Fair Value Measurements - Recurring Fair Value (Details) - USD ($)
$ in Millions |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
| Assets |
|
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
$ 50,364
|
$ 56,399
|
|
| Trading account assets |
229,826
|
214,348
|
|
| Derivative assets, gross |
344,800
|
328,800
|
|
| Derivative assets |
40,485
|
43,725
|
|
| Total available-for-sale debt securities |
245,639
|
229,366
|
|
| Other debt securities carried at fair value |
10,828
|
8,735
|
|
| Loans and leases |
8,335
|
4,349
|
|
| Loans held-for-sale |
3,709
|
2,942
|
|
| Other assets |
15,518
|
19,739
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
508
|
492
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
16,008
|
28,875
|
|
| Derivative liabilities, gross |
337,100
|
317,800
|
|
| Derivative liabilities |
38,229
|
37,891
|
|
| Short-term borrowings |
3,941
|
1,648
|
|
| Long-term debt |
34,975
|
27,689
|
|
| U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
68,528
|
54,923
|
|
| Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
122,528
|
121,826
|
|
| Agency-collateralized mortgage obligations |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
4,641
|
5,530
|
|
| Non-agency residential |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
1,077
|
1,917
|
|
| Commercial |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
15,021
|
14,078
|
|
| Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
3,941
|
4,410
|
|
| Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
17,912
|
17,376
|
|
| Recurring |
|
|
|
| Assets |
|
|
|
| Time deposits placed and other short-term investments |
1,000
|
1,214
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
50,364
|
56,399
|
|
| Trading account assets |
229,826
|
214,348
|
|
| Netting adjustments |
(304,262)
|
(285,121)
|
|
| Derivative assets |
40,485
|
43,725
|
|
| Total available-for-sale debt securities |
245,639
|
229,366
|
|
| Other debt securities carried at fair value |
10,828
|
8,735
|
|
| Loans and leases |
8,335
|
4,349
|
|
| Loans held-for-sale |
3,709
|
2,942
|
|
| Other assets |
15,518
|
19,739
|
|
| Total assets |
605,704
|
580,817
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
508
|
492
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
16,008
|
28,875
|
|
| Total trading account liabilities |
83,270
|
68,220
|
|
| Netting adjustment |
(298,918)
|
(279,882)
|
|
| Derivative liabilities |
38,229
|
37,891
|
|
| Short-term borrowings |
3,941
|
1,648
|
|
| Accrued expenses and other liabilities |
15,434
|
20,075
|
|
| Long-term debt |
34,975
|
27,689
|
|
| Total liabilities |
192,365
|
184,890
|
|
| Mortgage servicing rights |
$ 1,500
|
$ 2,000
|
|
| Level 3 recurring assets, as a percent of total assets |
0.42%
|
0.51%
|
|
| Level 3 recurring liabilities, as a percent of total liabilities |
0.27%
|
0.25%
|
|
| Recurring | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
$ 53,674
|
$ 54,724
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
13,422
|
8,655
|
|
| Recurring | Corporate securities, trading loans and other |
|
|
|
| Assets |
|
|
|
| Trading account assets |
26,733
|
26,188
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
5,493
|
5,122
|
|
| Recurring | Equity securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
86,455
|
77,279
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
42,294
|
37,809
|
|
| Recurring | Non-U.S. sovereign debt |
|
|
|
| Assets |
|
|
|
| Trading account assets |
28,301
|
25,493
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
22,061
|
16,634
|
|
| Recurring | U.S. government-sponsored agency guaranteed |
|
|
|
| Assets |
|
|
|
| Trading account assets |
24,324
|
19,586
|
|
| Recurring | Mortgage trading loans, ABS and other MBS |
|
|
|
| Assets |
|
|
|
| Trading account assets |
10,339
|
11,078
|
|
| Recurring | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
68,528
|
54,923
|
|
| Other debt securities carried at fair value |
3
|
1,282
|
|
| Recurring | Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
122,528
|
121,826
|
|
| Other debt securities carried at fair value |
3,003
|
|
|
| Recurring | Agency-collateralized mortgage obligations |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
4,641
|
5,530
|
|
| Recurring | Non-agency residential |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
1,077
|
1,917
|
|
| Other debt securities carried at fair value |
1,334
|
1,606
|
|
| Recurring | Commercial |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
15,021
|
14,078
|
|
| Recurring | Non-U.S. securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
11,991
|
9,306
|
|
| Recurring | Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
3,941
|
4,410
|
|
| Recurring | Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
17,912
|
17,376
|
|
| Recurring | Non-U.S. and other securities |
|
|
|
| Assets |
|
|
|
| Other debt securities carried at fair value |
6,488
|
5,847
|
|
| Recurring | US Government-sponsored enterprises debt securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
26,700
|
20,200
|
|
| Recurring | Securities gegregated for compliance or deposited with clearing organizations |
|
|
|
| Assets |
|
|
|
| Trading account assets |
14,700
|
16,600
|
|
| Recurring | Level 1 |
|
|
|
| Assets |
|
|
|
| Time deposits placed and other short-term investments |
1,000
|
1,214
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
0
|
0
|
|
| Trading account assets |
107,079
|
112,789
|
|
| Derivative assets, gross |
14,079
|
9,967
|
|
| Total available-for-sale debt securities |
67,332
|
53,663
|
|
| Other debt securities carried at fair value |
403
|
1,772
|
|
| Loans and leases |
0
|
0
|
|
| Loans held-for-sale |
0
|
0
|
|
| Other assets |
11,782
|
15,032
|
|
| Total assets |
201,675
|
194,437
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
0
|
0
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
0
|
0
|
|
| Total trading account liabilities |
62,039
|
49,085
|
|
| Derivative liabilities, gross |
11,904
|
9,931
|
|
| Short-term borrowings |
0
|
0
|
|
| Accrued expenses and other liabilities |
13,927
|
18,096
|
|
| Long-term debt |
0
|
0
|
|
| Total liabilities |
87,870
|
77,112
|
|
| Recurring | Level 1 | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
49,517
|
53,131
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
13,140
|
7,894
|
|
| Recurring | Level 1 | Corporate securities, trading loans and other |
|
|
|
| Assets |
|
|
|
| Trading account assets |
0
|
0
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
0
|
0
|
|
| Recurring | Level 1 | Equity securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
53,597
|
53,840
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
38,148
|
33,739
|
|
| Recurring | Level 1 | Non-U.S. sovereign debt |
|
|
|
| Assets |
|
|
|
| Trading account assets |
3,965
|
5,818
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
10,751
|
7,452
|
|
| Recurring | Level 1 | U.S. government-sponsored agency guaranteed |
|
|
|
| Assets |
|
|
|
| Trading account assets |
0
|
0
|
|
| Recurring | Level 1 | Mortgage trading loans, ABS and other MBS |
|
|
|
| Assets |
|
|
|
| Trading account assets |
0
|
0
|
|
| Recurring | Level 1 | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
67,332
|
53,663
|
|
| Other debt securities carried at fair value |
3
|
1,282
|
|
| Recurring | Level 1 | Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Other debt securities carried at fair value |
0
|
|
|
| Recurring | Level 1 | Agency-collateralized mortgage obligations |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 1 | Non-agency residential |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Other debt securities carried at fair value |
0
|
0
|
|
| Recurring | Level 1 | Commercial |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 1 | Non-U.S. securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 1 | Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 1 | Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 1 | Non-U.S. and other securities |
|
|
|
| Assets |
|
|
|
| Other debt securities carried at fair value |
400
|
490
|
|
| Recurring | Level 2 |
|
|
|
| Assets |
|
|
|
| Time deposits placed and other short-term investments |
0
|
0
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
50,364
|
56,399
|
|
| Trading account assets |
118,966
|
97,625
|
|
| Derivative assets, gross |
328,442
|
315,413
|
|
| Total available-for-sale debt securities |
177,708
|
175,097
|
|
| Other debt securities carried at fair value |
10,126
|
6,791
|
|
| Loans and leases |
7,642
|
4,011
|
|
| Loans held-for-sale |
3,334
|
2,400
|
|
| Other assets |
1,376
|
1,775
|
|
| Total assets |
697,958
|
659,511
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
508
|
492
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
16,008
|
28,875
|
|
| Total trading account liabilities |
21,214
|
19,117
|
|
| Derivative liabilities, gross |
320,479
|
303,441
|
|
| Short-term borrowings |
3,941
|
1,648
|
|
| Accrued expenses and other liabilities |
1,507
|
1,979
|
|
| Long-term debt |
33,826
|
26,872
|
|
| Total liabilities |
397,483
|
382,424
|
|
| Recurring | Level 2 | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
4,157
|
1,593
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
282
|
761
|
|
| Recurring | Level 2 | Corporate securities, trading loans and other |
|
|
|
| Assets |
|
|
|
| Trading account assets |
25,226
|
24,630
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
5,478
|
5,104
|
|
