Financial investments, Restructuring agreement of Abengoa (Details) - mi |
6 Months Ended | |
|---|---|---|
Jun. 30, 2021 |
Dec. 31, 2020 |
|
| Ten West Link [Member] | ||
| Restructuring Agreement [Abstract] | ||
| Percentage of interest acquired | 12.50% | |
| Length of transmission lines | 114 | |
| Rioglass [Member] | ||
| Restructuring Agreement [Abstract] | ||
| Percentage of interest acquired | 15.12% |