v3.24.2.u1
Fair Value Disclosures - Investments in Certain Entities Calculate Net Asset Value per Share (Parenthetical) (Detail) - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Total Unfunded Commitments $ 739 $ 725
Real Assets Funds [Member]    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Total Unfunded Commitments 294 272
Total remaining Unfunded Commitments $ 267 $ 248