Loans - Consumer, Excluding Credit Card Loan Portfolio, PCI Loans (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	$ 947,728	$ 969,415	$ 940,440
Consumer, excluding credit card
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	351,692	373,637	$ 374,587
Consumer, excluding credit card | Total PCI
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	214,744	231,078
Unpaid principal balance of impaired loans	5,965	6,207
Consumer, excluding credit card | Total PCI | California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	71,176	74,759
Consumer, excluding credit card | Total PCI | Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	10,450	10,704
Consumer, excluding credit card | Total PCI | New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	26,684	28,847
Consumer, excluding credit card | Total PCI | Illinois
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	14,236	15,249
Consumer, excluding credit card | Total PCI | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	7,937	8,304
Consumer, excluding credit card | Total PCI | New Jersey
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	6,608	7,302
Consumer, excluding credit card | Total PCI | Massachusetts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	6,195	6,574
Consumer, excluding credit card | Total PCI | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	4,074	4,434
Consumer, excluding credit card | Total PCI | All other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	46,905	52,996
Consumer, excluding credit card | Total PCI | No FICO/LTV available
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	866	813
Consumer, excluding credit card | Total PCI | Greater than 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	19	25
Consumer, excluding credit card | Total PCI | Greater than 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	10	13
Consumer, excluding credit card | Total PCI | 101% to 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	35	37
Consumer, excluding credit card | Total PCI | 101% to 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	36	53
Consumer, excluding credit card | Total PCI | 80% to 100% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	4,528	3,977
Consumer, excluding credit card | Total PCI | 80% to 100% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	227	281
Consumer, excluding credit card | Total PCI | Less than 80% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	198,687	212,505
Consumer, excluding credit card | Total PCI | Less than 80% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	6,110	6,457
Consumer, excluding credit card | Total PCI | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	211,426	225,899
Consumer, excluding credit card | Total PCI | 30–149 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	1,788	2,763
Consumer, excluding credit card | Total PCI | 150 or more days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	1,530	2,416
Consumer, excluding credit card | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	26,017	28,340
Unpaid principal balance of impaired loans	3,362	3,466
Consumer, excluding credit card | Home equity | California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	5,327	5,695
Consumer, excluding credit card | Home equity | Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	1,429	1,575
Consumer, excluding credit card | Home equity | New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	5,276	5,769
Consumer, excluding credit card | Home equity | Illinois
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	1,937	2,131
Consumer, excluding credit card | Home equity | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	802	869
Consumer, excluding credit card | Home equity | New Jersey
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	1,504	1,642
Consumer, excluding credit card | Home equity | Massachusetts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	219	236
Consumer, excluding credit card | Home equity | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	1,042	1,158
Consumer, excluding credit card | Home equity | All other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	6,320	6,925
Consumer, excluding credit card | Home equity | No FICO/LTV available
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	767	885
Consumer, excluding credit card | Home equity | Greater than 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	5	6
Consumer, excluding credit card | Home equity | Greater than 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	2	1
Consumer, excluding credit card | Home equity | 101% to 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	73	111
Consumer, excluding credit card | Home equity | 101% to 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	23	38
Consumer, excluding credit card | Home equity | 80% to 100% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	764	986
Consumer, excluding credit card | Home equity | 80% to 100% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	236	326
Consumer, excluding credit card | Home equity | Less than 80% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	21,178	22,632
Consumer, excluding credit card | Home equity | Less than 80% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	2,969	3,355
Consumer, excluding credit card | Home equity | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	25,423	27,611
Consumer, excluding credit card | Home equity | 30–149 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	365	453
Consumer, excluding credit card | Home equity | 150 or more days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	229	276
Consumer, excluding credit card | Residential real estate – PCI | Total PCI
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	22,242	24,034
Unpaid principal balance of impaired loans	$ 22,938	$ 24,741
% of 30 days past due to total loans	8.71%	9.16%
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	$ 12,408	$ 13,389
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	2,091	2,255
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	1,564	1,660
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | Illinois
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	671	709
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	668	738
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | New Jersey
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	623	690
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | Massachusetts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	464	491
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | Maryland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	397	417
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | Virginia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	365	393
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	354	389
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | All other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	3,333	3,610
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | No FICO/LTV available
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	821	951
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | Greater than 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	22	21
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | Greater than 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	26	36
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | 101% to 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	135	162
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | 101% to 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	113	155
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | 80% to 100% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	939	1,053
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | 80% to 100% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	641	851
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | Less than 80% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	13,896	14,087
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | Less than 80% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	6,345	7,425
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	20,939	22,475
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | 30–149 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	1,121	1,221
Consumer, excluding credit card | Residential real estate – PCI | Total PCI | 150 or more days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	878	1,045
Consumer, excluding credit card | Residential real estate – PCI | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	8,149	8,963
Unpaid principal balance of impaired loans	$ 8,336	$ 9,144
% of 30 days past due to total loans	5.18%	5.69%
Consumer, excluding credit card | Residential real estate – PCI | Home equity | California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	$ 4,942	$ 5,420
Consumer, excluding credit card | Residential real estate – PCI | Home equity | Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	901	976
Consumer, excluding credit card | Residential real estate – PCI | Home equity | New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	485	525
Consumer, excluding credit card | Residential real estate – PCI | Home equity | Illinois
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	217	233
Consumer, excluding credit card | Residential real estate – PCI | Home equity | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	373	419
Consumer, excluding credit card | Residential real estate – PCI | Home equity | New Jersey
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	191	210
Consumer, excluding credit card | Residential real estate – PCI | Home equity | Massachusetts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	59	65
Consumer, excluding credit card | Residential real estate – PCI | Home equity | Maryland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	44	48
Consumer, excluding credit card | Residential real estate – PCI | Home equity | Virginia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	49	54
Consumer, excluding credit card | Residential real estate – PCI | Home equity | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	149	165
