XML 88 R58.htm IDEA: XBRL DOCUMENT v3.24.1
Property, Plant and Equipment - Detailed information about property, plant and equipment (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period $ 64,859  
Property, plant and equipment at end of period 64,581 $ 64,859
North Sea    
Reconciliation of changes in property, plant and equipment [abstract]    
Recoverability charge 436 1,620
Operating segments | North America    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 25,240  
Property, plant and equipment at end of period 24,643 25,240
Operating segments | North Sea    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 152  
Property, plant and equipment at end of period 224 152
Operating segments | Offshore Africa    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 1,055  
Property, plant and equipment at end of period 1,051 1,055
Operating segments | Oil Sands Mining and Upgrading    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 38,020  
Property, plant and equipment at end of period 38,270 38,020
Operating segments | Midstream and Refining    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 276  
Property, plant and equipment at end of period 271 276
Head Office    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 116  
Property, plant and equipment at end of period 122 116
Cost    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 142,407 137,082
Additions/Acquisitions 5,824 5,356
Transfers from exploration and evaluation assets 63 71
Derecognitions (1,051) (864)
Disposals   (35)
Foreign exchange adjustments and other 320 (797)
Property, plant and equipment at end of period 146,923 142,407
Cost | Operating segments | North America    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 81,075 77,834
Additions/Acquisitions 2,951 3,564
Transfers from exploration and evaluation assets 38 71
Derecognitions (581) (394)
Disposals   0
Foreign exchange adjustments and other 0 0
Property, plant and equipment at end of period 83,483 81,075
Cost | Operating segments | North Sea    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 8,258 7,438
Additions/Acquisitions 558 304
Transfers from exploration and evaluation assets 0 0
Derecognitions 0 (1)
Disposals   0
Foreign exchange adjustments and other 210 (517)
Property, plant and equipment at end of period 8,606 8,258
Cost | Operating segments | Offshore Africa    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 4,332 3,980
Additions/Acquisitions 187 75
Transfers from exploration and evaluation assets 0 0
Derecognitions 0 0
Disposals   0
Foreign exchange adjustments and other 110 (277)
Property, plant and equipment at end of period 4,409 4,332
Cost | Operating segments | Oil Sands Mining and Upgrading    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 47,732 46,856
Additions/Acquisitions 2,088 1,380
Transfers from exploration and evaluation assets 25
Derecognitions (470) (469)
Disposals   (35)
Foreign exchange adjustments and other 0 0
Property, plant and equipment at end of period 49,375 47,732
Cost | Operating segments | Midstream and Refining    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 474 466
Additions/Acquisitions 10 8
Transfers from exploration and evaluation assets 0 0
Derecognitions 0 0
Disposals   0
Foreign exchange adjustments and other 0 0
Property, plant and equipment at end of period 484 474
Cost | Head Office    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period 536 508
Additions/Acquisitions 30 25
Transfers from exploration and evaluation assets 0 0
Derecognitions 0 0
Disposals   0
Foreign exchange adjustments and other 0 (3)
Property, plant and equipment at end of period 566 536
Accumulated depletion and depreciation    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period (77,548) (70,682)
Expense 5,704 5,489
Derecognitions 1,051 864
Disposals   2
Recoverability charge 436 1,620
Foreign exchange adjustments and other (295) 623
Property, plant and equipment at end of period (82,342) (77,548)
Accumulated depletion and depreciation | Operating segments | North America    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period (55,835) (52,732)
Expense 3,592 3,502
Derecognitions 581 394
Disposals   0
Recoverability charge 0 0
Foreign exchange adjustments and other (6) (5)
Property, plant and equipment at end of period (58,840) (55,835)
Accumulated depletion and depreciation | Operating segments | North Sea    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period (8,106) (5,951)
Expense 40 117
Derecognitions 0 1
Disposals   0
Recoverability charge 436 1,620
Foreign exchange adjustments and other (200) 419
Property, plant and equipment at end of period (8,382) (8,106)
Accumulated depletion and depreciation | Operating segments | Offshore Africa    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period (3,277) (2,923)
Expense 177 148
Derecognitions 0 0
Disposals   0
Recoverability charge 0 0
Foreign exchange adjustments and other (96) 206
Property, plant and equipment at end of period (3,358) (3,277)
Accumulated depletion and depreciation | Operating segments | Oil Sands Mining and Upgrading    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period (9,712) (8,499)
Expense 1,856 1,684
Derecognitions 470 469
Disposals   2
Recoverability charge 0 0
Foreign exchange adjustments and other 7 0
Property, plant and equipment at end of period (11,105) (9,712)
Accumulated depletion and depreciation | Operating segments | Midstream and Refining    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period (198) (183)
Expense 15 15
Derecognitions 0 0
Disposals   0
Recoverability charge 0 0
Foreign exchange adjustments and other 0 0
Property, plant and equipment at end of period (213) (198)
Accumulated depletion and depreciation | Head Office    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment at beginning of period (420) (394)
Expense 24 23
Derecognitions 0 0
Disposals   0
Recoverability charge 0 0
Foreign exchange adjustments and other 0 3
Property, plant and equipment at end of period $ (444) $ (420)