XML 74 R56.htm IDEA: XBRL DOCUMENT v3.19.3

Goodwill - Summary of Changes in Carrying Amount of Goodwill (Details) $ in Millions	9 Months Ended
	Sep. 28, 2019 USD ($)
Goodwill [Roll Forward]
Balance at January 1, 2019	$ 1,405.3
Acquisition	219.6
Foreign currency translation and other	(24.5)
Balance at September 28, 2019	1,600.4	[1]
Seating
Goodwill [Roll Forward]
Balance at January 1, 2019	1,244.3
Acquisition	0.0
Foreign currency translation and other	(20.9)
Balance at September 28, 2019	1,223.4
E-Systems
Goodwill [Roll Forward]
Balance at January 1, 2019	161.0
Acquisition	219.6
Foreign currency translation and other	(3.6)
Balance at September 28, 2019	$ 377.0
[1] Unaudited.

X

- Definition

Goodwill Translation Adjustments and Other Changes

+ References

No definition available.

+ Details

Name:	lear_GoodwillTranslationAdjustmentsAndOtherChanges
Namespace Prefix:	lear_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- 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

Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- 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

Name:	us-gaap_GoodwillAcquiredDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- 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

Name:	us-gaap_GoodwillRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lear_SeatingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lear_ESystemsSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: