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Restructuring - Summary of Segment Location (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Restructuring Cost and Reserve
Restructuring costs and asset impairment charges	$ 24.0	$ 48.2	$ 107.7	$ 96.3
Operating segments | Seating
Restructuring Cost and Reserve
Restructuring costs and asset impairment charges	14.1	28.5	76.8	65.4
Operating segments | E-Systems
Restructuring Cost and Reserve
Restructuring costs and asset impairment charges	6.2	19.7	24.6	29.7
Other
Restructuring Cost and Reserve
Restructuring costs and asset impairment charges	$ 3.7	$ 0.0	$ 6.3	$ 1.2

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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation.

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