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Inventory (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Inventories [Abstract] |  |
Wireless devices and accessories | $ 189 | $ 199
Merchandise and other | 250 | 228
Total inventory | 439 | 427
Inventory recognized in cost of revenues | $ 2,927 | $ 3,141

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