| Recurring | Level 2 | Equity securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
32,619
|
23,163
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
4,144
|
4,070
|
|
| Recurring | Level 2 | Non-U.S. sovereign debt |
|
|
|
| Assets |
|
|
|
| Trading account assets |
23,854
|
19,210
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
11,310
|
9,182
|
|
| Recurring | Level 2 | U.S. government-sponsored agency guaranteed |
|
|
|
| Assets |
|
|
|
| Trading account assets |
24,324
|
19,586
|
|
| Recurring | Level 2 | Mortgage trading loans, ABS and other MBS |
|
|
|
| Assets |
|
|
|
| Trading account assets |
8,786
|
9,443
|
|
| Recurring | Level 2 | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
1,196
|
1,260
|
|
| Other debt securities carried at fair value |
0
|
0
|
|
| Recurring | Level 2 | Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
122,528
|
121,826
|
|
| Other debt securities carried at fair value |
3,003
|
|
|
| Recurring | Level 2 | Agency-collateralized mortgage obligations |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
4,641
|
5,530
|
|
| Recurring | Level 2 | Non-agency residential |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
653
|
1,320
|
|
| Other debt securities carried at fair value |
1,035
|
1,434
|
|
| Recurring | Level 2 | Commercial |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
15,021
|
14,078
|
|
| Recurring | Level 2 | Non-U.S. securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
11,989
|
9,304
|
|
| Recurring | Level 2 | Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
3,876
|
4,403
|
|
| Recurring | Level 2 | Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
17,804
|
17,376
|
|
| Recurring | Level 2 | Non-U.S. and other securities |
|
|
|
| Assets |
|
|
|
| Other debt securities carried at fair value |
6,088
|
5,357
|
|
| Recurring | Level 3 |
|
|
|
| Assets |
|
|
|
| Time deposits placed and other short-term investments |
0
|
0
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
0
|
0
|
|
| Trading account assets |
3,781
|
3,934
|
|
| Derivative assets, gross |
2,226
|
3,466
|
$ 4,100
|
| Total available-for-sale debt securities |
599
|
606
|
|
| Other debt securities carried at fair value |
299
|
172
|
|
| Loans and leases |
693
|
338
|
|
| Loans held-for-sale |
375
|
542
|
|
| Other assets |
2,360
|
2,932
|
|
| Total assets |
10,333
|
11,990
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
0
|
0
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
0
|
0
|
|
| Total trading account liabilities |
17
|
18
|
|
| Derivative liabilities, gross |
4,764
|
4,401
|
$ 5,800
|
| Short-term borrowings |
0
|
0
|
|
| Accrued expenses and other liabilities |
0
|
0
|
|
| Long-term debt |
1,149
|
817
|
|
| Total liabilities |
5,930
|
5,236
|
|
| Mortgage servicing rights |
1,545
|
2,042
|
|
| Recurring | Level 3 | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
0
|
0
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
0
|
0
|
|
| Recurring | Level 3 | Corporate securities, trading loans and other |
|
|
|
| Assets |
|
|
|
| Trading account assets |
1,507
|
1,558
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
15
|
18
|
|
| Recurring | Level 3 | Equity securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
239
|
276
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
2
|
0
|
|
| Recurring | Level 3 | Non-U.S. sovereign debt |
|
|
|
| Assets |
|
|
|
| Trading account assets |
482
|
465
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
0
|
0
|
|
| Recurring | Level 3 | U.S. government-sponsored agency guaranteed |
|
|
|
| Assets |
|
|
|
| Trading account assets |
0
|
0
|
|
| Recurring | Level 3 | Mortgage trading loans, ABS and other MBS |
|
|
|
| Assets |
|
|
|
| Trading account assets |
1,553
|
1,635
|
|
| Recurring | Level 3 | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Other debt securities carried at fair value |
0
|
0
|
|
| Recurring | Level 3 | Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Other debt securities carried at fair value |
0
|
|
|
| Recurring | Level 3 | Agency-collateralized mortgage obligations |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 3 | Non-agency residential |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
424
|
597
|
|
| Other debt securities carried at fair value |
299
|
172
|
|
| Recurring | Level 3 | Commercial |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 3 | Non-U.S. securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
2
|
2
|
|
| Recurring | Level 3 | Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
65
|
7
|
|
| Recurring | Level 3 | Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
108
|
0
|
|
| Recurring | Level 3 | Non-U.S. and other securities |
|
|
|
| Assets |
|
|
|
| Other debt securities carried at fair value |
$ 0
|
$ 0
|
|