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Segmented Information - Operating Segments Earnings (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Revenue [abstract] |  |  |
Product sales | $ 32,854 | $ 17,491 | $ 24,394
Less: royalties | (2,797) | (598) | (1,523)
Revenue | 30,057 | 16,893 | 22,871
Expenses |  |  |
Production | 7,152 | 6,280 | 6,277
Transportation, blending and feedstock | 6,604 | 4,498 | 4,699
Depletion, depreciation and amortization | 5,724 | 6,046 | 5,546
Asset retirement obligation accretion | 185 | 205 | 190
Risk management activities (commodity derivatives) | 17 | 32 | 64
Gain on acquisitions | (478) | (217) | 0
Income from North West Redwater Partnership | (400) | 0 | 0
(Gain) loss from investments | (141) | 171 | 293
Total expenses | 20,146 | 17,766 | 17,915
Earnings (loss) before taxes | 9,911 | (873) | 4,956
Administration | 366 | 391 | 344
Share-based compensation | 514 | (82) | 223
Interest and other financing expense | 711 | 756 | 836
Net unrealized risk management loss (gain) | 19 | (39) | 13
Foreign exchange gain | (127) | (275) | (570)
Current income tax expense (recovery) | 1,848 | (257) | 434
Deferred income tax expense (recovery) | 399 | (181) | (894)
Net earnings (loss) | 7,664 | (435) | 5,416
Inter–segment elimination and other |  |  |
Revenue [abstract] |  |  |
Less: royalties | 0 | 0 | 0
Revenue | (161) | 105 | 496
Expenses |  |  |
Production | 67 | 48 | 56
Transportation, blending and feedstock | (231) | 27 | 437
Depletion, depreciation and amortization | 0 | 0 | 0
Asset retirement obligation accretion | 0 | 0 | 0
Risk management activities (commodity derivatives) | 0 | 0 | 0
Gain on acquisitions | 0 | 0 | 0
Income from North West Redwater Partnership | 0 | 0 | 0
(Gain) loss from investments | 0 | 0 | 0
Total expenses | (164) | 75 | 493
Earnings (loss) before taxes | 3 | 30 | 3
Inter–segment elimination and other | Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | 3 | 31 | 0
Inter–segment elimination and other | Crude Oil, Natural Gas Liquids, Natural Gas, Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | (161) | 105 | 496
Non-segmented |  |  |
Expenses |  |  |
(Gain) loss from investments | (141) | 171 | 6
Total expenses | 1,330 | 974 | 867
Administration | 366 | 391 | 344
Share-based compensation | 514 | (82) | 223
Interest and other financing expense | 711 | 756 | 836
Net unrealized risk management loss (gain) | 7 | 13 | 28
Foreign exchange gain | (127) | (275) | (570)
Total Segments |  |  |
Revenue [abstract] |  |  |
Less: royalties | (2,797) | (598) | (1,523)
Revenue | 30,057 | 16,893 | 22,871
Expenses |  |  |
Production | 7,152 | 6,280 | 6,277
Transportation, blending and feedstock | 6,604 | 4,498 | 4,699
Depletion, depreciation and amortization | 5,724 | 6,046 | 5,546
Asset retirement obligation accretion | 185 | 205 | 190
Risk management activities (commodity derivatives) | 29 | (20) | 49
Gain on acquisitions | (478) | (217) | 0
Income from North West Redwater Partnership | (400) | 0 | 0
(Gain) loss from investments | 0 | 0 | 287
Total expenses | 18,816 | 16,792 | 17,048
Earnings (loss) before taxes | 11,241 | 101 | 5,823
Total Segments | Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | 882 | 434 | 25
Total Segments | Crude Oil, Natural Gas Liquids, Natural Gas, Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | 32,854 | 17,491 | 24,394
North America | Operating segments |  |  |
Revenue [abstract] |  |  |
Less: royalties | (1,694) | (503) | (998)
Revenue | 15,387 | 8,260 | 9,837
Expenses |  |  |
Production | 2,963 | 2,510 | 2,425
Transportation, blending and feedstock | 4,772 | 3,393 | 2,935
Depletion, depreciation and amortization | 3,569 | 3,780 | 3,326
Asset retirement obligation accretion | 101 | 97 | 95
Risk management activities (commodity derivatives) | 29 | (20) | 49
Gain on acquisitions | (478) | (217) | 0
Income from North West Redwater Partnership | 0 | 0 | 0
(Gain) loss from investments | 0 | 0 | 0
Total expenses | 10,956 | 9,543 | 8,830
Earnings (loss) before taxes | 4,431 | (1,283) | 1,007
North America | Operating segments | Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | 119 | 41 | 6
North America | Operating segments | Crude Oil, Natural Gas Liquids, Natural Gas, Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | 17,081 | 8,763 | 10,835
North Sea | Operating segments |  |  |
Revenue [abstract] |  |  |
Less: royalties | (1) | (1) | (2)
Revenue | 610 | 431 | 920
Expenses |  |  |
Production | 383 | 321 | 391
Transportation, blending and feedstock | 7 | 15 | 19
Depletion, depreciation and amortization | 160 | 277 | 308
Asset retirement obligation accretion | 21 | 30 | 28
Risk management activities (commodity derivatives) | 0 | 0 | 0
Gain on acquisitions | 0 | 0 | 0
Income from North West Redwater Partnership | 0 | 0 | 0
(Gain) loss from investments | 0 | 0 | 0
Total expenses | 571 | 643 | 746
Earnings (loss) before taxes | 39 | (212) | 174
North Sea | Operating segments | Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | (1) | 3 | 5
North Sea | Operating segments | Crude Oil, Natural Gas Liquids, Natural Gas, Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | 611 | 432 | 922
Offshore Africa | Operating segments |  |  |
Revenue [abstract] |  |  |
Less: royalties | (21) | (16) | (42)
Revenue | 437 | 362 | 665
Expenses |  |  |
Production | 91 | 103 | 109
Transportation, blending and feedstock | 1 | 1 | 2
Depletion, depreciation and amortization | 142 | 190 | 242
Asset retirement obligation accretion | 6 | 6 | 6
Risk management activities (commodity derivatives) | 0 | 0 | 0
Gain on acquisitions | 0 | 0 | 0
Income from North West Redwater Partnership | 0 | 0 | 0
(Gain) loss from investments | 0 | 0 | 0
Total expenses | 240 | 300 | 359
Earnings (loss) before taxes | 197 | 62 | 306
Offshore Africa | Operating segments | Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | 7 | 18 | 8
Offshore Africa | Operating segments | Crude Oil, Natural Gas Liquids, Natural Gas, Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | 458 | 378 | 707
Oil Sands Mining and Upgrading | Operating segments |  |  |
Revenue [abstract] |  |  |
Less: royalties | (1,081) | (78) | (481)
Revenue | 13,025 | 7,450 | 10,865
Expenses |  |  |
Production | 3,414 | 3,114 | 3,276
Transportation, blending and feedstock | 1,505 | 881 | 1,306
Depletion, depreciation and amortization | 1,838 | 1,784 | 1,656
Asset retirement obligation accretion | 57 | 72 | 61
Risk management activities (commodity derivatives) | 0 | 0 | 0
Gain on acquisitions | 0 | 0 | 0
Income from North West Redwater Partnership | 0 | 0 | 0
(Gain) loss from investments | 0 | 0 | 0
Total expenses | 6,814 | 5,851 | 6,299
Earnings (loss) before taxes | 6,211 | 1,599 | 4,566
Oil Sands Mining and Upgrading | Operating segments | Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | 73 | 139 | 6
Oil Sands Mining and Upgrading | Operating segments | Crude Oil, Natural Gas Liquids, Natural Gas, Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | 14,106 | 7,528 | 11,346
Midstream and Refining | Operating segments |  |  |
Revenue [abstract] |  |  |
Less: royalties | 0 | 0 | 0
Revenue | 759 | 285 | 88
Expenses |  |  |
Production | 234 | 184 | 20
Transportation, blending and feedstock | 550 | 181 | 0
Depletion, depreciation and amortization | 15 | 15 | 14
Asset retirement obligation accretion | 0 | 0 | 0
Risk management activities (commodity derivatives) | 0 | 0 | 0
Gain on acquisitions | 0 | 0 | 0
Income from North West Redwater Partnership | (400) | 0 | 0
(Gain) loss from investments | 0 | 0 | 287
Total expenses | 399 | 380 | 321
Earnings (loss) before taxes | 360 | (95) | (233)
Midstream and Refining | Operating segments | Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | 681 | 202 | 0
Midstream and Refining | Operating segments | Crude Oil, Natural Gas Liquids, Natural Gas, Other Income And Revenue |  |  |
Revenue [abstract] |  |  |
Revenue | 759 | 285 | 88
Crude Oil and NGLs | Inter–segment elimination and other |  |  |
Revenue [abstract] |  |  |
Product sales | (360) | (108) | 351
Crude Oil and NGLs | Total Segments |  |  |
Revenue [abstract] |  |  |
Product sales | 29,256 | 15,579 | 22,950
Crude Oil and NGLs | North America | Operating segments |  |  |
Revenue [abstract] |  |  |
Product sales | 14,478 | 7,480 | 9,679
Crude Oil and NGLs | North Sea | Operating segments |  |  |
Revenue [abstract] |  |  |
Product sales | 607 | 417 | 860
Crude Oil and NGLs | Offshore Africa | Operating segments |  |  |
Revenue [abstract] |  |  |
Product sales | 420 | 318 | 632
Crude Oil and NGLs | Oil Sands Mining and Upgrading | Operating segments |  |  |
Revenue [abstract] |  |  |
Product sales | 14,033 | 7,389 | 11,340
Crude Oil and NGLs | Midstream and Refining | Operating segments |  |  |
Revenue [abstract] |  |  |
Product sales | 78 | 83 | 88
Natural gas | Inter–segment elimination and other |  |  |
Revenue [abstract] |  |  |
Product sales | 196 | 182 | 145
Natural gas | Total Segments |  |  |
Revenue [abstract] |  |  |
Product sales | 2,716 | 1,478 | 1,419
Natural gas | North America | Operating segments |  |  |
Revenue [abstract] |  |  |
Product sales | 2,484 | 1,242 | 1,150
Natural gas | North Sea | Operating segments |  |  |
Revenue [abstract] |  |  |
Product sales | 5 | 12 | 57
Natural gas | Offshore Africa | Operating segments |  |  |
Revenue [abstract] |  |  |
Product sales | 31 | 42 | 67
Natural gas | Oil Sands Mining and Upgrading | Operating segments |  |  |
Revenue [abstract] |  |  |
Product sales | 0 | 0 | 0
Natural gas | Midstream and Refining | Operating segments |  |  |
Revenue [abstract] |  |  |
Product sales | $ 0 | 0 | $ 0
Keystone XL Pipeline Project | Inter–segment elimination and other |  |  |
Expenses |  |  |
Transportation, blending and feedstock |  | $ 143 |

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