Statement Of Cash Flows [Abstract]

SES FDR - Filing #2817363

Concept	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2019-12-31
Statement of cash flows [abstract]
Cash flows from (used in) operating activities [abstract]
Cash flows from (used in) operating activities	—	1,294,000,000 EUR	—	1,049,000,000 EUR	—
Cash flows from (used in) investing activities [abstract]
Purchase of property, plant and equipment, classified as investing activities	—	243,000,000 EUR	—	171,000,000 EUR	—
Purchase of intangible assets, classified as investing activities	—	37,000,000 EUR	—	39,000,000 EUR	—
Other inflows (outflows) of cash, classified as investing activities	—	3,000,000 EUR	—	7,000,000 EUR	—
Cash flows from (used in) investing activities	—	283,000,000 EUR	—	217,000,000 EUR	—
Cash flows from (used in) financing activities [abstract]
Payments from changes in ownership interests in subsidiaries that do not result in loss of control	—	- EUR	—	7,000,000 EUR	—
Payments to acquire or redeem entity's shares	—	119,000,000 EUR	—	10,000,000 EUR	—
Proceeds from borrowings, classified as financing activities	—	159,000,000 EUR	—	395,000,000 EUR	—
Repayments of borrowings, classified as financing activities	—	614,000,000 EUR	—	785,000,000 EUR	—
Payments of lease liabilities, classified as financing activities	—	14,000,000 EUR	—	15,000,000 EUR	—
Interest paid, classified as financing activities	—	121,000,000 EUR	—	152,000,000 EUR	—
Cash flows from (used in) financing activities	—	1,127,000,000 EUR	—	813,000,000 EUR	—
Effect of exchange rate changes on cash and cash equivalents [abstract]
Effect of exchange rate changes on cash and cash equivalents	—	3,000,000 EUR	—	12,000,000 EUR	—
Increase (decrease) in cash and cash equivalents after effect of exchange rate changes	—	113,000,000 EUR	—	7,000,000 EUR	—
Cash and cash equivalents	1,049,000,000 EUR	—	1,162,000,000 EUR	—	1,155,000,000 EUR