v3.26.1
Basis of presentation (Details)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2027
USD ($)
Jun. 30, 2026
USD ($)
segment
$ / $
Jun. 30, 2025
USD ($)
$ / $
Dec. 31, 2025
USD ($)
$ / $
Dec. 31, 2024
$ / $
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Number of operating segments | segment   4      
Net monetary assets   $ 3,367.5   $ 3,329.0  
Cash and cash equivalents   1,658.2   1,725.9  
Goodwill   1,505.0   $ 1,515.3  
NCR Atleos          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Transaction costs   $ 29.2      
NCR Atleos | Forecast          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Estimated purchase price consideration $ 4,000.0        
Argentina, Pesos | Argentina          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Percent of consolidated revenue   3.00% 4.00%    
Rate change   (2.00%) (14.00%) (29.00%)  
Official exchange rate | $ / $   1,483 1,203.6 1,451.6 1,031
Currency remeasurement gain (loss)   $ (0.8) $ (14.1)    
Net monetary assets   30.7   $ 23.4  
Cash and cash equivalents   28.9   24.9  
Nonmonetary assets   133.5   140.7  
Goodwill   102.5   102.5  
Debt securities   $ 3.9   $ 7.7