CONSOLIDATED STATEMENT OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Revenues
Interest revenue		$ 19,076	$ 16,332
Interest expense		7,317	5,160
Net interest revenue		11,759	11,172
Commissions and fees		2,926	3,030
Principal transactions		2,804	3,242
Administration and other fiduciary fees		839	905
Realized gains on sales of investments, net		130	170
Impairment losses on investments
Gross impairment losses		(8)	(28)
Net impairment losses recognized in earnings		(8)	(28)
Other revenue		126	381
Total non-interest revenues		6,817	7,700
Total revenues, net of interest expense		18,576	18,872
Provisions for credit losses and for benefits and claims
Provision for loan losses		1,944	1,803
Policyholder benefits and claims		12	26
Provision for unfunded lending commitments		24	28
Total provisions for credit losses and for benefits and claims		1,980	1,857
Operating expenses
Compensation and benefits		5,658	5,807
Premises and equipment		564	593
Technology/communication		1,720	1,758
Advertising and marketing		359	381
Other operating		2,283	2,386
Total operating expenses		10,584	10,925
Income from continuing operations before income taxes		6,012	6,090
Provision for income taxes		1,275	1,441
Income from continuing operations		4,737	4,649
Discontinued operations
Loss from discontinued operations		(2)	(7)
Loss from discontinued operations, net of taxes		(2)	(7)
Net income before attribution of noncontrolling interests		4,735	4,642
Noncontrolling interests		25	22
Citigroup’s net income		$ 4,710	$ 4,620
Basic earnings per share
Income from continuing operations (in dollars per share)	[1]	$ 1.88	$ 1.68
Income from discontinued operations, net of taxes (in dollars per share)	[1]	0	0
Net income (in dollars per share)	[1]	$ 1.88	$ 1.68
Weighted average common shares outstanding (in shares)		2,340.4	2,561.6
Diluted earnings per share
Income from continuing operations (in dollars per share)	[1]	$ 1.87	$ 1.68
Income (loss) from discontinued operations, net of taxes (in dollars per share)	[1]	0	0
Net income (in dollars per share)	[1]	$ 1.87	$ 1.68
Adjusted weighted average common shares outstanding (in shares)		2,342.4	2,563.0

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