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ACCOUNTS RECEIVABLE AND OTHER
12 Months Ended
Dec. 31, 2021
Subclassifications of assets, liabilities and equities [abstract]  
ACCOUNTS RECEIVABLE AND OTHER ACCOUNTS RECEIVABLE AND OTHER
As of December 31,
US$ MILLIONS20212020
Current:  
Accounts receivable(1)
$402 $345 
Prepayments & other assets46 49 
Total current$448 $394 
Non-current:  
Other assets$15 $101 
Total non-current$15 $101 
(1)Includes $210 million (2020: $185 million) receivable from one customer. Please refer to Note 16 for revenues attributable to this customer.