v3.25.2
Acquisitions and Dispositions (Allocation of Acquisition Costs) (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Business Combination [Line Items]        
Cash $ 86 $ 662    
Estimated fair value of deferred/contingent purchase consideration 47 54    
Fair value of previously-held equity method investment 15      
Total consideration 148 716    
Allocation of purchase price:        
Goodwill 23,919 $ 17,516 $ 23,306 $ 17,231
Current Fiscal Period Acquisitions        
Business Combination [Line Items]        
Cash 86      
Estimated fair value of deferred/contingent purchase consideration 47      
Fair value of previously-held equity method investment 15      
Total consideration 148      
Allocation of purchase price:        
Cash and cash equivalents 7      
Cash and cash equivalents held in a fiduciary capacity 17      
Net receivables 6      
Other current assets 2      
Goodwill 100      
Other intangible assets 48      
Right of use assets 2      
Other assets 4      
Total assets acquired 186      
Current liabilities 8      
Fiduciary liabilities 17      
Other liabilities 13      
Total liabilities assumed 38      
Net assets acquired $ 148