| Total [miembro] | ||||||||||
| Acueducto [miembro] | Alcantarillado [miembro] | Aseo [miembro] | Energía Eléctrica [miembro] | Gas combustible por redes [miembro] | Gas Licuado de Petróleo [miembro] | Otras actividades no vigiladas por la SSPD [miembro] | Operador del sistema y Administrador del mercado de energia (XM) [miembro] | |||
| Estado de Resultados Integral por Servicio [partidas] | ||||||||||
| Profit (loss) [abstract] | ||||||||||
| Revenue | ||||||||||
| Interest revenue calculated using effective interest method | ||||||||||
| Cost of sales | ||||||||||
| Gross profit | ||||||||||
| Other income | ||||||||||
| Administrative expenses | ||||||||||
| Other expense, by function | ||||||||||
| Other gains (losses) | ||||||||||
| Profit (loss) from operating activities | ||||||||||
| Difference between carrying amount of dividends payable and carrying amount of non-cash assets distributed | ||||||||||
| Gains (losses) on net monetary position | ||||||||||
| Gain (loss) arising from derecognition of financial assets measured at amortised cost | ||||||||||
| Finance income | ||||||||||
| Finance costs | ||||||||||
| Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9 | ||||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method | ||||||||||
| Other income (expense) from subsidiaries, jointly controlled entities and associates | ||||||||||
| Gains (losses) arising from difference between previous amortised cost and fair value of financial assets reclassified out of amortised cost into fair value through profit or loss measurement category | ||||||||||
| Cumulative gain (loss) previously recognised in other comprehensive income arising from reclassification of financial assets out of fair value through other comprehensive income into fair value through profit or loss measurement category | ||||||||||
| Hedging gains (losses) for hedge of group of items with offsetting risk positions | ||||||||||
| Profit (loss) before tax | ||||||||||
| Tax expense (income) | ||||||||||
| Profit (loss) from continuing operations | ||||||||||
| Profit (loss) from discontinued operations | ||||||||||
| Profit (loss) | ||||||||||
| Earnings per share [abstract] | ||||||||||
| Basic earnings per share [abstract] | ||||||||||
| Basic earnings (loss) per share from continuing operations | ||||||||||
| Basic earnings (loss) per share from discontinued operations | ||||||||||
| Basic earnings (loss) per share | ||||||||||
| Diluted earnings per share [abstract] | ||||||||||
| Diluted earnings (loss) per share from continuing operations | ||||||||||
| Diluted earnings (loss) per share from discontinued operations | ||||||||||
| Diluted earnings (loss) per share | ||||||||||
| Total [miembro] | ||||||||||
| Acueducto [miembro] | Alcantarillado [miembro] | Aseo [miembro] | Energía Eléctrica [miembro] | Gas combustible por redes [miembro] | Gas Licuado de Petróleo [miembro] | Otras actividades no vigiladas por la SSPD [miembro] | Operador del sistema y Administrador del mercado de energia (XM) [miembro] | |||
| Estado de Resultados Integral por Servicio [partidas] | ||||||||||
| Profit (loss) [abstract] | ||||||||||
| Revenue | ||||||||||
| Interest revenue calculated using effective interest method | ||||||||||
| Cost of sales | ||||||||||
| Gross profit | ||||||||||
| Other income | ||||||||||
| Administrative expenses | ||||||||||
| Other expense, by function | ||||||||||
| Other gains (losses) | ||||||||||
| Profit (loss) from operating activities | ||||||||||
| Difference between carrying amount of dividends payable and carrying amount of non-cash assets distributed | ||||||||||
| Gains (losses) on net monetary position | ||||||||||
| Gain (loss) arising from derecognition of financial assets measured at amortised cost | ||||||||||
| Finance income | ||||||||||
| Finance costs | ||||||||||
| Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9 | ||||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method | ||||||||||
| Other income (expense) from subsidiaries, jointly controlled entities and associates | ||||||||||
| Gains (losses) arising from difference between previous amortised cost and fair value of financial assets reclassified out of amortised cost into fair value through profit or loss measurement category | ||||||||||
| Cumulative gain (loss) previously recognised in other comprehensive income arising from reclassification of financial assets out of fair value through other comprehensive income into fair value through profit or loss measurement category | ||||||||||
| Hedging gains (losses) for hedge of group of items with offsetting risk positions | ||||||||||
| Profit (loss) before tax | ||||||||||
| Tax expense (income) | ||||||||||
| Profit (loss) from continuing operations | ||||||||||
| Profit (loss) from discontinued operations | ||||||||||
| Profit (loss) | ||||||||||
| Earnings per share [abstract] | ||||||||||
| Basic earnings per share [abstract] | ||||||||||
| Basic earnings (loss) per share from continuing operations | ||||||||||
| Basic earnings (loss) per share from discontinued operations | ||||||||||
| Basic earnings (loss) per share | ||||||||||
| Diluted earnings per share [abstract] | ||||||||||
| Diluted earnings (loss) per share from continuing operations | ||||||||||
| Diluted earnings (loss) per share from discontinued operations | ||||||||||
| Diluted earnings (loss) per share | ||||||||||