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Discontinued operations (Details 5) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Apr. 08, 2019 | Jan. 01, 2019
--- | --- | --- | --- | ---
Statement [line items] |  |  |  |
Lease liabilities | $ 2,005 | $ 1,949 |  | $ 1,736
Right-of-use assets | 1,676 | 1,677 |  | 1,554
Not later than one year [member] |  |  |  |
Statement [line items] |  |  |  |
Lease liabilities | 286 | 246 |  |
Between one and five years |  |  |  |
Statement [line items] |  |  |  |
Lease liabilities | 692 | 622 |  |
Later than five years [member] |  |  |  |
Statement [line items] |  |  |  |
Lease liabilities | $ 1,027 | $ 1,081 |  |
Discontinued operations |  |  |  |
Statement [line items] |  |  |  |
Lease liabilities |  |  | $ 269 | 286
Right-of-use assets |  |  | $ 269 | $ 276

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- Definition The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph 47 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_47_b&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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- Details
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- Details
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- Details
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