Number of deferred share unit plans.

No definition available.

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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

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 2018-01-01
-Paragraph 51
-Subparagraph b
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2018-03-01&anchor=para_51_b_ii&doctype=Standard
-URIDate 2018-03-16

+ Details

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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 2018-01-01
-Paragraph 51
-Subparagraph b
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2018-03-01&anchor=para_51_b_i&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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- Details

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- Details

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- Details

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Stock-Based Compensation Plans - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2019 CAD ($) Plan	Dec. 31, 2018 CAD ($)	Dec. 31, 2017
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Liabilities from share based payment	$ 60,000,000	$ 36,000,000
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	$ 2.93
TSARs [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Options expiration term	7 years
PSUs [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Vesting period			3 years
Liabilities from share based payment	$ 53,000,000	32,000,000
Intrinsic value of vested	$ 0	0
RSUs [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Vesting period	3 years
Liabilities from share based payment	$ 63,000,000	32,000,000
Intrinsic value of vested	0	0
DSUs [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Liabilities from share based payment	$ 16,000,000	$ 13,000,000
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 one year [Member] \| PSUs [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Percentage of units vesting		20.00%	30.00%
Later than two years [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Percentage of options exercisable	30.00%
Later than two years [Member] \| PSUs [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Percentage of units vesting		20.00%	30.00%
Later than three years [Member] \| PSUs [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Percentage of units vesting		20.00%	40.00%
Later than four years and not later than five years [Member] \| PSUs [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Percentage of units vesting		40.00%