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FINANCIAL LIABILITIES
 12 Months Ended
Dec. 31, 2020
Financial Instruments [Abstract]  
FINANCIAL LIABILITIES FINANCIAL LIABILITIES
US$ MILLIONS20202019
Current:
Deferred consideration$136 $131 
Interest rate swaps116 — 
Foreign currency forward contracts107 61 
Other financial liabilities337 137 
Total current financial liabilities$696 $329 
Non-current:
Deferred consideration(1)
$1,022 $1,115 
Interest rate swaps341 113 
Foreign currency forward contracts138 36 
Inflation swaps46 71 
Other financial liabilities1,131 509 
Total non-current financial liabilities$2,678 $1,844 
(1)Deferred consideration primarily relates to the April 4, 2017 acquisition our Brazilian regulated gas transmission operation. The deferred consideration is denominated in U.S. dollars and accrues interest at 3.35% compounded annually. The financial liability is measured at amortized cost and is payable on the fifth anniversary of the date of acquisition.