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Investments - Residential Mortgage Loans by Year of Origination (Details) - Residential - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year one | $ 957 | $ 517
Year two | 560 | 555
Year three | 536 | 483
Year four | 463 | 81
Year five | 76 | 112
Year six and prior | 155 | 57
Total | 2,747 | 1,805
Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year one | 957 | 515
Year two | 556 | 533
Year three | 512 | 465
Year four | 448 | 78
Year five | 73 | 99
Year six and prior | 141 | 53
Total | 2,687 | 1,743
Nonperforming |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year one | 0 | 2
Year two | 4 | 22
Year three | 24 | 18
Year four | 15 | 3
Year five | 3 | 13
Year six and prior | 14 | 4
Total | $ 60 | $ 62

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