Statement Of Changes In Equity [Abstract]

STRABAG SE - Filing #998558

Concept	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	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	As at 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 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	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	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	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	65,682,000 EUR	—	—	4,409,360,000 EUR	—	2,657,841,000 EUR	—	—	18,443,000 EUR	—	—	102,600,000 EUR	51,668,000 EUR	4,390,917,000 EUR	115,000 EUR	1,747,941,000 EUR	—	—	4,025,243,000 EUR	—	—	79,326,000 EUR	—	—	—	—	22,392,000 EUR	1,935,488,000 EUR	102,600,000 EUR	59,977,000 EUR	4,002,851,000 EUR	—	—	18,260,000 EUR	2,085,806,000 EUR	—	2,085,806,000 EUR	2,067,758,000 EUR	4,071,822,000 EUR	47,209,000 EUR	103,399,000 EUR	4,047,506,000 EUR	24,316,000 EUR	58,050,000 EUR	102,600,000 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	633,394,000 EUR	– EUR	—	630,508,000 EUR	—	2,886,000 EUR	630,508,000 EUR	—	– EUR	– EUR	—	—	—	—	—	– EUR	– EUR	—	– EUR	480,129,000 EUR	—	472,454,000 EUR	7,675,000 EUR	– EUR	– EUR	—	—	—	—	—	– EUR	472,454,000 EUR	—	—	– EUR	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	3,659,000 EUR	13,821,000 EUR	—	3,755,000 EUR	—	96,000 EUR	– EUR	—	8,309,000 EUR	– EUR	—	—	—	—	—	– EUR	18,375,000 EUR	—	– EUR	87,661,000 EUR	—	– EUR	46,000 EUR	65,469,000 EUR	– EUR	—	—	—	—	—	24,073,000 EUR	87,615,000 EUR	—	—	1,927,000 EUR	—	—	—	—	—	—	—	—	—
Comprehensive income	—	637,053,000 EUR	13,821,000 EUR	—	634,263,000 EUR	—	2,790,000 EUR	630,508,000 EUR	—	8,309,000 EUR	– EUR	—	—	—	—	—	– EUR	18,375,000 EUR	—	– EUR	567,790,000 EUR	—	472,454,000 EUR	7,721,000 EUR	65,469,000 EUR	– EUR	—	—	—	—	—	24,073,000 EUR	560,069,000 EUR	—	—	1,927,000 EUR	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	203,137,000 EUR	– EUR	—	199,642,000 EUR	—	3,495,000 EUR	199,642,000 EUR	—	– EUR	– EUR	—	—	—	—	—	– EUR	– EUR	—	– EUR	214,694,000 EUR	—	205,200,000 EUR	9,494,000 EUR	– EUR	– EUR	—	—	—	—	—	– EUR	205,200,000 EUR	—	—	– EUR	—	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	—	0 EUR	177,000 EUR	—	0 EUR	—	– EUR	177,000 EUR	—	– EUR	– EUR	—	—	—	—	—	– EUR	– EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—