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Significant partly-owned subsidiary - Selected Income and Cash Flow Information (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Disclosure of subsidiaries [line items] |  |
Operating revenues | $ 24,673 | $ 24,174
Net earnings | 2,327 | 2,926
Net earnings attributable to NCI | 64 | 58
Total comprehensive income | 1,979 | 3,108
Total comprehensive income attributable to NCI | 61 | 65
Subsidiaries with material non-controlling interests |  |
Disclosure of subsidiaries [line items] |  |
Operating revenues | 969 | 986
Net earnings | 209 | 180
Net earnings attributable to NCI | 65 | 57
Total comprehensive income | 196 | 198
Total comprehensive income attributable to NCI | 61 | 63
Cash dividends paid to NCI | 47 | 39
CTV Specialty hedge |  |
Disclosure of subsidiaries [line items] |  |
Total comprehensive income attributable to NCI | $ 3 | $ 4

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