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INTEREST EXPENSE (Tables)
 12 Months Ended
Dec. 31, 2021
Analysis of income and expense [abstract]  
Disclosure of interest expense
US$ MILLIONS202120202019
Interest on corporate facility$16 $19 $20 
Interest on corporate debt87 76 63 
Interest on non-recourse borrowings1,134 944 738 
Other financing fees(1)
231 140 83 
$1,468 $1,179 $904