v3.25.2
Allowance for Credit Losses - Summary (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Allowance for Credit Losses      
Beginning balance $ 24,345 $ 22,420 $ 22,420
Gross charge-offs 5,760 5,107  
Gross recoveries collected (1,018) (920)  
Net charge-offs/(recoveries) 4,742 4,187  
Provision for loan losses 5,344 4,758  
Other 6 0  
Ending balance 24,953 22,991 24,345
Allowance for lending-related commitments      
Beginning balance 2,101 1,974 1,974
Provision for lending-related commitments 831 94  
Other 0 0  
Ending balance 2,932 2,068 2,101
Total allowance for investment securities 108 177 152
Total allowance for credit losses 27,993 25,236  
Allowance for loan losses by impairment methodology      
Asset-specific 98 (294)  
Portfolio-based 24,855 23,285  
Total allowance for loan losses 24,953 22,991 24,345
Loans by impairment methodology      
Asset-specific 7,414 6,317  
Portfolio-based 1,338,059 1,266,730  
Total retained loans 1,345,473 1,273,047 1,299,590
Allowance for lending-related commitments by impairment methodology      
Asset-specific 167 107  
Portfolio-based 2,765 1,961  
Total allowance for lending-related commitments 2,932 2,068 2,101
Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract]      
Asset-specific 922 541  
Portfolio-based 561,267 539,232  
Total lending-related commitments 562,189 539,773  
CIB      
Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract]      
Allowance for credit losses associated with accounts receivable 288 278  
Collateral-dependent loans      
Allowance for Credit Losses      
Net charge-offs/(recoveries) 103 137  
Collateral-dependent loans      
Loans measured at fair value of collateral less cost to sell 4,517 4,319  
Consumer, excluding credit card      
Allowance for Credit Losses      
Beginning balance 1,807 1,856 1,856
Gross charge-offs 540 661  
Gross recoveries collected (248) (343)  
Net charge-offs/(recoveries) 292 318  
Provision for loan losses 334 204  
Other 0 1  
Ending balance 1,849 1,743 1,807
Allowance for lending-related commitments      
Beginning balance 82 75 75
Provision for lending-related commitments 1 17  
Other 0 0  
Ending balance 83 92 82
Total allowance for credit losses 1,932 1,835  
Allowance for loan losses by impairment methodology      
Asset-specific (683) (856)  
Portfolio-based 2,532 2,599  
Total allowance for loan losses 1,849 1,743 1,807
Loans by impairment methodology      
Asset-specific 2,895 3,034  
Portfolio-based 368,960 379,761  
Total retained loans 371,855 382,795 376,334
Allowance for lending-related commitments by impairment methodology      
Asset-specific 0 0  
Portfolio-based 83 92  
Total allowance for lending-related commitments 83 92 82
Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract]      
Asset-specific 0 0  
Portfolio-based 26,390 27,375  
Total lending-related commitments 26,390 27,375  
Credit card lending-related commitments not permitted to have an allowance for credit losses 20,700 19,800  
Consumer, excluding credit card | Collateral-dependent loans      
Allowance for Credit Losses      
Net charge-offs/(recoveries) (5) 3  
Collateral-dependent loans      
Loans measured at fair value of collateral less cost to sell 2,754 2,978  
Credit card      
Allowance for Credit Losses      
Beginning balance 14,600 12,450 12,450
Gross charge-offs 4,616 3,998  
Gross recoveries collected (698) (482)  
Net charge-offs/(recoveries) 3,918 3,516  
Provision for loan losses 4,319 4,266  
Other 0 0  
Ending balance 15,001 13,200 14,600
Allowance for lending-related commitments      
Beginning balance 0 0 0
Provision for lending-related commitments 0 0  
Other 0 0  
Ending balance 0 0 0
Total allowance for credit losses 15,001 13,200  
Allowance for loan losses by impairment methodology      
Asset-specific 0 0  
Portfolio-based 15,001 13,200  
Total allowance for loan losses 15,001 13,200 14,600
Loans by impairment methodology      
Asset-specific 0 0  
Portfolio-based 232,943 216,100  
Total retained loans 232,943 216,100  
Allowance for lending-related commitments by impairment methodology      
Asset-specific 0 0  
Portfolio-based 0 0  
Total allowance for lending-related commitments 0 0 0
Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract]      
Asset-specific 0 0  
Portfolio-based 321 0  
Total lending-related commitments 321 0  
Credit card lending-related commitments not permitted to have an allowance for credit losses 1,000,000 964,700  
Credit card | Collateral-dependent loans      
Allowance for Credit Losses      
Net charge-offs/(recoveries) 0 0  
Collateral-dependent loans      
Loans measured at fair value of collateral less cost to sell 0 0  
Wholesale      
Allowance for Credit Losses      
Beginning balance 7,938 8,114 8,114
Gross charge-offs 604 448  
Gross recoveries collected (72) (95)  
Net charge-offs/(recoveries) 532 353  
Provision for loan losses 691 288  
Other 6 (1)  
Ending balance 8,103 8,048 7,938
Allowance for lending-related commitments      
Beginning balance 2,019 1,899 1,899
Provision for lending-related commitments 830 77  
Other 0 0  
Ending balance 2,849 1,976 2,019
Total allowance for credit losses 10,952 10,024  
Allowance for loan losses by impairment methodology      
Asset-specific 781 562  
Portfolio-based 7,322 7,486  
Total allowance for loan losses 8,103 8,048 7,938
Loans by impairment methodology      
Asset-specific 4,519 3,283  
Portfolio-based 736,156 670,869  
Total retained loans 740,675 674,152 690,396
Allowance for lending-related commitments by impairment methodology      
Asset-specific 167 107  
Portfolio-based 2,682 1,869  
Total allowance for lending-related commitments 2,849 1,976 $ 2,019
Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract]      
Asset-specific 922 541  
Portfolio-based 534,556 511,857  
Total lending-related commitments 535,478 512,398  
Credit card lending-related commitments not permitted to have an allowance for credit losses 24,200 32,600  
Wholesale | Collateral-dependent loans      
Allowance for Credit Losses      
Net charge-offs/(recoveries) 108 134  
Collateral-dependent loans      
Loans measured at fair value of collateral less cost to sell $ 1,763 $ 1,341