Statement Of Changes In Equity [Abstract]
| Concept |
As at 2023-09-30 |
2022-10-01 to 2023-09-30 |
As at 2023-09-30 |
2022-10-01 to 2023-09-30 |
As at 2023-09-30 |
As at 2023-09-30 |
2022-10-01 to 2023-09-30 |
As at 2023-09-30 |
As at 2023-09-30 |
As at 2023-09-30 |
2022-10-01 to 2023-09-30 |
2022-10-01 to 2023-09-30 |
2022-10-01 to 2023-09-30 |
As at 2023-09-30 |
2022-10-01 to 2023-09-30 |
As at 2023-09-30 |
2022-10-01 to 2023-09-30 |
As at 2023-09-30 |
As at 2023-09-30 |
2022-10-01 to 2023-09-30 |
2022-10-01 to 2023-09-30 |
As at 2023-09-30 |
As at 2023-09-30 |
2022-10-01 to 2023-09-30 |
2022-10-01 to 2023-09-30 |
2022-10-01 to 2023-09-30 |
As at 2022-09-30 |
2021-10-01 to 2022-09-30 |
As at 2022-09-30 |
As at 2022-09-30 |
As at 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
As at 2022-09-30 |
As at 2022-09-30 |
As at 2022-09-30 |
As at 2022-09-30 |
As at 2022-09-30 |
As at 2022-09-30 |
As at 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
As at 2022-09-30 |
As at 2022-09-30 |
As at 2021-09-30 |
As at 2021-09-30 |
As at 2021-09-30 |
As at 2021-09-30 |
As at 2021-09-30 |
As at 2021-09-30 |
As at 2021-09-30 |
As at 2021-09-30 |
As at 2021-09-30 |
As at 2021-09-30 |
As at 2021-09-30 |
As at 2021-09-30 |
As at 2021-09-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity |
211,000,000
EUR
|
— |
989,000,000
EUR
|
— |
3,000,000
EUR
|
1,965,000
EUR
|
— |
3,106,000
EUR
|
11,000,000
EUR
|
2,011,000
EUR
|
— | — | — |
363,000,000
EUR
|
— |
4,754,000
EUR
|
— |
2,022,000
EUR
|
1,000,000
EUR
|
— | — |
64,000,000
EUR
|
9,000,000
EUR
|
— | — | — |
62,000,000
EUR
|
— |
9,000,000
EUR
|
2,406,000
EUR
|
5,000,000
EUR
|
— | — | — | — | — | — | — |
2,365,000
EUR
|
2,344,000
EUR
|
2,774,000
EUR
|
21,000,000
EUR
|
363,000,000
EUR
|
221,000,000
EUR
|
203,000,000
EUR
|
— | — | — | — | — |
0
EUR
|
4,754,000
EUR
|
1,000,000
EUR
|
5,048,000
EUR
|
4,000,000
EUR
|
938,000,000
EUR
|
21,000,000
EUR
|
1,854,000
EUR
|
3,557,000
EUR
|
1,875,000
EUR
|
2,231,000
EUR
|
363,000,000
EUR
|
489,000,000
EUR
|
106,000,000
EUR
|
9,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
439,000,000
EUR
|
— |
0
EUR
|
— | — |
439,000,000
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — |
439,000,000
EUR
|
0
EUR
|
— | — |
0
EUR
|
0
EUR
|
439,000,000
EUR
|
— |
0
EUR
|
— | — | — |
0
EUR
|
334,000,000
EUR
|
3,000,000
EUR
|
0
EUR
|
334,000,000
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — |
334,000,000
EUR
|
331,000,000
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income | — |
774,000,000
EUR
|
— |
1,000,000
EUR
|
— | — |
774,000,000
EUR
|
— | — | — |
0
EUR
|
768,000,000
EUR
|
0
EUR
|
— |
9,000,000
EUR
|
— |
1,000,000
EUR
|
— | — |
775,000,000
EUR
|
0
EUR
|
— | — |
2,000,000
EUR
|
0
EUR
|
0
EUR
|
— |
1,000,000
EUR
|
— | — | — |
0
EUR
|
823,000,000
EUR
|
0
EUR
|
0
EUR
|
823,000,000
EUR
|
0
EUR
|
716,000,000
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
824,000,000
EUR
|
150,000,000
EUR
|
42,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income | — |
335,000,000
EUR
|
— |
1,000,000
EUR
|
— | — |
335,000,000
EUR
|
— | — | — |
0
EUR
|
768,000,000
EUR
|
1,000,000
EUR
|
— |
9,000,000
EUR
|
— |
1,000,000
EUR
|
— | — |
336,000,000
EUR
|
0
EUR
|
— | — |
2,000,000
EUR
|
0
EUR
|
439,000,000
EUR
|
— |
1,000,000
EUR
|
— | — | — |
0
EUR
|
490,000,000
EUR
|
3,000,000
EUR
|
0
EUR
|
490,000,000
EUR
|
0
EUR
|
716,000,000
EUR
|
— | — | — | — | — | — | — |
334,000,000
EUR
|
493,000,000
EUR
|
150,000,000
EUR
|
42,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Issue of equity | — |
0
EUR
|
— |
0
EUR
|
— | — |
0
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — |
0
EUR
|
0
EUR
|
— | — |
0
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
3,000,000
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
3,000,000
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
0
EUR
|
— |
0
EUR
|
— | — |
0
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
6,000,000
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — |
6,000,000
EUR
|
0
EUR
|
— | — |
0
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
7,000,000
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
7,000,000
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
0
EUR
|
— |
0
EUR
|
— | — |
0
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — |
0
EUR
|
0
EUR
|
— | — |
0
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
294,000,000
EUR
|
294,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — | — |
159,000,000
EUR
|
0
EUR
|
136,000,000
EUR
|
2,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — |
2,000,000
EUR
|
— |
0
EUR
|
— | — |
2,000,000
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
3,000,000
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — |
0
EUR
|
0
EUR
|
— | — |
0
EUR
|
0
EUR
|
2,000,000
EUR
|
— |
0
EUR
|
— | — | — |
0
EUR
|
1,000,000
EUR
|
1,000,000
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — |
1,000,000
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |