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Decommissioning Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2022
Provision for decommissioning, restoration and rehabilitation costs [abstract] |
Summary of Decommissioning Provision |
| 2022 |  | 2021
Decommissioning Liabilities, Beginning of Year | 3,906 |  | 1,248
Liabilities Incurred | 22 |  | 30
Liabilities Acquired (Note 5) (1) | 48 |  | 2,856
Liabilities Settled | (215) |  | (144)
Liabilities Divested (Note 5) (1) | (89) |  | (140)
Change in Estimated Future Cash Flows | 693 |  | (472)
Change in Discount Rates | (980) |  | 450
Unwinding of Discount on Decommissioning Liabilities (Note 7) | 176 |  | 199
Transfers to Liabilities Related to Assets Held for Sale (Note 18) | — |  | (128)
Exchange Rate Movements and Other | (2) |  | 7
Decommissioning Liabilities, End of Year | 3,559 |  | 3,906
(1) In connection with the Sunrise Acquisition, Cenovus was deemed to have disposed of its pre-existing interest and reacquired it at fair value as required by IFRS 3. As at August 31, 2022, the carrying value of the pre-existing interest in SOSP’s decommissioning liabilities was
Description Of Major Assumptions Made Concerning Future Events Other Provisions Explanatory | Changes to the credit-adjusted risk-free rate or the inflation rate would have the following impact on the decommissioning liabilities:
| Sensitivity |  | 2022 |  | 2021
As at December 31, | Range |  | Increase |  | Decrease |  | Increase |  | Decrease
Credit-Adjusted Risk-Free Rate | ± one percent |  | (319) |  | 419 |  | (623) |  | 875
Inflation Rate | ± one percent |  | 419 |  | (320) |  | 873 |  | (625)

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