CONSOLIDATED STATEMENT OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Revenues
Interest revenue		$ 14,423	$ 14,167
Interest expense		3,566	2,940
Net interest revenue		10,857	11,227
Commissions and fees		2,759	2,463
Principal transactions		3,022	1,840
Administration and other fiduciary fees		893	811
Realized gains on sales of investments, net		192	186
Other-than-temporary impairment losses on investments
Gross impairment losses		(12)	(465)
Less: Impairments recognized in AOCI		0	0
Net impairment losses recognized in earnings		(12)	(465)
Insurance premiums		169	264
Other revenue		240	1,229
Total non-interest revenues		7,263	6,328
Total revenues, net of interest expense		18,120	17,555
Provisions for credit losses and for benefits and claims
Provision for loan losses		1,675	1,886
Policyholder benefits and claims		30	88
Provision (release) for unfunded lending commitments		(43)	71
Total provisions for credit losses and for benefits and claims		1,662	2,045
Operating expenses
Compensation and benefits		5,534	5,556
Premises and equipment		620	651
Technology/communication		1,659	1,649
Advertising and marketing		373	390
Other operating		2,291	2,277
Total operating expenses		10,477	10,523
Income from continuing operations before income taxes		5,981	4,987
Provision for income taxes		1,863	1,479
Income from continuing operations		4,118	3,508
Discontinued operations
Loss from discontinued operations		(28)	(3)
Benefit for income taxes		(10)	(1)
Loss from discontinued operations, net of taxes		(18)	(2)
Net income before attribution of noncontrolling interests		4,100	3,506
Noncontrolling interests		10	5
Citigroup’s net income		$ 4,090	$ 3,501
Basic earnings per share
Income from continuing operations (in dollars per share)	[1]	$ 1.36	$ 1.11
Loss from discontinued operations, net of taxes (in dollars per share)	[1]	(0.01)	0.00
Net income (in dollars per share)	[1]	$ 1.35	$ 1.10
Weighted average common shares outstanding (in shares)		2,765.3	2,943.0
Diluted earnings per share
Income from continuing operations (in dollars per share)		$ 1.36	$ 1.11
Loss from discontinued operations, net of taxes (in dollars per share)		(0.01)	0.00
Net income (in dollars per share)		$ 1.35	$ 1.10
Adjusted weighted average common shares outstanding (in shares)		2,765.5	2,943.1

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