Disclosure Of Fair Value Measurement [Text Block]

STRABAG SE - Filing #1078021

Concept	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 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31
Disclosure of fair value measurement [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of assets [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of assets [abstract]
Disclosure of fair value measurement of assets [line items]
Assets	—	—	12,225,768,000 EUR	—	—	—	—	—	—	—	—	—	—	—	12,134,441,000 EUR	—	—	—	—	—	—	—	—	—
Reconciliation of changes in fair value measurement, assets [abstract]
Disclosure of fair value measurement of equity [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of equity [abstract]
Disclosure of fair value measurement of equity [line items]
Equity	2,085,806,000 EUR	1,964,359,000 EUR	4,071,822,000 EUR	47,209,000 EUR	4,047,506,000 EUR	24,316,000 EUR	58,050,000 EUR	102,600,000 EUR	1,824,618,000 EUR	22,074,000 EUR	74,647,000 EUR	4,086,146,000 EUR	110,000,000 EUR	89,209,000 EUR	4,108,220,000 EUR	2,315,384,000 EUR	3,822,204,000 EUR	33,695,000 EUR	47,505,000 EUR	2,315,384,000 EUR	3,855,899,000 EUR	1,531,174,000 EUR	86,849,000 EUR	110,000,000 EUR
Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract]