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Consolidated Statements of Income - CAD shares in Millions, CAD in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Profit or loss [abstract] |  |
Revenues | CAD 12,048 | CAD 9,300
Cost of sales | (7,419) | (6,904)
Gross profit | 4,629 | 2,396
Other operating income (expenses) |  |
General and administration | (116) | (99)
Exploration | (58) | (51)
Research and development | (55) | (30)
Impairment reversal and (asset impairments) (Note 6) | 163 | (294)
Other operating expense (Note 7) | (230) | (197)
Profit (loss) from operations | 4,333 | 1,725
Finance income (Note 8) | 17 | 16
Finance expense (Note 8) | (229) | (354)
Non-operating income (expense) (Note 9) | (151) | 239
Share of income of associates and joint ventures (Note 14) | 6 | 2
Profit (loss) before taxes | 3,976 | 1,628
Provision for income taxes (Note 19) | (1,438) | (587)
Profit for the year | 2,538 | 1,041
Profit attributable to: |  |
Shareholders of the company | 2,509 | 1,040
Non-controlling interests | 29 | 1
Profit for the year | CAD 2,538 | CAD 1,041
Earnings per share (Note 23(f)) |  |
Basic | CAD 4.34 | CAD 1.80
Diluted | CAD 4.28 | CAD 1.78
Weighted average shares outstanding (millions) | 577.5 | 576.4
Shares outstanding at end of year (millions) | 573.3 | 576.9

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Name: | teck_NonOperatingIncomeExpense1
Namespace Prefix: | teck_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Other operating income expense abstract. + References No definition available. + Details
Name: | teck_OtherOperatingIncomeExpenseAbstract
Namespace Prefix: | teck_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Shares outstanding at end of year. + References No definition available. + Details
Name: | teck_SharesOutstandingAtEndOfYear
Namespace Prefix: | teck_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration