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Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Ownership Target, Period

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Ratio Employer Match Per Dollar Contributed

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Trading Days Used to Calculate Average Share Price

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No definition available.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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This item represents the amount of cash contributions during the period made by the entity to the Employee Stock Ownership Plan (ESOP).

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

Amount of cash paid to settle liability for award under share-based payment arrangement.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

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

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No definition available.

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- Definition

The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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- Definition

Number of shares purchased for issuance under share-based payment arrangement.

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Percentage of vesting of award under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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- Definition

Value, before forfeiture, of shares granted under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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No definition available.

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Stock-based compensation - Narrative (Details) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2022 CAD ($) shares	Dec. 31, 2022 CAD ($) shares	Dec. 31, 2021 CAD ($) shares	Dec. 31, 2020 CAD ($) shares	Dec. 31, 2019 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 113.0	$ 131.0	$ 170.0
Stock based compensation expense, tax benefit		26.0	29.0	42.0
Share-based liabilities paid		137.0	126.0	86.0
Regular and Performance Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 23.0	23.0	16.0
Expiration period		7 years
Fair value of options at grant date		$ 16.0	26.0	15.0
Unrecognized compensation expense		$ 17.0
Weighted-average period of recognition for unrecognized compensation		10 months 24 days
Fair value of shares vested for stock option plan		$ 24.0	$ 18.0	$ 10.0
Regular and Performance Stock Options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		12 months
Regular and Performance Stock Options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		48 months
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units issued (in shares) \| shares		415,660	431,430	489,990
Grant date fair value		$ 38.0
Share-based liabilities paid		$ 116.0	$ 119.0	$ 76.0
Performance Deferred Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units issued (in shares) \| shares		13,506	12,694	50,145
Grant date fair value		$ 1.0
Matching % of DSU's granted to senior managers		25.00%
PSUs and PDSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 69.0	$ 91.0	$ 121.0
Vesting period		3 years
Unrecognized compensation expense		$ 32.0
Weighted-average period of recognition for unrecognized compensation		1 year 7 months 6 days
Units issued (in shares) \| shares		429,166	444,124
DSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 10.0	$ 6.0	21.0
Vesting period		36 months
Unrecognized compensation expense		$ 1.0
Weighted-average period of recognition for unrecognized compensation		1 year 8 months 12 days
Units issued (in shares) \| shares		60,262	70,112
Grant date fair value		$ 6.0
Matching % of DSU's granted to senior managers		25.00%
Number of trading days		10 days
Share-based liabilities paid		$ 16.0	$ 1.0	9.0
Ownership target period		5 years
Employee Share Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 9.0	$ 8.0	$ 7.0
Vesting period		1 year
Employer matching ratio per dollar contributed		0.3333
Maximum percentage of annual salary that an employee can contribute		6.00%
Number of shares purchased on behalf of participants \| shares		566,902	538,022	576,720
Employer contributions		$ 11.0	$ 11.0	$ 9.0
Share-based Payment Arrangement, Tranche One \| PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units issued (in shares) \| shares	631,457				668,405
Payout percentage		180.00%	200.00%
PSUs vested in period (in shares) \| shares		459,358
Fair value of PSUs vested in period		$ 87.0
Number of trading days		30 days	30 days
Share-based liabilities paid	$ 116.0
Share-based Payment Arrangement, Tranche One \| Performance Deferred Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PSUs vested in period (in shares) \| shares		45,058
Fair value of PSUs vested in period		$ 11.0