Statement Of Financial Position [Abstract]

Bouygues SA - Filing #883004

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 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	—	—	—	—	8 048 EUR	—	—	—	—	—	—	—	—	—	7 486 EUR	—	—	—	—	—	—	—
Right-of-use assets	—	—	—	—	1 741 EUR	—	—	—	—	—	—	—	—	—	1 668 EUR	—	—	—	—	—	—	—
Goodwill	—	—	—	—	7 446 EUR	—	—	—	—	—	—	—	—	—	7 232 EUR	—	—	—	—	—	—	—
Intangible assets other than goodwill	—	—	—	—	2 774 EUR	—	—	—	—	—	—	—	—	—	2 694 EUR	—	—	—	—	—	—	—
Investments accounted for using equity method	—	—	—	—	878,000,000 EUR	—	—	—	—	—	—	—	—	—	1 543 EUR	—	—	—	—	—	—	—
Deferred tax assets	—	—	—	—	292,000,000 EUR	—	—	—	—	—	—	—	—	—	334,000,000 EUR	—	—	—	—	—	—	—
Cash and cash equivalents	—	—	—	—	6 501 EUR	—	—	—	—	—	—	—	—	—	4 224 EUR	—	—	—	—	—	—	—
Assets	—	—	—	—	44,642,000,000 EUR	—	—	—	—	—	—	—	—	—	40,612,000,000 EUR	—	—	—	—	—	—	—
Equity and liabilities [abstract]
Equity [abstract]
Issued capital	—	—	—	—	383,000,000 EUR	—	—	—	—	—	—	—	—	—	381,000,000 EUR	—	—	—	—	—	—	—
Treasury shares	—	—	—	—	88,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity attributable to owners of parent	—	—	—	—	11,144,000,000 EUR	—	—	—	—	—	—	—	—	—	10,401,000,000 EUR	—	—	—	—	—	—	—
Non-controlling interests	—	—	—	—	1 645 EUR	—	—	—	—	—	—	—	—	—	1 471 EUR	—	—	—	—	—	—	—
Equity	88,000,000 EUR	2 825 EUR	5 213 EUR	3 306 EUR	12,789,000,000 EUR	112,000,000 EUR	11,144,000,000 EUR	1 645 EUR	1 471 EUR	10,401,000,000 EUR	2 771 EUR	4 727 EUR	3 256 EUR	353,000,000 EUR	11,872,000,000 EUR	2 749 EUR	5 146 EUR	2 737 EUR	1 403 EUR	10,461,000,000 EUR	11,864,000,000 EUR	171,000,000 EUR
Liabilities [abstract]
Deferred tax liabilities	—	—	—	—	344,000,000 EUR	—	—	—	—	—	—	—	—	—	283,000,000 EUR	—	—	—	—	—	—	—
Equity and liabilities	—	—	—	—	44,642,000,000 EUR	—	—	—	—	—	—	—	—	—	40,612,000,000 EUR	—	—	—	—	—	—	—