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Investment Information - Limited partnership interests (Details) - USD ($)
$ in Millions

Jun. 30, 2025

Dec. 31, 2024

Schedule of Equity Method Investments [Line Items]

Maximum Exposure to Loss

$ 6,598

$ 6,028

Aggregate unfunded commitments

4,300

4,400

Equity method investments

Schedule of Equity Method Investments [Line Items]

Maximum Exposure to Loss

^[1]

6,566

5,980

Aggregate unfunded commitments

4,200

4,300

Fair value option

Schedule of Equity Method Investments [Line Items]

Maximum Exposure to Loss

^[2]

32

48

Aggregate unfunded commitments

$ 22

$ 21

[1]	Aggregate unfunded commitments were $4.2 billion at June 30, 2025, compared to $4.3 billion at December 31, 2024.
[2]	Aggregate unfunded commitments were $22 million at June 30, 2025, compared to $21 million at December 31, 2024

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