CONSOLIDATED STATEMENT OF EQUITY - USD ($) $ in Millions	Total	Total IBM Stockholders' Equity	Common Stock and Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income/(Loss)	Non- Controlling Interests
Balance at the beginning of the period at Dec. 31, 2022	$ 22,021	$ 21,944	$ 58,343	$ 149,825	$ (169,484)	$ (16,740)	$ 77
Net income plus other comprehensive income/(loss):
Net income	927	927		927
Other comprehensive income/(loss)	(40)	(40)				(40)
Total comprehensive income	888	888
Cash dividends paid - common stock	(1,497)	(1,497)		(1,497)
Common stock issued under employee plans	332	332	332
Purchases and sales of treasury stock under employee plans - net	(62)	(62)		(2)	(60)
Changes in noncontrolling interests	(9)						(9)
Balance at the end of the period at Mar. 31, 2023	21,672	21,604	58,675	149,253	(169,544)	(16,780)	68
Balance at the beginning of the period at Dec. 31, 2023	22,613	22,533	59,643	151,276	(169,624)	(18,761)	80
Net income plus other comprehensive income/(loss):
Net income	1,605	1,605		1,605
Other comprehensive income/(loss)	273	273				273
Total comprehensive income	1,878	1,878
Cash dividends paid - common stock	(1,522)	(1,522)		(1,522)
Common stock issued under employee plans	502	502	502
Purchases and sales of treasury stock under employee plans - net	(130)	(130)		4	(134)
Changes in noncontrolling interests	(8)						(8)
Balance at the end of the period at Mar. 31, 2024	$ 23,333	$ 23,261	$ 60,145	$ 151,362	$ (169,759)	$ (18,488)	$ 72