FAIR VALUE MEASUREMENT - Items Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2015	Sep. 30, 2015	Dec. 31, 2014
Assets, Fair Value Disclosure [Abstract]
Federal funds sold and securities borrowed or purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell, Netting	$ (46,771)	$ (46,771)	$ (56,339)
Trading account assets	266,946	266,946	296,786
Netting of cash collateral received	(50,476)	(50,476)	(47,625)
Investments	342,439	342,439	333,443
Loans	5,513	5,513	5,901
Mortgage servicing rights (MSRs)	1,766	1,766	1,845
Liabilities, Fair Value Disclosure [Abstract]
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase, Netting	(46,771)	(46,771)	(56,339)
Netting of cash collateral paid	(42,435)	(42,435)	(47,769)
Assets transferred from Level 1 to Level 2	200	1,400	4,100
Assets transferred from Level 2 to Level 1	1,000	4,100	4,200
Liabilities transferred from Level 2 to Level 1	300	600
Liabilities transferred from Level 1 to Level 2		100	1,400
Investments measured at net asset value excluded from Level 3	967	967	1,065
Accounting Standards Update 2015-07
Liabilities, Fair Value Disclosure [Abstract]
Investments measured at net asset value excluded from Level 3	1,000	1,000	1,100
Mortgage-backed securities - U.S. agency-sponsored
Assets, Fair Value Disclosure [Abstract]
Trading account assets	26,753	26,753	27,053
Mortgage-backed securities - Commercial
Assets, Fair Value Disclosure [Abstract]
Trading account assets	2,787	2,787	4,343
Mortgage-backed securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	32,939	32,939	36,234
U.S. Treasury and federal agency securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	27,763	27,763	20,474
State and municipal securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	3,824	3,824	3,402
Foreign government
Assets, Fair Value Disclosure [Abstract]
Trading account assets	57,676	57,676	64,937
Corporate
Assets, Fair Value Disclosure [Abstract]
Trading account assets	18,012	18,012	27,797
Equity securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	48,181	48,181	57,846
Asset-backed securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	5,017	5,017	4,546
Other debt securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	12,663	12,663	13,593
Recurring
Assets, Fair Value Disclosure [Abstract]
Federal funds sold and securities borrowed or purchased under agreements to resell	175,089	175,089	191,320
Federal funds sold and securities borrowed or purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell, Netting	(31,615)	(31,615)	(47,129)
Federal funds sold and securities borrowed or purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell	143,474	143,474	144,191
Investments	302,011	302,011	301,836
Loans	5,513	5,513	5,901
Mortgage servicing rights (MSRs)	1,766	1,766	1,845
Assets before netting	1,421,041	1,421,041	1,632,044
Total assets, Netting	(693,230)	(693,230)	(873,723)
Total assets	727,811	727,811	758,321
Liabilities, Fair Value Disclosure [Abstract]
Interest-bearing deposits	1,720	1,720	1,684
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase, Gross	71,058	71,058	83,854
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase, Netting	(31,615)	(31,615)	(47,129)
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase	39,443	39,443	36,725
Securities sold, not yet purchased	63,733	63,733	70,944
Short-term borrowings	777	777	1,496
Long-term debt, at fair value	26,238	26,238	26,180
Total liabilities, Gross	879,571	879,571	1,078,988
Total liabilities, Netting	(683,530)	(683,530)	(872,091)
Total liabilities	196,041	196,041	206,897
Recurring \| Trading derivatives liabilities
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	704,334	704,334	883,193
Cash collateral received	9,751	9,751	9,846
Total trading derivatives and cash collateral, liability	714,085	714,085	893,039
Netting agreements	(609,402)	(609,402)	(777,178)
Netting of cash collateral paid	(42,435)	(42,435)	(47,769)
Netting, Liabilities, total of netting agreements and cash collateral received	(651,837)	(651,837)	(824,947)
Total derivative liabilities	62,248	62,248	68,092
Cash collateral received, gross	60,227	60,227	57,471
Recurring \| Trading derivatives liabilities \| Interest rate contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	461,555	461,555	622,282
Recurring \| Trading derivatives liabilities \| Foreign exchange contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	151,875	151,875	158,826
Recurring \| Trading derivatives liabilities \| Equity contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	31,769	31,769	32,469
