Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

No definition available.

+ Details

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- Definition

The number of share options granted in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2018-01-01
-Paragraph 45
-Subparagraph b
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2018-03-01&anchor=para_45_b_ii&doctype=Standard
-URIDate 2018-03-16

+ Details

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- Definition

The weighted average fair value of share options granted during the period at the measurement date. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2018-01-01
-Paragraph 47
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2018-03-01&anchor=para_47_a&doctype=Standard
-URIDate 2018-03-16

+ Details

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- Details

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- Details

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- Details

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Share-Based Payments - LTI Stock Option Plan Executives - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options granted	1,251,602
Fair value of stock options granted	$ 16.92	$ 19.94	$ 17.40
Long Term Incentive Stock Option Plan [member] \| Executives [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options granted	7,200,000	7,800,000
Fair value of stock options granted	$ 102,000,000	$ 149,000,000
Long Term Incentive Stock Option Plan [member] \| Executives [member] \| American Depositary Shares [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options granted		1,400,000
Long Term Incentive Stock Option Plan [member] \| Executives [member] \| Ordinary shares [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options granted		6,400,000