Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

Revenue from Contracts with Customers Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Net sales	$ 1,536.2	$ 1,632.3	$ 2,947.5	$ 3,239.2
North America [Member]
Disaggregation of Revenue [Line Items]
Net sales	1,140.5	1,206.9	2,173.5	2,380.8
Asia [Member]
Disaggregation of Revenue [Line Items]
Net sales	145.6	149.1	286.7	299.8
Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales	200.1	233.6	395.2	479.4
South America [Member]
Disaggregation of Revenue [Line Items]
Net sales	50.0	42.7	92.1	79.2
Driveline [Member]
Disaggregation of Revenue [Line Items]
Net sales	1,081.3	1,124.3	2,038.5	2,230.7
Driveline [Member] \| North America [Member]
Disaggregation of Revenue [Line Items]
Net sales	822.7	849.2	1,537.2	1,677.2
Driveline [Member] \| Asia [Member]
Disaggregation of Revenue [Line Items]
Net sales	142.9	143.9	280.6	286.6
Driveline [Member] \| Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales	88.6	110.5	172.5	232.0
Driveline [Member] \| South America [Member]
Disaggregation of Revenue [Line Items]
Net sales	27.1	20.7	48.2	34.9
Metal Forming [Member]
Disaggregation of Revenue [Line Items]
Net sales	454.9	508.0	909.0	1,008.5
Metal Forming [Member] \| North America [Member]
Disaggregation of Revenue [Line Items]
Net sales	317.8	357.7	636.3	703.6
Metal Forming [Member] \| Asia [Member]
Disaggregation of Revenue [Line Items]
Net sales	2.7	5.2	6.1	13.2
Metal Forming [Member] \| Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales	111.5	123.1	222.7	247.4
Metal Forming [Member] \| South America [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 22.9	$ 22.0	$ 43.9	$ 44.3