v3.19.2

condensed interim consolidated financial statements (Details) - CAD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
condensed interim consolidated financial statements
Wireless handsets, parts and accessories	$ 276		$ 276		$ 320
Costs of goods sold	$ 484	$ 469	$ 943	$ 936

X

- Definition

The amount of costs relating to expenses directly or indirectly attributed to the goods or services sold, which may include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, unallocated production overheads and abnormal amounts of production costs of inventories.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 99
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_99&doctype=Standard
-URIDate 2018-03-16

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 103
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_103&doctype=Standard
-URIDate 2018-03-16

+ Details

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

X

- References

No definition available.

+ Details

Name:	tu_CondensedInterimConsolidatedFinancialStatementsAbstract
Namespace Prefix:	tu_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

A classification of inventory that includes wireless handsets, parts and accessories.

+ References

No definition available.

+ Details

Name:	tu_InventoryWirelessHandsetsPartsAccessories
Namespace Prefix:	tu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant