Analysis Of Income And Expense [Abstract]
| Concept |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2019-04-01 to 2020-03-31 |
2019-04-01 to 2020-03-31 |
2019-04-01 to 2020-03-31 |
2019-04-01 to 2020-03-31 |
2019-04-01 to 2020-03-31 |
2019-04-01 to 2020-03-31 |
2019-04-01 to 2020-03-31 |
2019-04-01 to 2020-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||
| Revenue [abstract] | ||||||||||||||||
| Revenue | — | — | — | — | — |
9,930,700
EUR
|
— | — | — | — | — | — | — | — |
9,581,000
EUR
|
— |
| Material income and expense [abstract] | ||||||||||||||||
| Finance income (cost) | — | — | — | — | — |
9,000,000
EUR
|
— | — | — | — | — | — | — | — |
22,000,000
EUR
|
— |
| Expenses by nature [abstract] | ||||||||||||||||
| Classes of employee benefits expense [abstract] | ||||||||||||||||
| Employee benefits expense | — | — | — | — | — |
1,462,300
EUR
|
— | — | — | — | — | — | — | — |
1,339,700
EUR
|
— |
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||||||||||||
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss | — | — | — | — | — |
3,269,000,000
EUR
|
— | — | — | — | — | — | — | — |
2,952,000,000
EUR
|
— |
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations | — | — | — | — | — |
2,000,000
EUR
|
— | — | — | — | — | — | — | — |
7,000,000
EUR
|
— |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — | — | — | — | — |
35,000,000
EUR
|
— | — | — | — | — | — | — | — |
522,000,000
EUR
|
— |
| Share of other comprehensive income of associates and joint ventures accounted for using equity method, net of tax [abstract] | ||||||||||||||||
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax | — | — | — | — | — |
114,000,000
EUR
|
— | — | — | — | — | — | — | — |
129,000,000
EUR
|
— |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income |
2,000,000
EUR
|
130,000,000
EUR
|
41,000,000
EUR
|
4,153,000,000
EUR
|
92,000,000
EUR
|
3,977,000,000
EUR
|
7,000,000
EUR
|
3,970,000,000
EUR
|
199,000,000
EUR
|
5,000,000
EUR
|
25,000,000
EUR
|
4,310,000,000
EUR
|
4,402,000,000
EUR
|
125,000,000
EUR
|
4,407,000,000
EUR
|
7,000,000
EUR
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — |
3,970,000,000
EUR
|
— | — | — | — | — | — | — | — |
4,402,000,000
EUR
|
— |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — |
7,000,000
EUR
|
— | — | — | — | — | — | — | — |
5,000,000
EUR
|
— |