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Investments (Net Investment Income) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Net Investment Income [Line Items]
Less: Investment expenses	$ 522	$ 571	$ 1,575	$ 1,703
Net investment income	6,089	5,227	16,635	15,868
Securities Investment
Net Investment Income [Line Items]
Gross Investment Income, Operating	6,031	5,652	17,359	16,664
Net investment income	5,509	5,081	15,784	14,961
Fixed maturity securities AFS
Net Investment Income [Line Items]
Gross Investment Income, Operating	3,689	3,457	10,764	10,100
Equity Securities
Net Investment Income [Line Items]
Gross Investment Income, Operating	4	4	16	18
FVO securities
Net Investment Income [Line Items]
Gross Investment Income, Operating	99	76	186	183
Mortgage loans
Net Investment Income [Line Items]
Gross Investment Income, Operating	1,112	1,184	3,355	3,565
Policy loans
Net Investment Income [Line Items]
Gross Investment Income, Operating	115	116	335	339
Real Estate and Real Estate Joint Ventures
Net Investment Income [Line Items]
Gross Investment Income, Operating	186	178	632	268
OLPI
Net Investment Income [Line Items]
Gross Investment Income, Operating	428	87	772	713
Cash, cash equivalents and short-term investments
Net Investment Income [Line Items]
Gross Investment Income, Operating	259	299	763	840
Operating joint ventures
Net Investment Income [Line Items]
Gross Investment Income, Operating	146	92	204	136
Other Investments
Net Investment Income [Line Items]
Net investment income	(7)	159	332	502
Unit-linked investments
Net Investment Income [Line Items]
Net investment income	$ 580	$ 146	$ 851	$ 907

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- Definition

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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