Statement Of Changes In Equity [Abstract]

Valneva SE - Filing #2813490

Concept	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	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	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	2020-01-01 to 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	As at 2020-12-31	2020-01-01 to 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
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	219 797 EUR	—	—	306 974 EUR	—	143 279 EUR	—	55 252 EUR	594 043 EUR	20 755 EUR	—	—	73 425 EUR	52 512 EUR	—	170 581 EUR	—	—	—	233 549 EUR	409 258 EUR	—	15 786 EUR	—	—	13 646 EUR	—	—	64 393 EUR	169 156 EUR	52 342 EUR	244 984 EUR	—	—	77 422 EUR	—	45 756 EUR	244 912 EUR	135 153 EUR	1 744 EUR	167 412 EUR	13 642 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	—	—	—	143 279 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	73 425 EUR	64 393 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	105,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2 672 EUR	2 360 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	— EUR	105,000 EUR	—	143 174 EUR	—	— EUR	—	—	—	143 279 EUR	— EUR	—	—	2 672 EUR	—	73 425 EUR	— EUR	— EUR	—	—	— EUR	—	76 097 EUR	62 033 EUR	—	— EUR	64 393 EUR	—	—	—	—	2 360 EUR	— EUR	—	— EUR	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	—	— EUR	— EUR	—	— EUR	—	— EUR	—	—	—	— EUR	— EUR	—	—	209,000 EUR	—	— EUR	— EUR	— EUR	—	—	1,000 EUR	—	209,000 EUR	215,000 EUR	—	— EUR	— EUR	—	—	—	—	215,000 EUR	— EUR	—	— EUR	—	—	—	—	—	—