Statement Of Comprehensive Income [Abstract]

H. Lundbeck A - Filing #5889908

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31
Statement of comprehensive income [abstract]
Profit (loss)	- DKK	3,143,000,000 DKK	- DKK	- DKK	3,143,000,000 DKK	- DKK	2,290,000,000 DKK	- DKK	2,290,000,000 DKK	- DKK
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract]
Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans	—	1,000,000 DKK	—	—	—	—	24,000,000 DKK	—	—	—
Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract]
Hedges of net investment in foreign operations [abstract]
Gains (losses) on hedges of net investments in foreign operations, before tax	—	- DKK	—	—	—	—	17,000,000 DKK	—	—	—
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract]
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss	—	- DKK	—	—	—	—	4,000,000 DKK	—	—	—
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract]
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss	—	64,000,000 DKK	—	—	—	—	23,000,000 DKK	—	—	—
Other comprehensive income	- DKK	509,000,000 DKK	271,000,000 DKK	779,000,000 DKK	1,000,000 DKK	- DKK	442,000,000 DKK	93,000,000 DKK	20,000,000 DKK	329,000,000 DKK
Comprehensive income	- DKK	3,652,000,000 DKK	271,000,000 DKK	779,000,000 DKK	3,144,000,000 DKK	- DKK	1,848,000,000 DKK	93,000,000 DKK	2,270,000,000 DKK	329,000,000 DKK