization method. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- Definition Amount of assets classified as other. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of commitment and contingent commitment, including amount of delayed equity contribution, for investment that generates income tax credit and other income tax benefit under tax credit program elected to be accounted for using proportional amortization method. Includes, but is not limited to, commitment and contingent commitment related to investment under tax credit program not meeting condition for accounting under proportional amortization method. Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef
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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/disclosureRef
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- Definition The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of maximum exposure to loss from involvement with consolidated variable interest entity (VIE). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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