Statement Of Cash Flows [Abstract]
| 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] | |||||
| Income taxes paid (refund), classified as operating activities | — |
914,000,000
EUR
|
— |
602,000,000
EUR
|
— |
| Cash flows from (used in) operating activities | — |
6,415,000,000
EUR
|
— |
6,096,000,000
EUR
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from (used in) investing activities | — |
2,715,000,000
EUR
|
— |
2,464,000,000
EUR
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from changes in ownership interests in subsidiaries that do not result in loss of control | — |
—
EUR
|
— |
—
EUR
|
— |
| Payments to acquire or redeem entity's shares | — |
2,211,000,000
EUR
|
— |
—
EUR
|
— |
| Interest paid, classified as financing activities | — |
314,000,000
EUR
|
— |
316,000,000
EUR
|
— |
| Cash flows from (used in) financing activities | — |
3,515,000,000
EUR
|
— |
892,000,000
EUR
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
185,000,000
EUR
|
— |
2,740,000,000
EUR
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
—
EUR
|
— |
171,000,000
EUR
|
— |
| Cash and cash equivalents |
4,946,000,000
EUR
|
— |
4,762,000,000
EUR
|
— |
2,192,000,000
EUR
|