Analysis Of Income And Expense [Abstract]

Bolloré SE - Filing #880402

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Analysis of income and expense [abstract]
Revenue [abstract]
Revenue	—	—	—	—	—	—	—	—	—	19 771,5 EUR	—	16 687,0 EUR	—	—	—	—	—	—	—	—	—	—
Material income and expense [abstract]
Profit (loss) from continuing operations attributable to non-controlling interests	—	—	—	—	—	—	—	—	—	2,420,000,000 EUR	—	1,973,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Other finance income	—	—	—	—	—	—	—	—	—	5,032,000,000 EUR	—	5,808,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Other finance cost	—	—	—	—	—	—	—	—	—	5,198,000,000 EUR	—	4,226,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Expenses by nature [abstract]
Classes of employee benefits expense [abstract]
Employee benefits expense	—	—	—	—	—	—	—	—	—	3 947,0 EUR	—	3 644,0 EUR	—	—	—	—	—	—	—	—	—	—
Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract]
Depreciation and amortisation expense [abstract]
Depreciation and amortisation expense	—	—	—	—	—	—	—	—	—	1 174,2 EUR	—	1 262,5 EUR	—	—	—	—	—	—	—	—	—	—
Disclosure of attribution of expenses by nature to their function [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of attribution of expenses by nature to their function [abstract]
Disclosure of attribution of expenses by nature to their function [line items]
Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract]
Share of profit (loss) of associates and joint ventures accounted for using equity method	—	—	—	—	—	—	—	—	—	5,827,000,000 EUR	—	320,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Share of other comprehensive income of associates and joint ventures accounted for using equity method, net of tax [abstract]
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax	—	—	—	—	—	—	—	—	—	724,000,000 EUR	—	2,674,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Income tax relating to components of other comprehensive income [abstract]
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss	—	—	—	—	—	—	—	—	—	240,000,000 EUR	—	304,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss	—	—	—	—	—	—	—	—	—	- EUR	—	- EUR	—	—	—	—	—	—	—	—	—	—
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	14 696,6 EUR	- EUR	9 032,5 EUR	- EUR	114,000,000 EUR	2,224,000,000 EUR	2 739,7 EUR	30,000,000 EUR	- EUR	23 729,1 EUR	6 062,0 EUR	188,000,000 EUR	20,000,000 EUR	- EUR	4,256,000,000 EUR	407,000,000 EUR	766,000,000 EUR	- EUR	4,119,000,000 EUR	1,203,000,000 EUR	- EUR	1,015,000,000 EUR
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	—	—	—	9 032,5 EUR	—	1,015,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract]
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	—	—	—	14 696,6 EUR	—	1,203,000,000 EUR	—	—	—	—	—	—	—	—	—	—