v3.25.2
Pre-Tax Effects of (Loss) Gain on Cash Flow Hedges Recognized in OCI (Detail) - Derivative Contracts - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Interest-Rate Contracts        
Derivative [Line Items]        
(Loss) gain recognized in OCI $ (124.1) $ 56.9 $ (196.1) $ 81.6
Foreign-exchange contracts        
Derivative [Line Items]        
(Loss) gain recognized in OCI (36.9) 35.9 (57.3) 52.1
Commodity contracts        
Derivative [Line Items]        
(Loss) gain recognized in OCI 1.6 (8.4) 1.4 (13.0)
Truck, Parts and Other | Foreign-exchange contracts        
Derivative [Line Items]        
(Loss) gain recognized in OCI (31.2) 33.5 (42.5) 47.0
Truck, Parts and Other | Commodity contracts        
Derivative [Line Items]        
(Loss) gain recognized in OCI 1.6 (8.4) 1.4 (13.0)
Financial Services | Interest-Rate Contracts        
Derivative [Line Items]        
(Loss) gain recognized in OCI (124.1) 56.9 (196.1) 81.6
Financial Services | Foreign-exchange contracts        
Derivative [Line Items]        
(Loss) gain recognized in OCI $ (5.7) $ 2.4 $ (14.8) $ 5.1