CAPITAL STRUCTURE, FINANCIAL RISK AND RELATED ITEMS - Capital Management (Details) kr in Millions	12 Months Ended
Dec. 31, 2019 DKK (kr) item	Dec. 31, 2018 DKK (kr)
Disclosure of credit risk exposure [line items]
Number of External Investment Managers \| item	2
Cash position from partnership collaboration income \| kr	kr 10,971	kr 6,106

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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