v3.26.1
Revenue from Contracts with Customers Disaggregation of Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Net sales $ 2,955.6 $ 1,536.2 $ 5,334.5 $ 2,947.5
North America [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 1,781.3 1,140.5 3,228.3 2,173.5
Asia [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 304.3 145.6 559.2 286.7
Europe [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 742.0 200.1 1,330.2 395.2
South America [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 128.0 50.0 216.8 92.1
Driveline [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 2,221.6 1,105.4 3,987.2 2,090.6
Driveline [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 1,368.8 846.8 2,467.5 1,589.3
Driveline [Member] | Asia [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 256.4 142.9 479.9 280.6
Driveline [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 496.7 88.6 876.1 172.5
Driveline [Member] | South America [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 99.7 27.1 163.7 48.2
Metal Forming [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 734.0 430.8 1,347.3 856.9
Metal Forming [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 412.5 293.7 760.8 584.2
Metal Forming [Member] | Asia [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 47.9 2.7 79.3 6.1
Metal Forming [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Net sales 245.3 111.5 454.1 222.7
Metal Forming [Member] | South America [Member]        
Disaggregation of Revenue [Line Items]        
Net sales $ 28.3 $ 22.9 $ 53.1 $ 43.9