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Interest expense | 12 Months Ended
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Dec. 31, 2020
Borrowing costs [abstract] |
Interest expense |
Note 7 | Interest expense
FOR THE YEAR ENDED DECEMBER 31 | 2020 | 2019
Interest expense on long-term debt | (1,072) |  | (1,017) |
Interest expense on other debt | (87) |  | (153) |
Capitalized interest | 49 |  | 45 |
Total interest expense | (1,110) |  | (1,125) |
Included in interest expense on long-term debt is interest on lease liabilities of $199 million and $213 million for 2020 and 2019, respectively. Capitalized interest was calculated using an average rate of 3.95% and 3.96% for 2020 and 2019, respectively, which represents the weighted average interest rate on our outstanding long-term debt.

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- Definition The disclosure of interest expense. [Refer: Interest expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_10_e&doctype=Standard -URIDate 2020-01-01 + Details
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