Statement Of Changes In Equity [Abstract]

Fluxys Belgium SA - Filing #3156005

Concept	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 2021-12-31	As at 2021-12-31	As at 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	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 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 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	As at 2019-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	521,796 EUR	54,072 EUR	—	639,674 EUR	—	3,496 EUR	639,674 EUR	0 EUR	38,000 EUR	60,272 EUR	—	—	—	542,537 EUR	0 EUR	—	639,038 EUR	60,272 EUR	—	0 EUR	—	17,881 EUR	54,072 EUR	38,000 EUR	639,038 EUR	—	—	662,677 EUR	0 EUR	54,072 EUR	12,348 EUR	38,000 EUR	662,677 EUR	560,643 EUR	0 EUR	60,272 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	—	—	—	—	—	—	—	—	—	75,521 EUR	—	73,237 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	—	—	—	—	—	—	21,377 EUR	—	5,533 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	—	96,898 EUR	—	21,377 EUR	—	—	—	—	—	96,898 EUR	75,521 EUR	67,704 EUR	—	—	5,533 EUR	—	—	73,237 EUR	—	0 EUR	—	—	—	—	0 EUR	67,704 EUR	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	—	96,262 EUR	—	—	—	—	—	—	—	96,262 EUR	96,262 EUR	91,343 EUR	—	—	—	—	—	91,343 EUR	—	—	—	—	—	—	—	91,343 EUR	—	—	—	—	—	—	—	—	—