XML 52 R22.htm IDEA: XBRL DOCUMENT
v3.8.0.1

CAPITAL DISCLOSURES | 12 Months Ended
--- | ---
Dec. 31, 2017
Corporate Information And Statement Of IFRS Compliance [Abstract] |
CAPITAL DISCLOSURES | CAPITAL DISCLOSURES The Company does not have any externally imposed regulatory capital requirements for managing capital. The Company has defined its capital to mean its long-term debt and consolidated shareholders’ equity, as determined at each reporting date. The Company’s objectives when managing its capital structure are to maintain financial flexibility and balance to enable the Company to access capital markets to sustain its on-going operations and to support its growth strategies. The Company primarily monitors capital on the basis of an internally derived financial measure referred to as its "debt to book capitalization ratio", which is the arithmetic ratio of net current and long-term debt divided by the sum of the carrying value of shareholders’ equity plus net current and long-term debt. The Company’s internal targeted range for its debt to book capitalization ratio is 25% to 45%. This range may be exceeded in periods when a combination of capital projects, acquisitions, or lower commodity prices occurs. The Company may be below the low end of the targeted range when cash flow from operating activities is greater than current investment activities. At December 31, 2017, the ratio was within the target range at 41%. Readers are cautioned that the debt to book capitalization ratio is not defined by IFRS and this financial measure may not be comparable to similar measures presented by other companies. Further, there are no assurances that the Company will continue to use this measure to monitor capital or will not alter the method of calculation of this measure in the future.
|  | 2017 |  |  | 2016 |
Long-term debt, net (1) |  | $ | 22,321 |  |  | $ | 16,788 |
Total shareholders’ equity |  | $ | 31,653 |  |  | $ | 26,267 |
Debt to book capitalization |  | 41% |  |  | 39% |
(1) | Includes the current portion of long-term debt, net of cash and cash equivalents.

X
- Definition Corporate Information And Statement Of IFRS Compliance [Abstract] + References No definition available. + Details
Name: | cnq_CorporateInformationAndStatementOfIFRSComplianceAbstract
Namespace Prefix: | cnq_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of information that enables users of financial statements to evaluate the entity's objectives, policies and processes for managing capital. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 134 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_134&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration