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Loans, borrowings, leases, cash and cash equivalents and short-term investments - Lease liabilities (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure Of Lease Liabilities Rollforward Abstract |  |
Beginning balance | $ 1,791 |
Additions and contact modifications | 125 |
Payments | (219) | $ (224)
Interest | 70 | 76
Translation adjustment | (100) |
Ending balance | 1,667 | 1,791
Variable lease payments not included in the measurement of lease liabilities | 63 | 560
Ports |  |
Disclosure Of Lease Liabilities Rollforward Abstract |  |
Beginning balance | 750 |
Additions and contact modifications | 50 |
Payments | (71) |
Interest | 30 |
Translation adjustment | (16) |
Ending balance | 743 | 750
Vessels |  |
Disclosure Of Lease Liabilities Rollforward Abstract |  |
Beginning balance | 580 |
Payments | (72) |
Interest | 25 |
Ending balance | 533 | 580
Pellets plants |  |
Disclosure Of Lease Liabilities Rollforward Abstract |  |
Beginning balance | 175 |
Additions and contact modifications | 39 |
Payments | (36) |
Interest | 4 |
Translation adjustment | (45) |
Ending balance | 137 | 175
Properties |  |
Disclosure Of Lease Liabilities Rollforward Abstract |  |
Beginning balance | 152 |
Additions and contact modifications | 32 |
Payments | (17) |
Interest | 7 |
Translation adjustment | (32) |
Ending balance | 142 | 152
Energy plants |  |
Disclosure Of Lease Liabilities Rollforward Abstract |  |
Beginning balance | 71 |
Payments | (2) |
Interest | 1 |
Translation adjustment | (8) |
Ending balance | 62 | 71
Mining equipment and locomotives |  |
Disclosure Of Lease Liabilities Rollforward Abstract |  |
Beginning balance | 63 |
Additions and contact modifications | 4 |
Payments | (21) |
Interest | 3 |
Translation adjustment | 1 |
Ending balance | $ 50 | $ 63

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- Definition The amount of the expense relating to variable lease payments not included in the measurement of lease liabilities. Variable lease payments are the portion of payments made by a lessee to a lessor for the right to use an underlying asset during the lease term that varies because of changes in facts or circumstances occurring after the commencement date, other than the passage of time. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2020-01-01 -Paragraph 53 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53_e&doctype=Standard -URIDate 2020-01-01 + Details
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- 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 2020-01-01 -Paragraph 53 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53_b&doctype=Standard -URIDate 2020-01-01 + Details
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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 2020-01-01 -Paragraph 47 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_47_b&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The cash outflow for payment of lease liabilities, classified as financing activities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Paragraph 17 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_17_e&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of increase in lease liabilities from additions and contact modifications. + References No definition available. + Details
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- Definition Disclosure Of Lease Liabilities Rollforward Abstract + References No definition available. + Details
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- Definition The increase (decrease) in lease liabilities resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. + References No definition available. + Details
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