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v3.22.1

Risk Management - Summary of Principal Assumptions on Provisions Valuation (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
PCBs |  |
Disclosure of Principal assumptions on provisions valuation [Line Items] |  |
Inflation rate | 1.37% | 1.06%
Discount rate | 1.88% | 1.83%
Nuclear plants |  |
Disclosure of Principal assumptions on provisions valuation [Line Items] |  |
Inflation rate | 1.41% | 1.07%
Discount rate | 2.20% | 2.20%
Spent fuel |  |
Disclosure of Principal assumptions on provisions valuation [Line Items] |  |
Inflation rate | 2.93% | 2.93%
Discount rate | 4.49% | 4.49%

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