CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (USD $) In Millions, unless otherwise specified	Total	Total IBM Stockholders' Equity	Common Stock and Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income/(Loss)	Non-Controlling Interests
Equity - at Dec. 31, 2012	$ 18,984	$ 18,860	$ 50,110	$ 117,641	$ (123,131)	$ (25,759)	$ 124
Net income plus other comprehensive income/(loss)
Net income	3,032	3,032		3,032
Other comprehensive income/(loss)	293	293				293
Total comprehensive income/(loss)	3,325	3,325
Cash dividends paid - common stock	(948)	(948)		(948)
Common stock issued under employee plan (Shares - 3,105,227 and 3,726,163 for the three months ended March 31,2014 and 2013, respectively)	361	361	361
Purchases ( (Shares - 488,203 and 629,550) and sales ( Shares - 328,673 and 648,990) of the treasury stock under employee plans - net, for the three months ended March 31, 2014 and 2013, respectively)	(65)	(65)		(12)	(53)
Other treasury shares purchased, not retire (Shares - 45,153,202 and 12,318,883 for the three months ended March 31, 2014 and 2013, respectively)	(2,493)	(2,493)			(2,493)
Changes in other equity	52	52	52
Changes in noncontrolling interests	(1)						(1)
Equity - at Mar. 31, 2013	19,214	19,092	50,522	119,713	(125,677)	(25,466)	122
Equity - at Dec. 31, 2013	22,929	22,792	51,594	130,042	(137,242)	(21,602)	137
Net income plus other comprehensive income/(loss)
Net income	2,384	2,384		2,384
Other comprehensive income/(loss)	446	446				446
Total comprehensive income/(loss)	2,830	2,830
Cash dividends paid - common stock	(990)	(990)		(990)
Common stock issued under employee plan (Shares - 3,105,227 and 3,726,163 for the three months ended March 31,2014 and 2013, respectively)	333	333	333
Purchases ( (Shares - 488,203 and 629,550) and sales ( Shares - 328,673 and 648,990) of the treasury stock under employee plans - net, for the three months ended March 31, 2014 and 2013, respectively)	(51)	(51)		(5)	(46)
Other treasury shares purchased, not retire (Shares - 45,153,202 and 12,318,883 for the three months ended March 31, 2014 and 2013, respectively)	(8,324)	(8,324)			(8,324)
Changes in other equity	16	16	16
Changes in noncontrolling interests	(4)						(4)
Equity - at Mar. 31, 2014	$ 16,740	$ 16,607	$ 51,943	$ 131,431	$ (145,612)	$ (21,156)	$ 133