Schedule of evolution of interests in associates and joint ventures (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
At the beginning of the year	$ 547	$ 507	$ 403
Compensation		(5)	(16)
Dividends		(34)	(75)
Increases	17	3	108
Share of profit	117	85	101
Exchange differences	89	(9)	(14)
At the end of the year	$ 770	$ 547	$ 507

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)]

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