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INVENTORIES (Details) - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Inventories [Abstract]    
Wireless devices and accessories $ 357 $ 436
Other finished goods and merchandise 81 99
Total inventories 438 535
Cost of equipment sales and merchandise for resale $ 2,376 $ 2,432