Business acquisitions and disposition - Summary of Fair Value of Consideration From EBOX Acquisition (Details) - EBOX $ in Millions	Feb. 28, 2022 CAD ($)
Disclosure of detailed information about business combination [line items]
Cash consideration paid	$ 153
Total cost to be allocated	153
Other non-cash working capital	5
Property, plant and equipment	5
Indefinite-life intangible assets	17
Finite-life intangible and other assets	15
Trade payables and other liabilities	(17)
Contract liabilities	(5)
Deferred tax liabilities	(9)
Identifiable assets acquired (liabilities assumed), excluding cash and cash equivalents and goodwill	11
Cash and cash equivalents	14
Fair value of net assets acquired	25
Goodwill	$ 128

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Identifiable Assets Acquired (Liabilities Assumed), Excluding Cash And Cash Equivalents and Goodwill

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Indefinite-Life Intangible Assets Recognised As Of Acquisition Date

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Other Non-Cash Working Capital Recognised As Of Acquisition Date

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- Definition

The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]]

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The amount recognised as of the acquisition date for cash and cash equivalents acquired in a business combination. [Refer: Cash and cash equivalents; Business combinations [member]]

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The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]]

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The amount recognised as of the acquisition date for contract liabilities assumed in a business combination. [Refer: Contract liabilities; Business combinations [member]]

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The amount recognised as of the acquisition date for deferred tax liabilities assumed in a business combination. [Refer: Deferred tax liabilities; Business combinations [member]]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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The amount recognised as of the business combination's acquisition date for goodwill. [Refer: Goodwill; Business combinations [member]]

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The amount recognised as of the acquisition date for net identifiable assets acquired or liabilities assumed in a business combination. [Refer: Business combinations [member]]

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The amount recognised as of the acquisition date for plant, property and equipment acquired in a business combination. [Refer: Property, plant and equipment; Business combinations [member]]

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The amount recognised as of the acquisition date for trade and other payables assumed in a business combination. [Refer: Trade and other payables; Business combinations [member]]

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