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INVENTORY
 12 Months Ended
Dec. 31, 2020
Inventories [Abstract]  
INVENTORY INVENTORY
US$ MILLIONS20202019
Natural gas inventory$71 $127 
Raw materials and other150 115 
Carrying amount of inventories$221 $242 
During the year ended December 31, 2020, Brookfield Infrastructure recognized $686 million (2019: $626 million, 2018: $502 million) worth of inventories as an expense in the Consolidated Statements of Operating Results and $3 million (2019: $3 million, 2018: $nil) relating to impairments of inventory.