Fair Value Measurements - Recurring Fair Value (Details) - USD ($) $ in Millions |
Sep. 30, 2016 |
Jun. 30, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Dec. 31, 2014 |
Financial assets |
|
|
|
|
|
|
Federal funds sold and securities borrowed or purchased under agreements to resell |
$ 51,638
|
|
$ 55,143
|
|
|
|
Trading account assets |
187,849
|
|
176,527
|
|
|
|
Gross derivative assets |
788,400
|
|
688,600
|
|
|
|
Derivative assets |
47,896
|
|
49,990
|
|
|
|
Total AFS debt securities |
301,380
|
|
305,773
|
|
|
|
Other debt securities carried at fair value |
21,125
|
|
16,607
|
|
|
|
Loans and leases, measured at fair value |
8,108
|
|
6,938
|
|
|
|
Mortgage servicing rights |
2,477
|
$ 2,269
|
3,087
|
$ 3,043
|
$ 3,521
|
$ 3,530
|
Loans held-for-sale, measured at fair value |
4,652
|
|
4,818
|
|
|
|
Other assets |
13,891
|
|
14,320
|
|
|
|
Liabilities |
|
|
|
|
|
|
Interest-bearing deposits in U.S. offices |
913
|
|
1,116
|
|
|
|
Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
31,868
|
|
24,574
|
|
|
|
Gross derivative liabilities |
782,600
|
|
681,100
|
|
|
|
Derivative liabilities |
43,484
|
|
38,450
|
|
|
|
Short-term borrowings, measured at fair value |
1,055
|
|
1,325
|
|
|
|
Long-term debt |
32,619
|
|
30,097
|
|
|
|
Derivative Liabilities |
|
|
|
|
|
|
Assets and Liabilities, Recurring Basis, Supplemental Information: |
|
|
|
|
|
|
Liabilities transferred from Level 1 to Level 2 |
1,500
|
|
6,700
|
|
|
|
Liabilities transferred from Level 2 to Level 1 |
1,500
|
|
6,200
|
|
|
|
Derivative assets |
|
|
|
|
|
|
Assets and Liabilities, Recurring Basis, Supplemental Information: |
|
|
|
|
|
|
Assets transferred from Level 1 to Level 2 |
1,400
|
|
6,600
|
|
|
|
Assets transferred from Level 2 to Level 1 |
1,600
|
|
6,400
|
|
|
|
Other assets |
|
|
|
|
|
|
Assets and Liabilities, Recurring Basis, Supplemental Information: |
|
|
|
|
|
|
Assets transferred from Level 2 to Level 1 |
|
|
327
|
|
|
|
U.S. Treasury and agency securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
45,284
|
|
25,277
|
|
|
|
Agency |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
201,051
|
|
228,947
|
|
|
|
Agency-collateralized mortgage obligations |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
9,081
|
|
10,985
|
|
|
|
Non-agency residential |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
1,618
|
|
3,179
|
|
|
|
Commercial |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
12,936
|
|
7,165
|
|
|
|
Other taxable securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
9,416
|
|
10,445
|
|
|
|
Tax-exempt securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
15,984
|
|
14,008
|
|
|
|
US Government-sponsored Enterprises Debt Securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
18,400
|
|
14,800
|
|
|
|
Recurring |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Federal funds sold and securities borrowed or purchased under agreements to resell |
51,638
|
|
55,143
|
|
|
|
Trading account assets |
187,849
|
|
176,527
|
|
|
|
Netting adjustments |
(740,440)
|
|
(638,648)
|
|
|
|
Derivative assets |
47,896
|
|
49,990
|
|
|
|
Total AFS debt securities |
301,380
|
|
305,773
|
|
|
|
Other debt securities carried at fair value |
21,125
|
|
16,607
|
|
|
|
Loans and leases, measured at fair value |
8,108
|
|
6,938
|
|
|
|
Mortgage servicing rights |
2,477
|
|
3,087
|
|
|
|
Loans held-for-sale, measured at fair value |
4,652
|
|
4,818
|
|
|
|
Other assets |
13,891
|
|
14,320
|
|
|
|
Total assets |
639,016
|
|
633,203
|
|
|
|
Liabilities |
|
|
|
|
|
|
Interest-bearing deposits in U.S. offices |
913
|
|
1,116
|
|
|
|
Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
31,868
|
|
24,574
|
|
|
|
Total trading account liabilities |
76,998
|
|
66,963
|
|
|
|
Netting adjustment |
(739,087)
|
|
(642,666)
|
|
|
|
Derivative liabilities |
43,484
|
|
38,450
|
|
|
|
Short-term borrowings, measured at fair value |
1,055
|
|
1,325
|
|
|
|
Accrued expenses and other liabilities |
15,813
|
|
13,899
|
|
|
|
Long-term debt |
32,619
|
|
