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v3.20.1

Segment Reporting - Narrative (Details) $ in Millions | 3 Months Ended
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Apr. 04, 2020 USD ($) segment | Mar. 30, 2019 USD ($)
Segment Reporting Information [Line Items] |  |
Reportable operating segments | segment | 2 |
Restructuring charges | $ 32.6 |
Seating |  |
Segment Reporting Information [Line Items] |  |
Additional restructuring costs expected to occur | 19.0 |
E-Systems |  |
Segment Reporting Information [Line Items] |  |
Additional restructuring costs expected to occur | 27.0 |
Operating segments | Seating |  |
Segment Reporting Information [Line Items] |  |
Restructuring charges | 12.3 | $ 45.2
Operating segments | E-Systems |  |
Segment Reporting Information [Line Items] |  |
Restructuring charges | $ 20.3 | 8.9
Other |  |
Segment Reporting Information [Line Items] |  |
Restructuring charges |  | $ 0.2

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