Statement Of Changes In Equity [Abstract]

Novonesis AS - Filing #1352055

Concept	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Decrease (increase) through tax on share-based payment transactions, equity	4,000,000 DKK	4,000,000 DKK	4,000,000 DKK	—	139,000,000 DKK	139,000,000 DKK	139,000,000 DKK
Purchase of treasury shares	—	—	—	—	500,000,000 DKK	500,000,000 DKK	500,000,000 DKK
Sale or issue of treasury shares	167,000,000 DKK	167,000,000 DKK	167,000,000 DKK	—	164,000,000 DKK	164,000,000 DKK	164,000,000 DKK
Reduction of issued capital	—	—	—	2,000,000 DKK	- DKK	- DKK	2,000,000 DKK