v3.26.1
LOANS - Loan-to-Value Ratios Consumer Loans (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income $ 761,616 $ 752,230
Unallocated portfolio layer cumulative basis adjustments   17
Consumer loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 402,391 408,533
Unallocated portfolio layer cumulative basis adjustments 206 343
Consumer loans | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 321,249 327,748
Consumer loans | In offices outside North America    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 79,613 79,062
Consumer loans | Less than or equal to 80% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 110,325 111,472
Consumer loans | Greater than 80% but less than or equal to 100% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 10,552 9,689
Consumer loans | Greater than 100% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 90 116
Consumer loans | LTV not available | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 1,044 984
Consumer loans | Total | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 122,011 122,261
Consumer loans | Residential mortgages | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 119,234 119,389
Consumer loans | Residential mortgages | In offices outside North America    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 23,867 24,041
Consumer loans | Residential mortgages | Less than or equal to 80% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 2,389 12,061
One year prior to current fiscal year 11,431 7,845
Two years prior to current fiscal year 7,074 12,637
Three years prior to current fiscal year 12,038 18,144
Four years prior to current fiscal year 17,775 17,495
Prior 56,938 40,567
Total loans, net of unearned income 107,645 108,749
Consumer loans | Residential mortgages | Less than or equal to 80% | In offices outside North America    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 734 2,576
One year prior to current fiscal year 2,551 2,825
Two years prior to current fiscal year 2,761 2,062
Three years prior to current fiscal year 2,038 2,283
Four years prior to current fiscal year 2,259 2,168
Prior 9,457 7,712
Total loans, net of unearned income $ 19,800 $ 19,626
Loan to value ratio 55.00% 56.00%
Consumer loans | Residential mortgages | Greater than 80% but less than or equal to 100% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year $ 651 $ 4,163
One year prior to current fiscal year 4,445 2,181
Two years prior to current fiscal year 2,102 1,288
Three years prior to current fiscal year 1,247 1,378
Four years prior to current fiscal year 1,461 276
Prior 619 348
Total loans, net of unearned income 10,525 9,634
Consumer loans | Residential mortgages | Greater than 80% but less than or equal to 100% | In offices outside North America    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 61 207
One year prior to current fiscal year 174 275
Two years prior to current fiscal year 229 727
Three years prior to current fiscal year 778 630
Four years prior to current fiscal year 684 648
Prior 1,122 456
Total loans, net of unearned income 3,048 2,943
Consumer loans | Residential mortgages | Greater than 100% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
One year prior to current fiscal year 6 3
Two years prior to current fiscal year 6 3
Three years prior to current fiscal year 0 23
Four years prior to current fiscal year 21 6
Prior 26 28
Total loans, net of unearned income 59 63
Consumer loans | Residential mortgages | Greater than 100% | In offices outside North America    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
One year prior to current fiscal year 0 0
Two years prior to current fiscal year 0 150
Three years prior to current fiscal year 0 415
Four years prior to current fiscal year 268 345
Prior 237 67
Total loans, net of unearned income 505 977
Consumer loans | Residential mortgages | LTV not available | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 1,005 943
Consumer loans | Residential mortgages | LTV not available | In offices outside North America    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 514 495
Consumer loans | Home equity loans | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 2,777 2,872
Consumer loans | Home equity loans | Less than or equal to 80% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 2,680 2,723
Consumer loans | Home equity loans | Greater than 80% but less than or equal to 100% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 27 55
Consumer loans | Home equity loans | Greater than 100% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 31 53
Consumer loans | Home equity loans | LTV not available | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 39 41
Consumer loans | Home equity line of credit (pre-reset) | Less than or equal to 80% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 2,308 2,348
Consumer loans | Home equity line of credit (pre-reset) | Greater than 80% but less than or equal to 100% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 18 42
Consumer loans | Home equity line of credit (pre-reset) | Greater than 100% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 14 32
Consumer loans | Home equity line of credit (post-reset) | Less than or equal to 80% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 372 375
Consumer loans | Home equity line of credit (post-reset) | Greater than 80% but less than or equal to 100% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income 9 13
Consumer loans | Home equity line of credit (post-reset) | Greater than 100% | UNITED STATES    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total loans, net of unearned income $ 17 $ 21