Significant accounting policies, judgements, estimates and assumptions - Significant judgement: supplier financing arrangements (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Committed Letter Of Credit Facilities [Member] \| Liquidity risk
Disclosure of detailed information about financial instruments [line items]
Trade payables	$ 9,520	$ 9,154

The amount of payment due to suppliers for goods and services used in the entity's business.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 78
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_78&doctype=Standard
-URIDate 2022-03-24

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