Fair Value Measurements - Recurring Fair Value (Details) - USD ($)
$ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
Jun. 30, 2018 |
| Assets |
|
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
$ 54,257
|
$ 56,399
|
|
| Trading account assets |
251,987
|
214,348
|
|
| Derivative assets, gross |
354,700
|
328,800
|
|
| Derivative assets |
44,912
|
43,725
|
|
| Total available-for-sale debt securities |
235,979
|
229,366
|
|
| Other debt securities carried at fair value |
10,115
|
8,735
|
|
| Loans and leases |
7,863
|
4,349
|
|
| Loans held-for-sale |
2,388
|
2,942
|
|
| Other assets |
22,074
|
19,739
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
604
|
492
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
19,866
|
28,875
|
|
| Derivative liabilities, gross |
348,300
|
317,800
|
|
| Derivative liabilities |
38,380
|
37,891
|
|
| Short-term borrowings |
2,403
|
1,648
|
|
| Long-term debt |
35,198
|
27,689
|
|
| U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
56,819
|
54,923
|
|
| Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
125,569
|
121,826
|
|
| Agency-collateralized mortgage obligations |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
5,210
|
5,530
|
|
| Non-agency residential |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
2,022
|
1,917
|
|
| Commercial |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
14,525
|
14,078
|
|
| Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
3,695
|
4,410
|
|
| Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
16,954
|
17,376
|
|
| Recurring |
|
|
|
| Assets |
|
|
|
| Time deposits placed and other short-term investments |
1,179
|
1,214
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
54,257
|
56,399
|
|
| Trading account assets |
251,987
|
214,348
|
|
| Netting adjustments |
(309,771)
|
(285,121)
|
|
| Derivative assets |
44,912
|
43,725
|
|
| Total available-for-sale debt securities |
235,979
|
229,366
|
|
| Other debt securities carried at fair value |
10,115
|
8,735
|
|
| Loans and leases |
7,863
|
4,349
|
|
| Loans held-for-sale |
2,388
|
2,942
|
|
| Other assets |
22,074
|
19,739
|
|
| Total assets |
630,754
|
580,817
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
604
|
492
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
19,866
|
28,875
|
|
| Total trading account liabilities |
82,150
|
68,220
|
|
| Netting adjustment |
(309,934)
|
(279,882)
|
|
| Derivative liabilities |
38,380
|
37,891
|
|
| Short-term borrowings |
2,403
|
1,648
|
|
| Accrued expenses and other liabilities |
22,811
|
20,075
|
|
| Long-term debt |
35,198
|
27,689
|
|
| Total liabilities |
201,412
|
184,890
|
|
| Mortgage servicing rights |
$ 1,700
|
$ 2,000
|
|
| Level 3 recurring assets, as a percent of total assets |
0.47%
|
0.51%
|
|
| Level 3 recurring liabilities, as a percent of total liabilities |
0.26%
|
0.25%
|
|
| Recurring | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
$ 43,437
|
$ 54,724
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
16,963
|
8,655
|
|
| Recurring | Corporate securities, trading loans and other |
|
|
|
| Assets |
|
|
|
| Trading account assets |
29,295
|
26,188
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
7,532
|
5,122
|
|
| Recurring | Equity securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
103,085
|
77,279
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
35,741
|
37,809
|
|
| Recurring | Non-U.S. sovereign debt |
|
|
|
| Assets |
|
|
|
| Trading account assets |
41,078
|
25,493
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
21,914
|
16,634
|
|
| Recurring | U.S. government-sponsored agency guaranteed |
|
|
|
| Assets |
|
|
|
| Trading account assets |
24,769
|
19,586
|
|
| Recurring | Mortgage trading loans, ABS and other MBS |
|
|
|
| Assets |
|
|
|
| Trading account assets |
10,323
|
11,078
|
|
| Recurring | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
56,819
|
54,923
|
|
| Other debt securities carried at fair value |
|
1,282
|
|
| Recurring | Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
125,569
|
121,826
|
|
| Recurring | Agency-collateralized mortgage obligations |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
5,210
|
5,530
|
|
| Recurring | Non-agency residential |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
2,022
|
1,917
|
|
| Other debt securities carried at fair value |
1,598
|
1,606
|
|
| Recurring | Commercial |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
14,525
|
14,078
|
|
| Recurring | Non-U.S. securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
11,185
|
9,306
|
|
| Other debt securities carried at fair value |
8,514
|
5,844
|
|
| Recurring | Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
3,695
|
4,410
|
|
| Other debt securities carried at fair value |
3
|
3
|
|
| Recurring | Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
16,954
|
17,376
|
|
| Recurring | US Government-sponsored enterprises debt securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
25,200
|
20,200
|
|
| Recurring | Securities gegregated for compliance or deposited with clearing organizations |
|
|
|
| Assets |
|
|
|
| Trading account assets |
16,000
|
16,600
|
|
| Recurring | Level 1 |
|
|
|
| Assets |
|
|
|
| Time deposits placed and other short-term investments |
1,179
|
1,214
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
0
|
0
|
|
| Trading account assets |
126,165
|
112,789
|
|
| Derivative assets, gross |
14,574
|
9,967
|
|
| Total available-for-sale debt securities |
55,574
|
53,663
|
|
| Other debt securities carried at fair value |
2,838
|
1,772
|
|
| Loans and leases |
0
|
0
|
|
| Loans held-for-sale |
0
|
0
|
|
| Other assets |
17,689
|
15,032
|
|
| Total assets |
218,019
|
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 |
60,840
|
49,085
|
|
| Derivative liabilities, gross |
13,435
|
9,931
|
|
| Short-term borrowings |
0
|
0
|
|
| Accrued expenses and other liabilities |
20,773
|
18,096
|
|
| Long-term debt |
0
|
0
|
|
| Total liabilities |
95,048
|
77,112
|
|
| Recurring | Level 1 | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
42,612
|
53,131
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
14,891
|
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 |
72,274
|
53,840
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
32,135
|
33,739
|
|
| Recurring | Level 1 | Non-U.S. sovereign debt |
|
|
|
| Assets |
|
|
|
| Trading account assets |
11,279
|
5,818
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
13,814
|
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 |
55,574
|
53,663
|
|
| Other debt securities carried at fair value |
|
1,282
|
|
| Recurring | Level 1 | Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
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
|
|
| Other debt securities carried at fair value |
2,838
|
490
|
|
| Recurring | Level 1 | Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Other debt securities carried at fair value |
0
|
0
|
|
| Recurring | Level 1 | Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| 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 |
54,257
|
56,399
|
|
| Trading account assets |
122,263
|
97,625
|
|
| Derivative assets, gross |
336,706
|
315,413
|
|
| Total available-for-sale debt securities |
179,832
|
175,097
|
|
| Other debt securities carried at fair value |
7,004
|
6,791
|
|
| Loans and leases |
7,508
|
4,011
|
|
| Loans held-for-sale |
1,902
|
2,400
|
|
| Other assets |
1,834
|
1,775
|
|
| Total assets |
711,306
|
659,511
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
604
|
492
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
19,866
|
28,875
|
|
| Total trading account liabilities |
21,295
|
19,117
|
|
| Derivative liabilities, gross |
330,362
|
303,441
|
|
| Short-term borrowings |
2,403
|
1,648
|
|
| Accrued expenses and other liabilities |
2,038
|
1,979
|
|
| Long-term debt |
34,296
|
26,872
|
|
| Total liabilities |
410,864
|
382,424
|
|
| Recurring | Level 2 | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
825
|
1,593
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
2,072
|
761
|
|
| Recurring | Level 2 | Corporate securities, trading loans and other |
|
|
|
| Assets |
|
|
|
| Trading account assets |
27,902
|
24,630
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
7,519
|
5,104
|
|
| Recurring | Level 2 | Equity securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
30,515
|
23,163
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
3,604
|
4,070
|
|
| Recurring | Level 2 | Non-U.S. sovereign debt |
|
|
|
| Assets |
|
|
|
| Trading account assets |
29,318
|
19,210
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
8,100
|
9,182
|
|
| Recurring | Level 2 | U.S. government-sponsored agency guaranteed |
|
|
|
| Assets |
|
|
|
| Trading account assets |
24,769
|
19,586
|
|
| Recurring | Level 2 | Mortgage trading loans, ABS and other MBS |
|
|
|
| Assets |
|
|
|
| Trading account assets |
8,934
|
9,443
|
|
| Recurring | Level 2 | U.S. Treasury and agency securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
1,245
|
1,260
|
|
| Other debt securities carried at fair value |
|
0
|
|
| Recurring | Level 2 | Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
125,569
|
121,826
|
|
| Recurring | Level 2 | Agency-collateralized mortgage obligations |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
5,210
|
5,530
|
|
| Recurring | Level 2 | Non-agency residential |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
1,454
|
1,320
|
|
| Other debt securities carried at fair value |
1,325
|
1,434
|
|
| Recurring | Level 2 | Commercial |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
14,525
|
14,078
|
|
| Recurring | Level 2 | Non-U.S. securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
11,183
|
9,304
|
|
| Other debt securities carried at fair value |
5,676
|
5,354
|
|
| Recurring | Level 2 | Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
3,692
|
4,403
|
|
| Other debt securities carried at fair value |
3
|
3
|
|
| Recurring | Level 2 | Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
16,954
|
17,376
|
|
| 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 |
3,559
|
3,934
|
|
| Derivative assets, gross |
3,403
|
3,466
|
$ 4,500
|
| Total available-for-sale debt securities |
573
|
606
|
|
| Other debt securities carried at fair value |
273
|
172
|
|
| Loans and leases |
355
|
338
|
|
| Loans held-for-sale |
486
|
542
|
|
| Other assets |
2,551
|
2,932
|
|
| Total assets |
11,200
|
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 |
15
|
18
|
|
| Derivative liabilities, gross |
4,517
|
4,401
|
$ 6,100
|
| Short-term borrowings |
0
|
0
|
|
| Accrued expenses and other liabilities |
0
|
0
|
|
| Long-term debt |
902
|
817
|
|
| Total liabilities |
5,434
|
5,236
|
|
| Mortgage servicing rights |
1,700
|
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 |
1,393
|
1,558
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
13
|
18
|
|
| Recurring | Level 3 | Equity securities |
|
|
|
| Assets |
|
|
|
| Trading account assets |
296
|
276
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
2
|
0
|
|
| Recurring | Level 3 | Non-U.S. sovereign debt |
|
|
|
| Assets |
|
|
|
| Trading account assets |
481
|
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 |
1,389
|
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
|
|
| Recurring | Level 3 | Agency |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
0
|
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 |
568
|
597
|
|
| Other debt securities carried at fair value |
273
|
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
|
|
| Other debt securities carried at fair value |
0
|
0
|
|
| Recurring | Level 3 | Other taxable securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
3
|
7
|
|
| Other debt securities carried at fair value |
0
|
0
|
|
| Recurring | Level 3 | Tax-exempt securities |
|
|
|
| Assets |
|
|
|
| Total available-for-sale debt securities |
$ 0
|
$ 0
|
|