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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Fair Value Measurements - Financial Instruments Not Carried at Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financing Receivable, after Allowance for Credit Loss	$ 7,262		$ 6,837
Other policyholder funds and benefits payable	606		612	$ 612
Commercial Loan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financing Receivable, after Allowance for Credit Loss	7,262		6,837
Financing Receivable, Allowance for Credit Loss	49	$ 49	49	$ 43	$ 43	$ 44
Significant Unobservable Inputs (Level 3) \| Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financing Receivable, after Allowance for Credit Loss	7,262		6,837
Other policyholder funds and benefits payable	606		612
Significant Unobservable Inputs (Level 3) \| Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financing Receivable, after Allowance for Credit Loss	6,993		6,607
Other policyholder funds and benefits payable	606		613
Significant Observable Inputs (Level 2) \| Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Senior Notes	3,875		3,872
Junior Subordinated Debentures	499		499
Significant Observable Inputs (Level 2) \| Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Senior Notes	3,468		3,528
Junior Subordinated Debentures	$ 491		$ 473