Fair Value Measurements - Gains or Losses Recorded Related to Fair Value Option (Details) - Fair Value Option - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Fair Value, Option, Quantitative Disclosures
Fair value option gain (loss)	$ (67)	$ 534	$ (232)	$ 778
Other bond securities
Fair Value, Option, Quantitative Disclosures
Fair value option gain (loss)	13	16	10	27
Alternative investments
Fair Value, Option, Quantitative Disclosures
Fair value option gain (loss)	(80)	63	(88)	87
Retained investment in Corebridge
Fair Value, Option, Quantitative Disclosures
Fair value option gain (loss)	$ 0	$ 455	$ (154)	$ 664

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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