v3.26.1
Investment Information - Limited partnership interests (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Schedule of Equity Method Investments [Line Items]    
Maximum Exposure to Loss $ 6,868 $ 6,453
Aggregate unfunded commitments 4,400 3,700
Equity method investments    
Schedule of Equity Method Investments [Line Items]    
Maximum Exposure to Loss [1] 6,852 6,453
Aggregate unfunded commitments 4,100 3,600
Fair value option    
Schedule of Equity Method Investments [Line Items]    
Maximum Exposure to Loss [2] 16 0
Aggregate unfunded commitments $ 245 $ 65
[1] Aggregate unfunded commitments were $4.1 billion at June 30, 2026, compared to $3.6 billion at December 31, 2025.
[2] Aggregate unfunded commitments were $245 million at June 30, 2026, compared to $65 million at December 31, 2025