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General Information - Additional Information (Detail)	Dec. 31, 2017 Employees Facility site Center
Disclosure of general information [abstract]
Number of production facilities | Facility	23
Number of administrative and commercial sites | site	10
Number of world-class technology centers | Center	2
Number of employees | Employees	12,000

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Disclosure of general information.

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Number of administrative and commercial sites.

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Number of production facilities.

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Number of world class technology center.

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The number of personnel employed by the entity at a date.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 112
-Subparagraph c
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-URIDate 2017-03-09

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