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Capital Structure, Financial Risk and Related Items - Assets and Liabilities in Foreign Currency (Details) - DKK (kr) kr in Billions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Disclosure of credit risk exposure [line items] |  |
Central rate committed to maintain | 7.46 |
Positive fluctuation in exchange rate | 2.25% |
Negative fluctuation in exchange rate | (2.25%) |
United States of America, Dollars |  |
Disclosure of credit risk exposure [line items] |  |
Estimated impact for net profit before tax due to increase or decrease In exchange rate | kr 2.2 | kr 1.5

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