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ACCOUNTS RECEIVABLE AND OTHER
12 Months Ended
Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract]  
ACCOUNTS RECEIVABLE AND OTHER ACCOUNTS RECEIVABLE AND OTHER
As of December 31,
US$ MILLIONS20202019
Current:  
Accounts receivable(1)
$345 $356 
Prepayments & other assets49 34 
Total current$394 $390 
Non-current:  
Other assets$101 $89 
Total non-current$101 $89 
(1)Includes $185 million (2019: $214 million) receivable from one customer. Please refer to Note 14 for revenues attributable to this customer.