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Capital structure and financing - C.3.3. Interest and other financial expenses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest and other financial expenses:
Interest expense on bonds and bank financing	$ (386)	$ (348)	$ (234)
Interest expense on leases	(156)	(157)	(91)
Early redemption charges	(15)	(10)	(4)
Others	(67)	(47)	(37)
Total interest and other financial expenses	$ (624)	$ (564)	$ (367)	[1]
[1] 2018 was not restated for the application of IFRS 16, as the Group elected the modified retrospective approach.

X

- Definition

The amount of costs associated with financing activities of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 82
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X

- Definition

The amount of interest expense on borrowings. [Refer: Interest expense; Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 112
-Subparagraph c
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X

- Definition

The amount of interest expense on lease liabilities. [Refer: Lease liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2019-01-01
-Paragraph 53
-Subparagraph b
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X

- Definition

The amount of finance costs that the entity does not separately disclose in the same statement or note. [Refer: Finance costs]

+ References

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-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 112
-Subparagraph c
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-URIDate 2019-03-27

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- Definition

Early Redemption Fees

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No definition available.

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X

- Definition

Interest And Other Financial Expenses [Abstract]

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No definition available.

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