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Other Liabilities - Summary of Other Liabilities (Detail) - CAD ($) $ in Millions | May 31, 2022 | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Disclosure of joint ventures [line items] |  |  |
Pension and Other Post-Employment Benefit Plan |  | $ 219 | $ 288
Provision for West White Rose Expansion Project |  | 212 | 259
Provisions for Onerous and Unfavourable Contracts |  | 75 | 99
Employee Long-Term Incentives |  | 116 | 74
Drilling Provisions |  | 26 | 56
Deferred Revenue |  | 43 | 41
Other |  | 99 | 112
Other Liabilities |  | $ 790 | $ 929
Adjustment to West White Rose Expansion Project provision | $ 47 |  |
West White Rose Expansion Project |  |  |
Disclosure of joint ventures [line items] |  |  |
Percentage of working interest acquired | 1250.00% |  |

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