Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Total revenue	$ 2,017	$ 1,972	$ 5,894	$ 5,835
Selling, general and administrative expenses	331	264	956	886
Research and development expenses	54	40	175	164
Total operating expenses	1,775	1,785	5,394	5,512
Income (loss) from operations	242	187	500	323
Interest expense	(85)	(74)	(259)	(204)
Other income (expense), net	(44)	(1)	(55)	9
Income (loss) from continuing operations before income taxes	113	112	186	128
Income tax expense (benefit)	236	43	280	56
Income (loss) from continuing operations	(123)	69	(94)	72
Income (loss) from discontinued operations, net of tax	0	0	(1)	5
Net income (loss)	(123)	69	(95)	77
Net income (loss) attributable to noncontrolling interests	1	0	1	1
Net income (loss) attributable to NCR	(124)	69	(96)	76
Amounts attributable to NCR common stockholders:
Income (loss) from continuing operations	(124)	69	(95)	71
Series A convertible preferred stock dividends	(4)	(4)	(12)	(12)
Income (loss) from continuing operations attributable to NCR common stockholders	(128)	65	(107)	59
Income (loss) from discontinued operations, net of tax	0	0	(1)	5
Net income (loss) attributable to NCR common stockholders	$ (128)	$ 65	$ (108)	$ 64
Income (loss) per common share from continuing operations
Basic (in dollars per share)	$ (0.91)	$ 0.47	$ (0.76)	$ 0.43
Diluted (in dollars per share)	(0.91)	0.46	(0.76)	0.42
Net income (loss) per common share
Basic (in dollars per share)	(0.91)	0.47	(0.77)	0.47
Diluted (in dollars per share)	$ (0.91)	$ 0.46	$ (0.77)	$ 0.45
Weighted average common shares outstanding
Basic (in shares)	140.9	137.0	140.3	136.4
Diluted (in shares)	140.9	140.3	140.3	140.9
Product
Total revenue	$ 560	$ 590	$ 1,657	$ 1,720
Cost of revenue	465	524	1,399	1,560
Services
Total revenue	1,457	1,382	4,237	4,115
Cost of revenue	$ 925	$ 957	$ 2,864	$ 2,902