v3.25.4
Other Assets - Amortization of Identifiable Intangible Assets (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Schedule Of Intangible Assets And Goodwill [Line Items]      
Amortization $ 83 $ 176 $ 681
GreenSky      
Schedule Of Intangible Assets And Goodwill [Line Items]      
Amortization     506
Increase (decrease) in intangible assets     $ (506)
Platform Solutions      
Schedule Of Intangible Assets And Goodwill [Line Items]      
Increase (decrease) in intangible assets   $ (72)