XML 147 R112.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Retirement Benefit Plans - Summary of Defined Benefit Pension Plan Assets (Detail) - CAD CAD in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Disclosure of fair value of plan assets [line items] |  |
Equity securities | 47.00% | 48.00%
Debt securities | 37.00% | 36.00%
Real estate and other | 16.00% | 16.00%
Quoted [member] |  |
Disclosure of fair value of plan assets [line items] |  |
Equity securities | CAD 1,184 | CAD 1,124
Debt securities | 935 | 850
Real estate and other | 74 | 49
Unquoted [member] |  |
Disclosure of fair value of plan assets [line items] |  |
Real estate and other | CAD 317 | CAD 319

X
- Definition The amount that instruments representing debt (rather than equity) constitute of the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 19 -IssueDate 2017-01-01 -Paragraph 142 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_142_c&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_DisclosureOfFairValueOfPlanAssetsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount that instruments representing equity (rather than debt) constitute of the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 19 -IssueDate 2017-01-01 -Paragraph 142 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_142_b&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_EquityInstrumentsAmountContributedToFairValueOfPlanAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount that real estate constitutes of the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 19 -IssueDate 2017-01-01 -Paragraph 142 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_142_d&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_PropertyAmountContributedToFairValueOfPlanAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage of debt instruments, amount contributed to fair value of plan assets. + References No definition available. + Details
Name: | teck_PercentageOfDebtInstrumentsAmountContributedToFairValueOfPlanAssets
Namespace Prefix: | teck_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of Equity instruments, amount contributed to fair value of plan assets. + References No definition available. + Details
Name: | teck_PercentageOfEquityInstrumentsAmountContributedToFairValueOfPlanAssets
Namespace Prefix: | teck_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of real estate and other contributed to fair value of plan assets. + References No definition available. + Details
Name: | teck_PercentageOfRealEstateAndOtherContributedToFairValueOfPlanAssets
Namespace Prefix: | teck_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_DefinedBenefitPlansAxis=teck_QuotedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_DefinedBenefitPlansAxis=teck_UnquotedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |