Fair Value Measurement - Recurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	$ 958,412		$ 1,328,428
Amounts netted on the Consolidated balance sheets	(890,961)		(1,249,453)
Derivative receivables balance	67,451		78,975
Trading assets	377,870		398,988
Available-for-sale securities	266,201		298,752
Mortgage servicing rights	7,571	$ 6,641	7,436	$ 8,347	$ 8,552	$ 9,614
Gross derivative payables	945,997		1,310,773
Derivative, netting adjustments	(886,971)		(1,239,657)
Derivative payables	59,026		71,116
Fair value assets and liabilities measured on recurring basis - supplemental data
Reduction in level 3 derivative receivable and derivative payable balances	1,900		2,500
Costs of the private equity investment portfolio	4,000		6,000
Alternative investments, net asset value, fair value	1,600		1,500
Interest rate contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	656,663		950,257
Amounts netted on the Consolidated balance sheets	(625,340)		(916,532)
Derivative receivables balance	31,323		33,725
Gross derivative payables	621,857		918,379
Derivative, netting adjustments	(607,977)		(900,634)
Derivative payables	13,880		17,745
Credit derivatives
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	54,577		76,842
Amounts netted on the Consolidated balance sheets	(53,256)		(75,004)
Derivative receivables balance	1,321		1,838
Gross derivative payables	53,830		75,895
Derivative, netting adjustments	(52,568)		(74,302)
Derivative payables	1,262		1,593
Foreign exchange contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	174,850		215,187
Amounts netted on the Consolidated balance sheets	(156,510)		(193,934)
Derivative receivables balance	18,340		21,253
Gross derivative payables	189,653		224,614
Derivative, netting adjustments	(171,197)		(201,644)
Derivative payables	18,456		22,970
Equity
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	42,390		42,489
Amounts netted on the Consolidated balance sheets	(36,332)		(34,312)
Derivative receivables balance	6,058		8,177
Gross derivative payables	47,978		46,262
Derivative, netting adjustments	(36,439)		(34,522)
Derivative payables	11,539		11,740
Commodity contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	29,932		43,653
Amounts netted on the Consolidated balance sheets	(19,523)		(29,671)
Derivative receivables balance	10,409		13,982
Gross derivative payables	32,679		45,623
Derivative, netting adjustments	(18,790)		(28,555)
Derivative payables	13,889		17,068
Trading assets
Fair value assets and liabilities measured on recurring basis - supplemental data
Alternative investments, net asset value, fair value	68		124
Other assets
Fair value assets and liabilities measured on recurring basis - supplemental data
Alternative investments, net asset value, fair value	1,500		1,400
US government-sponsored and enterprises obligations
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	45,500		59,300
Residential mortgage
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	13,700		17,000
Commercial loan
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	4,600		5,800
Residential conforming mortgage intended for sale to government agency
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	6,000		7,700
Reverse mortgage
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	2,800		3,400
Fair Value Hierarchy, Previous Classification, Level 2
Fair value assets and liabilities measured on recurring basis - supplemental data
Alternative investments, net asset value, fair value	337
Fair Value Hierarchy, Previous Classification, Level 3
Fair value assets and liabilities measured on recurring basis - supplemental data
Alternative investments, net asset value, fair value	1,200
Recurring
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Federal funds sold and securities purchased under resale agreements	28,670		28,585
Securities borrowed	495		992
Trading assets	310,351		319,889
Amounts netted on the Consolidated balance sheets	(890,961)		(1,249,453)
Derivative receivables balance	67,451		78,975
Trading assets	377,802		398,864
Available-for-sale securities	266,201		298,752
Loans, at fair value	2,431		2,611
Mortgage servicing rights	7,571		7,436
Total assets measured at fair value on a recurring basis	690,278		747,731
Deposits	11,485		8,807
Federal funds purchased and securities loaned or sold under repurchase agreements	3,586		2,979
Other borrowed funds	13,987		14,739
Trading liabilities excluding derivatives	80,396		81,699
Derivative, netting adjustments	(886,971)		(1,239,657)
Derivative payables	59,026		71,116
Trading liabilities	139,422		152,815
Accounts payable and other liabilities	23		26
Beneficial interests issued by consolidated VIEs, at fair value	1,330		2,162
Long-term debt	31,316		30,226
Total liabilities measured at fair value on a recurring basis	201,149		211,754
Recurring | Interest rate contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Amounts netted on the Consolidated balance sheets	(625,340)		(916,532)
Derivative receivables balance	31,323		33,725
Derivative, netting adjustments	(607,977)		(900,634)
Derivative payables	13,880		17,745
Recurring | Credit derivatives
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Amounts netted on the Consolidated balance sheets	(53,256)		(75,004)
Derivative receivables balance	1,321		1,838
Derivative, netting adjustments	(52,568)		(74,302)
Derivative payables	1,262		1,593
Recurring | Foreign exchange contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Amounts netted on the Consolidated balance sheets	(156,510)		(193,934)
Derivative receivables balance	18,340		21,253
Derivative, netting adjustments	(171,197)		(201,644)
Derivative payables	18,456		22,970
Recurring | Equity
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Amounts netted on the Consolidated balance sheets	(36,332)		(34,312)
Derivative receivables balance	6,058		8,177
Derivative, netting adjustments	(36,439)		(34,522)
Derivative payables	11,539		11,740
Recurring | Commodity contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Amounts netted on the Consolidated balance sheets	(19,523)		(29,671)
Derivative receivables balance	10,409		13,982
Derivative, netting adjustments	(18,790)		(28,555)
Derivative payables	13,889		17,068
Recurring | Private equity investments
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	2,295		5,497
Recurring | All other assets
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	4,813		4,994
Recurring | Other assets
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	8,603		11,909
Recurring | US government-sponsored and enterprises obligations
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	67,400		84,100
Recurring | Total debt instruments
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	185,611		199,650
Recurring | Total mortgage-backed securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	32,193		36,117
Available-for-sale securities	119,095		137,322
Recurring | Mortgage-backed securities, U.S. government agencies
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	28,799		32,840
Available-for-sale securities	57,315		65,319
Recurring | Mortgage-backed securities, Residential - nonagency
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	2,083		2,044
Available-for-sale securities	39,573		50,895
Recurring | Mortgage-backed securities, Commercial - nonagency
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	1,311		1,233
Available-for-sale securities	22,207		21,108
Recurring | U.S. Treasury and government agencies
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	25,815		26,276
Available-for-sale securities	11,590		13,645
Recurring | Obligations of U.S. states and municipalities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	8,011		10,571
Available-for-sale securities	31,424		30,068
Recurring | Certificates of deposit
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	429		1,103
Recurring | Certificates of deposit, bankers’ acceptances and commercial paper
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	947		1,429
Recurring | Non-U.S. government debt securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	54,627		53,450
Available-for-sale securities	42,792		52,743
Recurring | Corporate debt securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	25,798		31,088
Available-for-sale securities	15,822		18,532
Recurring | Loans
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	33,982		36,367
Recurring | Asset-backed securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	4,238		4,352
Recurring | Asset-backed securities, Collateralized loan obligations
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	31,372		30,194
Recurring | Asset-backed securities, other
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	10,956		12,615
Recurring | Equity securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	108,586		105,945
Available-for-sale securities	2,721		2,530
Recurring | Physical commodities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	4,899		4,482
Recurring | Other debt and equity instruments
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	11,255		9,812
Recurring | Level 1
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Federal funds sold and securities purchased under resale agreements	0		0
Securities borrowed	0		0
Trading assets	156,011		151,313
Gross derivative receivables	1,541		1,478
Trading assets	157,552		152,791
Available-for-sale securities	37,813		40,195
Loans, at fair value	0		0
Mortgage servicing rights	0		0
Total assets measured at fair value on a recurring basis	199,457		197,652
Deposits	0		0
Federal funds purchased and securities loaned or sold under repurchase agreements	0		0
Other borrowed funds	0		0
Trading liabilities excluding derivatives	63,033		62,914
Gross derivative payables	1,370		1,386
Trading liabilities	64,403		64,300
Accounts payable and other liabilities	0		0
Beneficial interests issued by consolidated VIEs, at fair value	0		0
Long-term debt	0		0
Total liabilities measured at fair value on a recurring basis	64,403		64,300
Recurring | Level 1 | Interest rate contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	592		473
Gross derivative payables	509		499
Recurring | Level 1 | Credit derivatives
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	0		0
Gross derivative payables	0		0
Recurring | Level 1 | Foreign exchange contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	758		758
Gross derivative payables	759		746
Recurring | Level 1 | Equity
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	0		0
Gross derivative payables	0		0
Recurring | Level 1 | Commodity contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	191		247
Gross derivative payables	102		141
Recurring | Level 1 | Private equity investments
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	144		648
Recurring | Level 1 | All other assets
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	3,948		4,018
Recurring | Level 1 | Other assets
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	4,092		4,666
Recurring | Level 1 | Total debt instruments
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	44,469		43,684
Recurring | Level 1 | Total mortgage-backed securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	5		14
Available-for-sale securities	0		0
Recurring | Level 1 | Mortgage-backed securities, U.S. government agencies
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	5		14
Available-for-sale securities	0		0
Recurring | Level 1 | Mortgage-backed securities, Residential - nonagency
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	0		0
Available-for-sale securities	0		0
Recurring | Level 1 | Mortgage-backed securities, Commercial - nonagency
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	0		0
Available-for-sale securities	0		0
Recurring | Level 1 | U.S. Treasury and government agencies
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	19,151		17,816
Available-for-sale securities	11,544		13,591
Recurring | Level 1 | Obligations of U.S. states and municipalities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	0		0
Available-for-sale securities	0		0
Recurring | Level 1 | Certificates of deposit
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	0		0
Recurring | Level 1 | Certificates of deposit, bankers’ acceptances and commercial paper
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	0		0
Recurring | Level 1 | Non-U.S. government debt securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	25,313		25,854
Available-for-sale securities	23,548		24,074
Recurring | Level 1 | Corporate debt securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	0		0
Available-for-sale securities	0		0
Recurring | Level 1 | Loans
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	0		0
Recurring | Level 1 | Asset-backed securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	0		0
Recurring | Level 1 | Asset-backed securities, Collateralized loan obligations
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	0		0
Recurring | Level 1 | Asset-backed securities, other
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	0		0
Recurring | Level 1 | Equity securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	107,828		104,890
Available-for-sale securities	2,721		2,530
Recurring | Level 1 | Physical commodities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	3,714		2,739
Recurring | Level 1 | Other debt and equity instruments
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	0		0
Recurring | Level 2
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Federal funds sold and securities purchased under resale agreements	28,670		28,585
Securities borrowed	495		992
Trading assets	138,399		146,087
Gross derivative receivables	945,743		1,314,385
Trading assets	1,084,142		1,460,472
Available-for-sale securities	227,513		257,520
Loans, at fair value	136		70
Mortgage servicing rights	0		0
Total assets measured at fair value on a recurring basis	1,341,146		1,750,280
Deposits	7,957		5,948
Federal funds purchased and securities loaned or sold under repurchase agreements	3,586		2,979
Other borrowed funds	12,726		13,286
Trading liabilities excluding derivatives	17,291		18,713
Gross derivative payables	932,753		1,294,761
Trading liabilities	950,044		1,313,474
Accounts payable and other liabilities	0		0
Beneficial interests issued by consolidated VIEs, at fair value	190		1,016
Long-term debt	18,727		18,349
Total liabilities measured at fair value on a recurring basis	993,230		1,355,052
Recurring | Level 2 | Interest rate contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	652,204		945,635
Gross derivative payables	618,340		914,357
Recurring | Level 2 | Credit derivatives
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	51,926		73,853
Gross derivative payables	51,611		73,095
Recurring | Level 2 | Foreign exchange contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	171,741		212,153
Gross derivative payables	186,948		221,066
Recurring | Level 2 | Equity
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	40,618		39,937
Gross derivative payables	44,358		41,925
Recurring | Level 2 | Commodity contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	29,254		42,807
Gross derivative payables	31,496		44,318
Recurring | Level 2 | Private equity investments
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	164		2,624
Recurring | Level 2 | All other assets
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	26		17
Recurring | Level 2 | Other assets
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	190		2,641
Recurring | Level 2 | Total debt instruments
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	126,480		134,960
Recurring | Level 2 | Total mortgage-backed securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	31,026		34,212
Available-for-sale securities	119,082		137,193
Recurring | Level 2 | Mortgage-backed securities, U.S. government agencies
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	27,893		31,904
Available-for-sale securities	57,315		65,319
Recurring | Level 2 | Mortgage-backed securities, Residential - nonagency
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	1,960		1,381
Available-for-sale securities	39,560		50,865
Recurring | Level 2 | Mortgage-backed securities, Commercial - nonagency
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	1,173		927
Available-for-sale securities	22,207		21,009
Recurring | Level 2 | U.S. Treasury and government agencies
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	6,664		8,460
Available-for-sale securities	46		54
Recurring | Level 2 | Obligations of U.S. states and municipalities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	6,764		9,298
Available-for-sale securities	31,424		30,068
Recurring | Level 2 | Certificates of deposit
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	429		1,103
Recurring | Level 2 | Certificates of deposit, bankers’ acceptances and commercial paper
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	947		1,429
Recurring | Level 2 | Non-U.S. government debt securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	29,106		27,294
Available-for-sale securities	19,244		28,669
Recurring | Level 2 | Corporate debt securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	24,855		28,099
Available-for-sale securities	15,822		18,532
Recurring | Level 2 | Loans
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	24,419		23,080
Recurring | Level 2 | Asset-backed securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	2,699		3,088
Recurring | Level 2 | Asset-backed securities, Collateralized loan obligations
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	30,600		29,402
Recurring | Level 2 | Asset-backed securities, other
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	10,866		12,499
Recurring | Level 2 | Equity securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	448		624
Available-for-sale securities	0		0
Recurring | Level 2 | Physical commodities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	1,185		1,741
Recurring | Level 2 | Other debt and equity instruments
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	10,286		8,762
Recurring | Level 3
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Federal funds sold and securities purchased under resale agreements	0		0
Securities borrowed	0		0
Trading assets	15,941		22,489
Gross derivative receivables	11,128		12,565
Trading assets	27,069		35,054
Available-for-sale securities	875		1,037
Loans, at fair value	2,295		2,541
Mortgage servicing rights	7,571		7,436
Total assets measured at fair value on a recurring basis	40,636		49,252
Deposits	3,528		2,859
Federal funds purchased and securities loaned or sold under repurchase agreements	0		0
Other borrowed funds	1,261		1,453
Trading liabilities excluding derivatives	72		72
Gross derivative payables	11,874		14,626
Trading liabilities	11,946		14,698
Accounts payable and other liabilities	23		26
Beneficial interests issued by consolidated VIEs, at fair value	1,140		1,146
Long-term debt	12,589		11,877
Total liabilities measured at fair value on a recurring basis	30,487		32,059
Recurring | Level 3 | Interest rate contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	3,867		4,149
Gross derivative payables	3,008		3,523
Recurring | Level 3 | Credit derivatives
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	2,651		2,989
Gross derivative payables	2,219		2,800
Recurring | Level 3 | Foreign exchange contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	2,351		2,276
Gross derivative payables	1,946		2,802
Recurring | Level 3 | Equity
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	1,772		2,552
Gross derivative payables	3,620		4,337
Recurring | Level 3 | Commodity contracts
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Gross derivative receivables	487		599
Gross derivative payables	1,081		1,164
Recurring | Level 3 | Private equity investments
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	1,987		2,225
Recurring | Level 3 | All other assets
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	839		959
Recurring | Level 3 | Other assets
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	2,826		3,184
Recurring | Level 3 | Total debt instruments
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	14,662		21,006
Recurring | Level 3 | Total mortgage-backed securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	1,162		1,891
Available-for-sale securities	13		129
Recurring | Level 3 | Mortgage-backed securities, U.S. government agencies
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	901		922
Available-for-sale securities	0		0
Recurring | Level 3 | Mortgage-backed securities, Residential - nonagency
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	123		663
Available-for-sale securities	13		30
Recurring | Level 3 | Mortgage-backed securities, Commercial - nonagency
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	138		306
Available-for-sale securities	$ 0		99
Recurring | Level 3 | U.S. Treasury and government agencies
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets			0
Available-for-sale securities	$ 0		0
Recurring | Level 3 | Obligations of U.S. states and municipalities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	1,247		1,273
Available-for-sale securities	0		0
Recurring | Level 3 | Certificates of deposit
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	0		0
Recurring | Level 3 | Certificates of deposit, bankers’ acceptances and commercial paper
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	0		0
Recurring | Level 3 | Non-U.S. government debt securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	208		302
Available-for-sale securities	0		0
Recurring | Level 3 | Corporate debt securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	943		2,989
Available-for-sale securities	0		0
Recurring | Level 3 | Loans
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	9,563		13,287
Recurring | Level 3 | Asset-backed securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	1,539		1,264
Recurring | Level 3 | Asset-backed securities, Collateralized loan obligations
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	772		792
Recurring | Level 3 | Asset-backed securities, other
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Available-for-sale securities	90		116
Recurring | Level 3 | Equity securities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	310		431
Available-for-sale securities	0		0
Recurring | Level 3 | Physical commodities
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	0		2
Recurring | Level 3 | Other debt and equity instruments
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Trading assets	969		1,050
Recurring, excluding amounts measured at NAV | Other assets
Assets and liabilities measured at fair value on a recurring basis [Abstract]
Other	$ 7,108		$ 10,491