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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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The amount of assets recognised from the costs to obtain or fulfil contracts with customers. The costs to obtain a contract with a customer are the incremental costs of obtaining the contract that the entity would not have incurred if the contract had not been obtained. The costs to fulfil a contract with a customer are the costs that relate directly to a contract or to an anticipated contract that the entity can specifically identify.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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-IssueDate 2025-01-01
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The amount of additions for assets recognised from the costs incurred to obtain or fulfil contracts with customers.

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No definition available.

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The amount of current assets recognised from the costs to obtain or fulfil contracts with customers. The costs to obtain a contract with a customer are the incremental costs of obtaining the contract that the entity would not have incurred if the contract had not been obtained. The costs to fulfil a contract with a customer are the costs that relate directly to a contract or to an anticipated contract that the entity can specifically identify.

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No definition available.

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The amount of non-current assets recognised from the costs to obtain or fulfill contracts with customers. The costs to obtain a contract with a customer are the incremental costs of obtaining the contract that the entity would not have incurred if the contract had not been obtained. The costs to fulfil a contract with a customer are the costs that relate directly to a contract or to an anticipated contract that the entity can specifically identify.

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No definition available.

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other long-term assets - Costs incurred to obtain and fulfill contracts with customers (Details) - CAD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
other long-term assets
Balance, beginning of period	$ 682		$ 783
Additions	133		277
Amortization	(108)	$ 0	(353)
Balance, end of period	707		707
Current	335		335		$ 413
Non-current	372		372		370
Total	707		707		783
Costs incurred to obtain contracts with customers
other long-term assets
Balance, beginning of period	595		701
Additions	125		261
Amortization	(106)		(348)
Balance, end of period	614		614
Current	301		301
Non-current	313		313
Total	614		614		701
Costs incurred to obtain contracts with customers \| Restructuring and other costs
other long-term assets
Amortization	0	$ 0	(130)	$ 0
Costs incurred to fulfill contracts with customers
other long-term assets
Balance, beginning of period	87		82
Additions	8		16
Amortization	(2)		(5)
Balance, end of period	93		93
Current	34		34
Non-current	59		59
Total	$ 93		$ 93		$ 82