Financial investments, Restructuring agreement of Abengoa (Details) $ in Millions |
6 Months Ended | ||
|---|---|---|---|
|
Jun. 30, 2019
USD ($)
mi
|
Jan. 29, 2019
USD ($)
|
Dec. 31, 2018
USD ($)
|
|
| Restructuring Agreement [Abstract] | |||
| Restricted cash included in current other recievables | $ 78.4 | $ 78.9 | |
| Befesa Agua Tenes, S.L.U. [Member] | |||
| Restructuring Agreement [Abstract] | |||
| Consideration payment advanced | $ 19.9 | ||
| Ten West Link [Member] | |||
| Restructuring Agreement [Abstract] | |||
| Percentage interest acquired | 12.50% | ||
| Length of transmission lines | mi | 114 | ||
| Rioglass [Member] | |||
| Restructuring Agreement [Abstract] | |||
| Percentage interest acquired | 15.12% |