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REVENUES - Non-Current Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Disclosure of geographical areas [line items]    
Other assets $ 8,076 $ 8,758
Brazil    
Disclosure of geographical areas [line items]    
Other assets 3,115 3,494
United Kingdom    
Disclosure of geographical areas [line items]    
Other assets $ 4,961 $ 5,264