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Investment Information - Limited partnership interests (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Schedule of Equity Method Investments [Line Items] |  |  |
Limited partnership interests |  | $ 6,453 | $ 6,028
Aggregate commitments |  | 3,700 | 4,400
Equity method investments |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Limited partnership interests | [1] | 6,453 | 5,980
Aggregate commitments |  | 3,600 | 4,300
Fair value option |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Limited partnership interests | [2] | 0 | 48
Aggregate commitments |  | $ 65 | $ 21
[1] | Aggregate unfunded commitments were $3.6 billion at December 31, 2025, compared to $4.3 billion at December 31, 2024.
[2] | Aggregate unfunded commitments were $65 million at December 31, 2025, compared to $21 million at December 31, 2024.

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