Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
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 |
As at 2021-12-31 |
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 |
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 |
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 |
As at 2020-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — | — |
65,000,000
EUR
|
— |
196,000,000
EUR
|
— |
456,000,000
EUR
|
— |
17,000,000
EUR
|
1 472
EUR
|
— | — |
609,000,000
EUR
|
6 402
EUR
|
3 925
EUR
|
— | — |
54,000,000
EUR
|
315,000,000
EUR
|
— | — | — | — | — |
3 511
EUR
|
— | — |
234,000,000
EUR
|
43,000,000
EUR
|
— |
6 177
EUR
|
22,000,000
EUR
|
609,000,000
EUR
|
1 471
EUR
|
— |
58,000,000
EUR
|
— | — |
214,000,000
EUR
|
26,000,000
EUR
|
6 374
EUR
|
— |
1 473
EUR
|
— |
422,000,000
EUR
|
— |
3 614
EUR
|
— | — |
624,000,000
EUR
|
55,000,000
EUR
|
54,000,000
EUR
|
— | — |
5 828
EUR
|
69,000,000
EUR
|
1 521
EUR
|
145,000,000
EUR
|
-
EUR
|
45,000,000
EUR
|
322,000,000
EUR
|
338,000,000
EUR
|
1 521
EUR
|
145,000,000
EUR
|
28,000,000
EUR
|
5 783
EUR
|
338,000,000
EUR
|
-
EUR
|
28,000,000
EUR
|
-
EUR
|
322,000,000
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
3 556
EUR
|
815,000,000
EUR
|
45,000,000
EUR
|
-
EUR
|
69,000,000
EUR
|
3 511
EUR
|
815,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
-
EUR
|
-
EUR
|
— |
456,000,000
EUR
|
— |
-
EUR
|
— |
456,000,000
EUR
|
— | — |
-
EUR
|
0
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
4,000,000
EUR
|
-
EUR
|
-
EUR
|
230,000,000
EUR
|
— |
-
EUR
|
234,000,000
EUR
|
— | — |
-
EUR
|
— | — | — | — |
-
EUR
|
— |
-
EUR
|
422,000,000
EUR
|
— | — | — |
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
422,000,000
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
-
EUR
|
250,000,000
EUR
|
— |
269,000,000
EUR
|
— |
519,000,000
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
— | — |
101,000,000
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
420,000,000
EUR
|
— |
521,000,000
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — | — | — |
-
EUR
|
— |
359,000,000
EUR
|
482,000,000
EUR
|
— | — | — |
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— |
123,000,000
EUR
|
-
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
-
EUR
|
250,000,000
EUR
|
— |
725,000,000
EUR
|
— |
519,000,000
EUR
|
— |
456,000,000
EUR
|
— | — |
-
EUR
|
0
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
— | — |
101,000,000
EUR
|
4,000,000
EUR
|
-
EUR
|
-
EUR
|
190,000,000
EUR
|
— |
521,000,000
EUR
|
234,000,000
EUR
|
— | — |
-
EUR
|
— | — | — | — |
-
EUR
|
— |
359,000,000
EUR
|
904,000,000
EUR
|
— | — | — |
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— |
123,000,000
EUR
|
422,000,000
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
-
EUR
|
-
EUR
|
— |
336,000,000
EUR
|
— |
335,000,000
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
1,000,000
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
0
EUR
|
— |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — | — | — |
-
EUR
|
— |
-
EUR
|
327,000,000
EUR
|
— | — | — |
-
EUR
|
— |
-
EUR
|
— |
2,000,000
EUR
|
— |
325,000,000
EUR
|
-
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
-
EUR
|
-
EUR
|
— |
4,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
4,000,000
EUR
|
— | — | — |
0
EUR
|
-
EUR
|
— | — |
-
EUR
|
0
EUR
|
-
EUR
|
-
EUR
|
0
EUR
|
— |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — | — | — |
0
EUR
|
— |
-
EUR
|
0
EUR
|
— | — | — |
0
EUR
|
— |
-
EUR
|
— |
0
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
-
EUR
|
-
EUR
|
— |
1,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — |
0
EUR
|
-
EUR
|
— | — | — |
-
EUR
|
1,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
-
EUR
|
2,000,000
EUR
|
17,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — |
15,000,000
EUR
|
— | — | — | — |
-
EUR
|
— |
-
EUR
|
239,000,000
EUR
|
— | — | — |
-
EUR
|
— |
48,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — |
191,000,000
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
153,000,000
EUR
|
-
EUR
|
— |
161,000,000
EUR
|
— |
4,000,000
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — | — |
4,000,000
EUR
|
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
11,000,000
EUR
|
-
EUR
|
10,000,000
EUR
|
— |
4,000,000
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — | — | — |
3,000,000
EUR
|
— |
-
EUR
|
253,000,000
EUR
|
— | — | — |
14,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— |
17,000,000
EUR
|
-
EUR
|
— | — | — |
-
EUR
|
284,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |