CONSOLIDATED STATEMENT OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023		Sep. 30, 2022
Revenues
Interest revenue		$ 34,837	$ 19,919	$ 96,879		$ 48,700
Interest expense		21,009	7,356	55,803		13,302
Net interest income		13,828	12,563	41,076		35,398
Commissions and fees		2,195	2,139	6,693		7,159
Principal transactions		3,008	2,625	9,475		11,740
Administration and other fiduciary fees		971	915	2,856		2,904
Realized gains on sales of investments, net		30	52	151		74
Impairment losses on investments:
Impairment losses on investments and other assets		(70)	(91)	(227)		(277)
(Provision) releases for credit losses on AFS debt securities	[1]	(1)	5	(1)		7
Net impairment losses recognized in earnings		(71)	(86)	(228)		(270)
Other revenue		178	300	999		327
Total non-interest revenues		6,311	5,945	19,946		21,934
Total revenues, net of interest expense		20,139	18,508	61,022		57,332
Provisions for credit losses and for benefits and claims
Provision for credit losses on loans		1,816	1,328	5,314		2,972
Provision (release) for credit losses on HTM debt securities		(3)	10	(24)		28
Provision for credit losses on other assets		56	73	630		76
Policyholder benefits and claims		25	25	63		74
Provision (release) for credit losses on unfunded lending commitments		(54)	(71)	(344)		244
Total provisions for credit losses and for benefits and claims	[2]	1,840	1,365	5,639	[3]	3,394	[3]
Operating expenses
Compensation and benefits		7,424	6,745	22,350		20,037
Premises and equipment		620	557	1,813		1,719
Technology/communication		2,256	2,145	6,692		6,229
Advertising and marketing		324	407	1,016		1,132
Other operating		2,887	2,895	8,499		9,190
Total operating expenses		13,511	12,749	40,370		38,307
Income from continuing operations before income taxes		4,788	4,394	15,013		15,631
Provision for income taxes		1,203	879	3,824		3,002
Income from continuing operations		3,585	3,515	11,189		12,629
Discontinued operations
Income (loss) from discontinued operations		2	(6)	0		(270)
Benefit for income taxes		0	0	0		(41)
Income (loss) from discontinued operations, net of taxes		2	(6)	0		(229)
Net income before attribution to noncontrolling interests		3,587	3,509	11,189		12,400
Noncontrolling interests		41	30	122		68
Citigroup’s net income		$ 3,546	$ 3,479	$ 11,067		$ 12,332
Basic earnings per share
Income from continuing operations (in dollars per share)	[4]	$ 1.64	$ 1.64	$ 5.19		$ 5.99
Income from discontinued operations, net of taxes (in dollars per share)	[4]	0	0	0		(0.12)
Net income (in dollars per share)	[4]	$ 1.64	$ 1.64	$ 5.19		$ 5.87
Weighted average common shares outstanding (in shares)		1,924.4	1,936.8	1,936.9		1,950.0
Diluted earnings per share
Income from continuing operations (in dollars per share)	[4]	$ 1.63	$ 1.63	$ 5.14		$ 5.95
Income (loss) from discontinued operations, net of taxes (in dollars per share)	[4]	0	0	0		(0.12)
Net income (in dollars per share)	[4]	$ 1.63	$ 1.63	$ 5.14		$ 5.84
Adjusted weighted average diluted common shares outstanding (in shares)		1,951.7	1,955.1	1,961.5		1,967.1

[1] In accordance with ASC 326, which requires the provision for credit losses on AFS securities to be included in revenue.

[2] This total excludes the provision for credit losses on AFS securities, which is disclosed separately above.

[3] 2022 amounts have been revised to conform to the current-period presentation.

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