Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Total revenue	$ 1,986	$ 1,997	$ 3,877	$ 3,863
Selling, general and administrative expenses	333	309	625	622
Research and development expenses	57	59	121	124
Total operating expenses	1,838	1,894	3,619	3,727
Income (loss) from operations	148	103	258	136
Interest expense	(91)	(67)	(174)	(130)
Other income (expense), net	(8)	1	(11)	10
Income (loss) from continuing operations before income taxes	49	37	73	16
Income tax expense (benefit)	30	0	44	13
Income (loss) from continuing operations	19	37	29	3
Income (loss) from discontinued operations, net of tax	(1)	6	(1)	5
Net income (loss)	18	43	28	8
Net income (loss) attributable to noncontrolling interests	(1)	2	0	1
Net income (loss) attributable to NCR	19	41	28	7
Amounts attributable to NCR common stockholders:
Income (loss) from continuing operations	20	35	29	2
Series A convertible preferred stock dividends	(4)	(4)	(8)	(8)
Income (loss) from continuing operations attributable to NCR common stockholders	16	31	21	(6)
Income (loss) from discontinued operations, net of tax	(1)	6	(1)	5
Net income (loss) attributable to NCR common stockholders	$ 15	$ 37	$ 20	$ (1)
Income (loss) per common share from continuing operations
Basic (in dollars per share)	$ 0.11	$ 0.23	$ 0.15	$ (0.04)
Diluted (in dollars per share)	0.11	0.22	0.15	(0.04)
Net income (loss) per common share
Basic (in dollars per share)	0.11	0.27	0.14	(0.01)
Diluted (in dollars per share)	$ 0.11	$ 0.26	$ 0.14	$ (0.01)
Weighted average common shares outstanding
Basic (in shares)	140.4	136.6	140.0	136.2
Diluted (in shares)	141.9	140.8	142.0	136.2
Product
Total revenue	$ 576	$ 614	$ 1,097	$ 1,130
Cost of revenue	478	544	934	1,036
Services
Total revenue	1,410	1,383	2,780	2,733
Cost of revenue	$ 970	$ 982	$ 1,939	$ 1,945