v3.26.1
Derivatives, Gains (Losses) Recognized on Cash Flow Hedging Relationships (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Line Items Presented in the Consolidated Statement of Income and Other Comprehensive Income [Abstract]    
Loans $ 13,809 $ 13,357
Other interest income 226 239 [1]
Long-term debt (2,386) (2,582)
Total recorded in OCI, Derivative gains (losses) (465) 593
Derivatives (Textual) [Abstract]    
Deferred net gains (losses) on derivatives in other comprehensive income $ (339)  
Maximum length of time hedged in cash flow hedge 9 years  
Cash flow hedging [Member]    
Gains (losses) recognized on cash flow hedging relationships [Abstract]    
Total gain (loss) (pre-tax) recognized on cash flow hedges $ (80) (142)
Reclassification of net (gains) losses to net income on cash flow hedges, Before tax 80 142
Net unrealized gains (losses) (pre-tax) recognized in OCI (557) 444
Other comprehensive income (loss), cash flow hedge, gain (loss), after reclassification, before tax (477) 586
Cash flow hedging [Member] | Interest rate contracts [Member]    
Gains (losses) recognized on cash flow hedging relationships [Abstract]    
Realized gains (losses) (pre-tax) reclassified from OCI into net income (79) (140)
Total gain (loss) (pre-tax) recognized on cash flow hedges (79) (140)
Reclassification of net (gains) losses to net income on cash flow hedges, Before tax 79 140
Net unrealized gains (losses) (pre-tax) recognized in OCI (557) 444
Other comprehensive income (loss), cash flow hedge, gain (loss), after reclassification, before tax (478) 584
Cash flow hedging [Member] | Foreign exchange contracts [Member]    
Gains (losses) recognized on cash flow hedging relationships [Abstract]    
Realized gains (losses) (pre-tax) reclassified from OCI into net income (1) (2)
Total gain (loss) (pre-tax) recognized on cash flow hedges (1) (2)
Reclassification of net (gains) losses to net income on cash flow hedges, Before tax 1 2
Net unrealized gains (losses) (pre-tax) recognized in OCI 0 0
Other comprehensive income (loss), cash flow hedge, gain (loss), after reclassification, before tax 1 2
Cash flow hedging [Member] | Loans [Member]    
Gains (losses) recognized on cash flow hedging relationships [Abstract]    
Total gain (loss) (pre-tax) recognized on cash flow hedges (41) (85)
Cash flow hedging [Member] | Loans [Member] | Interest rate contracts [Member]    
Gains (losses) recognized on cash flow hedging relationships [Abstract]    
Realized gains (losses) (pre-tax) reclassified from OCI into net income (41) (85)
Total gain (loss) (pre-tax) recognized on cash flow hedges (41) (85)
Cash flow hedging [Member] | Loans [Member] | Foreign exchange contracts [Member]    
Gains (losses) recognized on cash flow hedging relationships [Abstract]    
Realized gains (losses) (pre-tax) reclassified from OCI into net income 0 0
Total gain (loss) (pre-tax) recognized on cash flow hedges 0 0
Cash flow hedging [Member] | Other interest income [Member]    
Gains (losses) recognized on cash flow hedging relationships [Abstract]    
Total gain (loss) (pre-tax) recognized on cash flow hedges (38) (55)
Cash flow hedging [Member] | Other interest income [Member] | Interest rate contracts [Member]    
Gains (losses) recognized on cash flow hedging relationships [Abstract]    
Realized gains (losses) (pre-tax) reclassified from OCI into net income (38) (55)
Total gain (loss) (pre-tax) recognized on cash flow hedges (38) (55)
Cash flow hedging [Member] | Other interest income [Member] | Foreign exchange contracts [Member]    
Gains (losses) recognized on cash flow hedging relationships [Abstract]    
Realized gains (losses) (pre-tax) reclassified from OCI into net income 0 0
Total gain (loss) (pre-tax) recognized on cash flow hedges 0 0
Cash flow hedging [Member] | Long-term debt [Member]    
Gains (losses) recognized on cash flow hedging relationships [Abstract]    
Total gain (loss) (pre-tax) recognized on cash flow hedges (1) (2)
Cash flow hedging [Member] | Long-term debt [Member] | Interest rate contracts [Member]    
Gains (losses) recognized on cash flow hedging relationships [Abstract]    
Realized gains (losses) (pre-tax) reclassified from OCI into net income 0 0
Total gain (loss) (pre-tax) recognized on cash flow hedges 0 0
Cash flow hedging [Member] | Long-term debt [Member] | Foreign exchange contracts [Member]    
Gains (losses) recognized on cash flow hedging relationships [Abstract]    
Realized gains (losses) (pre-tax) reclassified from OCI into net income (1) (2)
Total gain (loss) (pre-tax) recognized on cash flow hedges $ (1) $ (2)
[1] In fourth quarter 2025, we changed the presentation of certain items on our consolidated balance sheet, including trading assets and liabilities and short-term borrowings, with corresponding changes to our consolidated statement of income. Prior period balances have been revised to conform with the current period presentation. For additional information, see Note 1 (Summary of Significant Accounting Policies) in this report