CONSOLIDATED STATEMENT OF INCOME (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Revenues
Interest revenue	$ 16,165		$ 17,537
Interest expense	4,281		5,590
Net interest revenue	11,884		11,947
Commissions and fees	3,532		3,138
Principal transactions	2,447		1,931
Administration and other fiduciary fees	1,068		981
Realized gains on sales of investments, net	450		1,925
Other-than-temporary impairment losses on investments
Gross impairment losses	(261)	[1]	(1,327)	[1]
Less: Impairments recognized in AOCI			22
Net impairment losses recognized in earnings	(261)		(1,305)
Insurance premiums	611		635
Other revenue	760		154
Total non-interest revenues	8,607		7,459
Total revenues, net of interest expense	20,491		19,406
Provisions for credit losses and for benefits and claims
Provision for loan losses	2,295		2,828
Policyholder benefits and claims	231		229
Provision (release) for unfunded lending commitments	14		(38)
Total provisions for credit losses and for benefits and claims	2,540		3,019
Operating expenses
Compensation and benefits	6,348		6,385
Premises and equipment	849		799
Technology/communication	1,550		1,382
Advertising and marketing	460		503
Other operating	3,191		3,250
Total operating expenses	12,398		12,319
Income from continuing operations before income taxes	5,553		4,068
Provision for income taxes	1,588		1,006
Income from continuing operations	3,965		3,062
Discontinued operations
Loss from discontinued operations	(155)		(3)
Gain (loss) on sale	56		(1)
Provision (benefit) for income taxes	(32)		1
Loss from discontinued operations, net of taxes	(67)		(5)
Net income before attribution of noncontrolling interests	3,898		3,057
Noncontrolling interests	90		126
Citigroup's net income	$ 3,808		$ 2,931
Basic earnings per share
Income from continuing operations (in dollars per share)	$ 1.25		$ 0.98
Income (loss) from discontinued operations, net of taxes (in dollars per share)	$ (0.02)
Net income (in dollars per share)	$ 1.23		$ 0.98
Weighted average common shares outstanding (in shares)	3,040.1		2,926.2
Diluted earnings per share
Income from continuing operations (in dollars per share)	$ 1.25	[2]	$ 0.96	[2]
Income (loss) from discontinued operations, net of taxes (in dollars per share)	$ (0.02)	[2]
Net income (in dollars per share)	$ 1.23	[2]	$ 0.95	[2]
Adjusted weighted average common shares outstanding (in shares)	3,044.7		3,014.5

[1] The first quarter 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] Due to rounding, earnings per share on continuing operations and discontinuing operations may not sum to earnings per share on net income.