Number of deferred share unit plans.

No definition available.

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- Definition

Number of other equity instruments early vesting.

+ References

No definition available.

+ Details

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- Definition

Number of share options vested and exercisable In share based payment arrangement.

+ References

No definition available.

+ Details

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- Definition

Percentage of bonus award conversion to deferred share units.

+ References

No definition available.

+ Details

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- Definition

Percentage of other equity instruments vesting in share based payment arrangement.

+ References

No definition available.

+ Details

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- Definition

Percentage of share options exercisable in share based payment arrangement.

+ References

No definition available.

+ Details

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- Definition

Share based payment arrangement vesting period.

+ References

No definition available.

+ Details

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- Definition

Term of share options in share based payment arrangement.

+ References

No definition available.

+ Details

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- Definition

Weighted average trading days.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

The intrinsic value of liabilities arising from share-based transactions for which the counterparty's right to cash or other assets had vested by the end of the period (for example, vested share appreciation rights). The intrinsic value is the difference between the fair value of the shares to which the counterparty has the (conditional or unconditional) right to subscribe, or which it has the right to receive, and the price (if any) that the counterparty is (or will be) required to pay for those shares. Share-based payment transactions are transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services, for which the counterparty's right to cash or other assets had vested by the end of the period (for example, vested share appreciation rights).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2020-01-01
-Paragraph 51
-Subparagraph b
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_51_b_ii&doctype=Standard
-URIDate 2020-01-01

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- Definition

The amount of liabilities arising from share-based payment transactions. Share-based payment transactions are transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services. [Refer: Share-based payment arrangements [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2020-01-01
-Paragraph 51
-Subparagraph b
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_51_b_i&doctype=Standard
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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 2020-01-01
-Paragraph 47
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_47_a&doctype=Standard
-URIDate 2020-01-01

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Stock-Based Compensation Plans - Additional Information (Detail) shares in Thousands		12 Months Ended
	Jan. 01, 2021 shares	Dec. 31, 2020 CAD ($) shares Plan	Dec. 31, 2019 CAD ($)
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Liabilities from share based payment		$ 130,000,000	$ 60,000,000
NSRs [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Options expiration term		7 years
Weighted average unit fair value of granted		$ 2.27
NSRs [Member] \| Events After Reporting [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Additional NSR vested and exercisable \| shares	2,738
PSUs [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Vesting period		3 years
Liabilities from share based payment		$ 65,000,000	53,000,000
Number of shares vested \| shares		7,055
Weighted average trading days		30 days
Intrinsic value of vested		$ 51,000,000	0
PSUs [Member] \| Bottom of Range [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Percentage of units vesting		0.00%
PSUs [Member] \| Top of Range [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Percentage of units vesting		200.00%
RSUs [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Vesting period		3 years
Liabilities from share based payment		$ 61,000,000	63,000,000
Number of shares vested \| shares		8,237
Weighted average trading days		30 days
Intrinsic value of vested		$ 60,000,000	0
DSUs [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Liabilities from share based payment		$ 10,000,000	$ 16,000,000
Number of Deferred Share Unit Plans \| Plan		2
DSUs Option One [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Percentage of annual bonus award to convert into DSUs		0.00%
DSUs Option Two [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Percentage of annual bonus award to convert into DSUs		25.00%
DSUs Option Three [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Percentage of annual bonus award to convert into DSUs		50.00%
Later than one year [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Percentage of options exercisable		30.00%
Later than two years and not later than three years [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Percentage of options exercisable		30.00%