Employee Benefit Plans (Details) $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($)
Total Pension Benefits | Foreign Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Plan assets contributions by employer	$ 3
Expected future benefit payment, remainder of fiscal year	9
Total estimated contributions by employer during fiscal year	$ 12
Total Pension Benefits | United States | NCR Atleos Corporation
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contributions required, percent of annual costs	50.00%
Contributions by spinoff, threshold	$ 40
Postemployment Retirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Plan assets contributions by employer	5
Expected future benefit payment, remainder of fiscal year	18
Total estimated contributions by employer during fiscal year	$ 13