XML 64 R34.htm IDEA: XBRL DOCUMENT
v3.24.1

Inventory (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Inventories [Abstract] |
Schedule of Inventory |
|  | 2023 |  | 2022
Product inventory |  | $ | 546 |  |  | $ | 611 |
Materials, supplies and other |  | 1,488 |  |  | 1,204 |
|  | $ | 2,034 |  |  | $ | 1,815 |

X
- Definition Disclosure Of Detailed Information About Inventories Explanatory [Table Text Block] + References No definition available. + Details
Name: | cnq_DisclosureOfDetailedInformationAboutInventoriesExplanatoryTableTextBlock
Namespace Prefix: | cnq_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Inventories [Abstract] + References No definition available. + Details
Name: | cnq_InventoriesAbstract
Namespace Prefix: | cnq_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration