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Share-Based Payments - Performance Related Incentive Plan For Disruptive Growth Function - Additional Information (Detail) - Performance Share Unit [member] Unit_pure in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share based arrangement vesting requirements	These units vest after 5 years provided that a performance test is met
Senior Management [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share-based compensation number of shares issued	1.0	1.2

X

- Definition

The description of the vesting requirements for a type of share-based payment arrangement that existed at any time during the period. An entity with substantially similar types of share-based payment arrangements may aggregate this information. [Refer: Share-based payment arrangements [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Number 2
-IssueDate 2021-01-01
-Paragraph 45
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-URIDate 2021-03-24

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- Definition

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

+ References

No definition available.

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- Definition

The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2021-01-01
-Paragraph 47
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2021-03-24

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-Name IFRS
-Number 2
-IssueDate 2021-01-01
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-URIDate 2021-03-24

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