Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details) $ in Millions			3 Months Ended			9 Months Ended
	Oct. 19, 2023 USD ($)	Oct. 02, 2023	Sep. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Oct. 16, 2023 company	Dec. 31, 2022 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Cyber ransomware incident recovery costs			$ 12		$ 0	$ 23	$ 0
Compensation expense				$ 10
Revenue recognized that was included in contract liabilities						437	$ 365
Remaining performance obligations			3,600			3,600
Capitalized software development costs for software sold to customers			$ 572			572			$ 554
Subsequent Event
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Number of independent companies in business separation | company								2
NCR Atleos Corporation | Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff | Subsequent Event
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Conversion ratio		0.50
Payments Business
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue of business segment sold						$ 33
Payments Business | Subsequent Event
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Proceeds from divestiture of businesses	$ 82
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected timing of satisfaction			12 months			12 months
Remaining performance obligation, percentage			0.75%			0.75%