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Inventory (Details) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Jan. 01, 2017
Inventories [Abstract] |  |  |
Wireless devices and accessories | $ 202 | $ 179 | $ 179
Merchandise and other | 230 | 201 | 224
Total inventory | 432 | 380 | $ 403
Inventory recognized in cost of revenues | $ 2,980 | $ 2,689 |

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