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Capital Structure, Financial Risk and Related Items - Fair Value Measurement - Other Investments (Details) - DKK (kr)
kr in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Collaboration Agreements    
Other investments kr 133 kr 371
Other investments    
Collaboration Agreements    
Transfer to Level 1 0  
Transfer to level 3 0  
Other investments | Net Book value    
Collaboration Agreements    
Fair value at beginning of period 371  
Fair value at end of period 133 371
Level 3 of fair value hierarchy [member] | Other investments | Net Book value    
Collaboration Agreements    
Fair value at beginning of period 27 14
Acquisitions 39 13
Fair value at end of period kr 66 kr 27