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v3.22.1

Share Capital - Narrative (Details) - CAD ($) $ / shares in Units, $ in Millions |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 02, 2022 | Nov. 03, 2021 | Mar. 03, 2021 | Mar. 04, 2020 | Mar. 06, 2019 | Feb. 28, 2018 | Mar. 23, 2022 | Mar. 10, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Mar. 09, 2021
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |
Dividend increase percentage | 28.00% | 25.00% | 11.00% | 13.00% | 12.00% |  |  |  |  |  |  |
Quarterly dividend declared (in CAD per share) | $ 0.75 | $ 0.5875 | $ 0.47 | $ 0.425 | $ 0.375 | $ 0.335 |  |  |  |  |  |
Share repurchase term |  |  |  |  |  |  |  | 12 years |  |  |  |
Shares repurchased and retired (in shares) |  |  |  |  |  |  | 10,500,000 |  | 33,644,400 |  |  |
Weighted average price per share of shares repurchased and retired (in CAD per share) |  |  |  |  |  |  | $ 64.79 |  | $ 46.98 |  |  |
Purchase of common shares under Normal Course Issuer Bid |  |  |  |  |  |  | $ 680 |  | $ 1,581 |  |  |
Normal course issuer bid, percent of issued and outstanding shares | 10.00% |  |  |  |  |  |  |  |  |  |  |
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) |  |  |  |  |  |  |  |  |  |  |  | 59,278,474
Stock options |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |
Vesting term |  |  |  |  |  |  |  |  | 5 years |  |  |
Shares that may be reserved for issuance as a percentage of common shares outstanding |  |  |  |  |  |  |  |  | 7.00% |  |  |
Stock options | Bottom of range |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |
Expiration term |  |  |  |  |  |  |  |  | 5 years |  |  |
Stock options | Top of range |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |
Expiration term |  |  |  |  |  |  |  |  | 6 years |  |  |
Retained earnings |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |
Purchase of common shares under Normal Course Issuer Bid |  |  |  |  |  |  |  |  | $ 1,297 | $ 215 | $ 738 |

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