Fair Value Measurements - Recurring Fair Value (Details) - USD ($)
$ in Millions |
Jun. 30, 2018 |
Dec. 31, 2017 |
Jun. 30, 2017 |
| Financial assets |
|
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
$ 59,763
|
$ 52,906
|
|
| Trading account assets |
203,420
|
209,358
|
|
| Derivative assets, gross |
360,600
|
351,600
|
|
| Derivative assets |
45,210
|
37,762
|
|
| Total available-for-sale debt securities |
262,119
|
302,631
|
|
| Other debt securities carried at fair value |
13,137
|
12,486
|
|
| Loans and leases |
6,227
|
5,710
|
|
| Loans held-for-sale |
2,845
|
2,156
|
|
| Other assets |
21,883
|
22,581
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
513
|
449
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
32,724
|
36,182
|
|
| Gross Derivative Liabilities |
343,800
|
346,000
|
|
| Derivative liabilities |
33,605
|
34,300
|
|
| Short-term borrowings |
3,396
|
1,494
|
|
| Long-term debt |
28,377
|
31,786
|
|
| Derivative liabilities |
|
|
|
| Assets and Liabilities, Recurring Basis, Supplemental Information: |
|
|
|
| Liabilities transferred from Level 1 to Level 2 |
413
|
3,000
|
|
| Liabilities transferred from Level 2 to Level 1 |
1,000
|
608
|
|
| Derivative assets |
|
|
|
| Assets and Liabilities, Recurring Basis, Supplemental Information: |
|
|
|
| Assets transferred from Level 1 to Level 2 |
967
|
4,200
|
|
| Assets transferred from Level 2 to Level 1 |
1,500
|
758
|
|
| U.S. Treasury and agency securities | Trading Securities |
|
|
|
| Assets and Liabilities, Recurring Basis, Supplemental Information: |
|
|
|
| Assets transferred from Level 1 to Level 2 |
|
1,100
|
|
| Equity securities | Trading Securities |
|
|
|
| Assets and Liabilities, Recurring Basis, Supplemental Information: |
|
|
|
| Liabilities transferred from Level 1 to Level 2 |
2,700
|
3,100
|
|
| Liabilities transferred from Level 2 to Level 1 |
2,400
|
4,300
|
|
| Equity securities | Trading Securities |
|
|
|
| Assets and Liabilities, Recurring Basis, Supplemental Information: |
|
|
|
| Assets transferred from Level 1 to Level 2 |
6,200
|
5,300
|
|
| Assets transferred from Level 2 to Level 1 |
5,300
|
14,100
|
|
| Non-U.S. sovereign debt | Trading Securities |
|
|
|
| Assets and Liabilities, Recurring Basis, Supplemental Information: |
|
|
|
| Liabilities transferred from Level 1 to Level 2 |
|
1,500
|
|
| Non-U.S. sovereign debt | Trading Securities |
|
|
|
| Assets and Liabilities, Recurring Basis, Supplemental Information: |
|
|
|
| Assets transferred from Level 1 to Level 2 |
|
3,300
|
|
| U.S. Treasury and agency securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
52,734
|
53,523
|
|
| Agency |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
157,000
|
192,929
|
|
| Agency-collateralized mortgage obligations |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
6,035
|
6,804
|
|
| Other debt securities carried at fair value |
0
|
5
|
|
| Non-agency residential |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
2,534
|
2,669
|
|
| Other debt securities carried at fair value |
2,535
|
2,764
|
|
| Commercial |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
13,600
|
13,684
|
|
| Other taxable securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
4,486
|
5,770
|
|
| Other debt securities carried at fair value |
202
|
229
|
|
| Tax-exempt securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
19,065
|
20,575
|
|
| Recurring |
|
|
|
| Financial assets |
|
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
59,763
|
52,906
|
|
| Trading account assets |
203,420
|
209,358
|
|
| Netting adjustments |
(315,364)
|
(313,788)
|
|
| Derivative assets |
45,210
|
37,762
|
|
| Total available-for-sale debt securities |
262,119
|
302,631
|
|
| Other debt securities carried at fair value |
13,137
|
12,486
|
|
| Loans and leases |
6,227
|
5,710
|
|
| Loans held-for-sale |
2,845
|
2,156
|
|
| Other assets |
21,883
|
22,581
|
|
| Total assets |
614,604
|
645,590
|
|
| Mortgage servicing rights |
2,200
|
2,300
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
513
|
449
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
32,724
|
36,182
|
|
| Total trading account liabilities |
87,028
|
81,187
|
|
| Netting adjustment |
(310,237)
|
(311,771)
|
|
| Derivative liabilities |
33,605
|
34,300
|
|
| Short-term borrowings |
3,396
|
1,494
|
|
| Accrued expenses and other liabilities |
21,178
|
22,840
|
|
| Long-term debt |
28,377
|
31,786
|
|
| Total liabilities |
206,821
|
208,238
|
|
| Recurring | Securities Segregated for Compliance or Deposited with Clearing Organizations |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
13,100
|
16,800
|
|
| Recurring | U.S. Treasury and agency securities |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
33,670
|
40,642
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
14,291
|
18,000
|
|
| Recurring | Corporate securities, trading loans and other |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
30,918
|
30,578
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
7,853
|
6,925
|
|
| Recurring | Equity securities |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
80,431
|
84,940
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
41,187
|
36,904
|
|
| Recurring | Non-U.S. sovereign debt |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
29,448
|
22,940
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
23,697
|
19,358
|
|
| Recurring | U.S. government-sponsored agency guaranteed |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
19,341
|
20,586
|
|
| Recurring | Mortgage trading loans, ABS and other MBS |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
9,612
|
9,672
|
|
| Recurring | U.S. Treasury and agency securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
52,734
|
53,523
|
|
| Recurring | Agency |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
157,000
|
192,929
|
|
| Recurring | Agency-collateralized mortgage obligations |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
6,035
|
6,804
|
|
| Other debt securities carried at fair value |
|
5
|
|
| Recurring | Non-agency residential |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
2,534
|
2,669
|
|
| Other debt securities carried at fair value |
2,535
|
2,764
|
|
| Recurring | Commercial |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
13,600
|
13,684
|
|
| Recurring | Non-U.S. securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
6,665
|
6,677
|
|
| Other debt securities carried at fair value |
10,400
|
9,488
|
|
| Recurring | Other taxable securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
4,486
|
5,770
|
|
| Other debt securities carried at fair value |
202
|
229
|
|
| Recurring | Tax-exempt securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
19,065
|
20,575
|
|
| Recurring | US Government-sponsored enterprises debt securities |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
20,000
|
21,300
|
|
| Recurring | Level 1 |
|
|
|
| Financial assets |
|
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
0
|
0
|
|
| Trading account assets |
97,697
|
106,012
|
|
| Derivative assets, gross |
8,951
|
6,305
|
|
| Total available-for-sale debt securities |
51,920
|
52,687
|
|
| Other debt securities carried at fair value |
9,097
|
8,191
|
|
| Loans and leases |
0
|
0
|
|
| Loans held-for-sale |
0
|
0
|
|
| Other assets |
16,861
|
19,367
|
|
| Total assets |
184,526
|
192,562
|
|
| 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 |
63,947
|
62,261
|
|
| Gross Derivative Liabilities |
8,058
|
6,029
|
|
| Short-term borrowings |
0
|
0
|
|
| Accrued expenses and other liabilities |
19,159
|
21,887
|
|
| Long-term debt |
0
|
0
|
|
| Total liabilities |
91,164
|
90,177
|
|
| Recurring | Level 1 | U.S. Treasury and agency securities |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
32,923
|
38,720
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
13,783
|
17,266
|
|
| Recurring | Level 1 | Corporate securities, trading loans and other |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
0
|
0
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
0
|
0
|
|
| Recurring | Level 1 | Equity securities |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
55,128
|
60,747
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
37,221
|
33,019
|
|
| Recurring | Level 1 | Non-U.S. sovereign debt |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
9,646
|
6,545
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
12,943
|
11,976
|
|
| Recurring | Level 1 | U.S. government-sponsored agency guaranteed |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
0
|
0
|
|
| Recurring | Level 1 | Mortgage trading loans, ABS and other MBS |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
0
|
0
|
|
| Recurring | Level 1 | U.S. Treasury and agency securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
51,173
|
51,915
|
|
| Recurring | Level 1 | Agency |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 1 | Agency-collateralized mortgage obligations |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Other debt securities carried at fair value |
|
0
|
|
| Recurring | Level 1 | Non-agency residential |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Other debt securities carried at fair value |
0
|
0
|
|
| Recurring | Level 1 | Commercial |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 1 | Non-U.S. securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
747
|
772
|
|
| Other debt securities carried at fair value |
9,097
|
8,191
|
|
| Recurring | Level 1 | Other taxable securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Other debt securities carried at fair value |
0
|
0
|
|
| Recurring | Level 1 | Tax-exempt securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 2 |
|
|
|
| Financial assets |
|
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
59,763
|
52,906
|
|
| Trading account assets |
101,966
|
99,193
|
|
| Derivative assets, gross |
347,112
|
341,178
|
|
| Total available-for-sale debt securities |
209,643
|
248,941
|
|
| Other debt securities carried at fair value |
3,753
|
4,295
|
|
| Loans and leases |
5,734
|
5,139
|
|
| Loans held-for-sale |
2,268
|
1,466
|
|
| Other assets |
1,838
|
789
|
|
| Total assets |
732,077
|
753,907
|
|
| Liabilities |
|
|
|
| Interest-bearing deposits in U.S. offices |
513
|
449
|
|
| Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
32,724
|
36,182
|
|
| Total trading account liabilities |
23,046
|
18,902
|
|
| Gross Derivative Liabilities |
329,685
|
334,261
|
|
| Short-term borrowings |
3,396
|
1,494
|
|
| Accrued expenses and other liabilities |
2,019
|
945
|
|
| Long-term debt |
27,152
|
29,923
|
|
| Total liabilities |
418,535
