Salaries and social security - Summary of detailed information about salaries and social security (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Salaries And Social Security [Abstract]
Salaries and social security current	$ 58	$ 68	$ 49
Bonuses and incentives provision current	104	113	67
Vacation provision current	45	77	70
Other employee benefits current	3	39	43
Other employee benefits non current		1	32
Salaries and social security current	210	297	229
Salaries and social security non current	$ 0	$ 1	$ 32

The amount of accruals for employee benefits (other than termination benefits) that are expected to be settled wholly within twelve months after the end of the annual reporting period in which the employees render the related services. [Refer: Accruals classified as current]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 78
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_78&doctype=Standard
-URIDate 2023-03-23

Name:	ifrs-full_ShorttermEmployeeBenefitsAccruals
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant