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v3.20.4

Right of Use Assets, Net - Summary of Right of Use Assets, Net (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | $ 1,325 | $ 893
Depreciation | 215 |
Ending balance | 1,139 | 1,325
Cost [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 1,492 | 894
Additions | 53 | 624
Terminations | (1) | (11)
Modifications | (2) |
Reclassifications | (14) | (8)
Re-measurement | (2) | 14
Exchange Rate Movements and Other | (24) | (21)
Ending balance | 1,502 | 1,492
Accumulated Depreciation [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 167 | 1
Depreciation |  | 165
Impairment Losses | 3 | 3
Terminations | (1) | (1)
Exchange Rate Movements and Other | (21) | (1)
Ending balance | 363 | 167
Real estate [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 477 | 517
Depreciation | 27 |
Ending balance | 437 | 477
Real estate [Member] | Cost [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 509 | 517
Additions | 1 | 10
Reclassifications | (14) | (8)
Exchange Rate Movements and Other | (1) | (10)
Ending balance | 495 | 509
Real estate [Member] | Accumulated Depreciation [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 32 |
Depreciation |  | 29
Impairment Losses |  | 3
Exchange Rate Movements and Other | (1) |
Ending balance | 58 | 32
Railcars & Barges [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 440 | 63
Depreciation | 86 |
Ending balance | 349 | 440
Railcars & Barges [Member] | Cost [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 495 | 63
Additions | 18 | 436
Re-measurement | (20) | (2)
Exchange Rate Movements and Other | (13) | (2)
Ending balance | 480 | 495
Railcars & Barges [Member] | Accumulated Depreciation [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 55 |
Depreciation |  | 55
Impairment Losses | 3 |
Exchange Rate Movements and Other | (13) |
Ending balance | 131 | 55
Storage Assets [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 391 | 292
Depreciation | 95 |
Ending balance | 335 | 391
Storage Assets [Member] | Cost [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 464 | 292
Additions | 22 | 172
Terminations | (1) | (11)
Modifications | 1 |
Re-measurement | 19 | 18
Exchange Rate Movements and Other | (8) | (7)
Ending balance | 497 | 464
Storage Assets [Member] | Accumulated Depreciation [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 73 |
Depreciation |  | 75
Terminations | (1) | (1)
Exchange Rate Movements and Other | (5) | (1)
Ending balance | 162 | 73
Refining Equipment [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 7 | 12
Depreciation | 2 |
Ending balance | 10 | 7
Refining Equipment [Member] | Cost [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 10 | 13
Additions | 5 |
Re-measurement |  | (2)
Exchange Rate Movements and Other |  | (1)
Ending balance | 15 | 10
Refining Equipment [Member] | Accumulated Depreciation [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 3 | 1
Depreciation |  | 2
Ending balance | 5 | 3
Other assets [member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 10 | 9
Depreciation | 5 |
Ending balance | 8 | 10
Other assets [member] | Cost [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 14 | 9
Additions | 7 | 6
Modifications | (3) |
Re-measurement | (1) |
Exchange Rate Movements and Other | (2) | (1)
Ending balance | 15 | 14
Other assets [member] | Accumulated Depreciation [Member] |  |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |  |
Beginning balance | 4 |
Depreciation |  | 4
Exchange Rate Movements and Other | (2) |
Ending balance | $ 7 | $ 4

X
- Definition Accumulated depreciation, right-of-use-asset. + References No definition available. + Details
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