30,097
|
|
|
|
Total liabilities |
202,750
|
|
176,424
|
|
|
|
Recurring | Consolidated VIEs |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Loans and leases, measured at fair value |
655
|
|
|
|
|
|
Recurring | Securities Segregated for Compliance or Deposited with Clearing Organizations |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
11,200
|
|
16,400
|
|
|
|
Recurring | U.S. government and agency securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
57,354
|
|
48,535
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
9,788
|
|
14,972
|
|
|
|
Recurring | Corporate securities, trading loans and other |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
30,432
|
|
25,901
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
6,308
|
|
6,161
|
|
|
|
Recurring | Equity securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
60,865
|
|
63,029
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
45,537
|
|
30,290
|
|
|
|
Recurring | Non-U.S. sovereign debt |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
29,526
|
|
29,087
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
15,365
|
|
15,540
|
|
|
|
Recurring | Mortgage trading loans and ABS |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
9,672
|
|
9,975
|
|
|
|
Recurring | U.S. Treasury and agency securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
45,284
|
|
25,277
|
|
|
|
Recurring | Agency |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
201,051
|
|
228,947
|
|
|
|
Recurring | Agency-collateralized mortgage obligations |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
9,081
|
|
10,985
|
|
|
|
Other debt securities carried at fair value |
6
|
|
7
|
|
|
|
Recurring | Non-agency residential |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
1,618
|
|
3,179
|
|
|
|
Other debt securities carried at fair value |
3,193
|
|
3,490
|
|
|
|
Recurring | Commercial |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
12,936
|
|
7,165
|
|
|
|
Recurring | Non-U.S. securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
6,010
|
|
5,767
|
|
|
|
Other debt securities carried at fair value |
17,680
|
|
12,843
|
|
|
|
Recurring | Other taxable securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
9,416
|
|
10,445
|
|
|
|
Other debt securities carried at fair value |
246
|
|
267
|
|
|
|
Recurring | Tax-exempt securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
15,984
|
|
14,008
|
|
|
|
Recurring | Level 1 |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Federal funds sold and securities borrowed or purchased under agreements to resell |
0
|
|
0
|
|
|
|
Trading account assets |
91,690
|
|
90,745
|
|
|
|
Gross derivative assets |
7,515
|
|
5,149
|
|
|
|
Total AFS debt securities |
46,487
|
|
26,142
|
|
|
|
Other debt securities carried at fair value |
16,212
|
|
11,691
|
|
|
|
Loans and leases, measured at fair value |
0
|
|
0
|
|
|
|
Mortgage servicing rights |
0
|
|
0
|
|
|
|
Loans held-for-sale, measured at fair value |
0
|
|
0
|
|
|
|
Other assets |
11,488
|
|
11,923
|
|
|
|
Total assets |
173,392
|
|
145,650
|
|
|
|
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 |
64,954
|
|
56,483
|
|
|
|
Gross derivative liabilities |
7,555
|
|
4,941
|
|
|
|
Short-term borrowings, measured at fair value |
0
|
|
0
|
|
|
|
Accrued expenses and other liabilities |
13,752
|
|
11,656
|
|
|
|
Long-term debt |
0
|
|
0
|
|
|
|
Total liabilities |
86,261
|
|
73,080
|
|
|
|
Recurring | Level 1 | U.S. government and agency securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
38,950
|
|
33,034
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
9,515
|
|
14,803
|
|
|
|
Recurring | Level 1 | Corporate securities, trading loans and other |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
168
|
|
325
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
115
|
|
193
|
|
|
|
Recurring | Level 1 | Equity securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
37,641
|
|
41,735
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
42,193
|
|