|
422,156
|
|
| Recurring | Level 2 | U.S. Treasury and agency securities |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
747
|
1,922
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
508
|
734
|
|
| Recurring | Level 2 | Corporate securities, trading loans and other |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
29,280
|
28,714
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
7,818
|
6,901
|
|
| Recurring | Level 2 | Equity securities |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
25,075
|
23,958
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
3,966
|
3,885
|
|
| Recurring | Level 2 | Non-U.S. sovereign debt |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
19,434
|
15,839
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
10,754
|
7,382
|
|
| Recurring | Level 2 | U.S. government-sponsored agency guaranteed |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
19,341
|
20,586
|
|
| Recurring | Level 2 | Mortgage trading loans, ABS and other MBS |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
8,089
|
8,174
|
|
| Recurring | Level 2 | U.S. Treasury and agency securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
1,561
|
1,608
|
|
| Recurring | Level 2 | Agency |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
157,000
|
192,929
|
|
| Recurring | Level 2 | Agency-collateralized mortgage obligations |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
6,035
|
6,804
|
|
| Other debt securities carried at fair value |
|
5
|
|
| Recurring | Level 2 | Non-agency residential |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
2,081
|
2,669
|
|
| Other debt securities carried at fair value |
2,248
|
2,764
|
|
| Recurring | Level 2 | Commercial |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
13,600
|
13,684
|
|
| Recurring | Level 2 | Non-U.S. securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
5,915
|
5,880
|
|
| Other debt securities carried at fair value |
1,303
|
1,297
|
|
| Recurring | Level 2 | Other taxable securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
4,387
|
5,261
|
|
| Other debt securities carried at fair value |
202
|
229
|
|
| Recurring | Level 2 | Tax-exempt securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
19,064
|
20,106
|
|
| Recurring | Level 3 |
|
|
|
| Financial assets |
|
|
|
| Federal funds sold and securities borrowed or purchased under agreements to resell |
0
|
0
|
|
| Trading account assets |
3,757
|
4,153
|
|
| Derivative assets, gross |
4,511
|
4,067
|
$ 4,000
|
| Total available-for-sale debt securities |
556
|
1,003
|
|
| Other debt securities carried at fair value |
287
|
0
|
|
| Loans and leases |
493
|
571
|
|
| Loans held-for-sale |
577
|
690
|
|
| Other assets |
3,184
|
2,425
|
|
| Total assets |
13,365
|
12,909
|
|
| 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 |
35
|
24
|
|
| Gross Derivative Liabilities |
6,099
|
5,781
|
$ 5,800
|
| Short-term borrowings |
0
|
0
|
|
| Accrued expenses and other liabilities |
0
|
8
|
|
| Long-term debt |
1,225
|
1,863
|
|
| Total liabilities |
7,359
|
7,676
|
|
| Recurring | Level 3 | U.S. Treasury and agency securities |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
0
|
0
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
0
|
0
|
|
| Recurring | Level 3 | Corporate securities, trading loans and other |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
1,638
|
1,864
|
|
| Total assets |
1,600
|
1,900
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
35
|
24
|
|
| Recurring | Level 3 | Equity securities |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
228
|
235
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
0
|
0
|
|
| Recurring | Level 3 | Non-U.S. sovereign debt |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
368
|
556
|
|
| Total assets |
368
|
556
|
|
| Liabilities |
|
|
|
| Total trading account liabilities |
0
|
0
|
|
| Recurring | Level 3 | U.S. government-sponsored agency guaranteed |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
0
|
0
|
|
| Recurring | Level 3 | Mortgage trading loans, ABS and other MBS |
|
|
|
| Financial assets |
|
|
|
| Trading account assets |
1,523
|
1,498
|
|
| Total assets |
1,500
|
1,500
|
|
| Recurring | Level 3 | U.S. Treasury and agency securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 3 | Agency |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 3 | Agency-collateralized mortgage obligations |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Other debt securities carried at fair value |
|
0
|
|
| Recurring | Level 3 | Non-agency residential |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
453
|
0
|
|
| Other debt securities carried at fair value |
287
|
0
|
|
| Recurring | Level 3 | Commercial |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
0
|
0
|
|
| Recurring | Level 3 | Non-U.S. securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
3
|
25
|
|
| Other debt securities carried at fair value |
0
|
0
|
|
| Recurring | Level 3 | Other taxable securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
99
|
509
|
|
| Other debt securities carried at fair value |
0
|
0
|
|
| Total assets |
|
509
|
|
| Recurring | Level 3 | Tax-exempt securities |
|
|
|
| Financial assets |
|
|
|
| Total available-for-sale debt securities |
$ 1
|
469
|
|
| Total assets |
|
$ 469
|
|