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Share Capital - Normal Course Issuer Bid (Details) - CAD ($) $ / shares in Units, $ in Millions |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Feb. 12, 2024 | Feb. 03, 2023 | Feb. 08, 2022 | Jan. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Feb. 26, 2024 | Feb. 17, 2023
Share Capital |  |  |  |  |  |  |  |
Shares repurchased |  |  |  |  | 51,982,000 | 116,908,000 |  |
Average repurchase cost per share |  |  |  |  | $ 42.96 | $ 43.92 |  |
Share repurchase cost |  |  |  |  | $ 2,233 | $ 5,135 |  |
Common shares issued and outstanding | 1,287,461,183 | 1,330,006,760 |  |  |  |  |  |
2024 NCIB |  |  |  |  |  |  |  |
Share Capital |  |  |  |  |  |  |  |
Purchase of shares for cancellation, shares authorized |  |  |  |  |  |  | 128,700,000 |
Shares authorized for repurchase as a percentage of public float | 10.00% |  |  |  |  |  |  |
2023 NCIB |  |  |  |  |  |  |  |
Share Capital |  |  |  |  |  |  |  |
Purchase of shares for cancellation, shares authorized |  |  |  |  |  |  |  | 132,900,000
Shares authorized for repurchase as a percentage of public float |  | 10.00% |  |  |  |  |  |
Shares repurchased |  |  |  |  | 43,700,000 |  |  |
2022 NCIB |  |  |  |  |  |  |  |
Share Capital |  |  |  |  |  |  |  |
Purchase of shares for cancellation, shares authorized |  |  | 71,650,000 |  |  |  |  |
Shares authorized for repurchase as a percentage of public float |  |  | 5.00% | 5.00% |  |  |  |
Shares repurchased |  |  |  |  | 8,300,000 |  |  |
2022 NCIB, as Amended on May 11, 2022 |  |  |  |  |  |  |  |
Share Capital |  |  |  |  |  |  |  |
Purchase of shares for cancellation, shares authorized |  |  | 143,500,000 |  |  |  |  |
Shares authorized for repurchase as a percentage of public float |  |  |  | 10.00% |  |  |  |
Shares repurchased |  |  |  |  |  | 109,800,000 |  |
Average repurchase cost per share |  |  |  |  |  | $ 43.92 |  |
2021 NCIB |  |  |  |  |  |  |  |
Share Capital |  |  |  |  |  |  |  |
Shares repurchased |  |  |  |  |  | 7,100,000 |  |

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