v3.8.0.1

Financial investments, Restructuring agreement of Abengoa (Details) - Ten West Link [Member]	3 Months Ended
	Mar. 31, 2018 mi
Restructuring Agreement [Abstract]
Percentage interest acquired	12.50%
Length of transmission lines	114

X

- Definition

The total span, length or measured distance of transmission lines.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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X

- Definition

The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2017-01-01
-Paragraph B64
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2017-03-01&anchor=para_B64_c&doctype=Appendix&seq=2
-URIDate 2017-03-09

+ Details

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- Details

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