CONSOLIDATED STATEMENT OF INCOME (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Revenues
Interest revenue	$ 15,350	[1]	$ 15,960	[1]
Interest expense	3,591	[1]	4,330	[1]
Net interest revenue	11,759	[1]	11,630	[1]
Commissions and fees	3,134		3,435
Principal transactions	2,888		2,504
Administration and other fiduciary fees	1,009		1,068
Realized gains on sales of investments, net	128		450
Other-than-temporary impairment losses on investments
Gross impairment losses	(201)	[2]	(272)	[2]
Less: Impairments recognized in AOCI			11
Net impairment losses recognized in earnings	(201)		(261)
Insurance premiums	595		590
Other revenue	812	[2]	832	[2]
Total non-interest revenues	8,365		8,618
Total revenues, net of interest expense	20,124		20,248
Provisions for credit losses and for benefits and claims
Provision for loan losses	1,793		2,214
Policyholder benefits and claims	208		231
Provision (release) for unfunded lending commitments	(27)		14
Total provisions for credit losses and for benefits and claims	1,974		2,459
Operating expenses
Compensation and benefits	6,010	[1]	6,335	[1]
Premises and equipment	805	[1]	844	[1]
Technology/communication	1,530	[1]	1,530	[1]
Advertising and marketing	458	[1]	449	[1]
Other operating	3,346	[1]	3,130	[1]
Total operating expenses	12,149	[1]	12,288	[1]
Income from continuing operations before income taxes	6,001		5,501
Provision for income taxes	2,050		1,570
Income from continuing operations	3,951		3,931
Discontinued operations
Income (loss) from discontinued operations	40		(103)
Gain on sale			56
Provision (benefit) for income taxes	3		(14)
Income (loss) from discontinued operations, net of taxes	37		(33)
Net income before attribution of noncontrolling interests	3,988		3,898
Noncontrolling interests	45		90
Citigroup's net income	$ 3,943		$ 3,808
Basic earnings per share
Income from continuing operations (in dollars per share)	$ 1.22	[3]	$ 1.24	[3]
Income (loss) from discontinued operations, net of taxes (in dollars per share)	$ 0.01	[3]	$ (0.01)	[3]
Net income (in dollars per share)	$ 1.24	[3]	$ 1.23	[3]
Weighted average common shares outstanding (in shares)	3,037.4		3,040.1
Diluted earnings per share
Income from continuing operations (in dollars per share)	$ 1.22		$ 1.24
Income (loss) from discontinued operations, net of taxes (in dollars per share)	$ 0.01		$ (0.01)
Net income (in dollars per share)	$ 1.23		$ 1.23
Adjusted weighted average common shares outstanding (in shares)	3,043.3		3,044.7

[1] Certain prior period revenue and expense lines and totals were reclassified to conform to the current period's presentation. See Note 3 to Notes to Consolidated Financial Statements.

[2] The first quarter of 2013 included the recognition of a $105 million impairment charge related to the carrying value of Citi's then-remaining 35% interest in the Morgan Stanley Smith Barney joint venture (MSSB), which was offset by the equity pickup from MSSB in the quarter that was recorded in Other revenue.

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