v3.26.1
DEBT - Short-Term Borrowings (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Short-term Debt [Line Items]    
Commercial paper $ 20,777 $ 19,941
Other borrowings 51,279 31,937
Total short-term borrowings 72,056 51,878
Collateralized short-term advances from Federal Home Loan Bank 14,000 6,000
Bank    
Short-term Debt [Line Items]    
Commercial paper 13,829 10,050
Broker-dealer and other    
Short-term Debt [Line Items]    
Commercial paper $ 6,948 $ 9,891