Recurring \| Trading derivatives liabilities \| Commodity contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	22,295	22,295	26,186
Recurring \| Trading derivatives liabilities \| Credit derivatives
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	36,840	36,840	43,430
Recurring \| Non-trading derivatives and other financial liabilities
Assets, Fair Value Disclosure [Abstract]
Netting of cash collateral received			(1,791)
Cash collateral paid, gross			138
Liabilities, Fair Value Disclosure [Abstract]
Cash collateral received	30	30	7
Netting of cash collateral paid	(78)	(78)	(15)
Netting, Liabilities, total of netting agreements and cash collateral received	(78)	(78)
Other liabilities, gross	1,930	1,930	1,784
Non-trading derivatives and other financial liabilities measured on a recurring basis, gross	1,960	1,960	1,791
Total other assets and cash collateral, gross	1,882	1,882	1,776
Cash collateral received, gross	1,767	1,767	1,798
Recurring \| Mortgage-backed securities - U.S. agency-sponsored
Assets, Fair Value Disclosure [Abstract]
Trading account assets	26,753	26,753	27,053
Investments	36,194	36,194	36,091
Recurring \| Mortgage-backed securities - Residential
Assets, Fair Value Disclosure [Abstract]
Trading account assets	3,399	3,399	4,838
Investments	7,227	7,227	8,363
Recurring \| Mortgage-backed securities - Commercial
Assets, Fair Value Disclosure [Abstract]
Trading account assets	2,787	2,787	4,343
Investments	528	528	554
Recurring \| Mortgage-backed securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	32,939	32,939	36,234
Investments	43,949	43,949	45,008
Recurring \| U.S. Treasury and federal agency securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	27,763	27,763	20,474
Investments	122,372	122,372	123,690
Recurring \| State and municipal securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	3,824	3,824	3,402
Investments	11,396	11,396	12,699
Recurring \| Foreign government
Assets, Fair Value Disclosure [Abstract]
Trading account assets	57,676	57,676	64,937
Investments	95,605	95,605	90,697
Recurring \| Corporate
Assets, Fair Value Disclosure [Abstract]
Trading account assets	18,012	18,012	27,797
Investments	16,024	16,024	12,157
Recurring \| Equity securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	48,181	48,181	57,846
Investments	829	829	2,725
Recurring \| Asset-backed securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	5,017	5,017	4,546
Investments	9,870	9,870	12,506
Recurring \| Other debt securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	12,663	12,663	13,593
Investments	671	671	661
Recurring \| Non-marketable equity securities
Assets, Fair Value Disclosure [Abstract]
Investments	1,295	1,295	1,693
Recurring \| Trading securities (excluding trading account derivatives)
Assets, Fair Value Disclosure [Abstract]
Trading account assets	206,075	206,075	228,829
Recurring \| Trading account assets
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	712,234	712,234	886,237
Gross cash collateral paid	8,515	8,515	6,523
Trading derivative, asset, gross net cash collateral paid	720,749	720,749	892,760
Less: Netting agreements to assets	(609,402)	(609,402)	(777,178)
Netting of cash collateral received	(50,476)	(50,476)	(47,625)
Netting, Assets, total of netting agreements and cash collateral received	(659,878)	(659,878)	(824,803)
Trading derivatives	60,871	60,871	67,957
Cash collateral paid, gross	50,950	50,950	54,292
Recurring \| Trading account assets \| Interest rate contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	481,310	481,310	638,453
Recurring \| Trading account assets \| Foreign exchange contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	148,586	148,586	155,994
Recurring \| Trading account assets \| Equity contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	27,208	27,208	24,752
Recurring \| Trading account assets \| Commodity contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	17,605	17,605	23,520
Recurring \| Trading account assets \| Credit derivatives
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	37,525	37,525	43,518
Recurring \| Non-trading derivatives and other financial assets
Assets, Fair Value Disclosure [Abstract]
Netting of cash collateral received	(1,737)	(1,737)	(1,791)
Netting, Assets, total of netting agreements and cash collateral received	(1,737)	(1,737)	(1,791)
Other assets, gross	9,838	9,838	9,430
Cash collateral paid, gross	0	0	123
Total other assets and cash collateral, gross	9,838	9,838	9,553
Other assets	8,101	8,101	7,762
Recurring \| Level 1
Assets, Fair Value Disclosure [Abstract]
Federal funds sold and securities borrowed or purchased under agreements to resell	0	0	0
Investments	160,038	160,038	151,499
Loans	0	0	0
Mortgage servicing rights (MSRs)	0	0	0
Assets before netting	$ 268,806	$ 268,806	$ 261,637
Total as a percentage of gross assets	19.00%	19.00%	16.10%
Liabilities, Fair Value Disclosure [Abstract]
Interest-bearing deposits	$ 0	$ 0	$ 0
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase, Gross	0	0	0
Securities sold, not yet purchased	51,802	51,802	59,463
Short-term borrowings	0	0	0
Long-term debt, at fair value	0	0	0
Total liabilities, Gross	$ 55,556	$ 55,556	$ 63,164
Total as a percentage of gross liabilities	6.40%	6.40%	5.90%
Recurring \| Level 1 \| Trading derivatives liabilities
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	$ 3,754	$ 3,754	$ 3,701
Recurring \| Level 1 \| Trading derivatives liabilities \| Interest rate contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	8	8	77
Recurring \| Level 1 \| Trading derivatives liabilities \| Foreign exchange contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	3	3	0
Recurring \| Level 1 \| Trading derivatives liabilities \| Equity contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	3,424	3,424	2,955
Recurring \| Level 1 \| Trading derivatives liabilities \| Commodity contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	319	319	669
Recurring \| Level 1 \| Trading derivatives liabilities \| Credit derivatives
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	0	0	0
Recurring \| Level 1 \| Non-trading derivatives and other financial liabilities
Liabilities, Fair Value Disclosure [Abstract]
Other liabilities, gross	0	0	0
Recurring \| Level 1 \| Mortgage-backed securities - U.S. agency-sponsored
Assets, Fair Value Disclosure [Abstract]
Trading account assets	0	0	0
Investments	0	0	0
Recurring \| Level 1 \| Mortgage-backed securities - Residential
Assets, Fair Value Disclosure [Abstract]
Trading account assets	0	0	0
Investments	0	0	0
Recurring \| Level 1 \| Mortgage-backed securities - Commercial
Assets, Fair Value Disclosure [Abstract]
Trading account assets	0	0	0
Investments	0	0	0
Recurring \| Level 1 \| Mortgage-backed securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	0	0	0
Investments	0	0	0
Recurring \| Level 1 \| U.S. Treasury and federal agency securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	25,096	25,096	15,991
Investments	111,139	111,139	110,710
Recurring \| Level 1 \| State and municipal securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	0	0	0
Investments	0	0	0
Recurring \| Level 1 \| Foreign government
Assets, Fair Value Disclosure [Abstract]
Trading account assets	38,226	38,226	37,995
Investments	45,463	45,463	37,280
Recurring \| Level 1 \| Corporate
Assets, Fair Value Disclosure [Abstract]
Trading account assets	47	47	1,337
Investments	3,119	3,119	1,739
Recurring \| Level 1 \| Equity securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	41,705	41,705	51,346
Investments	317	317	1,770
Recurring \| Level 1 \| Asset-backed securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	0	0	0
Investments	0	0	0
Recurring \| Level 1 \| Other debt securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	1	1	0
Investments	0	0	0
Recurring \| Level 1 \| Non-marketable equity securities
Assets, Fair Value Disclosure [Abstract]
Investments	0	0	0
Recurring \| Level 1 \| Trading securities (excluding trading account derivatives)
Assets, Fair Value Disclosure [Abstract]
Trading account assets	105,075	105,075	106,669
Recurring \| Level 1 \| Trading account assets
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	3,533	3,533	3,469
Recurring \| Level 1 \| Trading account assets \| Interest rate contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	8	8	74
Recurring \| Level 1 \| Trading account assets \| Foreign exchange contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	2	2	0
Recurring \| Level 1 \| Trading account assets \| Equity contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	3,266	3,266	2,748
Recurring \| Level 1 \| Trading account assets \| Commodity contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	257	257	647
Recurring \| Level 1 \| Trading account assets \| Credit derivatives
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	0	0	0
Recurring \| Level 1 \| Non-trading derivatives and other financial assets
Assets, Fair Value Disclosure [Abstract]
Other assets, gross	160	160	0
Recurring \| Level 2
Assets, Fair Value Disclosure [Abstract]
Federal funds sold and securities borrowed or purchased under agreements to resell	173,674	173,674	187,922
