Investments (Fixed Maturity Securities AFS - Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items]
Estimated Fair Value of Fixed Maturity Securities AFS	$ 322,183	$ 315,931
Gross Unrealized Gains (Losses)	$ (30,769)	$ (28,158)

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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+ Details

- 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.

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