RELATED PARTY TRANSACTIONS - Narrative (Details) - CAD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Controlling Shareholder
Disclosure of transactions between related parties [line items]
Related party transaction (less than)	$ 1	$ 1
Rogers Communications Canada, Inc. and Rogers Media Inc.
Disclosure of transactions between related parties [line items]
Proportion of ownership interest in subsidiary	100.00%

The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2021-01-01
-Paragraph 17
-Subparagraph b
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-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2021-01-01
-Paragraph 16
-Subparagraph b
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2021-01-01
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration