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Related Party Transactions (Details) - Husky Midstream Limited Partnership - Joint ventures where entity is venturer - CAD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disclosure of transactions between related parties [line items]
Share of equity investment			35.00%
Revenues from Construction and Management Services	$ 50	$ 47	$ 116	$ 116
Transportation Expenses	$ 66	$ 67	$ 203	$ 207

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- Definition

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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No definition available.

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The proportion of ownership interest in a joint venture attributable to the entity. [Refer: Total for all joint ventures [member]]

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The amount of goods purchased by the entity in related party transactions. [Refer: Total for all related parties [member]]

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The amount of revenue arising from the rendering of services in related party transactions. [Refer: Revenue; Total for all related parties [member]]

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