Segment Information and Concentrations - Net Income Reconciled to Adjusted EBITDA (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Corporate and other income and expenses not allocated to reportable segments	$ 49	$ 78
Depreciation and amortization	50	48
Acquisition-related amortization of intangibles	6	7
Interest expense	15	39
Interest income	(6)	(2)
Income tax expense (benefit)	(7)	(5)
Stock-based compensation expense	9	11
Transformation and restructuring costs	21	24
Separation costs	0	5
Loss (gain) on disposal of businesses	0	(7)
Foreign currency devaluation	0	15
Fraudulent ACH disbursements	0	(1)
Strategic initiatives	7	0
Net income (loss) from continuing operations attributable to NCR Voyix	(20)	(71)
Operating Segments
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	$ 124	$ 141