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SEGMENTED INFORMATION - Capital Expenditures (Details) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | May 31, 2017
Exploration and evaluation assets |  |  |
Net expenditures (proceeds) | $ 317 | $ 26 |
Non-cash and fair value changes | (67) | (229) |
Capitalized costs | 250 | (203) |
Property, plant and equipment |  |  |
Net expenditures (proceeds) | 12,755 | 3,831 |
Non-cash and fair value changes | 6,029 | (53) |
Capitalized costs | 18,784 | 3,778 |
Non-segmented |  |  |
Property, plant and equipment |  |  |
Net expenditures (proceeds) | 19 | 17 |
Non-cash and fair value changes | 0 | 0 |
Capitalized costs | 19 | 17 |
North America |  |  |
Property, plant and equipment |  |  |
Gain on sale of exploration and evaluation assets | 35 | 32 |
North America | Operating segments |  |  |
Exploration and evaluation assets |  |  |
Net expenditures (proceeds) | 160 | 17 |
Non-cash and fair value changes | (184) | (211) |
Capitalized costs | (24) | (194) |
Property, plant and equipment |  |  |
Net expenditures (proceeds) | 2,815 | 1,143 |
Non-cash and fair value changes | 354 | (36) |
Capitalized costs | 3,169 | 1,107 |
North Sea | Operating segments |  |  |
Exploration and evaluation assets |  |  |
Net expenditures (proceeds) | 0 | 0 |
Non-cash and fair value changes | 0 | 0 |
Capitalized costs | 0 | 0 |
Property, plant and equipment |  |  |
Net expenditures (proceeds) | 160 | 126 |
Non-cash and fair value changes | 95 | 60 |
Capitalized costs | 255 | 186 |
Offshore Africa | Operating segments |  |  |
Exploration and evaluation assets |  |  |
Net expenditures (proceeds) | 15 | 9 |
Non-cash and fair value changes | 0 | (18) |
Capitalized costs | 15 | (9) |
Property, plant and equipment |  |  |
Net expenditures (proceeds) | 89 | 142 |
Non-cash and fair value changes | 12 | (26) |
Capitalized costs | 101 | 116 |
Exploration and Production | Operating segments |  |  |
Property, plant and equipment |  |  |
Net expenditures (proceeds) | 3,064 | 1,411 |
Non-cash and fair value changes | 461 | (2) |
Capitalized costs | 3,525 | 1,409 |
Oil Sands Mining and Upgrading | Operating segments |  |  |
Exploration and evaluation assets |  |  |
Net expenditures (proceeds) | 142 | 0 |
Non-cash and fair value changes | 117 | 0 |
Capitalized costs | 259 | 0 |
Property, plant and equipment |  |  |
Net expenditures (proceeds) | 9,592 | 2,718 |
Non-cash and fair value changes | 5,454 | (23) |
Capitalized costs | 15,046 | 2,695 |
Midstream |  |  |
Property, plant and equipment |  |  |
Pre-tax gain on sale of properties |  | 218 |
Pre-tax non-cash revaluation gain | 114 |  |
After-tax non-cash revaluation gain | 83 |  |
Midstream | Operating segments |  |  |
Property, plant and equipment |  |  |
Net expenditures (proceeds) | 80 | (315) |
Non-cash and fair value changes | 114 | (28) |
Capitalized costs | 194 | $ (343) |
AOSP |  |  |
Property, plant and equipment |  |  |
Non-cash share considerations issued on the acquisition of AOSP and other assets | $ 3,818 |  | $ 3,818

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