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Investments - Fair Value of Trading Securities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	$ 2,025	$ 2,359
Corporate bonds
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	1,409	1,653
State and municipal bonds
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	13	21
Foreign government bonds
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	41	46
RMBS
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	63	62
CMBS
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	109	104
ABS
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	371	455
Hybrid and redeemable preferred securities
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	$ 19	$ 18

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- Definition

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+ References

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading).

+ References

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