XML 685 R194.htm IDEA: XBRL DOCUMENT v3.22.0.1
Related-party transactions - Summary of transactions and balances with equity accounted units (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of transactions between related parties [Line Items]      
Dividends from equity accounted units $ 1,431 $ 594 $ 669
Investments in equity accounted units 3,504 3,764  
Loans to equity accounted units 0 41  
Investment in equity accounted units      
Disclosure of transactions between related parties [Line Items]      
Purchases from equity accounted units (1,167) (960) (1,155)
Sales to equity accounted units 432 271 268
Dividends from equity accounted units 1,431 594 669
Net receipts/(funding) from/of equity accounted units 6 (43) (33)
Investments in equity accounted units 3,504 3,764 3,971
Loans to equity accounted units 0 41 39
Trade and other receivables: amounts due from equity accounted units 251 251 259
Trade and other payables: amounts due to equity accounted units $ (253) $ (241) $ (271)