27,898
|
|
|
|
Recurring | Level 1 | Non-U.S. sovereign debt |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
14,931
|
|
15,651
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
13,131
|
|
13,589
|
|
|
|
Recurring | Level 1 | Mortgage trading loans and ABS |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
0
|
|
0
|
|
|
|
Recurring | Level 1 | U.S. Treasury and agency securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
43,798
|
|
23,374
|
|
|
|
Recurring | Level 1 | Agency |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
0
|
|
0
|
|
|
|
Recurring | Level 1 | Agency-collateralized mortgage obligations |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
0
|
|
0
|
|
|
|
Other debt securities carried at fair value |
0
|
|
0
|
|
|
|
Recurring | Level 1 | Non-agency residential |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
0
|
|
0
|
|
|
|
Other debt securities carried at fair value |
0
|
|
0
|
|
|
|
Recurring | Level 1 | Commercial |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
0
|
|
0
|
|
|
|
Recurring | Level 1 | Non-U.S. securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
2,689
|
|
2,768
|
|
|
|
Other debt securities carried at fair value |
16,212
|
|
11,691
|
|
|
|
Recurring | Level 1 | Other taxable securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
0
|
|
0
|
|
|
|
Other debt securities carried at fair value |
0
|
|
0
|
|
|
|
Recurring | Level 1 | Tax-exempt securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
0
|
|
0
|
|
|
|
Recurring | Level 2 |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Federal funds sold and securities borrowed or purchased under agreements to resell |
51,638
|
|
55,143
|
|
|
|
Trading account assets |
91,426
|
|
80,148
|
|
|
|
Gross derivative assets |
775,954
|
|
678,355
|
|
|
|
Total AFS debt securities |
253,408
|
|
278,199
|
|
|
|
Other debt securities carried at fair value |
4,887
|
|
4,886
|
|
|
|
Loans and leases, measured at fair value |
6,753
|
|
5,318
|
|
|
|
Mortgage servicing rights |
0
|
|
0
|
|
|
|
Loans held-for-sale, measured at fair value |
4,065
|
|
4,031
|
|
|
|
Other assets |
2,040
|
|
2,023
|
|
|
|
Total assets |
1,190,171
|
|
1,108,103
|
|
|
|
Liabilities |
|
|
|
|
|
|
Interest-bearing deposits in U.S. offices |
913
|
|
1,116
|
|
|
|
Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value |
31,530
|
|
24,239
|
|
|
|
Total trading account liabilities |
12,018
|
|
10,459
|
|
|
|
Gross derivative liabilities |
769,162
|
|
670,600
|
|
|
|
Short-term borrowings, measured at fair value |
1,055
|
|
1,295
|
|
|
|
Accrued expenses and other liabilities |
2,052
|
|
2,234
|
|
|
|
Long-term debt |
30,685
|
|
28,584
|
|
|
|
Total liabilities |
847,415
|
|
738,527
|
|
|
|
Recurring | Level 2 | U.S. government and agency securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
18,404
|
|
15,501
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
273
|
|
169
|
|
|
|
Recurring | Level 2 | Corporate securities, trading loans and other |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
27,702
|
|
22,738
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
6,167
|
|
5,947
|
|
|
|
Recurring | Level 2 | Equity securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
22,858
|
|
20,887
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
3,344
|
|
2,392
|
|
|
|
Recurring | Level 2 | Non-U.S. sovereign debt |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
13,956
|
|
12,915
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
2,234
|
|
1,951
|
|
|
|
Recurring | Level 2 | Mortgage trading loans and ABS |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
8,506
|
|
8,107
|
|
|
|
Recurring | Level 2 | U.S. Treasury and agency securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
1,486
|
|
1,903
|
|
|
|
Recurring | Level 2 | Agency |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
201,051
|
|
228,947
|
|
|
|
Recurring | Level 2 | Agency-collateralized mortgage obligations |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
