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SIGNIFICANT ACCOUNTING POLICIES (Details) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2021
Disclosure of reclassifications or changes in presentation [line items] |  |
Goodwill | $ 3,973 | $ 4,024
COVID-19 Pandemic |  |
Disclosure of reclassifications or changes in presentation [line items] |  |
Funding qualified for | 91 |
Several individually immaterial acquisitions |  |
Disclosure of reclassifications or changes in presentation [line items] |  |
Goodwill | $ 50 | 51
Several individually immaterial acquisitions | Cable |  |
Disclosure of reclassifications or changes in presentation [line items] |  |
Goodwill |  | 37
Several individually immaterial acquisitions | Media |  |
Disclosure of reclassifications or changes in presentation [line items] |  |
Goodwill |  | $ 14

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