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Segmented Information (Details) - CAD CAD in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Revenues and Other Income |  |
Less : Royalties | CAD (931.0) | CAD (265.0)
Operating revenues, net of royalties | 32,051.0 | 26,807.0
Other income (loss) | 125.0 | 161.0
Total revenue | 32,176.0 | 26,968.0
Expenses |  |
Purchases of crude oil and products | 11,121.0 | 9,877.0
Operating, selling and general | 9,245.0 | 9,150.0
Transportation | 1,037.0 | 1,072.0
Depreciation, depletion, amortization and impairment | 5,601.0 | 6,117.0
Exploration | 104.0 | 289.0
Gain on disposal of assets | (602.0) | (68.0)
Financing expense (income) | (246.0) | 445.0
Total expenses | 26,260.0 | 26,882.0
Earnings before Income Taxes | 5,916.0 | 86.0
Income Tax Expense (Recovery) |  |
Current | 1,209.0 | 153.0
Deferred | 249.0 | (512.0)
Total tax expense (income) | 1,458.0 | (359.0)
Net Earnings (Loss) | 4,458.0 | 445.0
Capital and Exploration Expenditures | 6,551.0 | 6,582.0
Operating segments |  |
Revenues and Other Income |  |
Gross revenues | 32,982.0 | 27,072.0
Elimination of intersegment amounts |  |
Revenues and Other Income |  |
Gross revenues | (3,643.0) | (2,516.0)
Corporate Energy Trading And Eliminations |  |
Revenues and Other Income |  |
Gross revenues | 38.0 | 55.0
Operating revenues, net of royalties | (3,605.0) | (2,461.0)
Other income (loss) | (20.0) | 74.0
Total revenue | (3,625.0) | (2,387.0)
Expenses |  |
Purchases of crude oil and products | (3,513.0) | (2,425.0)
Operating, selling and general | 559.0 | 687.0
Transportation | (51.0) | (46.0)
Depreciation, depletion, amortization and impairment | 106.0 | 170.0
Gain on disposal of assets | (97.0) |
Financing expense (income) | (477.0) | 119.0
Total expenses | (3,473.0) | (1,495.0)
Earnings before Income Taxes | (152.0) | (892.0)
Income Tax Expense (Recovery) |  |
Current | (541.0) | (466.0)
Deferred | 330.0 | 60.0
Total tax expense (income) | (211.0) | (406.0)
Net Earnings (Loss) | 59.0 | (486.0)
Capital and Exploration Expenditures | 34.0 | 34.0
Oil Sands |  |
Revenues and Other Income |  |
Less : Royalties | (355.0) | (52.0)
Operating revenues, net of royalties | 12,782.0 | 9,470.0
Other income (loss) | 86.0 | 26.0
Total revenue | 12,868.0 | 9,496.0
Expenses |  |
Purchases of crude oil and products | 623.0 | 548.0
Operating, selling and general | 6,257.0 | 5,777.0
Transportation | 690.0 | 666.0
Depreciation, depletion, amortization and impairment | 3,782.0 | 3,864.0
Exploration | 15.0 | 30.0
Gain on disposal of assets | (50.0) | (33.0)
Financing expense (income) | 180.0 | 234.0
Total expenses | 11,497.0 | 11,086.0
Earnings before Income Taxes | 1,371.0 | (1,590.0)
Income Tax Expense (Recovery) |  |
Current | 192.0 | (363.0)
Deferred | 170.0 | (78.0)
Total tax expense (income) | 362.0 | (441.0)
Net Earnings (Loss) | 1,009.0 | (1,149.0)
Capital and Exploration Expenditures | 5,059.0 | 4,724.0
Oil Sands | Operating segments |  |
Revenues and Other Income |  |
Gross revenues | 9,586.0 | 7,229.0
Oil Sands | Elimination of intersegment amounts |  |
Revenues and Other Income |  |
Gross revenues | 3,551.0 | 2,293.0
Exploration and Production |  |
Revenues and Other Income |  |
Less : Royalties | (576.0) | (213.0)
Operating revenues, net of royalties | 2,911.0 | 2,231.0
Other income (loss) | (14.0) | 45.0
Total revenue | 2,897.0 | 2,276.0
Expenses |  |
Operating, selling and general | 422.0 | 483.0
Transportation | 86.0 | 86.0
Depreciation, depletion, amortization and impairment | 1,028.0 | 1,381.0
Exploration | 89.0 | 259.0
Financing expense (income) | 36.0 | 82.0
Total expenses | 1,661.0 | 2,291.0
Earnings before Income Taxes | 1,236.0 | (15.0)
Income Tax Expense (Recovery) |  |
Current | 617.0 | 301.0
Deferred | (113.0) | (506.0)
Total tax expense (income) | 504.0 | (205.0)
Net Earnings (Loss) | 732.0 | 190.0
Capital and Exploration Expenditures | 824.0 | 1,139.0
Exploration and Production | Operating segments |  |
Revenues and Other Income |  |
Gross revenues | 3,487.0 | 2,329.0
Exploration and Production | Elimination of intersegment amounts |  |
Revenues and Other Income |  |
Gross revenues |  | 115.0
Refining and Marketing |  |
Revenues and Other Income |  |
Operating revenues, net of royalties | 19,963.0 | 17,567.0
Other income (loss) | 73.0 | 16.0
Total revenue | 20,036.0 | 17,583.0
Expenses |  |
Purchases of crude oil and products | 14,011.0 | 11,754.0
Operating, selling and general | 2,007.0 | 2,203.0
Transportation | 312.0 | 366.0
Depreciation, depletion, amortization and impairment | 685.0 | 702.0
Gain on disposal of assets | (455.0) | (35.0)
Financing expense (income) | 15.0 | 10.0
Total expenses | 16,575.0 | 15,000.0
Earnings before Income Taxes | 3,461.0 | 2,583.0
Income Tax Expense (Recovery) |  |
Current | 941.0 | 681.0
Deferred | (138.0) | 12.0
Total tax expense (income) | 803.0 | 693.0
Net Earnings (Loss) | 2,658.0 | 1,890.0
Capital and Exploration Expenditures | 634.0 | 685.0
Refining and Marketing | Operating segments |  |
Revenues and Other Income |  |
Gross revenues | 19,871.0 | 17,459.0
Refining and Marketing | Elimination of intersegment amounts |  |
Revenues and Other Income |  |
Gross revenues | CAD 92.0 | CAD 108.0

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- Definition The amount of expense arising from transportation services. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The income arising in the course of an entity's ordinary activities. Income is increases in economic benefits during the accounting period in the form of inflows or enhancements of assets or decreases of liabilities that result in an increase in equity, other than those relating to contributions from equity participants, net of royalties. + References No definition available. + Details
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- Definition Teh amount of operating income (loss) that the entity does not separately disclose in the same statement or note. + References No definition available. + Details
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