Annual report [Section 13 and 15(d), not S-K Item 405]

Securities - Narrative (Details)

v3.25.0.1
Securities - Narrative (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Investments, Debt And Equity Securities [Line Items]    
Equity securities, fair value $ 247 $ 251
Equity securities, cost 438 377
Recurring    
Investments, Debt And Equity Securities [Line Items]    
Time deposits placed and other short-term investments 1,318 1,181
AFS securities    
Investments, Debt And Equity Securities [Line Items]    
Accumulated net unrealized loss on AFS debt securities 2,600  
Accumulated other comprehensive income benefit 872  
U.S. Agency And U.S. Treasury Securities    
Investments, Debt And Equity Securities [Line Items]    
AFS and HTM debt securities 871,100 824,900
All Non U.S. Agency And Non U.S. Treasury Securities    
Investments, Debt And Equity Securities [Line Items]    
AFS and HTM debt securities $ 37,500 $ 40,200