v3.25.2
Revenue - Schedule of Estimated Technology Services and Subscription Revenue Expected to Be Recognized in Future, Related to Unsatisfied Portion of Performance Obligations (Detail) - Technology Services and Subscription Revenue [Member] - USD ($)
$ in Millions
Jun. 30, 2025
Jun. 30, 2024
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]    
Revenue, Remaining Performance Obligation $ 486 $ 301
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2024-07-01    
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period   6 months
Revenue, Remaining Performance Obligation   $ 78
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-01-01    
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period   1 year
Revenue, Remaining Performance Obligation   $ 88
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-07-01    
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 6 months  
Revenue, Remaining Performance Obligation $ 133  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-01-01    
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 1 year 1 year
Revenue, Remaining Performance Obligation $ 161 $ 64
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2027-01-01    
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 1 year 1 year
Revenue, Remaining Performance Obligation $ 86 $ 36
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2028-01-01    
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 1 year 1 year
Revenue, Remaining Performance Obligation $ 45 $ 35
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2029-01-01    
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 1 year  
Revenue, Remaining Performance Obligation $ 61