Statement Of Changes In Equity [Abstract]

Altareit - Filing #5984459

Concept	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	2024-01-01 to 2024-12-31	2024-01-01 to 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	2023-01-01 to 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	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
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	26,000,000 EUR	339,000,000 EUR	—	7,171,000,000 EUR	—	—	6,383,000,000 EUR	—	763,000,000 EUR	7,510,000,000 EUR	—	8,071,000,000 EUR	—	—	306,000,000 EUR	—	26,000,000 EUR	7,765,000,000 EUR	—	6,978,000,000 EUR	—	763,000,000 EUR	1 145,0 EUR	450,000,000 EUR	26,000,000 EUR	1 100,0 EUR	763,000,000 EUR	1 021,0 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	610,000,000 EUR	– EUR	—	—	115,000,000 EUR	—	495,000,000 EUR	– EUR	—	610,000,000 EUR	—	—	3,259,000,000 EUR	—	3,256,000,000 EUR	4,000,000 EUR	—	– EUR	—	—	– EUR	—	3,256,000,000 EUR	—	—	—	—	—	—	—
Comprehensive income	599,000,000 EUR	– EUR	—	—	115,000,000 EUR	—	484,000,000 EUR	– EUR	—	599,000,000 EUR	—	—	3,254,000,000 EUR	—	3,250,000,000 EUR	4,000,000 EUR	—	– EUR	—	—	– EUR	—	3,250,000,000 EUR	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	(0,0) EUR	– EUR	—	—	79,000,000 EUR	—	79,000,000 EUR	– EUR	—	(0,0) EUR	—	—	141,000,000 EUR	—	– EUR	141,000,000 EUR	—	– EUR	—	—	– EUR	—	– EUR	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	5,000,000 EUR	0 EUR	—	—	1,000,000 EUR	—	4,000,000 EUR	– EUR	—	5,000,000 EUR	—	—	7,000,000 EUR	—	7,000,000 EUR	0 EUR	—	0 EUR	—	—	0 EUR	—	7,000,000 EUR	—	—	—	—	—	—	—
Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity	– EUR	– EUR	—	—	– EUR	—	– EUR	– EUR	—	– EUR	—	—	3,000,000 EUR	—	2,000,000 EUR	1,000,000 EUR	—	– EUR	—	—	– EUR	—	2,000,000 EUR	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	2,000,000 EUR	– EUR	—	—	– EUR	—	2,000,000 EUR	– EUR	—	2,000,000 EUR	—	—	8,000,000 EUR	—	8,000,000 EUR	– EUR	—	– EUR	—	—	– EUR	—	8,000,000 EUR	—	—	—	—	—	—	—
Increase (decrease) in equity	1,000,000 EUR	– EUR	—	—	0 EUR	—	1,000,000 EUR	– EUR	—	1,000,000 EUR	—	—	0 EUR	—	0 EUR	0 EUR	—	– EUR	—	—	– EUR	—	0 EUR	—	—	—	—	—	—	—