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OTHER ASSETS
 12 Months Ended
Dec. 31, 2021
Subclassifications of assets, liabilities and equities [abstract]  
OTHER ASSETS OTHER ASSETS
(US$ MILLIONS)20212020
Current  
Work in progress (1)
$478 $488 
Prepayments and other assets872 650 
Assets held for sale9 35 
Total current$1,359 $1,173 
Non-current  
Work in progress (1)
$— $48 
Prepayments and other assets488 363 
Total non-current$488 $411 
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(1)See Note 16 for additional information.