v3.26.1
Investments in Equity-Method Affiliates (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Schedule of Equity Method Investments [Line Items]          
Income from equity-method affiliates $ 17.4 $ 0.5 $ 27.7 $ 0.5  
Amortization of acquisition intangible asset attributable to SDS, net of tax (6.8)   (11.2)    
Equity Method Investments 889.9   889.9   $ 12.1
Shanghai GKN HUAYU Driveline Systems Co Limited (SDS)          
Schedule of Equity Method Investments [Line Items]          
Income from equity-method affiliates 22.0   35.8    
Amortization of acquisition intangible asset attributable to SDS, net of tax (6.8)   (11.2)    
Net share of income from SDS 15.2   24.6    
Equity Method Investments 848.8   848.8    
Proceeds from Equity Method Investment, Distribution $ 49.7   $ 49.7