v3.26.1
Allowance for Credit Losses (Detail) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dealer | Wholesale      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Beginning Balance $ 2.8    
Ending Balance 2.8   $ 2.8
Other      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Beginning Balance 2.9    
Ending Balance 3.0   2.9
Financial Services      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Beginning Balance 192.9 $ 145.2 145.2
Provision for losses 83.5 47.5  
Charge-offs (92.8) (50.3)  
Recoveries 4.8 4.4  
Currency translation and other 3.3 7.4  
Ending Balance 191.7 154.2 192.9
Financial Services | Dealer | Wholesale      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Beginning Balance 2.8 3.0 3.0
Provision for losses   (0.1)  
Currency translation and other   0.2  
Ending Balance 2.8 3.1 2.8
Financial Services | Dealer | Retail      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Beginning Balance 1.7 1.5 1.5
Provision for losses   0.1  
Ending Balance 1.7 1.6 1.7
Financial Services | Customer Retail      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Beginning Balance 185.5 137.7 137.7
Provision for losses 82.8 47.6  
Charge-offs (91.9) (49.9) (93.8)
Recoveries 4.6 4.2  
Currency translation and other 3.2 7.4  
Ending Balance 184.2 147.0 185.5
Financial Services | Other      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Beginning Balance [1] 2.9 3.0 3.0
Provision for losses [1] 0.7 (0.1)  
Charge-offs [1] (0.9) (0.4)  
Recoveries [1] 0.2 0.2  
Currency translation and other [1] 0.1 (0.2)  
Ending Balance [1] $ 3.0 $ 2.5 $ 2.9
[1] Operating lease and other trade receivables.