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Investments - Schedule of Portfolio Composition (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Investments [Abstract]
Fixed income securities	$ 59,115	$ 52,747
Equity securities, at fair value	8,398	4,463
Mortgage loans, net	879	784
Limited partnership interests	8,844	9,255
Short-term investments, at fair value	4,887	4,537
Other investments, net	1,114	824
Total investments	$ 83,237	$ 72,610

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The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

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