CONSOLIDATED STATEMENT OF CASH FLOWS (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash flows from operating activities of continuing operations
Net income before attribution of noncontrolling interests	$ 3,057	$ 3,071
Net income attributable to noncontrolling interests	126	72
Citigroup's net income	2,931	2,999
Income (loss) from discontinued operations, net of taxes	(4)	36
Gain (loss) on sale, net of taxes	(1)	4
Income from continuing operations-excluding noncontrolling interests	2,936	2,959
Adjustments to reconcile net income to net cash provided by (used in) operating activities of continuing operations
Amortization of deferred policy acquisition costs and present value of future profits	47	62
(Additions)/reductions to deferred policy acquisition costs	139	(25)
Depreciation and amortization	738	671
Provision for credit losses	2,790	2,924
Realized gains from sales of investments	(1,925)	(580)
Net impairment losses recognized in earnings	1,305	1,707
Change in trading account assets	(15,316)	4,162
Change in trading account liabilities	9,874	17,292
Change in federal funds sold and securities borrowed or purchased under agreements to resell	(13,208)	(14,403)
Change in federal funds purchased and securities loaned or sold under agreements to repurchase	27,635	(1,733)
Change in brokerage receivables net of brokerage payables	(11,396)	(11,043)
Change in loans held-for-sale	3,861	(629)
Change in other assets	(2,196)	1,974
Change in other liabilities	71	(4,019)
Other, net	143	1,720
Total adjustments	2,562	(1,920)
Net cash provided by operating activities of continuing operations	5,498	1,039
Cash flows from investing activities of continuing operations
Change in deposits with banks	(28,165)	(1,166)
Change in loans	(3,858)	5,624
Proceeds from sales and securitizations of loans	1,043	1,824
Purchases of investments	(62,929)	(105,554)
Proceeds from sales of investments	31,006	35,185
Proceeds from maturities of investments	29,165	47,361
Capital expenditures on premises and equipment and capitalized software	(844)	(688)
Proceeds from sales of premises and equipment, subsidiaries and affiliates, and repossessed assets	163	422
Net cash used in investing activities of continuing operations	(34,419)	(16,992)
Cash flows from financing activities of continuing operations
Dividends paid	(34)	(4)
Issuance of ADIA Upper Decs equity units purchase contract		1,875
Treasury stock acquired	(4)
Stock tendered for payment of withholding taxes	(187)	(220)
Issuance of long-term debt	7,725	8,190
Payments and redemptions of long-term debt	(23,168)	(14,189)
Change in deposits	40,076	20,908
Change in short-term borrowings	1,920	(1,068)
Net cash provided by financing activities of continuing operations	26,328	15,492
Effect of exchange rate changes on cash and cash equivalents	397	331
Change in cash and due from banks	(2,196)	(130)
Cash and due from banks at beginning of period	28,701	27,972
Cash and due from banks at end of period	26,505	27,842
Supplemental disclosure of cash flow information for continuing operations
Cash paid/(received) during the year for income taxes	916	874
Cash paid during the year for interest	4,602	4,608
Non-cash investing activities
Transfers to OREO and other repossessed assets	137	432
Transfers to trading account assets from investments (available-for-sale)	0
Transfers to trading account assets from investments (held-to-maturity)		$ 12,700