Stock Compensation - Stock-based Compensation Expense (Details) - NCR Atleos Operations - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit	$ (1)	$ (1)	$ (3)	$ (2)
Stock-based compensation expense (net of tax)	8	7	23	23
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units	$ 9	$ 8	$ 26	$ 25

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details