Fair Value Measurements - Recurring Fair Value (Details) - USD ($)
$ in Millions |
Sep. 30, 2020 |
Dec. 31, 2019 |
Sep. 30, 2019 |
| Assets |
|
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
$ 103,101
|
$ 50,364
|
|
| Trading account assets |
255,500
|
229,826
|
|
| Derivative assets, gross |
418,100
|
344,800
|
|
| Derivative assets |
44,297
|
40,485
|
|
| Total available-for-sale debt securities |
233,692
|
245,639
|
|
| Other debt securities carried at fair value |
12,305
|
10,828
|
|
| Loans and leases |
7,234
|
8,335
|
|
| Loans held-for-sale |
1,905
|
3,709
|
|
| Other assets |
12,725
|
15,518
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
626
|
508
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
132,322
|
16,008
|
|
| Derivative liabilities, gross |
413,100
|
337,100
|
|
| Derivative liabilities |
41,728
|
38,229
|
|
| Short-term borrowings |
4,577
|
3,941
|
|
| Long-term debt |
30,455
|
34,975
|
|
| U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
102,878
|
68,528
|
|
| Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
69,864
|
122,528
|
|
| Agency-collateralized mortgage obligations |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
5,837
|
4,641
|
|
| Non-agency residential |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
1,283
|
1,077
|
|
| Commercial |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
16,206
|
15,021
|
|
| Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
3,676
|
3,941
|
|
| Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
17,594
|
17,912
|
|
| Recurring |
|
|
|
| Assets |
|
|
|
| Time deposits placed and other short-term investments |
385
|
1,000
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
103,101
|
50,364
|
|
| Trading account assets |
255,500
|
229,826
|
|
| Netting adjustments |
(373,827)
|
(304,262)
|
|
| Derivative assets |
44,297
|
40,485
|
|
| Total available-for-sale debt securities |
233,692
|
245,639
|
|
| Other debt securities carried at fair value |
12,305
|
10,828
|
|
| Loans and leases |
7,234
|
8,335
|
|
| Loans held-for-sale |
1,905
|
3,709
|
|
| Other assets |
12,725
|
15,518
|
|
| Total assets |
671,144
|
605,704
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
626
|
508
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
132,322
|
16,008
|
|
| Total trading account liabilities |
84,681
|
83,270
|
|
| Netting adjustment |
(371,362)
|
(298,918)
|
|
| Derivative liabilities |
41,728
|
38,229
|
|
| Short-term borrowings |
4,577
|
3,941
|
|
| Accrued expenses and other liabilities |
12,765
|
15,434
|
|
| Long-term debt |
30,455
|
34,975
|
|
| Total liabilities |
307,154
|
192,365
|
|
| Mortgage servicing rights |
$ 1,100
|
$ 1,500
|
|
| Level 3 recurring assets, as a percent of total assets |
0.40%
|
0.42%
|
|
| Level 3 recurring liabilities, as a percent of total liabilities |
0.28%
|
0.27%
|
|
| Recurring | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
$ 45,582
|
$ 53,674
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
11,213
|
13,422
|
|
| Recurring | Corporate securities, trading loans and other |
|
|
|
| Assets |
|
|
|
| Trading account assets |
26,908
|
26,733
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
6,771
|
5,493
|
|
| Recurring | Equity securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
116,319
|
86,455
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
46,000
|
42,294
|
|
| Recurring | Non-U.S. sovereign debt |
|
|
|
| Assets |
|
|
|
| Trading account assets |
36,748
|
28,301
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
20,697
|
22,061
|
|
| Recurring | U.S. government-sponsored agency guaranteed |
|
|
|
| Assets |
|
|
|
| Trading account assets |
21,029
|
24,324
|
|
| Recurring | Mortgage trading loans, ABS and other MBS |
|
|
|
| Assets |
|
|
|
| Trading account assets |
8,914
|
10,339
|
|
| Recurring | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
102,878
|
68,528
|
|
| Other debt securities carried at fair value |
3
|
3
|
|
| Recurring | Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
69,864
|
122,528
|
|
| Other debt securities carried at fair value |
|
3,003
|
|
| Recurring | Agency-collateralized mortgage obligations |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
5,837
|
4,641
|
|
| Recurring | Non-agency residential |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
1,283
|
1,077
|
|
| Other debt securities carried at fair value |
1,209
|
1,334
|
|
| Recurring | Commercial |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
16,206
|
15,021
|
|
| Recurring | Non-U.S. securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
16,354
|
11,991
|
|
| Recurring | Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
3,676
|
3,941
|
|
| Recurring | Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
17,594
|
17,912
|
|
| Recurring | Non-U.S. and other securities |
|
|
|
| Assets |
|
|
|
| Other debt securities carried at fair value |
11,093
|
6,488
|
|
| Recurring | US Government-sponsored enterprises debt securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
21,500
|
26,700
|
|
| Recurring | Securities gegregated for compliance or deposited with clearing organizations |
|
|
|
| Assets |
|
|
|
| Trading account assets |
13,600
|
14,700
|
|
| Recurring | Level 1 |
|
|
|
| Assets |
|
|
|
| Time deposits placed and other short-term investments |
385
|
1,000
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
0
|
0
|
|
| Trading account assets |
135,161
|
107,079
|
|
| Derivative assets, gross |
16,129
|
14,079
|
|
| Total available-for-sale debt securities |
101,693
|
67,332
|
|
| Other debt securities carried at fair value |
5,964
|
403
|
|
| Loans and leases |
0
|
0
|
|
| Loans held-for-sale |
0
|
0
|
|
| Other assets |
6,802
|
11,782
|
|
| Total assets |
266,134
|
201,675
|
|
| 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 |
61,588
|
62,039
|
|
| Derivative liabilities, gross |
17,292
|
11,904
|
|
| Short-term borrowings |
0
|
0
|
|
| Accrued expenses and other liabilities |
8,530
|
13,927
|
|
| Long-term debt |
0
|
0
|
|
| Total liabilities |
87,410
|
87,870
|
|
| Recurring | Level 1 | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
43,143
|
49,517
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
11,013
|
13,140
|
|
| 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 |
82,015
|
53,597
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
40,609
|
38,148
|
|
| Recurring | Level 1 | Non-U.S. sovereign debt |
|
|
|
| Assets |
|
|
|
| Trading account assets |
10,003
|
3,965
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
9,966
|
10,751
|
|
| 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 |
101,693
|
67,332
|
|
| Other debt securities carried at fair value |
3
|
3
|
|
| 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 |
5,961
|
400
|
|
| 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 |
103,101
|
50,364
|
|
| Trading account assets |
116,602
|
118,966
|
|
| Derivative assets, gross |
399,497
|
328,442
|
|
| Total available-for-sale debt securities |
131,297
|
177,708
|
|
| Other debt securities carried at fair value |
5,883
|
10,126
|
|
| Loans and leases |
6,609
|
7,642
|
|
| Loans held-for-sale |
983
|
3,334
|
|
| Other assets |
4,048
|
1,376
|
|
| Total assets |
768,020
|
697,958
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
626
|
508
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
132,322
|
16,008
|
|
| Total trading account liabilities |
23,076
|
21,214
|
|
| Derivative liabilities, gross |
389,769
|
320,479
|
|
| Short-term borrowings |
4,577
|
3,941
|
|
| Accrued expenses and other liabilities |
4,235
|
1,507
|
|
| Long-term debt |
29,485
|
33,826
|
|
| Total liabilities |
584,090
|
397,483
|
|
| Recurring | Level 2 | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
2,439
|
4,157
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
200
|
282
|
|
| Recurring | Level 2 | Corporate securities, trading loans and other |
|
|
|
| Assets |
|
|
|
| Trading account assets |
25,438
|
25,226
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
6,755
|
5,478
|
|
| Recurring | Level 2 | Equity securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
34,097
|
32,619
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
5,390
|
4,144
|
|
| Recurring | Level 2 | Non-U.S. sovereign debt |
|
|
|
| Assets |
|
|
|
| Trading account assets |
26,455
|
23,854
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
10,731
|
11,310
|
|
| Recurring | Level 2 | U.S. government-sponsored agency guaranteed |
|
|
|
| Assets |
|
|
|
| Trading account assets |
20,896
|
24,324
|
|
| Recurring | Level 2 | Mortgage trading loans, ABS and other MBS |
|
|
|
| Assets |
|
|
|
| Trading account assets |
7,277
|
8,786
|
|
| Recurring | Level 2 | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
1,185
|
1,196
|
|
| Other debt securities carried at fair value |
0
|
0
|
|
| Recurring | Level 2 | Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
69,864
|
122,528
|
|
| Other debt securities carried at fair value |
|
3,003
|
|
| Recurring | Level 2 | Agency-collateralized mortgage obligations |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
5,837
|
4,641
|
|
| Recurring | Level 2 | Non-agency residential |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
843
|
653
|
|
| Other debt securities carried at fair value |
751
|
1,035
|
|
| Recurring | Level 2 | Commercial |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
16,206
|
15,021
|
|
| Recurring | Level 2 | Non-U.S. securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
16,340
|
11,989
|
|
| Recurring | Level 2 | Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
3,608
|
3,876
|
|
| Recurring | Level 2 | Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
17,414
|
17,804
|
|
| Recurring | Level 2 | Non-U.S. and other securities |
|
|
|
| Assets |
|
|
|
| Other debt securities carried at fair value |
5,132
|
6,088
|
|
| 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 |
3,737
|
3,781
|
|
| Derivative assets, gross |
2,498
|
2,226
|
$ 3,400
|
| Total available-for-sale debt securities |
702
|
599
|
|
| Other debt securities carried at fair value |
458
|
299
|
|
| Loans and leases |
625
|
693
|
|
| Loans held-for-sale |
922
|
375
|
|
| Other assets |
1,875
|
2,360
|
|
| Total assets |
10,817
|
10,333
|
|
| 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
|
17
|
|
| Derivative liabilities, gross |
6,029
|
4,764
|
$ 4,600
|
| Short-term borrowings |
0
|
0
|
|
| Accrued expenses and other liabilities |
0
|
0
|
|
| Long-term debt |
970
|
1,149
|
|
| Total liabilities |
7,016
|
5,930
|
|
| Mortgage servicing rights |
1,082
|
1,545
|
|
| 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 |
1,470
|
1,507
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
16
|
15
|
|
| Recurring | Level 3 | Equity securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
207
|
239
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
1
|
2
|
|
| Recurring | Level 3 | Non-U.S. sovereign debt |
|
|
|
| Assets |
|
|
|
| Trading account assets |
290
|
482
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
0
|
0
|
|
| Recurring | Level 3 | U.S. government-sponsored agency guaranteed |
|
|
|
| Assets |
|
|
|
| Trading account assets |
133
|
0
|
|
| Recurring | Level 3 | Mortgage trading loans, ABS and other MBS |
|
|
|
| Assets |
|
|
|
| Trading account assets |
1,637
|
1,553
|
|
| 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 |
440
|
424
|
|
| Other debt securities carried at fair value |
458
|
299
|
|
| 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 |
14
|
2
|
|
| Recurring | Level 3 | Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
68
|
65
|
|
| Recurring | Level 3 | Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
180
|
108
|
|
| Recurring | Level 3 | Non-U.S. and other securities |
|
|
|
| Assets |
|
|
|
| Other debt securities carried at fair value |
$ 0
|
$ 0
|
|