Investments	136,543	136,543	144,064
Loans	2,858	2,858	2,793
Mortgage servicing rights (MSRs)	0	0	0
Assets before netting	$ 1,109,876	$ 1,109,876	$ 1,322,433
Total as a percentage of gross assets	78.60%	78.60%	81.40%
Liabilities, Fair Value Disclosure [Abstract]
Interest-bearing deposits	$ 1,262	$ 1,262	$ 1,198
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase, Gross	69,799	69,799	82,811
Securities sold, not yet purchased	11,697	11,697	11,057
Short-term borrowings	675	675	1,152
Long-term debt, at fair value	18,043	18,043	18,890
Total liabilities, Gross	$ 792,016	$ 792,016	$ 982,447
Total as a percentage of gross liabilities	91.10%	91.10%	91.90%
Recurring \| Level 2 \| Trading derivatives liabilities
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	$ 688,615	$ 688,615	$ 865,562
Recurring \| Level 2 \| Trading derivatives liabilities \| Interest rate contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	458,048	458,048	617,933
Recurring \| Level 2 \| Trading derivatives liabilities \| Foreign exchange contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	151,412	151,412	158,354
Recurring \| Level 2 \| Trading derivatives liabilities \| Equity contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	26,037	26,037	26,616
Recurring \| Level 2 \| Trading derivatives liabilities \| Commodity contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	19,260	19,260	22,872
Recurring \| Level 2 \| Trading derivatives liabilities \| Credit derivatives
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	33,858	33,858	39,787
Recurring \| Level 2 \| Non-trading derivatives and other financial liabilities
Liabilities, Fair Value Disclosure [Abstract]
Other liabilities, gross	1,925	1,925	1,777
Recurring \| Level 2 \| Mortgage-backed securities - U.S. agency-sponsored
Assets, Fair Value Disclosure [Abstract]
Trading account assets	26,101	26,101	25,968
Investments	36,080	36,080	36,053
Recurring \| Level 2 \| Mortgage-backed securities - Residential
Assets, Fair Value Disclosure [Abstract]
Trading account assets	1,374	1,374	2,158
Investments	7,227	7,227	8,355
Recurring \| Level 2 \| Mortgage-backed securities - Commercial
Assets, Fair Value Disclosure [Abstract]
Trading account assets	2,565	2,565	3,903
Investments	526	526	553
Recurring \| Level 2 \| Mortgage-backed securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	30,040	30,040	32,029
Investments	43,833	43,833	44,961
Recurring \| Level 2 \| U.S. Treasury and federal agency securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	2,664	2,664	4,483
Investments	11,223	11,223	12,974
Recurring \| Level 2 \| State and municipal securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	3,547	3,547	3,161
Investments	9,231	9,231	10,519
Recurring \| Level 2 \| Foreign government
Assets, Fair Value Disclosure [Abstract]
Trading account assets	19,365	19,365	26,736
Investments	49,899	49,899	52,739
Recurring \| Level 2 \| Corporate
Assets, Fair Value Disclosure [Abstract]
Trading account assets	17,574	17,574	25,640
Investments	12,264	12,264	9,746
Recurring \| Level 2 \| Equity securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	3,192	3,192	4,281
Investments	67	67	274
Recurring \| Level 2 \| Asset-backed securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	1,640	1,640	1,252
Investments	9,312	9,312	11,957
Recurring \| Level 2 \| Other debt securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	10,374	10,374	9,221
Investments	661	661	661
Recurring \| Level 2 \| Non-marketable equity securities
Assets, Fair Value Disclosure [Abstract]
Investments	53	53	233
Recurring \| Level 2 \| Trading securities (excluding trading account derivatives)
Assets, Fair Value Disclosure [Abstract]
Trading account assets	88,396	88,396	106,803
Recurring \| Level 2 \| Trading account assets
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	698,919	698,919	871,499
Recurring \| Level 2 \| Trading account assets \| Interest rate contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	478,443	478,443	634,318
Recurring \| Level 2 \| Trading account assets \| Foreign exchange contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	147,457	147,457	154,744
Recurring \| Level 2 \| Trading account assets \| Equity contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	22,086	22,086	19,969
Recurring \| Level 2 \| Trading account assets \| Commodity contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	16,479	16,479	21,850
Recurring \| Level 2 \| Trading account assets \| Credit derivatives
