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Interest and Other Financing Expense (Tables)
 12 Months Ended
Dec. 31, 2020
Borrowing costs [abstract]  
Disclosure of interest and other financing expense
 
2020

2019

2018
Interest and other financing expense:
 

 

 
Long-term debt
$785 

$895 

$867 
Lease liabilities (1)
67 

70 

— 
Less: amounts capitalized on qualifying assets
(24)

(53)

(69)
Total interest and other financing expense
828 912 798 
Total interest income
(72)

(76)

(59)
Net interest and other financing expense
$756 $836 $739 
(1) The Company adopted IFRS 16 "Leases" on January 1, 2019 using the modified retrospective approach.