Common Shares, Conversion Basis, Subject To Shareholder Approval

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- Definition

Normal Course Issuer Bid, Percent Of Issued And Outstanding Shares

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- Definition

Number Of Shares Authorised In Share Based Payment Arrangement As A Percentage Of Common Shares Outstanding

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- Definition

Percentage Of Dividend Increased From Previous Quarterly Dividend

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award Expiration Period1

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- Definition

Share-Based Compensation Arrangement by Share-based Payment Award, Award Vesting Period2

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- Definition

Stock Purchase Program, Term

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- Definition

Stock Repurchase Program, Number Of Shares Authorized To Be Repurchased1

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- Definition

Stock Repurchased And Retired During Period, Shares 1

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- Definition

Stock Repurchased And Retired During Period, Value 1

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- Definition

Stock Repurchased During Period, Weighted Average Price Per Share

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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.

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- Definition

The amount of dividends paid per ordinary share.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount, per share, of dividends recognised as distributions to owners.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Share Capital - Narrative (Details) - CAD ($) $ / shares in Units, $ in Millions								2 Months Ended	12 Months Ended
	Feb. 28, 2024	Nov. 01, 2023	Mar. 01, 2023	Nov. 02, 2022	Aug. 03, 2022	Mar. 02, 2022	Mar. 01, 2022	Feb. 27, 2024	Mar. 12, 2024	Dec. 31, 2023	Mar. 08, 2023
Disclosure of terms and conditions of share-based payment arrangement [line items]
Dividend increase percentage	5.00%	11.00%	6.00%	13.00%		28.00%
Dividend declared (in CAD per share)	$ 1.05	$ 1.00	$ 0.90	$ 0.85	$ 1.50	$ 0.75	$ 0.5875
Dividends paid, ordinary shares (in CAD per share)					$ 1.50
Share repurchase term									12 months
Shares repurchased and retired (in shares)								4,000,000		40,050,000
Weighted average price per share of shares repurchased and retired (in CAD per share)								$ 85.54		$ 82.86
Purchase of common shares under Normal Course Issuer Bid								$ 342		$ 3,318
Normal course issuer bid, percent of issued and outstanding shares	10.00%
Common shares, conversion basis, subject to shareholder approval (in shares)	2
Stock options
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting term (in years)										5 years
Shares that may be reserved for issuance as a percentage of common shares outstanding										7.00%
Retained earnings
Disclosure of terms and conditions of share-based payment arrangement [line items]
Purchase of common shares under Normal Course Issuer Bid										$ 2,929
Top of range
Disclosure of terms and conditions of share-based payment arrangement [line items]
Shares authorized to be repurchased through Normal Course Issuer Bid (in shares)											92,296,006
Top of range \| Stock options
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expiration term										6 years
Bottom of range \| Stock options
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expiration term										5 years