FAIR VALUE MEASUREMENT (Details) (USD $)	1 Months Ended	3 Months Ended
	Feb. 29, 2008	Jun. 30, 2011	Dec. 31, 2010	Feb. 15, 2008
FAIR VALUE MEASUREMENT
Amount of auction rate securities in which Citigroup acted in the capacity of primary dealer		$ 18,000,000,000		$ 72,000,000,000
Maturity period of auction rate securities, period one (in days)	7
Maturity period of auction rate securities, period two (in days)	28
Maturity period of auction rate securities, period three (in days)	35
Weighted average FICO score of the underlying collateral for Alt-A mortgage securities recorded at fair value, low end of range		680
Weighted average FICO score of the underlying collateral for Alt-A mortgage securities recorded at fair value, high end of range		720
Residential mortgage-backed securities (RMBS) where collateral is composed of full documentation loans, above the high end of range (as a percent)		30.00%
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Federal funds sold and securities borrowed or purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell and securities borrowed		147,401,000,000	87,512,000,000
Mortgage servicing rights (MSRs)		4,258,000,000	4,554,000,000
Federal funds purchased and securities loaned or sold under agreements to repurchase		125,072,000,000	121,193,000,000
Short-term borrowings		1,938,000,000	2,429,000,000
Long-term debt, at fair value		26,999,000,000	25,997,000,000
Other financial liabilities measured on a recurring basis		8,008,000,000	9,710,000,000
Mortgage-backed securities | Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Investments		66,000,000	70,000,000
Interest rate contracts | Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		143,000,000	509,000,000
Total Gross Derivatives, Liabilities		131,000,000	489,000,000
Foreign exchange contracts | Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		12,000,000	11,000,000
Total Gross Derivatives, Liabilities		9,000,000	2,000,000
Equity contracts | Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		2,694,000,000	2,581,000,000
Total Gross Derivatives, Liabilities		3,422,000,000	2,551,000,000
U.S. government-sponsored agency guaranteed | Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Investments		66,000,000	70,000,000
U.S. Treasury and federal agency securities | Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		11,135,000,000	18,455,000,000
Investments		13,668,000,000	14,031,000,000
U.S. Treasury | Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		11,128,000,000	18,449,000,000
Investments		13,668,000,000	14,031,000,000
Agency obligations | Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		7,000,000	6,000,000
Foreign government | Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		72,151,000,000	64,096,000,000
Investments		47,397,000,000	51,419,000,000
Corporate | Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		49,000,000
Equity securities | Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		32,918,000,000	33,509,000,000
Investments		3,582,000,000	3,721,000,000
Securities sold, not yet purchased | Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Securities sold, not yet purchased			59,968,000,000
Level 1
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		116,253,000,000	116,060,000,000
Total Gross Derivatives, Assets		3,771,000,000	3,691,000,000
Total derivatives, assets		3,771,000,000	3,691,000,000
Investments		64,713,000,000	69,241,000,000
Total assets		184,737,000,000	188,992,000,000
Total as a percentage of gross assets (as a percent)		13.00%	13.80%
Securities sold, not yet purchased		80,262,000,000
Total Gross Derivatives, Liabilities		4,366,000,000	3,524,000,000
Total derivatives, liabilities		4,366,000,000	3,524,000,000
Total liabilities		84,628,000,000	63,492,000,000
Total as a percentage of gross liabilities (as a percent)		8.80%	6.70%
Level 1 | Commodity contracts
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		922,000,000	590,000,000
Total Gross Derivatives, Liabilities		804,000,000	482,000,000
Mortgage-backed securities | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		32,595,000,000	31,412,000,000
Investments		38,417,000,000	25,720,000,000
Prime | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		748,000,000	920,000,000
Investments		161,000,000	1,660,000,000
Alt-A | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		1,092,000,000	1,117,000,000
Investments		10,000,000	47,000,000
Subprime | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		710,000,000	911,000,000
Investments			119,000,000
Non-U.S. residential | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		613,000,000	828,000,000
Investments		1,643,000,000	316,000,000
Asset-based financing | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		1,260,000,000	1,141,000,000
Investments		5,179,000,000	3,624,000,000
Interest rate contracts | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		449,455,000,000	473,579,000,000
Total Gross Derivatives, Liabilities		444,152,000,000	472,936,000,000
Foreign exchange contracts | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		78,831,000,000	83,465,000,000
Total Gross Derivatives, Liabilities		81,267,000,000	87,411,000,000
Equity contracts | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		13,552,000,000	11,807,000,000
Total Gross Derivatives, Liabilities		31,837,000,000	27,486,000,000
Credit derivatives | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		55,598,000,000	51,819,000,000
Total Gross Derivatives, Liabilities		52,625,000,000	48,535,000,000
U.S. government-sponsored agency guaranteed | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		27,701,000,000	26,296,000,000
Investments		36,081,000,000	23,531,000,000
Commercial. | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		1,731,000,000	1,340,000,000
Investments		522,000,000	47,000,000
U.S. Treasury and federal agency securities | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		6,217,000,000	5,059,000,000
Investments		76,682,000,000	88,014,000,000
U.S. Treasury | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		3,198,000,000	1,719,000,000
Investments		29,712,000,000	44,417,000,000
Agency obligations | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		3,019,000,000	3,340,000,000
Investments		46,970,000,000	43,597,000,000
State and municipal securities | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		6,335,000,000	7,285,000,000
Investments		12,976,000,000	12,731,000,000
Foreign government | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		25,642,000,000	23,649,000,000
Investments		54,357,000,000	47,902,000,000
Corporate | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		46,723,000,000	46,263,000,000
Investments		15,151,000,000	15,152,000,000
Equity securities | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		5,604,000,000	3,151,000,000
Investments		258,000,000	184,000,000
Other debt securities | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		15,600,000,000	13,911,000,000
Investments		1,532,000,000	1,185,000,000
Securities sold, not yet purchased | Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Securities sold, not yet purchased			9,169,000,000
Level 2
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Federal funds sold and securities borrowed or purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell and securities borrowed		205,319,000,000	131,831,000,000
Trading securities		139,976,000,000	131,871,000,000
Total Gross Derivatives, Assets		608,250,000,000	631,643,000,000
Total derivatives, assets		608,250,000,000	631,643,000,000
Investments		205,239,000,000	194,647,000,000
Loans		1,250,000,000	1,159,000,000
Other financial assets measured on a recurring basis		16,051,000,000	19,425,000,000
Total assets		1,176,085,000,000	1,110,576,000,000
Total as a percentage of gross assets (as a percent)		82.60%	81.00%
Interest-bearing deposits		1,165,000,000	988,000,000
Federal funds purchased and securities loaned or sold under agreements to repurchase		185,343,000,000	169,162,000,000
Securities sold, not yet purchased		12,774,000,000
Total Gross Derivatives, Liabilities		620,823,000,000	647,336,000,000
Total derivatives, liabilities		620,823,000,000	647,336,000,000
Short-term borrowings		1,327,000,000	1,627,000,000
Long-term debt, at fair value		20,126,000,000	17,612,000,000
Other financial liabilities measured on a recurring basis		12,175,000,000	12,306,000,000
Total liabilities		853,733,000,000	858,200,000,000
Total as a percentage of gross liabilities (as a percent)		88.50%	90.00%
Level 2 | Commodity contracts
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		10,814,000,000	10,973,000,000
Total Gross Derivatives, Liabilities		10,942,000,000	10,968,000,000
Level 2 | Non-marketable equity securities
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Investments		687,000,000	135,000,000
Mortgage-backed securities | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		3,423,000,000	3,577,000,000
Investments		83,000,000	716,000,000
Prime | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		651,000,000	594,000,000
Investments		23,000,000	166,000,000
Alt-A | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		229,000,000	385,000,000
Investments		1,000,000	1,000,000
Subprime | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		723,000,000	1,125,000,000
Non-U.S. residential | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		323,000,000	224,000,000
Asset-based financing | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		4,616,000,000	6,618,000,000
Investments		4,475,000,000	5,424,000,000
Interest rate contracts | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		2,299,000,000	2,584,000,000
Total Gross Derivatives, Liabilities		2,098,000,000	3,314,000,000
Foreign exchange contracts | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		894,000,000	1,025,000,000
Total Gross Derivatives, Liabilities		912,000,000	861,000,000
Equity contracts | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		1,876,000,000	1,758,000,000
Total Gross Derivatives, Liabilities		3,721,000,000	3,397,000,000
Credit derivatives | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		8,471,000,000	13,222,000,000
Total Gross Derivatives, Liabilities		8,261,000,000	10,926,000,000
U.S. government-sponsored agency guaranteed | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		947,000,000	831,000,000
Investments		59,000,000	22,000,000
Commercial. | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		550,000,000	418,000,000
Investments			527,000,000
U.S. Treasury and federal agency securities | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		46,000,000	72,000,000
Investments			17,000,000
Agency obligations | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		46,000,000	72,000,000
Investments			17,000,000
State and municipal securities | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		246,000,000	208,000,000
Investments		355,000,000	504,000,000
Foreign government | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		903,000,000	566,000,000
Investments		329,000,000	358,000,000
Corporate | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		6,673,000,000	6,006,000,000
Investments		1,516,000,000	1,018,000,000
Equity securities | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		648,000,000	776,000,000
Investments		1,621,000,000	2,055,000,000
Other debt securities | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		1,695,000,000	1,305,000,000
Investments		653,000,000	727,000,000
Securities sold, not yet purchased | Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Securities sold, not yet purchased			187,000,000
Level 3
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Federal funds sold and securities borrowed or purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell and securities borrowed		3,431,000,000	4,911,000,000
Trading securities		18,250,000,000	19,128,000,000
Total Gross Derivatives, Assets		14,364,000,000	19,634,000,000
Total derivatives, assets		14,364,000,000	19,634,000,000
Investments		16,690,000,000	17,286,000,000
Loans		3,590,000,000	3,213,000,000
Mortgage servicing rights (MSRs)		4,258,000,000	4,554,000,000
Other financial assets measured on a recurring basis		2,449,000,000	2,509,000,000
Total assets		63,032,000,000	71,235,000,000
Total as a percentage of gross assets (as a percent)		4.40%	5.20%
Interest-bearing deposits		586,000,000	277,000,000
Federal funds purchased and securities loaned or sold under agreements to repurchase		1,078,000,000	1,261,000,000
Securities sold, not yet purchased		447,000,000
Total Gross Derivatives, Liabilities		16,875,000,000	20,566,000,000
Total derivatives, liabilities		16,875,000,000	20,566,000,000
Short-term borrowings		611,000,000	802,000,000
Long-term debt, at fair value		6,873,000,000	8,385,000,000
Other financial liabilities measured on a recurring basis		16,000,000	19,000,000
Total liabilities		26,486,000,000	31,497,000,000
Total as a percentage of gross liabilities (as a percent)		2.70%	3.30%
Level 3 | Commodity contracts
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		824,000,000	1,045,000,000
Total Gross Derivatives, Liabilities		1,883,000,000	2,068,000,000
Level 3 | Non-marketable equity securities
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Investments		7,658,000,000	6,467,000,000
Mortgage-backed securities | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		36,018,000,000	34,989,000,000
Investments		3,856,600,000	26,506,000,000
Prime | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		1,399,000,000	1,514,000,000
Investments		184,000,000	1,826,000,000
Alt-A | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		1,321,000,000	1,502,000,000
Investments		11,000,000	48,000,000
Subprime | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		1,433,000,000	2,036,000,000
Investments			119,000,000
Non-U.S. residential | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		936,000,000	1,052,000,000
Investments		1,643,000,000	316,000,000
Asset-based financing | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		5,876,000,000	7,759,000,000
Investments		9,654,000,000	9,048,000,000
Interest rate contracts | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		451,897,000,000	476,672,000,000
Total Gross Derivatives, Liabilities		446,381,000,000	476,739,000,000
Foreign exchange contracts | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		79,737,000,000	84,501,000,000
Total Gross Derivatives, Liabilities		82,188,000,000	88,274,000,000
Equity contracts | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		18,122,000,000	16,146,000,000
Total Gross Derivatives, Liabilities		38,980,000,000	33,434,000,000
Credit derivatives | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		64,069,000,000	65,041,000,000
Total Gross Derivatives, Liabilities		60,886,000,000	59,461,000,000
U.S. government-sponsored agency guaranteed | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		28,648,000,000	27,127,000,000
Investments		36,206,000,000	23,623,000,000
Commercial. | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		2,281,000,000	1,758,000,000
Investments		522,000,000	574,000,000
U.S. Treasury and federal agency securities | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		17,398,000,000	23,586,000,000
Investments		90,350,000,000	102,062,000,000
U.S. Treasury | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		14,326,000,000	20,168,000,000
Investments		43,380,000,000	58,448,000,000
Agency obligations | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		3,072,000,000	3,418,000,000
Investments		46,970,000,000	43,614,000,000
State and municipal securities | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		6,581,000,000	7,493,000,000
Investments		13,331,000,000	13,235,000,000
Foreign government | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		98,696,000,000	88,311,000,000
Investments		102,083,000,000	99,679,000,000
Corporate | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		53,445,000,000	52,269,000,000
Investments		16,667,000,000	16,170,000,000
Equity securities | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		39,170,000,000	37,436,000,000
Investments		5,461,000,000	5,960,000,000
Other debt securities | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		17,295,000,000	15,216,000,000
Investments		2,185,000,000	1,912,000,000
Securities sold, not yet purchased | Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Securities sold, not yet purchased			69,324,000,000
Gross inventory
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Federal funds sold and securities borrowed or purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell and securities borrowed		208,750,000,000	136,742,000,000
Trading securities		274,479,000,000	267,059,000,000
Total Gross Derivatives, Assets		626,385,000,000	654,968,000,000
Cash collateral paid		47,768,000,000	50,302,000,000
Total derivatives, assets		674,153,000,000	705,270,000,000
Investments		286,642,000,000	281,174,000,000
Loans		4,840,000,000	4,372,000,000
Mortgage servicing rights (MSRs)		4,258,000,000	4,554,000,000
Other financial assets measured on a recurring basis		18,500,000,000	21,934,000,000
Total assets		1,471,622,000,000	1,421,105,000,000
Total as a percentage of gross assets (as a percent)		100.00%	100.00%
Interest-bearing deposits		1,751,000,000	1,265,000,000
Federal funds purchased and securities loaned or sold under agreements to repurchase		186,421,000,000	170,423,000,000
Securities sold, not yet purchased		93,483,000,000
Total Gross Derivatives, Liabilities		642,064,000,000	671,426,000,000
Cash collateral received		39,852,000,000	38,319,000,000
Total derivatives, liabilities		681,916,000,000	709,745,000,000
Short-term borrowings		1,938,000,000	2,429,000,000
Long-term debt, at fair value		26,999,000,000	25,997,000,000
Other financial liabilities measured on a recurring basis		12,191,000,000	12,325,000,000
Total liabilities		1,004,699,000,000	991,508,000,000
Total as a percentage of gross liabilities (as a percent)		100.00%	100.00%
Gross inventory | Commodity contracts
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Total Gross Derivatives, Assets		12,560,000,000	12,608,000,000
Total Gross Derivatives, Liabilities		13,629,000,000	13,518,000,000
Gross inventory | Non-marketable equity securities
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Investments		8,345,000,000	6,602,000,000
Netting
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Federal funds sold and securities borrowed or purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell and securities borrowed		(61,349,000,000)	(49,230,000,000)
Total Gross Derivatives, Assets		(626,283,000,000)
Less: Netting agreements and market value adjustments to assets		(626,283,000,000)	(655,057,000,000)
Total derivatives, assets			(655,057,000,000)
Other financial assets measured on a recurring basis		(4,183,000,000)	(2,615,000,000)
Total assets		(691,815,000,000)	(706,902,000,000)
Federal funds purchased and securities loaned or sold under agreements to repurchase		(61,349,000,000)	(49,230,000,000)
Less: Netting agreements and market value adjustments to liabilities		(623,092,000,000)	(650,015,000,000)
Total derivatives, liabilities		(623,092,000,000)	(650,015,000,000)
Other financial liabilities measured on a recurring basis		(4,183,000,000)	(2,615,000,000)
Total liabilities		(688,624,000,000)	(701,860,000,000)
Mortgage-backed securities | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		36,018,000,000	34,989,000,000
Investments		38,566,000,000	26,506,000,000
Prime | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		1,399,000,000	1,514,000,000
Investments		184,000,000	1,826,000,000
Alt-A | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		1,321,000,000	1,502,000,000
Investments		11,000,000	48,000,000
Subprime | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		1,433,000,000	2,036,000,000
Investments			119,000,000
Non-U.S. residential | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		936,000,000	1,052,000,000
Investments		1,643,000,000	316,000,000
Asset-based financing | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		5,876,000,000	7,759,000,000
Investments		9,654,000,000	9,048,000,000
U.S. government-sponsored agency guaranteed | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		28,648,000,000	27,127,000,000
Investments		36,206,000,000	23,623,000,000
Commercial. | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		2,281,000,000	1,758,000,000
Investments		522,000,000	574,000,000
U.S. Treasury and federal agency securities | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		17,398,000,000	23,586,000,000
Investments		90,350,000,000	102,062,000,000
U.S. Treasury | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		14,326,000,000	20,168,000,000
Investments		43,380,000,000	58,448,000,000
Agency obligations | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		3,072,000,000	3,418,000,000
Investments		46,970,000,000	43,614,000,000
State and municipal securities | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		6,581,000,000	7,493,000,000
Investments		13,331,000,000	13,235,000,000
Foreign government | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		98,696,000,000	88,311,000,000
Investments		102,083,000,000	99,679,000,000
Corporate | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		53,445,000,000	52,269,000,000
Investments		16,667,000,000	16,170,000,000
Equity securities | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		39,170,000,000	37,436,000,000
Investments		5,461,000,000	5,960,000,000
Other debt securities | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Trading securities		17,295,000,000	15,216,000,000
Investments		2,185,000,000	1,912,000,000
Securities sold, not yet purchased | Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Securities sold, not yet purchased			69,324,000,000
Fair value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Federal funds sold and securities borrowed or purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell and securities borrowed		147,401,000,000	87,512,000,000
Trading securities		274,479,000,000	267,059,000,000
Total Gross Derivatives, Assets		47,870,000,000
Total derivatives, assets			50,213,000,000
Investments		286,642,000,000	281,174,000,000
Loans		4,840,000,000	4,372,000,000
Mortgage servicing rights (MSRs)		4,258,000,000	4,554,000,000
Other financial assets measured on a recurring basis		14,317,000,000	19,319,000,000
Total assets		779,807,000,000	714,203,000,000
Interest-bearing deposits		1,751,000,000	1,265,000,000
Federal funds purchased and securities loaned or sold under agreements to repurchase		125,072,000,000	121,193,000,000
Securities sold, not yet purchased		93,483,000,000
Total derivatives, liabilities		58,824,000,000	59,730,000,000
Short-term borrowings		1,938,000,000	2,429,000,000
Long-term debt, at fair value		26,999,000,000	25,997,000,000
Other financial liabilities measured on a recurring basis		8,008,000,000	9,710,000,000
Total liabilities		316,075,000,000	289,648,000,000
Fair value | Non-marketable equity securities
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Investments		$ 8,345,000,000	$ 6,602,000,000