Consumer, excluding credit card | Residential real estate – PCI | Home equity | All other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	926	1,029
Consumer, excluding credit card | Residential real estate – PCI | Home equity | No FICO/LTV available
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	230	265
Consumer, excluding credit card | Residential real estate – PCI | Home equity | Greater than 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	15	17
Consumer, excluding credit card | Residential real estate – PCI | Home equity | Greater than 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	10	13
Consumer, excluding credit card | Residential real estate – PCI | Home equity | 101% to 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	105	135
Consumer, excluding credit card | Residential real estate – PCI | Home equity | 101% to 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	45	65
Consumer, excluding credit card | Residential real estate – PCI | Home equity | 80% to 100% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	708	805
Consumer, excluding credit card | Residential real estate – PCI | Home equity | 80% to 100% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	304	388
Consumer, excluding credit card | Residential real estate – PCI | Home equity | Less than 80% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	5,241	5,548
Consumer, excluding credit card | Residential real estate – PCI | Home equity | Less than 80% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	1,678	1,908
Consumer, excluding credit card | Residential real estate – PCI | Home equity | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	7,904	8,624
Consumer, excluding credit card | Residential real estate – PCI | Home equity | 30–149 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	239	278
Consumer, excluding credit card | Residential real estate – PCI | Home equity | 150 or more days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	193	242
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	4,343	4,690
Unpaid principal balance of impaired loans	$ 4,363	$ 4,708
% of 30 days past due to total loans	10.11%	10.24%
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	$ 2,381	$ 2,578
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	306	332
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	350	365
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | Illinois
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	145	154
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	90	98
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | New Jersey
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	119	134
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | Massachusetts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	108	113
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | Maryland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	91	95
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | Virginia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	84	91
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	63	69
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | All other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	626	679
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | No FICO/LTV available
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	188	228
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | Greater than 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	2	1
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | Greater than 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	4	7
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | 101% to 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	5	6
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | 101% to 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	19	22
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | 80% to 100% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	67	75
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | 80% to 100% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	80	112
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | Less than 80% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	2,692	2,689
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | Less than 80% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	1,306	1,568
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	3,922	4,226
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | 30–149 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	256	259
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Prime mortgage | 150 or more days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	185	223
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	1,857	1,945
Unpaid principal balance of impaired loans	$ 2,333	$ 2,442
% of 30 days past due to total loans	15.39%	16.75%
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	$ 568	$ 593
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	224	234
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	259	268
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | Illinois
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	119	123
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	40	44
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | New Jersey
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	83	88
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | Massachusetts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	71	73
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | Maryland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	93	96
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | Virginia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	35	37
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	39	43
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | All other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	802	843
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | No FICO/LTV available
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	100	113
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | Greater than 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	2	0
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | Greater than 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	6	9
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | 101% to 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	5	4
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | 101% to 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	28	35
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | 80% to 100% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	56	54
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | 80% to 100% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	120	161
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | Less than 80% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	820	739
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | Less than 80% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	1,196	1,327
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	1,974	2,033
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | 30–149 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	254	286
Consumer, excluding credit card | Residential real estate – PCI | Mortgage | Subprime mortgage | 150 or more days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	105	123
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	7,893	8,436
Unpaid principal balance of impaired loans	$ 7,906	$ 8,447
% of 30 days past due to total loans	9.70%	10.12%
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	$ 4,517	$ 4,798
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	660	713
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	470	502
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | Illinois
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	190	199
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	165	177
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | New Jersey
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	230	258
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | Massachusetts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	226	240
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | Maryland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	169	178
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | Virginia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	197	211
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	103	112
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | All other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	979	1,059
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | No FICO/LTV available
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	303	345
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | Greater than 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	3	3
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | Greater than 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	6	7
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | 101% to 125% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	20	17
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | 101% to 125% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	21	33
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | 80% to 100% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	108	119
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | 80% to 100% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	137	190
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | Less than 80% and refreshed FICO scores | Equal to or greater than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	5,143	5,111
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | Less than 80% and refreshed FICO scores | Less than 660
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	2,165	2,622
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	7,139	7,592
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | 30–149 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	372	398
Consumer, excluding credit card | Residential real estate – PCI | Option ARMs | 150 or more days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans	$ 395	$ 457