CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities of continuing operations
Net income before attribution of noncontrolling interests		$ 18,846	$ 6,756
Net income attributable to noncontrolling interests		67	18
Citigroup’s net income		18,779	6,738
Income (loss) from discontinued operations, net of taxes		7	(26)
Income from continuing operations—excluding noncontrolling interests		18,772	6,764
Adjustments to reconcile net income to net cash provided by (used in) operating activities of continuing operations
Net loss on significant disposal	[1]	680	0
Depreciation and amortization		2,979	2,886
Provisions for credit losses on loans and unfunded lending commitments		(3,388)	17,392
Realized gains from sales of investments		(655)	(1,484)
Impairment losses on investments and other assets		112	154
Change in trading account assets		32,111	(72,115)
Change in trading account liabilities		11,259	27,096
Change in brokerage receivables net of brokerage payables		(4,664)	(6,026)
Change in loans HFS		(3,068)	1,288
Change in other assets		(1,781)	(28)
Change in other liabilities		8,989	(1,070)
Other, net		(2,161)	2,889
Total adjustments		40,413	(29,018)
Net cash provided by (used in) operating activities of continuing operations		59,185	(22,254)
Cash flows from investing activities of continuing operations
Change in securities borrowed and purchased under agreements to resell		(42,984)	(38,036)
Change in loans		6,613	23,488
Proceeds from sales and securitizations of loans		1,134	924
Purchases of investments		(277,874)	(276,084)
Proceeds from sales of investments		96,203	130,237
Proceeds from maturities of investments		107,361	78,476
Capital expenditures on premises and equipment and capitalized software		(2,811)	(2,300)
Proceeds from sales of premises and equipment, subsidiaries and affiliates and repossessed assets		143	25
Other, net		146	70
Net cash used in investing activities of continuing operations		(112,069)	(83,200)
Cash flows from financing activities of continuing operations
Dividends paid		(3,959)	(4,024)
Issuance of preferred stock		2,300	1,500
Redemption of preferred stock		(3,785)	(1,500)
Treasury stock acquired		(7,448)	(2,925)
Stock tendered for payment of withholding taxes		(328)	(408)
Change in securities loaned and sold under agreements to repurchase		9,659	40,888
Issuance of long-term debt		53,961	65,599
Payments and redemptions of long-term debt		(56,472)	(47,521)
Change in deposits		73,769	192,033
Change in short-term borrowings		169	(7,610)
Net cash provided by financing activities of continuing operations		67,866	236,032
Effect of exchange rate changes on cash and due from banks		(789)	(802)
Change in cash, due from banks and deposits with banks		14,193	129,776
Cash, due from banks and deposits with banks at beginning of period		309,615	193,919
Cash, due from banks and deposits with banks at end of period		323,808	323,695
Cash and due from banks (including segregated cash and other deposits)		28,906	25,308
Deposits with banks, net of allowance		294,902	298,387
Cash, due from banks and deposits with banks at end of period		323,808	323,695
Supplemental disclosure of cash flow information for continuing operations
Cash paid during the period for income taxes		3,063	3,837
Cash paid during the period for interest		6,894	11,502
Non-cash investing and financing activities
Decrease in net loans associated with significant disposals reclassified to HFS	[1],[2]	8,291	0
Transfers to loans HFS (Other assets) from loans	[1],[2]	5,329	2,122
Decrease in long-term debt associated with significant disposals reclassified to HFS	[1]	521	0
Decrease in deposits associated with significant disposals reclassified to HFS	[1]	$ 6,912	$ 0

[1] See Note 2 for further information on significant disposals.

[2] Operating and finance lease right-of-use assets and lease liabilities represent non-cash investing and financing activities, respectively, and are not included in the non-cash investing activities presented here. See Note 22 to the Consolidated Financial Statements for more information and balances as of September 30, 2021.