Analysis Of Income And Expense [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||
| Revenue [abstract] | ||||||||||||||
| Revenue from rendering of services | — |
587,000,000
EUR
|
— | — | — | — | — | — | — |
620,000,000
EUR
|
— | — | — | — |
| Revenue from construction contracts | — |
2 466,3
EUR
|
— | — | — | — | — | — | — |
2 418,5
EUR
|
— | — | — | — |
| Interest income | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Interest income on cash and cash equivalents | — |
920,000,000
EUR
|
— | — | — | — | — | — | — |
399,000,000
EUR
|
— | — | — | — |
| Material income and expense [abstract] | ||||||||||||||
| Write-downs (reversals of write-downs) of inventories [abstract] | ||||||||||||||
| Write-downs (reversals of write-downs) of inventories | — |
156,000,000
EUR
|
— | — | — | — | — | — | — |
2,426,000,000
EUR
|
— | — | — | — |
| Impairment loss (reversal of impairment loss) on trade receivables [abstract] | ||||||||||||||
| Impairment loss (reversal of impairment loss) recognised in profit or loss, trade receivables | — |
109,000,000
EUR
|
— | — | — | — | — | — | — |
110,000,000
EUR
|
— | — | — | — |
| Gains (losses) on disposals of investment properties [abstract] | ||||||||||||||
| Gains (losses) on disposals of investment properties | — |
1,000,000
EUR
|
— | — | — | — | — | — | — |
37,000,000
EUR
|
— | — | — | — |
| Finance income (cost) | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other finance income (cost) | — |
353,000,000
EUR
|
— | — | — | — | — | — | — |
335,000,000
EUR
|
— | — | — | — |
| Other operating income (expense) | — |
78,000,000
EUR
|
— | — | — | — | — | — | — |
113,000,000
EUR
|
— | — | — | — |
| Miscellaneous other operating expense | — |
709,000,000
EUR
|
— | — | — | — | — | — | — |
918,000,000
EUR
|
— | — | — | — |
| Sales and marketing expense | — |
749,000,000
EUR
|
— | — | — | — | — | — | — |
893,000,000
EUR
|
— | — | — | — |
| Trading income (expense) [abstract] | ||||||||||||||
| Trading income (expense) | — |
28,000,000
EUR
|
— | — | — | — | — | — | — |
19,000,000
EUR
|
— | — | — | — |
| Expenses by nature [abstract] | ||||||||||||||
| Classes of employee benefits expense [abstract] | ||||||||||||||
| Employee benefits expense | — |
2,369,000,000
EUR
|
— | — | — | — | — | — | — |
2,412,000,000
EUR
|
— | — | — | — |
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||
| Other comprehensive income, attributable to non-controlling interests | — |
800,000,000
EUR
|
— | — | — | — | — | — | — |
357,000,000
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 | — |
113,000,000
EUR
|
— | — | — | — | — | — | — |
688,000,000
EUR
|
— | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||
| Comprehensive income |
800,000,000
EUR
|
875,000,000
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
75,000,000
EUR
|
75,000,000
EUR
|
–
EUR
|
–
EUR
|
5,075,000,000
EUR
|
–
EUR
|
357,000,000
EUR
|
4,720,000,000
EUR
|
4,720,000,000
EUR
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||
| Comprehensive income, attributable to owners of parent | — |
75,000,000
EUR
|
— | — | — | — | — | — | — |
4,718,000,000
EUR
|
— | — | — | — |