Investments - Realized Investment Gains and Losses and Change in Unrealized Investment Gains and Losses and Other Items (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Investment income:
Interest	$ 244	$ 214	$ 479	$ 424
Dividends	72	70	148	137
Other	8	5	20	12
Total	324	289	647	573
Less investment expenses	5	4	10	8
Total	319	285	637	565
Investment gains and losses, net
Other	3	5	4	12
Total	1,308	473	1,238	406
Equity securities
Investment gains and losses, net
Investment gains and losses on securities sold, net	183	(1)	223	(3)
Unrealized gains and losses on securities still held, net	1,117	481	1,006	411
Total	1,300	480	1,229	408
Fixed maturities
Investment gains and losses, net
Gross realized gains	7	1	9	1
Gross realized losses	(1)	0	(2)	0
Change in allowance for credit losses, net	(1)	(13)	(2)	(15)
Total	$ 5	$ (12)	$ 5	$ (14)

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Amount, before investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

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