Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Total Stockholders Equity	Common Stock	Paid-in Capital	Retained Earnings (Deficit)	Accumulated Other Comprehensive (Loss) Income	Noncontrolling Interests in Subsidiaries
Balance at beginning of period (in shares) at Dec. 31, 2021			132.0
Balance at beginning of period at Dec. 31, 2021		$ 1,259	$ 1	$ 515	$ 1,031	$ (291)	$ 3
Comprehensive income (loss):
Net income (loss)		59			60		(1)
Other comprehensive income (loss)	$ (12)	(12)				(9)	(3)
Total comprehensive income (loss)	47	47			60	(9)	(4)
Employee stock purchase and stock compensation plans (in shares)			5.0
Employee stock purchase and stock compensation plans		121		121
Stock issued in acquisition of LibertyX (in shares)			1.0
Stock issued in acquisition of LibertyX		68		68
Series A convertible preferred stock dividends		(16)			(16)
Balance at end of period (in shares) at Dec. 31, 2022			138.0
Balance at end of period at Dec. 31, 2022		1,479	$ 1	704	1,075	(300)	(1)
Comprehensive income (loss):
Net income (loss)		(423)			(423)
Other comprehensive income (loss)	53	53				53
Total comprehensive income (loss)	(370)	(370)			(423)	53
Employee stock purchase and stock compensation plans (in shares)			5.0
Employee stock purchase and stock compensation plans		170		170
Series A convertible preferred stock dividends		(16)			(16)
Spin-Off of NCR Atleos	$ (1,238)				(1,057)	(182)	1
Balance at end of period (in shares) at Dec. 31, 2023	142.6		143.0
Balance at end of period at Dec. 31, 2023	$ 25	25	$ 1	874	(421)	(429)	0
Comprehensive income (loss):
Net income (loss)		957			958		(1)
Other comprehensive income (loss)	(51)	(51)				(50)	(1)
Total comprehensive income (loss)	906	906			958	(50)	(2)
Employee stock purchase and stock compensation plans (in shares)			3.0
Employee stock purchase and stock compensation plans		48		48
Series A convertible preferred stock dividends		(15)			(15)
Spin-Off of NCR Atleos	23				13	10
Repurchase of Company common stock (in shares)			(4.0)
Repurchase of Company common stock	$ (56)			(56)
Balance at end of period (in shares) at Dec. 31, 2024	142.1		142.0
Balance at end of period at Dec. 31, 2024	$ 931	$ 931	$ 1	$ 866	$ 535	$ (469)	$ (2)