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Lease liability and Right-of-use assets (Details 3) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Movements of the right-of-use assets [roll forward] |  |
Right-of-use assets at beginning of period | $ 1,677 |
Impact of business combinations | 32 |
Additions to right-of-use assets | 346 | $ 537
Depreciation charge | (330) | (305)
Lease contract terminations, right-of-use assets | (63) | (98)
Impact of divestments | (32) | (17)
Increase decrease through net exchange differences, right-of-use assets | 46 | 6
Right-of-use assets at end of period | 1,676 | 1,677
Impairment loss recognised in profit or loss, right of use assets | $ 0 | 0
Discontinued operations |  |
Movements of the right-of-use assets [roll forward] |  |
Additions to right-of-use assets |  | $ 3

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- Definition The amount of additions to right-of-use assets. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph 53 -Subparagraph h -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_53_h&doctype=Standard -URIDate 2019-03-27 + Details
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Period Type: | duration

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- Definition The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph 53 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_53_a&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of assets that represent a lessee's right to use an underlying asset for the lease term. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph 53 -Subparagraph j -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_53_j&doctype=Standard -URIDate 2019-03-27 + Details
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- References No definition available. + Details
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- Details
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