Investments - Realized Investment Gains and Losses and Change in Unrealized Investment Gains and Losses and Other Items (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Investment income:
Interest	$ 252	$ 227	$ 731	$ 651
Dividends	66	69	214	206
Other	11	4	31	16
Total	329	300	976	873
Less investment expenses	4	5	14	13
Total	325	295	962	860
Investment gains and losses, net
Other	22	6	26	18
Total	20	853	1,258	1,259
Equity securities
Investment gains and losses, net
Investment gains and losses on securities sold, net	5	(9)	255	(5)
Unrealized gains and losses on securities still held, net	1	855	980	1,259
Total	6	846	1,235	1,254
Fixed maturities
Investment gains and losses, net
Gross realized gains	0	2	9	3
Gross realized losses	(3)	(1)	(5)	(1)
Change in allowance for credit losses, net	(5)	0	(7)	(15)
Total	$ (8)	$ 1	$ (3)	$ (13)

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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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