Statement Of Changes In Equity [Abstract]

Koninklijke Heijmans N.V. - Filing #5829982

Concept	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	1,152,000,000 EUR	—	—	—	3,133,000,000 EUR	83,000,000 EUR	—	—	2,000,000 EUR	4,630,000,000 EUR	—	640,000,000 EUR	900,000,000 EUR	640,000,000 EUR	—	—	—	794,000,000 EUR	3,836,000,000 EUR	597,000,000 EUR	—	—	3,002,000,000 EUR	—	81,000,000 EUR	—	2,000,000 EUR	3,170,000,000 EUR	436,000,000 EUR	596,000,000 EUR	603,000,000 EUR	3,000,000 EUR	2,667,000,000 EUR	71,000,000 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	900,000,000 EUR	—	EUR	EUR	EUR	—	—	900,000,000 EUR	EUR	—	—	0 EUR	—	—	—	597,000,000 EUR	597,000,000 EUR	EUR	—	—	—	EUR	EUR	—	EUR	—	EUR	—	—	—	—	—	—	—	—
Other comprehensive income	EUR	—	EUR	EUR	EUR	—	—	0 EUR	EUR	—	—	0 EUR	—	—	—	37,000,000 EUR	EUR	37,000,000 EUR	—	—	—	EUR	EUR	—	EUR	—	EUR	—	—	—	—	—	—	—	—
Comprehensive income	900,000,000 EUR	—	EUR	EUR	EUR	—	—	900,000,000 EUR	EUR	—	—	0 EUR	—	—	—	560,000,000 EUR	597,000,000 EUR	37,000,000 EUR	—	—	—	EUR	EUR	—	EUR	—	EUR	—	—	—	—	—	—	—	—
Issue of equity	EUR	—	EUR	EUR	EUR	—	—	EUR	EUR	—	—	EUR	—	—	—	235,000,000 EUR	EUR	EUR	—	—	—	EUR	228,000,000 EUR	—	7,000,000 EUR	—	EUR	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	EUR	—	239,000,000 EUR	2,000,000 EUR	131,000,000 EUR	—	—	106,000,000 EUR	EUR	—	—	EUR	—	—	—	128,000,000 EUR	EUR	EUR	—	—	—	238,000,000 EUR	107,000,000 EUR	—	3,000,000 EUR	—	EUR	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	EUR	—	EUR	EUR	EUR	—	—	0 EUR	0 EUR	—	—	EUR	—	—	—	1,000,000 EUR	EUR	EUR	—	—	—	EUR	EUR	—	EUR	—	1,000,000 EUR	—	—	—	—	—	—	—	—
Increase (decrease) in equity	303,000,000 EUR	—	358,000,000 EUR	2,000,000 EUR	131,000,000 EUR	—	—	794,000,000 EUR	0 EUR	—	—	0 EUR	—	—	—	666,000,000 EUR	1,000,000 EUR	37,000,000 EUR	—	—	—	358,000,000 EUR	335,000,000 EUR	—	10,000,000 EUR	—	1,000,000 EUR	—	—	—	—	—	—	—	—