CONSOLIDATED STATEMENT OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues
Interest revenue		$ 14,589	$ 19,712	$ 31,728	$ 38,788
Interest expense		3,509	7,762	9,156	15,079
Net interest revenue		11,080	11,950	22,572	23,709
Commissions and fees		2,933	2,881	5,954	5,807
Principal transactions		4,157	1,874	9,418	4,678
Administration and other fiduciary fees		819	869	1,673	1,708
Realized gains on sales of investments, net		748	468	1,180	598
Impairment losses on investments:
Impairment losses on investments and other assets		(69)	(5)	(124)	(13)
Provision for credit losses on AFS debt securities	[1]	(8)	0	(8)	0
Net impairment losses recognized in earnings		(77)	(5)	(132)	(13)
Other revenue (loss)		106	721	(168)	847
Total non-interest revenues		8,686	6,808	17,925	13,625
Total revenues, net of interest expense		19,766	18,758	40,497	37,334
Provisions for credit losses and for benefits and claims
Provision for credit losses on loans		7,696	2,089	14,140	4,033
Provision for credit losses on held-to-maturity (HTM) debt securities		31	0	37	0
Provision for credit losses on other assets		48	0	44	0
Policyholder benefits and claims		15	19	39	31
Provision for credit losses on unfunded lending commitments		113	(15)	670	9
Total provisions for credit losses and for benefits and claims		7,903	2,093	14,930	4,073
Operating expenses
Compensation and benefits		5,624	5,381	11,278	11,039
Premises and equipment		562	569	1,127	1,133
Technology/communication		1,741	1,724	3,464	3,444
Advertising and marketing		299	434	627	793
Other operating		2,189	2,392	4,513	4,675
Total operating expenses		10,415	10,500	21,009	21,084
Income (loss) from continuing operations before income taxes		1,448	6,165	4,558	12,177
Provision for income taxes		131	1,373	707	2,648
Income from continuing operations		1,317	4,792	3,851	9,529
Discontinued operations
Loss from discontinued operations		(1)	(10)	(19)	(12)
Benefit for income taxes		0	(27)	0	(27)
Income (loss) from discontinued operations, net of taxes		(1)	17	(19)	15
Net income before attribution of noncontrolling interests		1,316	4,809	3,832	9,544
Noncontrolling interests		0	10	(6)	35
Citigroup’s net income		$ 1,316	$ 4,799	$ 3,838	$ 9,509
Basic earnings per share
Income from continuing operations (in dollars per share)	[2]	$ 0.51	$ 1.94	$ 1.57	$ 3.81
Income from discontinued operations, net of taxes (in dollars per share)	[2]	0	0.01	(0.01)	0.01
Net income (in dollars per share)	[2]	$ 0.51	$ 1.95	$ 1.56	$ 3.82
Weighted average common shares outstanding (in shares)		2,081.7	2,286.1	2,089.8	2,313.2
Diluted earnings per share
Income from continuing operations (in dollars per share)	[2]	$ 0.51	$ 1.94	$ 1.57	$ 3.81
Income (loss) from discontinued operations, net of taxes (in dollars per share)	[2]	0	0.01	(0.01)	0.01
Net income (in dollars per share)	[2]	$ 0.50	$ 1.95	$ 1.56	$ 3.82
Adjusted weighted average common shares outstanding (in shares)		2,084.3	2,289.0	2,103.0	2,315.7

[1] In accordance with ASC 326.

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