v3.25.4
Investments - Summary of Investments in Unconsolidated Variable Interest Entities and Estimated Maximum Exposure to Loss (Detail) - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Variable Interest Entity    
Investments in Unconsolidated VIEs $ 29,944,000,000 $ 26,899,000,000
Variable Interest Entity, Not Primary Beneficiary    
Variable Interest Entity    
Investments in Unconsolidated VIEs 302,000,000  
Maximum Exposure to Loss 695,000,000  
Variable Interest Entity, Not Primary Beneficiary | NQ Fund V    
Variable Interest Entity    
Investments in Unconsolidated VIEs 33,000,000  
Maximum Exposure to Loss 40,000,000  
Variable Interest Entity, Not Primary Beneficiary | NQ PE Fund I    
Variable Interest Entity    
Investments in Unconsolidated VIEs 10,000,000  
Maximum Exposure to Loss 11,000,000  
Variable Interest Entity, Not Primary Beneficiary | Longwood    
Variable Interest Entity    
Investments in Unconsolidated VIEs 4,000,000  
Maximum Exposure to Loss 5,000,000  
Variable Interest Entity, Not Primary Beneficiary | NQ Fund IV    
Variable Interest Entity    
Investments in Unconsolidated VIEs 4,000,000  
Maximum Exposure to Loss 4,000,000  
Variable Interest Entity, Not Primary Beneficiary | Other    
Variable Interest Entity    
Investments in Unconsolidated VIEs 251,000,000  
Maximum Exposure to Loss $ 635,000,000