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Segment Reporting - Narrative (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2022 USD ($)	Jul. 03, 2021 USD ($)	Jul. 02, 2022 USD ($) segment	Jul. 03, 2021 USD ($)
Segment Reporting Information
Reportable operating segments | segment			2
Restructuring charges			$ 71.7
Seating
Segment Reporting Information
Additional restructuring costs expected to occur	$ 27.0		27.0
E-Systems
Segment Reporting Information
Additional restructuring costs expected to occur	16.0		16.0
Operating segments | Seating
Segment Reporting Information
Restructuring charges	18.2	$ 7.2	34.8	$ 20.0
Operating segments | E-Systems
Segment Reporting Information
Restructuring charges	18.6	$ 3.7	31.9	8.4
Other
Segment Reporting Information
Restructuring charges	$ 5.0		$ 5.0	$ 4.2

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 45
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=109237686&loc=d3e17752-110868

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-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
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-URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747

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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

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-Name Accounting Standards Codification
-Topic 420
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-URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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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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