v3.26.1
Derivatives, Gains (Losses) Recognized on Cash Flow Hedging Relationships (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Line Items Presented in the Consolidated Statement of Income and Other Comprehensive Income [Abstract]        
Interest-earning deposits with banks $ 1,351 $ 1,353 [1] $ 2,619 $ 2,826 [1]
Loans 14,301 13,573 28,110 26,930
Long-term debt (2,386) (2,609) (4,772) (5,191)
Total recorded in OCI, Derivative gains (losses) (675) 448 (1,140) 1,041
Derivatives (Textual) [Abstract]        
Deferred net gains (losses) on derivatives in other comprehensive income     $ (591)  
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 (68) (164) $ (148) (306)
Reclassification of net (gains) losses to net income on cash flow hedges, Before tax 68 164 148 306
Net unrealized gains (losses) (pre-tax) recognized in OCI (743) 279 (1,300) 723
Other comprehensive income (loss), cash flow hedge, gain (loss), after reclassification, before tax (675) 443 (1,152) 1,029
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 (67) (163) (146) (303)
Total gain (loss) (pre-tax) recognized on cash flow hedges (67) (163) (146) (303)
Reclassification of net (gains) losses to net income on cash flow hedges, Before tax 67 163 146 303
Net unrealized gains (losses) (pre-tax) recognized in OCI (743) 279 (1,300) 723
Other comprehensive income (loss), cash flow hedge, gain (loss), after reclassification, before tax (676) 442 (1,154) 1,026
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) (1) (2) (3)
Total gain (loss) (pre-tax) recognized on cash flow hedges (1) (1) (2) (3)
Reclassification of net (gains) losses to net income on cash flow hedges, Before tax 1 1 2 3
Net unrealized gains (losses) (pre-tax) recognized in OCI 0 0 0 0
Other comprehensive income (loss), cash flow hedge, gain (loss), after reclassification, before tax 1 1 2 3
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 (31) (105) (72) (190)
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 (31) (105) (72) (190)
Total gain (loss) (pre-tax) recognized on cash flow hedges (31) (105) (72) (190)
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 0 0
Total gain (loss) (pre-tax) recognized on cash flow hedges 0 0 0 0
Cash flow hedging [Member] | Interest-bearing deposits [Member]        
Gains (losses) recognized on cash flow hedging relationships [Abstract]        
Total gain (loss) (pre-tax) recognized on cash flow hedges (36) (58) (74) (113)
Cash flow hedging [Member] | Interest-bearing deposits [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 (36) (58) (74) (113)
Total gain (loss) (pre-tax) recognized on cash flow hedges (36) (58) (74) (113)
Cash flow hedging [Member] | Interest-bearing deposits [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 0 0
Total gain (loss) (pre-tax) recognized on cash flow hedges 0 0 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) (1) (2) (3)
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 0 0
Total gain (loss) (pre-tax) recognized on cash flow hedges 0 0 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) (1) (2) (3)
Total gain (loss) (pre-tax) recognized on cash flow hedges $ (1) $ (1) $ (2) $ (3)
[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)