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INTEREST EXPENSE
 12 Months Ended
Dec. 31, 2019
Analysis of income and expense [abstract]  
INTEREST EXPENSE
INTEREST EXPENSE
US$ MILLIONS
 
2019
 
2018
 
2017
Interest on corporate facility
 
$
20

 
$
4

 
$
12

Interest on corporate debt
 
63

 
56

 
51

Interest on non-recourse borrowings
 
738

 
483

 
361

Other financing fees
 
83

 
12

 
4

 
 
$
904

 
$
555

 
$
428