CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Citigroup’s net income		$ 4,547	$ 6,193	$ 8,853	$ 14,135
Add: Citigroup’s other comprehensive income
Net change in unrealized gains and losses on debt securities, net of taxes	[1]	(1,501)	(474)	(5,778)	(2,259)
Net change in debt valuation adjustment (DVA), net of taxes	[1],[2]	1,967	(62)	2,760	(104)
Net change in cash flow hedges, net of taxes	[1]	(666)	(173)	(2,207)	(729)
Benefit plans liability adjustment, net of taxes	[1]	(89)	87	82	801
Net change in foreign currency translation adjustment, net of taxes and hedges	[1]	(1,630)	523	(1,644)	(751)
Net change in excluded component of fair value hedges, net of taxes	[1]	9	(10)	57	(20)
Citigroup’s total other comprehensive income (loss)	[1]	(1,910)	(109)	(6,730)	(3,062)
Total Citigroup comprehensive income (loss)		2,637	6,084	2,123	11,073
Add: Other comprehensive income (loss) attributable to noncontrolling interests		(53)	18	(82)	(40)
Add: Net income (loss) attributable to noncontrolling interests		21	10	38	43
Total comprehensive income		$ 2,605	$ 6,112	$ 2,079	$ 11,076

[1] See Note 17.

[2] See Note 20.