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v3.25.4

Share capital - Narrative (Details) $ in Millions |  |  | 2 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 15, 2025 CAD ($) shares | Jan. 15, 2025 CAD ($) shares | Mar. 06, 2026 CAD ($) shares | Dec. 31, 2025 CAD ($) vote shares | Dec. 31, 2024 CAD ($) shares | Nov. 06, 2025 | May 07, 2025 | Nov. 07, 2024
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Shares redeemed, value | $ |  |  |  | $ 216 | $ 235 |  |  |
Shares issued from treasury, discount, percentage |  |  |  |  | 2.00% |  | 2.00% |
Number of shares issued (in shares) | 10,701,213 | 9,540,786 |  |  |  |  |  |
Number of shares outstanding (in shares) | 312,818,741 | 308,654,258 |  |  |  |  |  |
Issue of common shares | $ | $ 319 | $ 314 |  |  |  |  |  |
Preferred shares |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 3,288 | $ 3,533 |  |  |
Special circumstance vote per share | vote |  |  |  | 1 |  |  |  |
Share conversion ratio |  |  |  | 1 |  |  |  |
Number of shares issued (in shares) |  |  |  | 131,755,879 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 131,755,879 |  |  |  |
First Preferred Shares |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Shares redeemed (in shares) |  |  |  | 9,848,200 | 5,346,488 |  |  |
Stated capital | $ |  |  |  | $ 245 | $ 134 |  |  |
Shares redeemed, value | $ |  |  |  | 182 | 92 |  |  |
Reduction of issued capital | $ |  |  |  | 63 | 42 |  |  |
Series R |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 173 | 190 |  |  |
Dividend rate reset term |  |  |  | 5 years |  |  |  |
Number of shares issued (in shares) |  |  |  | 6,913,600 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 6,913,600 |  |  |  |
Series T |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 126 | 129 |  |  |
Dividend rate reset term |  |  |  | 5 years |  |  |  |
Number of shares issued (in shares) |  |  |  | 5,041,533 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 5,041,533 |  |  |  |
Series Z |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 60 | 66 |  |  |
Dividend rate reset term |  |  |  | 5 years |  |  |  |
Number of shares issued (in shares) |  |  |  | 2,387,648 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 2,387,648 |  |  |  |
Series AA |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 260 | 285 |  |  |
Dividend rate reset term |  |  |  | 5 years |  |  |  |
Number of shares issued (in shares) |  |  |  | 10,186,378 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 10,186,378 |  |  |  |
Series AC |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 157 | 161 |  |  |
Dividend rate reset term |  |  |  | 5 years |  |  |  |
Number of shares issued (in shares) |  |  |  | 6,160,274 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 6,160,274 |  |  |  |
Series AF |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 263 | 221 |  |  |
Dividend rate reset term |  |  |  | 5 years |  |  |  |
Number of shares issued (in shares) |  |  |  | 10,507,633 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 10,507,633 |  |  |  |
Series AG |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 202 | 208 |  |  |
Dividend rate reset term |  |  |  | 5 years |  |  |  |
Number of shares issued (in shares) |  |  |  | 8,097,685 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 8,097,685 |  |  |  |
Series AI |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 218 | 224 |  |  |
Dividend rate reset term |  |  |  | 5 years |  |  |  |
Number of shares issued (in shares) |  |  |  | 8,738,340 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 8,738,340 |  |  |  |
Series AK |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 481 | 535 |  |  |
Dividend rate reset term |  |  |  | 5 years |  |  |  |
Number of shares issued (in shares) |  |  |  | 19,242,741 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 19,242,741 |  |  |  |
Series AM |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 203 | 228 |  |  |
Dividend rate reset term |  |  |  | 5 years |  |  |  |
Number of shares issued (in shares) |  |  |  | 8,861,751 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 8,861,751 |  |  |  |
Series AO |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Dividend rate reset term |  |  |  | 5 years |  |  |  |
Series AQ |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 191 | $ 201 |  |  |
Dividend rate reset term |  |  |  | 5 years |  |  |  |
Number of shares issued (in shares) |  |  |  | 7,727,909 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 7,727,909 |  |  |  |
Class B | Issued capital |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 0 | 0 |  |  |
Series AE |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Stated capital | $ |  |  |  | $ 80 | $ 146 |  |  |
Number of shares issued (in shares) |  |  |  | 3,220,472 |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 3,220,472 |  |  |  |
Major ordinary share transactions | First Preferred Shares |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Shares redeemed (in shares) |  |  | 1,169,641 |  |  |  |  |
Stated capital | $ |  |  | $ 29 |  |  |  |  |
Shares redeemed, value | $ |  |  | 24 |  |  |  |  |
Reduction of issued capital | $ |  |  | $ 5 |  |  |  |  |
Maximum |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |
Percentage of public float |  |  |  |  |  | 10.00% |  | 10.00%

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