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v3.25.2

Share capital (Details) $ in Millions |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 15, 2025 CAD ($) shares | Jan. 15, 2025 CAD ($) shares | Aug. 07, 2025 CAD ($) shares | Jun. 30, 2025 CAD ($) shares | Jun. 30, 2024 CAD ($) | Jun. 30, 2025 CAD ($) shares | Jun. 30, 2024 CAD ($) | May 07, 2025 | Feb. 01, 2025 shares
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |
Payments to acquire or redeem entity's shares |  |  |  | $ 32 | $ 40 | $ 96 | $ 144 |  |
Shares issued from treasury, discount, percentage |  |  |  |  |  |  |  | 2.00% |
Number of shares issued (in shares) | shares | 10,701,213 | 9,540,786 |  |  |  |  |  |  |
Number of shares outstanding (in shares) | shares | 312,818,741 | 308,654,258 |  |  |  |  |  |  |
Issue of common shares | $ 319 | $ 314 |  |  |  |  |  |  |
First Preferred Shares |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |
Number of shares repurchased and retired (in shares) | shares |  |  |  | 2,275,526 |  | 4,362,531 |  |  |
Cancellation of treasury shares |  |  |  | $ 57 |  | $ 109 |  |  |
Payments to acquire or redeem entity's shares |  |  |  | 39 |  | 76 |  |  |
Reduction of issued capital |  |  |  | $ 18 |  | $ 33 |  |  |
First Preferred Shares | Major ordinary share transactions |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |
Number of shares repurchased and retired (in shares) | shares |  |  | 1,128,138 |  |  |  |  |  |
Cancellation of treasury shares |  |  | $ 28 |  |  |  |  |  |
Payments to acquire or redeem entity's shares |  |  | 21 |  |  |  |  |  |
Reduction of issued capital |  |  | $ 7 |  |  |  |  |  |
Series AF Convertible Preference Shares |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |
Number of shares converted (in shares) | shares |  |  |  |  |  |  |  |  | 8,050
Share conversion ratio |  |  |  | 1 |  | 1 |  |  |
Series AE Convertible Preference Shares |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |
Number of shares converted (in shares) | shares |  |  |  |  |  |  |  |  | 2,479,334
Share conversion ratio |  |  |  | 1 |  | 1 |  |  |

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