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Goodwill - Summary of Changes in Carrying Amount of Goodwill (Details) $ in Millions | 6 Months Ended
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Jun. 29, 2019 USD ($)
Goodwill [Roll Forward] |  |
Balance at January 1, 2019 | $ 1,405.3 |
Acquisition | 197.5 |
Foreign currency translation and other | (2.6) |
Balance at June 29, 2019 | 1,600.2 | [1]
Seating |  |
Goodwill [Roll Forward] |  |
Balance at January 1, 2019 | 1,244.3 |
Acquisition | 0.0 |
Foreign currency translation and other | (2.4) |
Balance at June 29, 2019 | 1,241.9 |
E-Systems |  |
Goodwill [Roll Forward] |  |
Balance at January 1, 2019 | 161.0 |
Acquisition | 197.5 |
Foreign currency translation and other | (0.2) |
Balance at June 29, 2019 | $ 358.3 |
[1] | Unaudited.

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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