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Per Share Amounts - Preferred Share Dividends (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Earnings per share [line items] |  |
Total Preferred Share Dividends Declared | $ 36 | $ 36
Series 1 First Preferred Shares |  |
Earnings per share [line items] |  |
Total Preferred Share Dividends Declared | 7 | 7
Series 2 First Preferred Shares |  |
Earnings per share [line items] |  |
Total Preferred Share Dividends Declared | 2 | 2
Series 3 First Preferred Shares |  |
Earnings per share [line items] |  |
Total Preferred Share Dividends Declared | 12 | 12
Series 5 First Preferred Shares |  |
Earnings per share [line items] |  |
Total Preferred Share Dividends Declared | 9 | 9
Series 7 First Preferred Shares |  |
Earnings per share [line items] |  |
Total Preferred Share Dividends Declared | $ 6 | $ 6

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- Definition The amount of dividends paid by the entity on shares other than ordinary shares. [Refer: Ordinary shares [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 34 -IssueDate 2024-01-01 -Paragraph 16A -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=34&code=ifrs-tx-2024-en-r&anchor=para_16A_f&doctype=Standard -URIDate 2024-03-27 + Details
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