INTANGIBLE ASSETS AND GOODWILL - Narrative (Details) $ in Billions	1 Months Ended	12 Months Ended
Jul. 31, 2021 license	Dec. 31, 2022 CAD ($)
Disclosure of detailed information about intangible assets [line items]
Number of spectrum licenses acquired \| license	325
Spectrum licences
Disclosure of detailed information about intangible assets [line items]
Additions \| $		$ 3.3

The amount of additions to intangible assets other than goodwill, other than those acquired through business combinations. [Refer: Business combinations [member]; Intangible assets other than goodwill]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2022-03-24
-Paragraph 118
-Subparagraph e
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_118_e_i&doctype=Standard
-URIDate 2022-03-24

Name:	ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration