Acquisition - Summary of Goodwill arising from Acquisition (Detail) - ConocoPhillips Company and Certain of its Subsidiaries [Member] $ in Millions	May 17, 2017 CAD ($)
Disclosure Of Business Combinations [Line Items]
Total Purchase Consideration	$ 17,945
Fair Value of Pre-Existing 50 Percent Ownership Interest in FCCL	12,347
Fair Value of Identifiable Net Assets	(28,262)
Goodwill	$ 2,030

The acquisition-date fair value of equity interest in the acquiree held by the acquirer immediately before the acquisition date in a business combination achieved in stages. [Refer: Business combinations [member]]

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

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The amount of additional goodwill recognised, except goodwill included in a disposal group that, on acquisition, meets the criteria to be classified as held for sale in accordance with IFRS 5. [Refer: Goodwill; Disposal groups classified as held for sale [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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