v3.26.1
ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses Roll Forward (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Allowance for credit losses          
Allowance for credit losses on loans (ACLL) at beginning of period $ 19,636 $ 18,726 $ 19,247 $ 18,574  
Gross credit losses on loans (2,981) (2,723) (5,801) (5,649)  
Gross recoveries on loans 577 489 1,189 956  
Net credit losses (NCLs) on loans (2,404) (2,234) (4,612) (4,693)  
Net reserve builds (releases) for loans 312 249 613 476  
Net specific reserve builds (releases) for loans (113) (6) (17) (131)  
Total provision for credit losses on loans (PCLL) 2,603 2,477 5,208 5,038  
Other, net (see table below) 48 154 40 204  
ACLL at end of period 19,961 19,123 19,961 19,123  
Allowance for credit losses on unfunded commitments          
Allowance for credit losses on unfunded commitments (ACLUC) at beginning of period 2,013 1,720 1,833 1,601  
Provision (release) for credit losses on ACLUC(3) (97) (19) 87 89  
Other, net (17) 20 (21) 31  
ACLUC at end of period 1,899 1,721 1,899 1,721  
Total ACLL and ACLUC 21,860 20,844 21,860 20,844  
Allowance for credit losses on other assets          
Allowance for credit losses on other assets at beginning of year 186 2,206 147 1,865  
NCLs on other assets (5) (5) (8) (18)  
Provision for credit losses on other assets (2) 381 31 420  
Other, net (5) 117 4 432  
Allowance for credit losses on other assets at end of quarter 174 2,699 174 2,699  
Allowance for credit losses on HTM debt securities          
Allowance for credit losses on HTM debt securities at beginning of period 116 130 146 137  
Provision (release) for credit losses on HTM debt securities 1 7 (29) 2  
Other, net 0 (1) 0 (3)  
Allowance for credit losses on HTM debt securities at end of period 117 136 117 136  
Total ACL 22,151 23,679 22,151 23,679 $ 21,373
Sales or transfers of various consumer loan portfolios to HFS          
Reclasses of consumer ACLL to HFS 0 (29) 0 (29)  
FX translation and other 48 183 40 233  
Other, net (ACLL) 48 154 40 204  
Reclassification (5) 117 4 432  
Allowance purchased with credit deterioration at par value 120   120    
Deposits with banks          
Allowance for credit losses on other assets          
Allowance for credit losses on other assets at beginning of year 32 19 23 25  
Provision for credit losses on other assets (14) 21 (6) 15  
Allowance for credit losses on other assets at end of quarter 18 40 18 40  
Sales or transfers of various consumer loan portfolios to HFS          
Reclassification 0 0 1 0  
Corporate loans          
Allowance for credit losses          
Allowance for credit losses on loans (ACLL) at beginning of period 3,339 2,725 3,053 2,556  
Gross credit losses on loans (153) (63) (195) (262)  
Gross recoveries on loans 19 14 53 31  
Net credit losses (NCLs) on loans (134) (49) (142) (231)  
Net reserve builds (releases) for loans 220 265 423 544  
Net specific reserve builds (releases) for loans (112) (6) (16) (131)  
Other, net (see table below) 4 39 (9) 54  
ACLL at end of period 3,451 3,023 3,451 3,023  
Sales or transfers of various consumer loan portfolios to HFS          
Other, net (ACLL) 4 39 (9) 54  
Consumer loans          
Allowance for credit losses          
Allowance for credit losses on loans (ACLL) at beginning of period 16,297 16,001 16,194 16,018  
Gross credit losses on loans (2,828) (2,660) (5,606) (5,387)  
Gross recoveries on loans 558 475 1,136 925  
Net credit losses (NCLs) on loans (2,270) (2,185) (4,470) (4,462)  
Net reserve builds (releases) for loans 92 (16) 190 (68)  
Net specific reserve builds (releases) for loans (1) 0 (1) 0  
Other, net (see table below) 44 115 49 150  
ACLL at end of period 16,510 16,100 16,510 16,100  
Sales or transfers of various consumer loan portfolios to HFS          
Other, net (ACLL) $ 44 $ 115 $ 49 $ 150