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INVENTORY
 12 Months Ended
Dec. 31, 2021
Inventories [Abstract]  
INVENTORY INVENTORY
US$ MILLIONS20212020
Natural gas inventory$132 $71 
Raw materials and other268 150 
Carrying amount of inventories$400 $221 
Refer to Note 23, Direct Operating Costs, for further details on inventory expenses identified as “cost of inventory”