Other Assets - Tax Equity Investments under the Proportional Amortization Method (Details) - USD ($) $ in Millions |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Equity Method Investments | ||
| Total proportional amortization method investment | $ 1,865 | $ 1,925 |
| Unfunded equity contributions | $ 671 | 707 |
| Funding period | 5 years | |
| Excluded tax equity investments | $ 42 | 45 |
| Low-income housing | ||
| Equity Method Investments | ||
| Total proportional amortization method investment | 1,836 | 1,897 |
| Renewable energy and other | ||
| Equity Method Investments | ||
| Total proportional amortization method investment | $ 29 | $ 28 |
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- Definition Investment Program, Proportional Amortization Method, Elected, Commitment, Funding Period No definition available.
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- Definition Investment, Proportional Amortization Method, Not Elected, Amount No definition available.
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- Definition Amount of 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, investment under 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 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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