Statement Of Changes In Equity [Abstract]
| Concept |
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 |
2021-01-01 to 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 |
2021-01-01 to 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 |
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 |
2020-01-01 to 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 |
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 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 |
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 |
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 | — |
474,000,000
EUR
|
2,814,500
EUR
|
— | — | — |
2,978,800
EUR
|
— |
39,000,000
EUR
|
— |
2,978,400
EUR
|
244,000,000
EUR
|
— |
308,000,000
EUR
|
1,600,000,000
EUR
|
4,000,000
EUR
|
— | — | — |
2,582,300
EUR
|
35,000,000
EUR
|
247,000,000
EUR
|
— |
1,600,000,000
EUR
|
2,723,700
EUR
|
— | — |
380,000,000
EUR
|
197,000,000
EUR
|
244,000,000
EUR
|
— |
2,727,200
EUR
|
— | — | — | — |
2,633,700
EUR
|
6,000,000
EUR
|
1,600,000,000
EUR
|
2,646,300
EUR
|
6,000,000
EUR
|
-
EUR
|
45,000,000
EUR
|
-
EUR
|
244,000,000
EUR
|
2,634,300
EUR
|
45,000,000
EUR
|
-
EUR
|
126,000,000
EUR
|
126,000,000
EUR
|
2,518,500
EUR
|
-
EUR
|
126,000,000
EUR
|
570,000,000
EUR
|
244,000,000
EUR
|
570,000,000
EUR
|
77,000,000
EUR
|
77,000,000
EUR
|
-
EUR
|
1,600,000,000
EUR
|
2,646,900
EUR
|
-
EUR
|
2,531,100
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
11,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
2,565,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
— | — | — |
2,554,000,000
EUR
|
2,565,000,000
EUR
|
1,377,000,000
EUR
|
— | — | — |
-
EUR
|
— | — |
1,388,000,000
EUR
|
-
EUR
|
— | — | — |
-
EUR
|
— |
-
EUR
|
11,000,000
EUR
|
-
EUR
|
1,388,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
-
EUR
|
— | — |
208,000,000
EUR
|
-
EUR
|
453,000,000
EUR
|
— |
-
EUR
|
— |
111,000,000
EUR
|
— | — |
-
EUR
|
— | — | — |
453,000,000
EUR
|
134,000,000
EUR
|
258,000,000
EUR
|
— | — | — |
-
EUR
|
— | — |
186,000,000
EUR
|
170,000,000
EUR
|
— | — | — |
-
EUR
|
— |
242,000,000
EUR
|
-
EUR
|
-
EUR
|
258,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
11,000,000
EUR
|
— | — |
208,000,000
EUR
|
-
EUR
|
3,018,000,000
EUR
|
— |
-
EUR
|
— |
111,000,000
EUR
|
— | — |
-
EUR
|
— | — | — |
3,007,000,000
EUR
|
2,699,000,000
EUR
|
1,635,000,000
EUR
|
— | — | — |
-
EUR
|
— | — |
1,574,000,000
EUR
|
170,000,000
EUR
|
— | — | — |
-
EUR
|
— |
242,000,000
EUR
|
11,000,000
EUR
|
-
EUR
|
1,646,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
729,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
— | — | — |
729,000,000
EUR
|
729,000,000
EUR
|
539,000,000
EUR
|
— | — | — |
-
EUR
|
— | — |
539,000,000
EUR
|
-
EUR
|
— | — | — |
-
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
539,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
55,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
— | — | — |
55,000,000
EUR
|
55,000,000
EUR
|
77,000,000
EUR
|
— | — | — |
-
EUR
|
— | — |
37,000,000
EUR
|
-
EUR
|
— | — | — |
-
EUR
|
— |
-
EUR
|
40,000,000
EUR
|
-
EUR
|
37,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
-
EUR
|
— | — |
-
EUR
|
94,000,000
EUR
|
94,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
— | — | — |
94,000,000
EUR
|
-
EUR
|
244,000,000
EUR
|
— | — | — |
244,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — | — |
-
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
244,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
20,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
— | — | — |
20,000,000
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |