v3.26.3
Allowance for Credit Losses (Detail) - USD ($)
$ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Dealer | Wholesale      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Beginning Balance $ 2.8    
Ending Balance 2.6   $ 2.8
Other      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Beginning Balance 2.9    
Ending Balance 3.8   2.9
Financial Services      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Beginning Balance 192.9 $ 145.2 145.2
Provision for losses 112.1 84.0  
Charge-offs (113.1) (66.3)  
Recoveries 6.7 6.2  
Currency translation and other 2.6 8.8  
Ending Balance 201.2 177.9 192.9
Financial Services | Dealer | Wholesale      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Beginning Balance 2.8 3.0 3.0
Provision for losses (0.3) (0.3)  
Currency translation and other 0.1 0.2  
Ending Balance 2.6 2.9 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 110.4 84.3  
Charge-offs (111.9) (65.7) (93.8)
Recoveries 6.6 5.8  
Currency translation and other 2.5 8.7  
Ending Balance 193.1 170.8 185.5
Financial Services | Other      
Financing Receivable, Allowance for Credit Losses [Line Items]      
Beginning Balance [1] 2.9 3.0 3.0
Provision for losses [1] 2.0 (0.1)  
Charge-offs [1] (1.2) (0.6)  
Recoveries [1] 0.1 0.4  
Currency translation and other [1]   (0.1)  
Ending Balance [1] $ 3.8 $ 2.6 $ 2.9
[1] Operating lease and other trade receivables.