Statement Of Financial Position [Abstract]

STRABAG SE - Filing #1078023

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
Statement of financial position [abstract]
Assets [abstract]
Property, plant and equipment	—	—	2.533.116 EUR	—	—	—	—	—	—	—	—	—	—	—	2.571.007 EUR	—	—	—	—	—	—	—	—	—
Goodwill	—	—	447,679 EUR	—	—	—	—	—	—	—	—	—	—	—	449,566 EUR	—	—	—	—	—	—	—	—	—
Investments accounted for using equity method	—	—	403,163 EUR	—	—	—	—	—	—	—	—	—	—	—	418,993 EUR	—	—	—	—	—	—	—	—	—
Investments in subsidiaries, joint ventures and associates reported in separate financial statements	—	—	195,388 EUR	—	—	—	—	—	—	—	—	—	—	—	187,638 EUR	—	—	—	—	—	—	—	—	—
Deferred tax assets	—	—	104,444 EUR	—	—	—	—	—	—	—	—	—	—	—	185,364 EUR	—	—	—	—	—	—	—	—	—
Cash and cash equivalents	—	—	2.963.251 EUR	—	—	—	—	—	—	—	—	—	—	—	2.856.954 EUR	—	—	—	—	—	—	—	—	—
Assets	—	—	12.225.768 EUR	—	—	—	—	—	—	—	—	—	—	—	12.134.441 EUR	—	—	—	—	—	—	—	—	—
Equity and liabilities [abstract]
Equity [abstract]
Issued capital	—	—	102,600 EUR	—	—	—	—	—	—	—	—	—	—	—	110,000 EUR	—	—	—	—	—	—	—	—	—
Non-controlling interests	—	—	24,316 EUR	—	—	—	—	—	—	—	—	—	—	—	22,074 EUR	—	—	—	—	—	—	—	—	—
Equity	2.085.806 EUR	1.964.359 EUR	4.071.822 EUR	47,209 EUR	4.047.506 EUR	24,316 EUR	58,050 EUR	102,600 EUR	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
Liabilities [abstract]
Deferred tax liabilities	—	—	104,063 EUR	—	—	—	—	—	—	—	—	—	—	—	61,291 EUR	—	—	—	—	—	—	—	—	—
Equity and liabilities	—	—	12.225.768 EUR	—	—	—	—	—	—	—	—	—	—	—	12.134.441 EUR	—	—	—	—	—	—	—	—	—