Disclosure Of Fair Value Measurement [Text Block]

STRABAG SE - Filing #1128561

Concept	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	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31
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	—	—	—	—	—	—	12.134.441 EUR	—	—	—	—	—	12.250.811 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	1.824.618 EUR	22,074 EUR	74,647 EUR	4.086.146 EUR	110,000 EUR	89,209 EUR	4.108.220 EUR	2.315.384 EUR	3.822.204 EUR	33,695 EUR	47,505 EUR	2.315.384 EUR	3.855.899 EUR	1.531.174 EUR	86,849 EUR	110,000 EUR	55,418 EUR	33,088 EUR	3.620.685 EUR	2.315.384 EUR	3.653.773 EUR	76,076 EUR	110,000 EUR	1.326.795 EUR
Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract]