Restructuring Reserve Narrative (Details) - USD ($) $ in Millions	6 Months Ended		30 Months Ended	42 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2026	Dec. 31, 2026
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 46.8	$ 6.3
Forecast [Member] \| Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost					$ 90.0
Forecast [Member] \| Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost					$ 120.0
Driveline [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	32.1	2.0
Metal Forming [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	9.2	3.4
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	11.3	1.4
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	35.5	$ 4.9
Dowlais Group plc
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	31.2
2024 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	8.6		$ 30.9
Tekfor Group
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 7.0			$ 48.6