9,081
|
|
10,985
|
|
|
|
Other debt securities carried at fair value |
6
|
|
7
|
|
|
|
Recurring | Level 2 | Non-agency residential |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
1,391
|
|
3,073
|
|
|
|
Other debt securities carried at fair value |
3,167
|
|
3,460
|
|
|
|
Recurring | Level 2 | Commercial |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
12,936
|
|
7,165
|
|
|
|
Recurring | Level 2 | Non-U.S. securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
3,321
|
|
2,999
|
|
|
|
Other debt securities carried at fair value |
1,468
|
|
1,152
|
|
|
|
Recurring | Level 2 | Other taxable securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
8,729
|
|
9,688
|
|
|
|
Other debt securities carried at fair value |
246
|
|
267
|
|
|
|
Recurring | Level 2 | Tax-exempt securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
15,413
|
|
13,439
|
|
|
|
Recurring | Level 3 |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Federal funds sold and securities borrowed or purchased under agreements to resell |
0
|
|
0
|
|
|
|
Trading account assets |
4,733
|
|
5,634
|
|
|
|
Gross derivative assets |
4,867
|
|
5,134
|
6,000
|
|
|
Total AFS debt securities |
1,485
|
|
1,432
|
|
|
|
Other debt securities carried at fair value |
26
|
|
30
|
|
|
|
Loans and leases, measured at fair value |
1,355
|
|
1,620
|
|
|
|
Mortgage servicing rights |
2,477
|
|
3,087
|
|
|
|
Loans held-for-sale, measured at fair value |
587
|
|
787
|
|
|
|
Other assets |
363
|
|
374
|
|
|
|
Total assets |
15,893
|
|
18,098
|
|
|
|
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 |
338
|
|
335
|
|
|
|
Total trading account liabilities |
26
|
|
21
|
|
|
|
Gross derivative liabilities |
5,854
|
|
5,575
|
$ 5,600
|
|
|
Short-term borrowings, measured at fair value |
0
|
|
30
|
|
|
|
Accrued expenses and other liabilities |
9
|
|
9
|
|
|
|
Long-term debt |
1,934
|
|
1,513
|
|
|
|
Total liabilities |
8,161
|
|
7,483
|
|
|
|
Recurring | Level 3 | U.S. government 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 |
2,562
|
|
2,838
|
|
|
|
Total assets |
2,600
|
|
2,800
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
26
|
|
21
|
|
|
|
Recurring | Level 3 | Equity securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
366
|
|
407
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
0
|
|
0
|
|
|
|
Recurring | Level 3 | Non-U.S. sovereign debt |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
639
|
|
521
|
|
|
|
Total assets |
639
|
|
521
|
|
|
|
Liabilities |
|
|
|
|
|
|
Total trading account liabilities |
0
|
|
0
|
|
|
|
Recurring | Level 3 | Mortgage trading loans and ABS |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Trading account assets |
1,166
|
|
1,868
|
|
|
|
Total assets |
1,200
|
|
1,900
|
|
|
|
Recurring | Level 3 | U.S. Treasury and agency securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
0
|
|
0
|
|
|
|
Recurring | Level 3 | Agency |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
0
|
|
0
|
|
|
|
Recurring | Level 3 | Agency-collateralized mortgage obligations |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
0
|
|
0
|
|
|
|
Other debt securities carried at fair value |
0
|
|
0
|
|
|
|
Recurring | Level 3 | Non-agency residential |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
227
|
|
106
|
|
|
|
Other debt securities carried at fair value |
26
|
|
30
|
|
|
|
Recurring | Level 3 | Commercial |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
0
|
|
0
|
|
|
|
Recurring | Level 3 | Non-U.S. securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
0
|
|
0
|
|
|
|
Other debt securities carried at fair value |
0
|
|
0
|
|
|
|
Recurring | Level 3 | Other taxable securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
687
|
|
757
|
|
|
|
Other debt securities carried at fair value |
0
|
|
0
|
|
|
|
Total assets |
687
|
|
757
|
|
|
|
Recurring | Level 3 | Tax-exempt securities |
|
|
|
|
|
|
Financial assets |
|
|
|
|
|
|
Total AFS debt securities |
571
|
|
569
|
|
|
|
Total assets |
$ 571
|
|
$ 569
|
|
|
|