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v3.25.1

Segmented Information - Narrative (Details) | 12 Months Ended
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Dec. 31, 2024 segment
Operating Segments [Abstract] |
Number of geographic segments | 3

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- Definition Number Of Geographic Segments + References No definition available. + Details
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Namespace Prefix: | cnq_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Operating Segments [Abstract] + References No definition available. + Details
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Namespace Prefix: | cnq_
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Balance Type: | na
Period Type: | duration