Commitments and Contingencies - Summary (Details) - USD ($) $ in Millions |
Mar. 31, 2025 |
Dec. 31, 2024 |
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| Tax Credit and Certain Equity Investments | ||
| Investment, Proportional Amortization Method, Elected, Statement of Financial Position [Extensible Enumeration] | Other assets (including $1,324 and $1,271 at fair value, respectively) | Other assets (including $1,324 and $1,271 at fair value, respectively) |
| Investments in affordable housing projects | ||
| Tax Credit and Certain Equity Investments | ||
| Carrying amount | $ 7,734 | $ 7,782 |
| Amount of future funding commitments included in carrying amount | 2,547 | 2,667 |
| Lending exposure | 2,251 | 2,376 |
| Renewable Energy Investments | ||
| Tax Credit and Certain Equity Investments | ||
| Carrying amount | 752 | 551 |
| Amount of future funding commitments not included in carrying amount | 649 | 702 |
| SBIC and certain other equity method investments: | ||
| Tax Credit and Certain Equity Investments | ||
| Carrying amount | 918 | 878 |
| Amount of future funding commitments not included in carrying amount | $ 618 | $ 613 |
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- Definition Lending commitments to Affordable Housing Projects 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 This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Indicates line item in statement of financial position that includes 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 tax credit program not meeting condition for accounting under proportional amortization method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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. No definition available.
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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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