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Supplementary Oil And Gas Information (Unaudited) - Results of Operations from Crude Oil and Natural Gas Producing Activities (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Supplementary Oil & Gas Information [Line Items] |  |  |
Crude oil and natural gas revenue, net of royalties, blending and feedstock costs | $ 35,968 | $ 42,298 | $ 30,057
Production | (8,480) | (8,712) | (7,152)
Transportation | (9,302) | (9,973) | (6,604)
Depletion, depreciation and amortization | (6,413) | (7,353) | (5,724)
Asset retirement obligation accretion | (366) | (281) | (185)
Income tax | (1,879) | (2,906) | (1,848)
Oil And Gas |  |  |
Supplementary Oil & Gas Information [Line Items] |  |  |
Crude oil and natural gas revenue, net of royalties, blending and feedstock costs | 27,796 | 33,020 | 24,160
Production | (8,089) | (8,381) | (6,851)
Transportation | (1,558) | (1,431) | (1,184)
Depletion, depreciation and amortization | (6,397) | (7,337) | (5,709)
Asset retirement obligation accretion | (366) | (281) | (185)
Petroleum revenue tax | 273 | 483 | 33
Income tax | (2,684) | (3,552) | (2,396)
Results of operations | 8,975 | 12,521 | 7,868
North America | Oil And Gas |  |  |
Supplementary Oil & Gas Information [Line Items] |  |  |
Crude oil and natural gas revenue, net of royalties, blending and feedstock costs | 26,773 | 31,698 | 23,111
Production | (7,606) | (7,830) | (6,377)
Transportation | (1,550) | (1,424) | (1,176)
Depletion, depreciation and amortization | (5,690) | (5,417) | (5,407)
Asset retirement obligation accretion | (312) | (241) | (158)
Petroleum revenue tax | 0 | 0 | 0
Income tax | (2,700) | (3,896) | (2,317)
Results of operations | 8,915 | 12,890 | 7,676
North Sea | Oil And Gas |  |  |
Supplementary Oil & Gas Information [Line Items] |  |  |
Crude oil and natural gas revenue, net of royalties, blending and feedstock costs | 442 | 635 | 611
Production | (342) | (437) | (383)
Transportation | (7) | (6) | (7)
Depletion, depreciation and amortization | (494) | (1,747) | (160)
Asset retirement obligation accretion | (46) | (33) | (21)
Petroleum revenue tax | 273 | 483 | 33
Income tax | 70 | 442 | (29)
Results of operations | (104) | (663) | 44
Offshore Africa | Oil And Gas |  |  |
Supplementary Oil & Gas Information [Line Items] |  |  |
Crude oil and natural gas revenue, net of royalties, blending and feedstock costs | 581 | 687 | 438
Production | (141) | (114) | (91)
Transportation | (1) | (1) | (1)
Depletion, depreciation and amortization | (213) | (173) | (142)
Asset retirement obligation accretion | (8) | (7) | (6)
Petroleum revenue tax | 0 | 0 | 0
Income tax | (54) | (98) | (50)
Results of operations | $ 164 | $ 294 | $ 148

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