CONSOLIDATED STATEMENT OF INCOME (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Revenues
Interest revenue	$ 17,537		$ 18,155
Interest expense	5,590		6,053
Net interest revenue	11,947		12,102
Commissions and fees	3,138		3,368
Principal transactions	1,931		3,167
Administration and other fiduciary fees	981		1,097
Realized gains (losses) on sales of investments, net	1,925		580
Other-than-temporary impairment losses on investments
Gross impairment losses	(1,327)	[1]	(1,733)	[1]
Less: Impairments recognized in AOCI	22		26
Net impairment losses recognized in earnings	(1,305)		(1,707)
Insurance premiums	635		672
Other revenue	154		447
Total non-interest revenues	7,459		7,624
Total revenues, net of interest expense	19,406		19,726
Provisions for credit losses and for benefits and claims
Provision for loan losses	2,828		2,899
Policyholder benefits and claims	229		260
Provision (release) for unfunded lending commitments	(38)		25
Total provisions for credit losses and for benefits and claims	3,019		3,184
Operating expenses
Compensation and benefits	6,385		6,409
Premises and equipment	799		825
Technology/communication	1,382		1,214
Advertising and marketing	503		397
Other operating	3,250		3,481
Total operating expenses	12,319		12,326
Income from continuing operations before income taxes	4,068		4,216
Provision for income taxes	1,006		1,185
Income from continuing operations	3,062		3,031
Discontinued operations
Income (loss) from discontinued operations	(3)		60
Gain (loss) on sale	(1)		4
Provision for income taxes	1		24
Income (loss) from discontinued operations, net of taxes	(5)		40
Net income before attribution of noncontrolling interests	3,057		3,071
Net income attributable to noncontrolling interests	126		72
Citigroup's net income	$ 2,931		$ 2,999
Basic earnings per share
Income from continuing operations (in dollars per share)	$ 0.98	[2],[3]	$ 1.01	[2],[3]
Income from discontinued operations, net of taxes (in dollars per share)			$ 0.01	[2],[3]
Net income (in dollars per share)	$ 0.98	[2],[3]	$ 1.02	[2],[3]
Weighted average common shares outstanding (in shares)	2,926.2		2,904.4
Diluted earnings per share
Income from continuing operations (in dollars per share)	$ 0.96	[2],[3]	$ 0.97	[2],[3]
Income from discontinued operations, net of taxes (in dollars per share)			$ 0.01	[2],[3]
Net income (in dollars per share)	$ 0.95	[2],[3]	$ 0.99	[2],[3]
Adjusted weighted average common shares outstanding	3,014.5	[3]	2,996.6	[3]

[1] The first quarter of 2012 includes the recognition of a $1,181 million impairment charge related to Citi's investment in Akbank. See Note 11 to the Consolidated Financial Statements.

[2] Due to rounding, earnings pershare on continuing operations and discontinued operations may not sum to earnings per share on net income.

[3] Earnings per share amounts and adjusted weighted average common shares outstanding for all periods reflect Citigroup's 1-for-10 reverse stock split, which was effective May 6, 2011.