XML 81 R115.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Provisions and Other Liabilities - Additional Information (Detail) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 CAD ($) | Dec. 31, 2018 CAD ($)
Disclosure of other provisions [line items] |  |
Other provisions | $ 2,470 | $ 1,808
Other environment related provision |  |
Disclosure of other provisions [line items] |  |
Provisions | 78 | 33
Provision for decommissioning, restoration and rehabilitation costs |  |
Disclosure of other provisions [line items] |  |
Other provisions | 2,234 | 1,614
Water quality management costs |  |
Disclosure of other provisions [line items] |  |
Other provisions | $ 745 |
Extended period | 100 years |
Provision for decommissioning, restoration and rehabilitation costs, closed operations |  |
Disclosure of other provisions [line items] |  |
Other provisions | $ 396 | $ 249
Steelmaking Coal | Water quality management costs |  |
Disclosure of other provisions [line items] |  |
Other provisions | $ 411 |
Discount rate | Bottom of range | Provision for decommissioning, restoration and rehabilitation costs |  |
Disclosure of other provisions [line items] |  |
Nominal discount rate | 0.0503 |
Discount rate | Top of range | Provision for decommissioning, restoration and rehabilitation costs |  |
Disclosure of other provisions [line items] |  |
Nominal discount rate | 0.0669 |
Inflation rate | Provision for decommissioning, restoration and rehabilitation costs |  |
Disclosure of other provisions [line items] |  |
Nominal discount rate | 0.0200 | 0.0200

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfOtherProvisionsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount recognised for new other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2019-01-01 -Paragraph 84 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_84_b&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_NewProvisionsOtherProvisions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of provisions other than provisions for employee benefits. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2019-01-01 -Paragraph 84 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_84_a&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78_d&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_OtherProvisions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The value of significant unobservable input used in the measurement of the fair value of liabilities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2019-01-01 -Paragraph 93 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2019-en-r&anchor=para_93_d&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_SignificantUnobservableInputLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Extended Period, Other Provisions + References No definition available. + Details
Name: | teck_ExtendedPeriodOtherProvisions
Namespace Prefix: | teck_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfProvisionsAxis=ifrs-full_OtherEnvironmentRelatedProvisionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfProvisionsAxis=ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfProvisionsAxis=teck_WaterQualityManagementCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfProvisionsAxis=teck_ProvisionForDecommissioningRestorationAndRehabilitationCostsClosedOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=teck_SteelmakingCoalSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=ifrs-full_DiscountRateMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=teck_InflationRateMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |