| Assets | — | — |
| Non-current assets | — | — |
| Property, plant and equipment | 37,816.88a | 35,330.66a |
| Right-of-use assets | 2,135.53a | 1,524.88a |
| Investment properties | 2,233.46a | 1,966.67a |
| Service concession assets | 881.89a | 0a |
| Development expenditures | 796.15a | 786.09a |
| Investment in subsidiaries | 0a | 0a |
| Investment in associates | 4,260.03a | 3,863.79a |
| Investment in joint ventures | 467.39a | 377.5a |
| Investments | 525.49a | 518.99a |
| Intangible assets | 9,934.12a | 9,428.41a |
| Operating financial assets | 404.48a | 0a |
| Contract assets | 54.1a | 9.21a |
| Trade and other receivables | 3,200.95a | 3,011.4a |
| Deferred tax assets | 338.37a | 353.27a |
| Post-employment benefit assets | 31.12a | 64.31a |
| Derivative financial instruments | 16.35a | 2.88a |
| Non-current assets | 63,096.31a | 57,238.05a |
| Current assets | — | — |
| Inventories | 1,301.21a | 1,219.61a |
| Property development costs | 692.51a | 443.56a |
| Trade and other receivables | 6,126.9a | 5,509.85a |
| Operating financial assets | 234.73a | 0a |
| Contract assets | 750.07a | 422.69a |
| Derivative financial instruments | 122.26a | 18.82a |
| Income tax assets | 140.51a | 108.35a |
| Amounts due from related parties | 83.56a | 73.22a |
| Investments | 1,983.38a | 2,000.57a |
| Fixed deposits | 12,836.85a | 11,195.32a |
| Cash and bank balances | 1,422.36a | 3,230.33a |
| Current assets | 25,694.33a | 24,222.32a |
| Total assets | 88,790.63a | 81,460.37a |
| Equity and liabilities | — | — |
| Equity attributable to owners of the parent | — | — |
| Share capital | 3,491.79a | 3,467.56a |
| Other reserves | 1,970.02a | 1,761.2a |
| Retained earnings | 11,010.76a | 9,291.39a |
| Treasury shares, at cost | -54.45a | -54.45a |
| Equity attributable to owners of the parent | 16,418.12a | 14,465.69a |
| Non-controlling interests | 7,741.97a | 5,647.54a |
| Total equity | 24,160.09a | 20,113.23a |
| Non-current liabilities | — | — |
| Long-term payables | 2,301.05a | 1,817.48a |
| Contract liabilities | 47.3a | 35.1a |
| Bonds | 28,477.54a | 23,318.66a |
| Borrowings | 12,151.1a | 15,336.29a |
| Lease liabilities | 1,233.51a | 1,094.32a |
| Service concession obligations | 559.2a | 0a |
| Grants and contributions | 721.87a | 699.03a |
| Deferred tax liabilities | 3,763.74a | 3,773.21a |
| Post-employment benefit obligations | 90.48a | 38.43a |
| Provision for liabilities and charges | 34.53a | 22.48a |
| Derivative financial instruments | 1.2a | 9.65a |
| Non-current liabilities | 49,381.52a | 46,144.64a |
| Current liabilities | — | — |
| Trade and other payables | 6,378.12a | 5,631.02a |
| Contract liabilities | 862.52a | 798.71a |
| Derivative financial instruments | 20.02a | 110.83a |
| Amounts due to related parties | 12.73a | 37.97a |
| Bonds | 1,193.41a | 1,594.47a |
| Borrowings | 4,799.85a | 6,204.78a |
| Lease liabilities | 739.51a | 260.39a |
| Service concession obligations | 385.17a | 0a |
| Provision for liabilities and charges | 110.62a | 117.59a |
| Post-employment benefit obligations | 21.35a | 6.84a |
| Income tax liabilities | 725.72a | 439.91a |
| Current liabilities | 15,249.03a | 15,202.5a |
| Total liabilities | 64,630.55a | 61,347.14a |
| Total equity and liabilities | 88,790.63a | 81,460.37a |