Investments - Investments - Mortgage Servicing (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Mortgage Servicing [Line Items] | ||
| Continuing Involvement with Transferred Financial Assets, Principal Amount Outstanding | $ 10,500 | $ 10,400 |
| Continuing Involvement with Derecognized Transferred Financial Assets, Amount Outstanding | 4,700 | 4,800 |
| Servicing Asset at Fair Value, Amount | 0 | 0 |
| Investments [Member] | ||
| Mortgage Servicing [Line Items] | ||
| Continuing Involvement with Continued to be Recognized Transferred Financial Assets, Amount Outstanding | $ 5,800 | $ 5,600 |
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- Definition Mortgage Servicing No definition available.
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- Definition Principal amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction that have been derecognized. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction that continue to be recognized in the statement of financial position. Includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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