CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) (USD $) In Millions, unless otherwise specified		Total		Citigroup stockholders' equity	Preferred stock at aggregate liquidation value	Citigroup common stockholders' equity	Common stock and additional paid-in capital	Retained earnings	Treasury stock, at cost	Citigroup's accumulated other comprehensive income (loss)	Noncontrolling interests
Balance, beginning of year at Dec. 31, 2012					$ 2,562		$ 106,421		$ (847)	$ (16,896)	$ 1,948
Increase (Decrease) in Stockholders' Equity
Net Income including portion attributable to noncontrolling interest		11,394						11,217			177
Net change in Accumulated other comprehensive income (loss)										(1,902)	(44)
Issuance of new preferred stock					2,775
Redemption of preferred stock					(94)
Employee benefit plans							684
Preferred stock issuance expense							(44)
Common dividends	[1]							(91)
Preferred dividends		(123)	[2]					(123)
Employee benefit plans	[3]								(6)
Treasury stock acquired	[4]								(619)
Initial origination of a noncontrolling interest											6
Transactions between noncontrolling-interest shareholders and the related consolidated subsidiary											(2)
Transactions between Citigroup and the noncontrolling-interest shareholders											23
Dividends paid to noncontrolling-interest shareholders											(63)
Other							0	0			(152)
Net change in noncontrolling interests											(55)
Balance, end of period at Sep. 30, 2013		202,739		200,846	5,243	195,603	107,061	108,812	(1,472)	(18,798)	1,893
Balance, beginning of year at Jun. 30, 2013
Increase (Decrease) in Stockholders' Equity
Net Income including portion attributable to noncontrolling interest		3,278
Net change in Accumulated other comprehensive income (loss)										1,126
Preferred dividends	[2]	(110)
Balance, end of period at Sep. 30, 2013		202,739		200,846		195,603				(18,798)
Balance, beginning of year at Dec. 31, 2013		206,133			6,738		107,224		(1,658)	(19,133)	1,794
Increase (Decrease) in Stockholders' Equity
Net Income including portion attributable to noncontrolling interest		7,117						6,963			154
Net change in Accumulated other comprehensive income (loss)										(843)	(57)
Issuance of new preferred stock					2,230
Redemption of preferred stock					0
Employee benefit plans							656
Preferred stock issuance expense							(24)
Common dividends	[1]							(91)
Preferred dividends		(352)	[2]					(352)
Employee benefit plans	[3]								(121)
Treasury stock acquired	[4]								(852)
Initial origination of a noncontrolling interest											0
Transactions between noncontrolling-interest shareholders and the related consolidated subsidiary											0
Transactions between Citigroup and the noncontrolling-interest shareholders											(80)
Dividends paid to noncontrolling-interest shareholders											(91)
Other							14	353			(101)
Net change in noncontrolling interests											(175)
Balance, end of period at Sep. 30, 2014		213,891		212,272	8,968	203,304	107,870	118,041	(2,631)	(19,976)	1,619
Balance, beginning of year at Jun. 30, 2014
Increase (Decrease) in Stockholders' Equity
Net Income including portion attributable to noncontrolling interest		2,898
Net change in Accumulated other comprehensive income (loss)										(1,829)
Preferred dividends	[2]	(128)
Balance, end of period at Sep. 30, 2014		$ 213,891		$ 212,272		$ 203,304				$ (19,976)

[1] Common dividends declared were $0.01 per share in the first, second and third quarters of 2014 and 2013.

[2] See Note 19 to the Consolidated Financial Statements for the potential future impact of preferred stock dividends.

[3] Includes treasury stock related to (i) certain activity on employee stock option program exercises where the employee delivers existing shares to cover the option exercise, or (ii) under Citi’s employee restricted or deferred stock programs where shares are withheld to satisfy tax requirements.

[4] For the nine months ended September 30, 2014, primarily consists of open market purchases under Citi’s Board of Directors-approved common stock repurchase program.