Changes in the Group structure - Major business combinations, EDP Comercializadora Espagne- (Details) - EDP Comercializadora Espagne $ in Millions	Dec. 01, 2020 USD ($) item
Major business combinations
Number of gas-fired combined cycle power plants acquired \| item	2
Purchase price	$ 578
Fair value of the identifiable acquired assets and the liabilities assumed	233
Purchase price allocation
Goodwill	345
Intangible assets	56
Tangible assets	235
Other assets and liabilities	(58)
FAIR VALUE OF CONSIDERATION	$ 578

The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]]

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The amount recognised as of the business combination's acquisition date for goodwill. [Refer: Goodwill; Business combinations [member]]

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The amount recognised as of the acquisition date for net identifiable assets acquired or liabilities assumed in a business combination. [Refer: Business combinations [member]]

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The amount recognised as of the acquisition date for identifiable intangible assets acquired in a business combination. [Refer: Intangible assets other than goodwill; Business combinations [member]]

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The amount recognised as of the acquisition date for plant, property and equipment acquired in a business combination. [Refer: Property, plant and equipment; Business combinations [member]]

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The number of gas-fired combined cycle power plants acquired by the entity during the period.

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The amount recognised as of the acquisition date for net other assets and liabilities acquired in a business combination.

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