RELATED PARTY TRANSACTIONS - Narrative (Details) - CAD CAD in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Disclosure of transactions between related parties [line items]
Proceeds from disposal of printing services company	CAD 5
Controlling Shareholder
Disclosure of transactions between related parties [line items]
Related party transaction (less than)	CAD 1	CAD 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%

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

No definition available.

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The cash inflow from the disposal of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets. [Refer: Intangible assets other than goodwill; Investment property; Other non-current assets; Property, plant and equipment]

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

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The amount of services received in related party transactions. [Refer: Related parties [member]]

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