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REVENUE - Unsatisfied Portions of Performance Obligations (Details) $ in Millions	Dec. 31, 2020 CAD ($)
Disclosure of transaction price allocated to remaining performance obligations [line items]
Telecommunications service	$ 3,150
2021
Disclosure of transaction price allocated to remaining performance obligations [line items]
Telecommunications service	2,072
2022
Disclosure of transaction price allocated to remaining performance obligations [line items]
Telecommunications service	741
2023
Disclosure of transaction price allocated to remaining performance obligations [line items]
Telecommunications service	188
Thereafter
Disclosure of transaction price allocated to remaining performance obligations [line items]
Telecommunications service	$ 149

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- Definition

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.

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No definition available.

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- Definition

The amount of the transaction price allocated to the performance obligations that are unsatisfied (or partially unsatisfied) as of the end of the reporting period. The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer, excluding amounts collected on behalf of third parties (for example, some sales taxes). [Refer: Performance obligations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2020-01-01
-Paragraph 120
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2020-en-r&anchor=para_120_a&doctype=Standard
-URIDate 2020-01-01

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