CONSOLIDATED STATEMENT OF INCOME (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Revenues
Interest revenue	$ 15,463		$ 16,737		$ 47,263		$ 50,717
Interest expense	3,952		5,026		12,440		15,947
Net interest revenue	11,511		11,711		34,823		34,770
Commissions and fees	3,095		3,258		9,918		9,377
Principal transactions	1,101		976		6,188		4,547
Administration and other fiduciary fees	968		974		3,119		2,992
Realized gains on sales of investments, net	63		615		764		2,813
Other-than-temporary impairment losses on investments
Gross impairment losses	(39)	[1]	(3,470)	[1]	(462)	[1]	(4,969)	[1]
Less: Impairments recognized in AOCI							66
Net impairment losses recognized in earnings	(39)		(3,470)		(462)		(4,903)
Insurance premiums	556		597		1,728		1,810
Other revenue	625	[2]	(958)	[2]	2,508	[2]	(195)	[2]
Total non-interest revenues	6,369		1,992		23,763		16,441
Total revenues, net of interest expense	17,880		13,703		58,586		51,211
Provisions for credit losses and for benefits and claims
Provision for loan losses	1,652		2,436		5,693		7,620
Policyholder benefits and claims	204		225		635		668
Provision (release) for unfunded lending commitments	103		(41)		114		(72)
Total provisions for credit losses and for benefits and claims	1,959		2,620		6,442		8,216
Operating expenses
Compensation and benefits	5,828		6,113		18,238		18,580
Premises and equipment	763		842		2,369		2,439
Technology/communication	1,568		1,440		4,584		4,264
Advertising and marketing	458		589		1,387		1,651
Other operating	3,038		3,108		9,484		9,331
Total operating expenses	11,655		12,092		36,062		36,265
Income (loss) from continuing operations before income taxes	4,266		(1,009)		16,082		6,730
Provision for income taxes	1,080		(1,494)		4,777		221
Income from continuing operations	3,186		485		11,305		6,509
Discontinued operations
Income (loss) from discontinued operations	33		(1)		(19)		27
Gain (loss) on sale	6				62		(1)
Provision (benefit) for income taxes	(53)		(9)		(46)		(1)
Income from discontinued operations, net of taxes	92		8		89		27
Net income before attribution of noncontrolling interests	3,278		493		11,394		6,536
Noncontrolling interests	51		25		177		191
Citigroup's net income	$ 3,227		$ 468		$ 11,217		$ 6,345
Basic earnings per share
Income from continuing operations (in dollars per share)	$ 0.98	[3]	$ 0.15	[3]	$ 3.55	[3]	$ 2.11	[3]
Income from discontinued operations, net of taxes (in dollars per share)	$ 0.03	[3]			$ 0.03	[3]	$ 0.01	[3]
Net income (in dollars per share)	$ 1.01	[3]	$ 0.15	[3]	$ 3.58	[3]	$ 2.12	[3]
Weighted average common shares outstanding (in shares)	3,034.3	[3]	2,926.8	[3]	3,038.4	[3]	2,926.5	[3]
Diluted earnings per share
Income from continuing operations (in dollars per share)	$ 0.98	[3]	$ 0.15	[3]	$ 3.55	[3]	$ 2.05	[3]
Income from discontinued operations, net of taxes (in dollars per share)	$ 0.03	[3]			$ 0.03	[3]	$ 0.01	[3]
Net income (in dollars per share)	$ 1.00	[3]	$ 0.15	[3]	$ 3.57	[3]	$ 2.06	[3]
Adjusted weighted average common shares outstanding (in shares)	3,040.9	[3]	3,015.3	[3]	3,044.0	[3]	3,014.9	[3]

[1] Third quarter of 2012 included the recognition of a $3,340 million impairment charge related to the carrying value of Citi's remaining 35% interest in the Morgan Stanley Smith Barney joint venture (MSSB).The nine months of 2012 included the recognition of a $1,181 million impairment charge related to Citi's investment in Akbank. See Note 12 to the Consolidated Financial Statements.

[2] Other revenue for the third quarter of 2012 included a $1,344 million loss related to the sale of a 14% interest in MSSB. Additionally, Other revenue for the nine months of 2012 included the recognition of a $424 million loss related to the sale of Citi's 10.1% stake in Akbank.

[3] Due to rounding, earnings per share on continuing operations and Discontinued operations may not sum to earnings per share on net income.