XML 43 R36.htm IDEA: XBRL DOCUMENT
v3.22.2

EQUITY AND NON-CONTROLLING INTERESTS (Details) € / shares in Units, $ / shares in Units, € in Millions, $ in Millions, R$ in Billions |  |  |  |  |  |  | 6 Months Ended | 7 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 08, 2022 USD ($) $ / shares | Jun. 08, 2022 EUR (€) € / shares shares | May 18, 2022 shares | May 04, 2022 USD ($) $ / shares | Apr. 25, 2022 USD ($) $ / shares | Apr. 25, 2022 EUR (€) € / shares shares | Mar. 30, 2022 BRL (R$) multiple | Jan. 14, 2021 shares | Jun. 30, 2022 USD ($) shares | Jul. 29, 2022 USD ($) shares | Jun. 30, 2022 BRL (R$) shares | Dec. 31, 2021 USD ($) shares | Dec. 28, 2021 USD ($) | Jun. 30, 2021 USD ($) | Dec. 31, 2020 USD ($)
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of treasury shares cancelled (in shares) | shares |  |  | 60,000,000 |  |  |  |  | 45,000,000 |  |  |  |  |  |  |
Treasury share repurchase program, authorised amount | $ 1,000 |  |  |  | $ 1,000 |  |  |  | $ 2,000 |  |  |  | $ 1,000 |  |
Number of shares issued (in shares) | shares |  |  |  |  |  |  |  |  | 877,809,772 |  | 877,809,772 | 982,809,772 |  |  |
Equity |  |  |  |  |  |  |  |  | $ 56,446 |  |  | $ 51,344 |  | $ 46,325 | $ 40,237
Authorised share capital |  |  |  |  |  |  |  |  | $ 404 |  |  | $ 442 |  |  |
Shares authorized (in shares) | shares |  |  |  |  |  |  |  |  | 1,136,418,599 |  | 1,136,418,599 | 1,241,418,599 |  |  |
Dividends (in USD per share) | $ / shares |  |  |  | $ 0.38 |  |  |  |  |  |  |  |  |  |  |
Dividends paid, ordinary shares |  |  |  | $ 332 |  |  |  |  |  |  |  |  |  |  |
Dividends recognised as distributions to non-controlling interests |  |  |  |  |  |  |  |  | $ 158 |  |  |  |  |  |
Dividends paid to non-controlling interests |  |  |  |  |  |  |  |  | $ 178 |  |  |  |  |  |
Shares buyback (in shares) | shares |  | 33,349,597 |  |  |  | 31,751,960 |  |  |  |  |  |  |  |  |
Payments for repurchase of equity | € |  | € 943 |  |  |  | € 911 |  |  |  |  |  |  |  |  |
Average cost per share (in USD/EUR per share) | (per share) | $ 29.99 | € 28.26 |  |  | $ 31.49 | € 28.68 |  |  |  |  |  |  |  |  |
Treasury shares (in shares) | shares |  |  |  |  |  |  |  |  | 31,200,000 |  | 31,200,000 | 71,900,000 |  |  |
EBITDA Mutiple | multiple |  |  |  |  |  |  | 6 |  |  |  |  |  |  |  |
ArcelorMittal Brasil S.A. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net debt | R$ |  |  |  |  |  |  | R$ 6.2 |  |  |  |  |  |  |  |
Percentage of 6x EBITDA |  |  |  |  |  |  | 15.00% |  |  |  |  |  |  |  |
Consideration payable related to put option |  |  |  |  |  |  |  |  | $ 200 |  | R$ 0.8 |  |  |  |
ArcelorMittal Brasil S.A. | Votorantim S.A. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interests held by non-controlling interests |  |  |  |  |  |  | 2.99% |  |  |  |  |  |  |  |
Potential ordinary share transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury share repurchase program, authorised amount |  |  |  |  |  |  |  |  |  | $ 1,400 |  |  |  |  |
Treasury share repurchase program, authorised no of shares (in shares) | shares |  |  |  |  |  |  |  |  |  | 60,431,380 |  |  |  |  |
Treasury share repurchase program, total authorised amount in period |  |  |  |  |  |  |  |  |  | $ 3,400 |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  | $ 312 |  |  | $ 350 |  | $ 393 | $ 393

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfClassesOfShareCapitalLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of dividends paid by the entity on ordinary shares. [Refer: Ordinary shares [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 34 -IssueDate 2021-01-01 -Paragraph 16A -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=34&code=ifrs-tx-2021-en-r&anchor=para_16A_f&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DividendsPaidOrdinaryShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of dividends paid to non-controlling interests. [Refer: Non-controlling interests] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2021-01-01 -Paragraph B10 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B10_a&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
Name: | ifrs-full_DividendsPaidToNoncontrollingInterests
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of dividends recognised as distributions to non-controlling interests. [Refer: Non-controlling interests] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 106 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_106_d&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount, per share, of dividends recognised as distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 107 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_107&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare
Namespace Prefix: | ifrs-full_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of residual interest in the assets of the entity after deducting all its liabilities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 1 -IssueDate 2021-01-01 -Paragraph 24 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2021-en-r&anchor=para_24_a&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 1 -IssueDate 2021-01-01 -Paragraph 32 -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2021-en-r&anchor=para_32_a_i&doctype=Standard -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2021-01-01 -Paragraph 93 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_a&doctype=Standard -URIDate 2021-03-24 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2021-01-01 -Paragraph 93 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_b&doctype=Standard -URIDate 2021-03-24 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2021-01-01 -Paragraph 93 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_e&doctype=Standard -URIDate 2021-03-24 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 78 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_e&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_Equity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of net debt of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_NetDebt
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of shares authorised. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_79_a_i&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_NumberOfSharesAuthorised
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares issued by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 106 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_106_d&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_NumberOfSharesIssued
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The proportion of ownership interests in a subsidiary held by non-controlling interests. [Refer: Subsidiaries [member]; Non-controlling interests] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2021-01-01 -Paragraph 12 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_12_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Authorised Share Capital + References No definition available. + Details
Name: | mt_AuthorisedShareCapital
Namespace Prefix: | mt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Consideration Payable Related To Put Option + References No definition available. + Details
Name: | mt_ConsiderationPayableRelatedToPutOption
Namespace Prefix: | mt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition EBITDA Mutiple + References No definition available. + Details
Name: | mt_EBITDAMutiple
Namespace Prefix: | mt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Treasury Shares + References No definition available. + Details
Name: | mt_NumberOfTreasuryShares
Namespace Prefix: | mt_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Treasury Shares Cancelled + References No definition available. + Details
Name: | mt_NumberOfTreasurySharesCancelled
Namespace Prefix: | mt_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Payments For Repurchase Of Equity1 + References No definition available. + Details
Name: | mt_PaymentsForRepurchaseOfEquity1
Namespace Prefix: | mt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Portion Of 6 Times The Longs Business EBITDA, Put Option Liability Calculation + References No definition available. + Details
Name: | mt_PortionOf6TimesTheLongsBusinessEBITDAPutOptionLiabilityCalculation
Namespace Prefix: | mt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Stock Repurchased During Period Shares1 + References No definition available. + Details
Name: | mt_StockRepurchasedDuringPeriodShares1
Namespace Prefix: | mt_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Treasury Share Repurchase Program, Authorised Amount + References No definition available. + Details
Name: | mt_TreasuryShareRepurchaseProgramAuthorisedAmount
Namespace Prefix: | mt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Treasury Share Repurchase Program, Authorised Amount In period + References No definition available. + Details
Name: | mt_TreasuryShareRepurchaseProgramAuthorisedAmountInPeriod
Namespace Prefix: | mt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Treasury Share Repurchase Program, Authorised Number of Shares + References No definition available. + Details
Name: | mt_TreasuryShareRepurchaseProgramAuthorisedNumberOfShares
Namespace Prefix: | mt_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Treasury Stock Acquired, Average Cost Per Share1 + References No definition available. + Details
Name: | mt_TreasuryStockAcquiredAverageCostPerShare1
Namespace Prefix: | mt_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=mt_ArcelorMittalBrasilS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=mt_VotorantimSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ifrs-full_PotentialOrdinaryShareTransactionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ComponentsOfEquityAxis=ifrs-full_IssuedCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |