OPERATING COSTS (Details) - CAD CAD in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Operating Costs [Abstract]
Cost of equipment sales and direct sales channel subsidies	CAD 2,039	CAD 1,954
Merchandise for resale	237	209
Other external purchases	4,429	4,435
Employee salaries and benefits and stock-based compensation	2,120	2,073
Total operating costs	CAD 8,825	CAD 8,671

The amount of merchandise that was sold during the period and recognised as an expense.

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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.

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The expense of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment.

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The amount of miscellaneous other operating expenses. [Refer: Other operating income (expense)]

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The amount of raw materials and consumables used in the production process or in the rendering of services. [Refer: Current raw materials]

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Operating Costs [Abstract]

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