Goodwill - Goodwill by Segment (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Goodwill, Beginning balance	$ 2,099	$ 1,923
Acquisitions	125	1
Assets held for sale	(157)
Foreign exchange and other	(88)	175
Goodwill, Ending balance	1,979	2,099
Body Exteriors & Structures [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	463	434
Acquisitions	16	(2)
Foreign exchange and other	(20)	31
Goodwill, Ending balance	459	463
Power & Vision [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	1,365	1,237
Acquisitions	109	3
Assets held for sale	(157)
Foreign exchange and other	(57)	125
Goodwill, Ending balance	1,260	1,365
Seating Systems [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	153	147
Foreign exchange and other	(6)	6
Goodwill, Ending balance	147	153
Complete Vehicles [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	118	105
Foreign exchange and other	(5)	13
Goodwill, Ending balance	$ 113	$ 118

Goodwill allocated to assets held for sale.

No definition available.

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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
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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits 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
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-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
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- Definition

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.

+ References

No definition available.

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the 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 805
-SubTopic 10
-Section 25
-Paragraph 16
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