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FINANCIAL ASSETS
 12 Months Ended
Dec. 31, 2021
Financial Instruments [Abstract]  
FINANCIAL ASSETS FINANCIAL ASSETS
(US$ MILLIONS)20212020
Current  
Restricted cash$47 $299 
Derivative contracts40 19 
Loans and notes receivable1 1 
Total current$88 $319 
Non-current  
Restricted cash209 204 
Derivative contracts45 36 
Loans and notes receivable7 1 
Total non-current$261 $241