Related Parties - Schedule of Athene’s Investments in VA Capital and Venerable (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Related Party Transaction [Line Items]
AFS securities	$ 218,684	$ 184,167
Related Party
Related Party Transaction [Line Items]
AFS securities	24,663	18,803
Investment fund	2,135	1,853
Venerable Insurance and Annuity Company \| Related Party \| Athene
Related Party Transaction [Line Items]
AFS securities	106	0
Investment fund	223	178
Other investments	345	331
Total Investments – Asset Management	$ 674	$ 509

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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