Statement Of Changes In Equity [Abstract]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 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 |
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 |
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 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||
| Equity |
13,932,000,000
EUR
|
— | — | — | — |
2 567
EUR
|
5 637
EUR
|
3 176
EUR
|
886,000,000
EUR
|
1 720
EUR
|
54,000,000
EUR
|
12,212,000,000
EUR
|
— | — | — |
88,000,000
EUR
|
— | — | — | — | — |
2 825
EUR
|
5 213
EUR
|
3 306
EUR
|
12,789,000,000
EUR
|
— |
112,000,000
EUR
|
11,144,000,000
EUR
|
1 645
EUR
|
— |
1 471
EUR
|
2 771
EUR
|
4 727
EUR
|
3 256
EUR
|
10,401,000,000
EUR
|
353,000,000
EUR
|
11,872,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — |
1 131
EUR
|
158,000,000
EUR
|
973,000,000
EUR
|
— | — | — | — | — | — | — | — |
973,000,000
EUR
|
180,000,000
EUR
|
— | — | — |
1 125
EUR
|
— |
1 125
EUR
|
— | — | — | — | — | — | — | — |
1 305
EUR
|
— | — | — | — | — | — | — |
| Other comprehensive income | — | — |
1 018
EUR
|
20,000,000
EUR
|
— | — | — | — | — | — | — | — |
998,000,000
EUR
|
998,000,000
EUR
|
12,000,000
EUR
|
— | — | — | — | — |
241,000,000
EUR
|
— | — | — | — |
241,000,000
EUR
|
— | — | — |
253,000,000
EUR
|
— | — | — | — | — | — | — |
| Comprehensive income | — | — |
2 149
EUR
|
178,000,000
EUR
|
973,000,000
EUR
|
— | — | — | — | — | — | — |
998,000,000
EUR
|
1 971
EUR
|
192,000,000
EUR
|
— | — | — |
1 125
EUR
|
— |
1 366
EUR
|
— | — | — | — |
241,000,000
EUR
|
— | — | — |
1 558
EUR
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — |
777,000,000
EUR
|
97,000,000
EUR
|
680,000,000
EUR
|
— | — | — | — | — | — | — | — |
680,000,000
EUR
|
91,000,000
EUR
|
— | — | — |
647,000,000
EUR
|
— |
647,000,000
EUR
|
— | — | — | — | — | — | — | — |
738,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — | — |
2,000,000
EUR
|
7,000,000
EUR
|
9,000,000
EUR
|
— | — | — | — | — | — | — | — |
9,000,000
EUR
|
72,000,000
EUR
|
— | — |
1,000,000
EUR
|
56,000,000
EUR
|
1,000,000
EUR
|
56,000,000
EUR
|
— | — | — | — | — | — | — | — |
128,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — |
224,000,000
EUR
|
230,000,000
EUR
|
— |
6,000,000
EUR
|
— | — | — | — | — | — | — | — |
230,000,000
EUR
|
— | — |
88,000,000
EUR
|
— |
5,000,000
EUR
|
— |
93,000,000
EUR
|
— | — | — | — | — | — | — | — |
93,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — | — |
16,000,000
EUR
|
1,000,000
EUR
|
15,000,000
EUR
|
— | — | — | — | — | — | — | — |
15,000,000
EUR
|
— | — | — | — |
1,000,000
EUR
|
— |
1,000,000
EUR
|
— | — | — | — | — | — | — | — |
1,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — |
15,000,000
EUR
|
2,000,000
EUR
|
13,000,000
EUR
|
— | — | — | — | — | — | — | — |
13,000,000
EUR
|
1,000,000
EUR
|
— | — | — |
9,000,000
EUR
|
— |
9,000,000
EUR
|
— | — | — | — | — | — | — | — |
10,000,000
EUR
|
— | — | — | — | — | — | — |