Investments - Residential Mortgage Loans by Year of Origination (Details) - Residential - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 1,654	$ 1,909
Year two	1,840	573
Year three	461	525
Year four	458	438
Year five	395	69
Year six and prior	206	150
Total	5,014	3,664
Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	1,650	1,895
Year two	1,776	557
Year three	440	492
Year four	425	427
Year five	381	65
Year six and prior	194	136
Total	4,866	3,572
Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	4	14
Year two	64	16
Year three	21	33
Year four	33	11
Year five	14	4
Year six and prior	12	14
Total	$ 148	$ 92

Amortized cost, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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