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v3.25.0.1

Investments - Variable Interest Entities (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Schedule of Investments [Line Items] |  |  |
Variable Interest Entity, Primary Beneficiary, Maximum Loss Exposure, Amount | $ 0 | $ 0 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount | 3,200 | 3,000 |
Investment Program, Proportional Amortization Method, Applied, Amortization Expense | 2 | 1 | $ 0
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, before Amortization Expense | 8 | 1 | $ 0
Other Assets | 1,981 | 1,754 |
Investment Program, Proportional Amortization Method, Elected, Commitment | 267 | 180 |
Transfer of Financial Assets Accounted for as Sales, Amount Derecognized | 86 |  |
Securitization or Asset-Backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale, Gain (Loss) on Sale | 1 |  |
Variable Interest Entity, Not Primary Beneficiary [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Other Assets | 51 | 20 |
Collateralized Loan Obligations [Member] | Securities available-for-sale and other |  |  |
Schedule of Investments [Line Items] |  |  |
Variable Interest Entity, Reporting Entity Involvement, Commitments | 426 |  |
Transfers of Financial Assets Accounted for as Sale, Initial Fair Value of Assets Obtained as Proceeds | 24 |  |
Collateralized Loan Obligations [Member] | Fair Value Option, Other Eligible Items |  |  |
Schedule of Investments [Line Items] |  |  |
Transfers of Financial Assets Accounted for as Sale, Initial Fair Value of Assets Obtained as Proceeds | 50 |  |
Variable Interest Entity, Not Primary Beneficiary [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Variable Interest Entity, Reporting Entity Involvement, Commitments | $ 2,000 | $ 1,700 |

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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 323 -SubTopic 740 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478156/323-740-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 323 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478156/740-323-50-1A + Details
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