Statement Of Changes In Equity [Abstract]

Valneva SE - Filing #882968

Concept	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 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	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01	As at 2019-01-01
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	52 512 EUR	—	—	—	73 425 EUR	233 549 EUR	—	—	170 581 EUR	409 258 EUR	—	15 786 EUR	—	13 646 EUR	52 342 EUR	169 156 EUR	64 393 EUR	244 984 EUR	77 422 EUR	—	77 422 EUR	13 646 EUR	—	—	64 393 EUR	169 156 EUR	52 342 EUR	244 984 EUR	—	—	—	—	1 744 EUR	167 412 EUR	13 642 EUR	45 756 EUR	244 912 EUR	135 153 EUR	135 153 EUR	—	—	45 756 EUR	244 912 EUR	1 744 EUR	167 412 EUR	—	—	—	13 642 EUR	—	—	3 264 EUR	244 900 EUR	143 186 EUR	170 676 EUR	170 676 EUR	3 264 EUR	52 060 EUR	9 474 EUR	13 638 EUR	- EUR	244 900 EUR	- EUR	- EUR	133 712 EUR	- EUR	13 638 EUR	9 474 EUR	42 587 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	—	—	—	—	—	—	—	—	—	—	—	73 425 EUR	—	—	—	—	—	—	64 393 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1 744 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	—	—	—	—	—	—	—	—	2 672 EUR	—	—	—	—	—	—	2 360 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	644,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	2 672 EUR	76 097 EUR	- EUR	—	—	73 425 EUR	- EUR	—	—	- EUR	—	—	—	—	—	—	—	—	—	—	—	64 393 EUR	- EUR	—	—	—	—	2 360 EUR	- EUR	- EUR	62 033 EUR	—	—	—	—	—	—	—	644,000 EUR	1 100 EUR	—	—	—	—	—	1 744 EUR	- EUR	—	- EUR	- EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	—	209,000 EUR	209,000 EUR	- EUR	—	—	- EUR	- EUR	—	—	1,000 EUR	—	—	—	—	—	—	—	—	—	—	—	- EUR	- EUR	—	—	—	—	215,000 EUR	- EUR	- EUR	215,000 EUR	—	—	—	—	—	—	—	21,000 EUR	21,000 EUR	—	—	—	—	—	- EUR	- EUR	—	- EUR	- EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—