Interest-bearing Loans and Borrowings - Summary of Loans and Borrowings Outstanding (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2003
Disclosure of detailed information about borrowings [abstract]
Bank overdrafts	$ 111	$ 120
Bank loans	430	541
Bonds	9,946	11,554	$ 300
Interest-bearing loans and borrowings	$ 10,487	$ 12,215

The amount of bonds issued by the entity.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2021-03-24

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