CONSOLIDATED STATEMENT OF INCOME (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Revenues
Interest revenue	$ 14,600	[1]	$ 15,350	[1]
Interest expense	3,028	[1]	3,591	[1]
Net interest revenue	11,572	[1]	11,759	[1]
Commissions and fees	3,170	[1]	3,184	[1]
Principal transactions	1,971	[1]	2,888	[1]
Administration and other fiduciary fees	962	[1]	1,009	[1]
Realized gains on sales of investments, net	307	[1]	128	[1]
Other-than-temporary impairment losses on investments
Gross impairment losses	(72)	[1]	(201)	[1]
Less: Impairments recognized in AOCI	0	[1]	0	[1]
Net impairment gains (losses) recognized in earnings	(72)	[1]	(201)	[1]
Insurance premiums	497	[1]	545	[1]
Other revenue	1,329	[1]	894	[1]
Total non-interest revenues	8,164	[1]	8,447	[1]
Total revenues, net of interest expense	19,736	[1]	20,206	[1]
Provisions for credit losses and for benefits and claims
Provision for loan losses	1,755		1,793
Policyholder benefits and claims	197		208
Provision (release) for unfunded lending commitments	(37)		(27)
Total provisions for credit losses and for benefits and claims	1,915		1,974
Operating expenses
Compensation and benefits	5,520	[1]	6,010	[1]
Premises and equipment	709	[1]	805	[1]
Technology/communication	1,600	[1]	1,530	[1]
Advertising and marketing	392	[1]	458	[1]
Other operating	2,663	[1]	3,346	[1]
Total operating expenses	10,884	[1]	12,149	[1]
Income from continuing operations before income taxes	6,937		6,083
Provision for income taxes	2,120		2,131
Income from continuing operations	4,817		3,952
Discontinued operations
Income (loss) from discontinued operations	(8)		40
Gain on sale	0		0
Provision (benefit) for income taxes	(3)		3
Income (loss) from discontinued operations, net of taxes	(5)		37
Net income before attribution of noncontrolling interests	4,812		3,989
Noncontrolling interests	42		45
Citigroup’s net income	$ 4,770		$ 3,944
Basic earnings per share
Income from continuing operations (in dollars per share)	$ 1.51	[2]	$ 1.23	[2]
Income (loss) from discontinued operations, net of taxes (in dollars per share)	$ 0.00	[2]	$ 0.01	[2]
Net income (in dollars per share)	$ 1.51	[2]	$ 1.24	[2]
Weighted average common shares outstanding (in shares)	3,034.2		3,037.4
Diluted earnings per share
Income from continuing operations (in dollars per share)	$ 1.51	[2]	$ 1.22	[2]
Income (loss) from discontinued operations, net of taxes (in dollars per share)	$ 0.00	[2]	$ 0.01	[2]
Net income (in dollars per share)	$ 1.51	[2]	$ 1.23	[2]
Adjusted weighted average common shares outstanding (in shares)	3,039.3		3,043.3

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

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