Statement Of Cash Flows [Abstract]
| Concept |
As at 2021-09-30 |
2020-10-01 to 2021-09-30 |
2019-10-01 to 2020-09-30 |
As at 2020-09-30 |
As at 2019-09-30 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Cash flows from (used in) operations | — |
1,513,000,000
EUR
|
2,771,900
EUR
|
— | — |
| Dividends received, classified as operating activities | — |
142,000,000
EUR
|
71,000,000
EUR
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
1,055,000,000
EUR
|
6,893,000,000
EUR
|
— | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
53,000,000
EUR
|
408,000,000
EUR
|
— | — |
| Proceeds from sales of other long-term assets, classified as investing activities | — |
5,672,000,000
EUR
|
791,000,000
EUR
|
— | — |
| Purchase of other long-term assets, classified as investing activities | — |
210,000,000
EUR
|
886,000,000
EUR
|
— | — |
| Cash flows from (used in) investing activities | — |
7,047,000,000
EUR
|
1,618,000,000
EUR
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||
| Payments from changes in ownership interests in subsidiaries that do not result in loss of control | — |
–
EUR
|
16,000,000
EUR
|
— | — |
| Proceeds from issuing shares | — |
5,425,000,000
EUR
|
71,000,000
EUR
|
— | — |
| Payments to acquire or redeem entity's shares | — |
17,000,000
EUR
|
10,000,000
EUR
|
— | — |
| Proceeds from borrowings, classified as financing activities | — |
8,555,000,000
EUR
|
3,372,400
EUR
|
— | — |
| Repayments of borrowings, classified as financing activities | — |
1,839,200
EUR
|
814,000,000
EUR
|
— | — |
| Payments of lease liabilities, classified as financing activities | — |
5,872,000,000
EUR
|
6,124,000,000
EUR
|
— | — |
| Interest paid, classified as financing activities | — |
4,048,000,000
EUR
|
2,519,000,000
EUR
|
— | — |
| Cash flows from (used in) financing activities | — |
2,335,000,000
EUR
|
2,112,500
EUR
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
3,198,000,000
EUR
|
4,976,000,000
EUR
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
332,000,000
EUR
|
170,000,000
EUR
|
— | — |
| Cash and cash equivalents |
1,583,900
EUR
|
— | — |
1,233,100
EUR
|
1,747,600
EUR
|