CONSOLIDATED STATEMENT OF CASH FLOWS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities of continuing operations
Net income before attribution of noncontrolling interests	$ 13,900	$ 7,760	$ 11,215
Net income attributable to noncontrolling interests	227	219	148
Citigroup's net income	13,673	7,541	11,067
Loss from discontinued operations, net of taxes	(90)	(57)	(27)
Gain (loss) on sale, net of taxes	360	(1)	95
Income from continuing operations-excluding noncontrolling interests	13,403	7,599	10,999
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	194	203	250
(Additions) reductions to deferred policy acquisition costs	(54)	85	(54)
Depreciation and amortization	3,303	2,507	2,872
Deferred tax provision (benefit)	2,380	(4,091)	(74)
Provision for credit losses	7,684	10,832	11,824
Realized gains from sales of investments	(748)	(3,251)	(1,997)
Net impairment losses recognized in earnings	535	4,971	2,254
Change in trading account assets	35,001	(29,195)	38,238
Change in trading account liabilities	(6,787)	(10,533)	(2,972)
Change in federal funds sold and securities borrowed or purchased under agreements to resell	4,274	14,538	(29,132)
Change in federal funds purchased and securities loaned or sold under agreements to repurchase	(7,724)	12,863	8,815
Change in brokerage receivables net of brokerage payables	(6,490)	945	8,383
Change in loans held-for-sale	4,321	(1,106)	1,021
Change in other assets	13,332	(530)	14,949
Change in other liabilities	(7,880)	(1,457)	(3,814)
Other, net	2,666	9,885	3,233
Total adjustments	44,007	6,666	53,796
Net cash provided by operating activities of continuing operations	57,410	14,265	64,795
Cash flows from investing activities of continuing operations
Change in deposits with banks	(66,871)	53,650	6,653
Change in loans	(27,892)	(28,817)	(31,597)
Proceeds from sales and securitizations of loans	9,123	7,287	10,022
Purchases of investments	(220,823)	(256,907)	(314,250)
Proceeds from sales of investments	131,100	143,853	182,566
Proceeds from maturities of investments	84,831	102,020	139,959
Capital expenditures on premises and equipment and capitalized software	(3,490)	(3,604)	(3,448)
Proceeds from sales of premises and equipment, subsidiaries and affiliates, and repossessed assets	716	1,089	1,323
Net cash provided by (used in) investing activities of continuing operations	(93,306)	18,571	(8,772)
Cash flows from financing activities of continuing operations
Dividends paid	(314)	(143)	(107)
Issuance of preferred stock	4,270	2,250
Redemption of preferred stock	(94)
Issuance of ADIA Upper DECs equity units purchase contract			3,750
Treasury stock acquired	(837)	(5)	(1)
Stock tendered for payment of withholding taxes	(452)	(194)	(230)
Issuance of long-term debt	54,405	27,843	30,242
Payments and redemptions of long-term debt	(63,994)	(117,575)	(89,091)
Change in deposits	37,713	64,624	23,858
Change in short-term borrowings	199	(2,164)	(25,067)
Net cash provided by (used in) financing activities of continuing operations	30,896	(25,364)	(56,646)
Effect of exchange rate changes on cash and cash equivalents	(1,558)	274	(1,301)
Discontinued operations
Net cash provided by discontinued operations	(10)	6	2,653
Change in cash and due from banks	(6,568)	7,752	729
Cash and due from banks at beginning of year	36,453	28,701	27,972
Cash and due from banks at end of year	29,885	36,453	28,701
Supplemental disclosure of cash flow information for continuing operations
Cash paid during the year for income taxes	4,495	3,900	2,705
Cash paid during the year for interest	14,383	19,739	21,230
Non-cash investing activities
Increase in corporate loans due to consolidation of a commercial paper conduit	6,718
Transfers to loans held-for-sale from loans	17,300	8,700	27,400
Transfers to OREO and other repossessed assets	325	500	1,284
Transfers to trading account assets from investments (held-to-maturity)			12,700
Non-cash financing activities
Increase in short-term borrowings due to consolidation of a commercial paper conduit	$ 6,718