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Significant partly-owned subsidiary - Selected Income and Cash Flow Information (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of subsidiaries [line items] |  |
Operating revenues | $ 24,409 | $ 24,673
Net earnings | 375 | 2,327
Net earnings attributable to NCI | 31 | 64
Total comprehensive income | 863 | 1,979
Total comprehensive income attributable to NCI | 34 | 61
Subsidiaries with material non-controlling interests |  |
Disclosure of subsidiaries [line items] |  |
Operating revenues | 991 | 969
Net earnings | 100 | 209
Net earnings attributable to NCI | 31 | 65
Total comprehensive income | 108 | 196
Total comprehensive income attributable to NCI | 34 | 61
Cash dividends paid to NCI | 68 | 47
CTV Specialty hedge |  |
Disclosure of subsidiaries [line items] |  |
Total comprehensive income attributable to NCI | $ 2 | $ 3

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