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Investments - VIE (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Schedule of Investments [Line Items]
Carrying Value	$ 25,358	$ 23,908
Maximum Loss Exposure	29,175	27,152
Investment in unconsolidated affiliates
Schedule of Investments [Line Items]
Carrying Value	3,367	3,071
Maximum Loss Exposure	5,733	4,806
Fixed maturity securities
Schedule of Investments [Line Items]
Carrying Value	21,991	20,837
Maximum Loss Exposure	$ 23,442	$ 22,346

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Investments Owned, VIE, Unconsolidated, Carrying Value

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