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	34,454	34,454	40,618
Recurring \| Level 2 \| Non-trading derivatives and other financial assets
Assets, Fair Value Disclosure [Abstract]
Other assets, gross	9,486	9,486	9,352
Recurring \| Level 3
Assets, Fair Value Disclosure [Abstract]
Federal funds sold and securities borrowed or purchased under agreements to resell	1,415	1,415	3,398
Investments	5,430	5,430	6,273
Loans	2,655	2,655	3,108
Mortgage servicing rights (MSRs)	1,766	1,766	1,845
Assets before netting	$ 33,844	$ 33,844	$ 41,328
Total as a percentage of gross assets	2.40%	2.40%	2.50%
Liabilities, Fair Value Disclosure [Abstract]
Interest-bearing deposits	$ 458	$ 458	$ 486
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase, Gross	1,259	1,259	1,043
Securities sold, not yet purchased	234	234	424
Short-term borrowings	102	102	344
Long-term debt, at fair value	8,195	8,195	7,290
Total liabilities, Gross	$ 22,218	$ 22,218	$ 23,524
Total as a percentage of gross liabilities	2.60%	2.60%	2.20%
Recurring \| Level 3 \| Trading derivatives liabilities
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	$ 11,965	$ 11,965	$ 13,930
Recurring \| Level 3 \| Trading derivatives liabilities \| Interest rate contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	3,499	3,499	4,272
Recurring \| Level 3 \| Trading derivatives liabilities \| Foreign exchange contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	460	460	472
Recurring \| Level 3 \| Trading derivatives liabilities \| Equity contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	2,308	2,308	2,898
Recurring \| Level 3 \| Trading derivatives liabilities \| Commodity contracts
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	2,716	2,716	2,645
Recurring \| Level 3 \| Trading derivatives liabilities \| Credit derivatives
Liabilities, Fair Value Disclosure [Abstract]
Trading derivatives, liability	2,982	2,982	3,643
Recurring \| Level 3 \| Non-trading derivatives and other financial liabilities
Liabilities, Fair Value Disclosure [Abstract]
Other liabilities, gross	5	5	7
Recurring \| Level 3 \| Mortgage-backed securities - U.S. agency-sponsored
Assets, Fair Value Disclosure [Abstract]
Trading account assets	652	652	1,085
Investments	114	114	38
Recurring \| Level 3 \| Mortgage-backed securities - Residential
Assets, Fair Value Disclosure [Abstract]
Trading account assets	2,025	2,025	2,680
Investments	0	0	8
Recurring \| Level 3 \| Mortgage-backed securities - Commercial
Assets, Fair Value Disclosure [Abstract]
Trading account assets	222	222	440
Investments	2	2	1
Recurring \| Level 3 \| Mortgage-backed securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	2,899	2,899	4,205
Investments	116	116	47
Recurring \| Level 3 \| U.S. Treasury and federal agency securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	3	3	0
Investments	10	10	6
Recurring \| Level 3 \| State and municipal securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	277	277	241
Investments	2,165	2,165	2,180
Recurring \| Level 3 \| Foreign government
Assets, Fair Value Disclosure [Abstract]
Trading account assets	85	85	206
Investments	243	243	678
Recurring \| Level 3 \| Corporate
Assets, Fair Value Disclosure [Abstract]
Trading account assets	391	391	820
Investments	641	641	672
Recurring \| Level 3 \| Equity securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	3,284	3,284	2,219
Investments	445	445	681
Recurring \| Level 3 \| Asset-backed securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	3,377	3,377	3,294
Investments	558	558	549
Recurring \| Level 3 \| Other debt securities
Assets, Fair Value Disclosure [Abstract]
Trading account assets	2,288	2,288	4,372
Investments	10	10	0
Recurring \| Level 3 \| Non-marketable equity securities
Assets, Fair Value Disclosure [Abstract]
Investments	1,242	1,242	1,460
Recurring \| Level 3 \| Trading securities (excluding trading account derivatives)
Assets, Fair Value Disclosure [Abstract]
Trading account assets	12,604	12,604	15,357
Recurring \| Level 3 \| Trading account assets
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	9,782	9,782	11,269
Recurring \| Level 3 \| Trading account assets \| Interest rate contracts
Assets, Fair Value Disclosure [Abstract]
Trading derivatives, asset, Gross	2,859	2,859	4,061

This element represents the aggregate of the assets reported on the balance sheet at period end, presented on a gross basis even when derivatives and other financial assets are subject to master netting arrangements and qualify for net presentation in the statement of financial position.

No definition available.