Derivatives (Credit Risk on Freestanding Derivatives) (Details) - Derivatives Subject To Credit-Contingent Provisions - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Credit Derivatives [Line Items]
Estimated fair value of derivatives in a net liability position (1)	$ 1,168	$ 2,314
Fixed maturity securities
Credit Derivatives [Line Items]
Estimated fair value of collateral provided (2):	$ 3,671	$ 4,883

The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

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-Topic 815
-SubTopic 10
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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.

+ References

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- Definition

The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 185
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480401/815-10-55-185

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-Topic 815
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-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4H

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