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Other assets impairments, restructuring and other items - Schedule of Other Assets Impairments, Restructuring and Other Items (Detail) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Restructuring and Impairment Costs [Line Items]    
Impairments of long-lived tangible assets [1] $ 16 $ 48
Contingent consideration (see note 20) 33 3
Restructuring 57 81
Other 21 4
Total $ 128 $ 137
[1] Including impairments related to exit and disposal activities