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Schedule of result from interests in associates and joint ventures (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
IfrsStatementLineItems [Line Items]
Share of profit (loss) of associates	$ 23	$ (6)	$ 19
Share of Profit (Loss) of joint ventures	94	91
Share of Profit (Loss) of joint ventures			82
Total investments in associates and joint ventures	117	85	101
C I E S A [Member]
IfrsStatementLineItems [Line Items]
Share of profit (loss) of joint ventures	50	11	50
C T B [Member]
IfrsStatementLineItems [Line Items]
Share of profit (loss) of joint ventures	49	64	13
Citelec [Member]
IfrsStatementLineItems [Line Items]
Share of profit (loss) of joint ventures	(3)	13	19
Greenwind [Member]
IfrsStatementLineItems [Line Items]
Share of profit (loss) of joint ventures	(2)	3
Refinor [Member]
IfrsStatementLineItems [Line Items]
Share of profit (loss) of associates	(2)	(2)	(3)
O C P [Member]
IfrsStatementLineItems [Line Items]
Share of profit (loss) of associates	18	(5)	21
T G S 1 [Member]
IfrsStatementLineItems [Line Items]
Share of profit (loss) of associates	$ 7	$ 1	$ 1

X

- Definition

The entity's share of the profit (loss) of associates accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Profit (loss)]

+ References

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- Definition

The entity's share of the profit (loss) of associates and joint ventures accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Joint ventures [member]; Profit (loss)]

+ References

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