XML 350 R116.htm IDEA: XBRL DOCUMENT v3.22.4

FINANCIAL RISK MANAGEMENT - Nominal Value of Currency Derivatives (Details) - Currency risk EUR_ in Millions	Dec. 31, 2022 EUR_
Less than 1 year | Sold currencies USD
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	409
Less than 1 year | Sold currencies CHF
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	82
Less than 1 year | Sold currencies CZK
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	3
Less than 1 year | Sold currencies - Other currencies
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	10
Less than 1 year | Purchased currencies USD
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	109
Less than 1 year | Purchased currencies CHF
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	134
Less than 1 year | Purchased currencies EUR
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	78
Less than 1 year | Purchased currencies - Other currencies
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	1
Over 1 year | Sold currencies USD
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	186
Over 1 year | Sold currencies CHF
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	29
Over 1 year | Sold currencies CZK
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	0
Over 1 year | Sold currencies - Other currencies
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	0
Over 1 year | Purchased currencies USD
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	25
Over 1 year | Purchased currencies CHF
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	16
Over 1 year | Purchased currencies EUR
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	20
Over 1 year | Purchased currencies - Other currencies
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Nominal value	0

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_DisclosureOfInformationAboutTermsAndConditionsOfHedgingInstrumentsAndHowTheyAffectFutureCashFlowsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The nominal amount of a hedging instrument. [Refer: Hedging instruments [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 23B
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_23B_a&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 24A
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_24A_d&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_NominalAmountOfHedgingInstrument
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_TypesOfRisksAxis=ifrs-full_CurrencyRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MaturityAxis=ifrs-full_NotLaterThanOneYearMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_HedgingInstrumentsAxis=cstm_UsdEurForwardDerivativesSalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_HedgingInstrumentsAxis=cstm_EurChfForwardDerivativesSalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_HedgingInstrumentsAxis=cstm_EURCZKForwardDerivativesSalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_HedgingInstrumentsAxis=cstm_OtherCurrenciesForwardDerivativesSalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_HedgingInstrumentsAxis=cstm_UsdEurForwardDerivativesPurchasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_HedgingInstrumentsAxis=cstm_EurChfForwardDerivativesPurchasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_HedgingInstrumentsAxis=cstm_ForwardDerivativesPurchasesEurCzkMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_HedgingInstrumentsAxis=cstm_OtherCurrenciesForwardDerivativesPurchasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: