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v3.21.1

Segment Reporting - Narrative (Details) $ in Millions | 3 Months Ended
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Apr. 03, 2021 USD ($) segment | Apr. 04, 2020 USD ($)
Segment Reporting Information [Line Items] |  |
Reportable operating segments | segment | 2 |
Restructuring charges | $ 21.7 |
Seating |  |
Segment Reporting Information [Line Items] |  |
Additional restructuring costs expected to occur | 24.0 |
E-Systems |  |
Segment Reporting Information [Line Items] |  |
Additional restructuring costs expected to occur | 15.0 |
Operating segments | Seating |  |
Segment Reporting Information [Line Items] |  |
Restructuring charges | 12.8 | $ 12.3
Operating segments | E-Systems |  |
Segment Reporting Information [Line Items] |  |
Restructuring charges | 4.7 | $ 20.3
Other |  |
Segment Reporting Information [Line Items] |  |
Restructuring charges | $ 4.2 |

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