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Interest expense
12 Months Ended
Dec. 31, 2021
Borrowing costs [abstract]  
Interest expense
Note 6 Interest expense
FOR THE YEAR ENDED DECEMBER 31 2021 2020
Interest expense on long-term debt (1,088) (1,072)
Interest expense on other debt (57) (87)
Capitalized interest 63  49 
Total interest expense (1,082) (1,110)
Included in interest expense on long-term debt is interest on lease liabilities of $177 million and $199 million for 2021 and 2020, respectively.
Capitalized interest was calculated using an average rate of 3.83% and 3.95% for 2021 and 2020, respectively, which represents the weighted average interest rate on our outstanding long-term debt.