XML 537 R126.htm IDEA: XBRL DOCUMENT v3.22.0.1

FINANCIAL RISK MANAGEMENT - Exposure to Financial Counterparties by Rating Type (Details) € in Thousands	Dec. 31, 2021 EUR (€) counterparty	Dec. 31, 2020 EUR (€) counterparty
Disclosure of nature and extent of risks arising from financial instruments [line items]
Number of financial counterparties | counterparty	19	13
Exposure	€ 185,000	€ 422,000
Credit exposure threshold amount	€ 250	€ 250
Rated Aa or better
Disclosure of nature and extent of risks arising from financial instruments [line items]
Number of financial counterparties | counterparty	3	3
Exposure	€ 54,000	€ 120,000
Rated A
Disclosure of nature and extent of risks arising from financial instruments [line items]
Number of financial counterparties | counterparty	13	8
Exposure	€ 98,000	€ 282,000
Rated Baa
Disclosure of nature and extent of risks arising from financial instruments [line items]
Number of financial counterparties | counterparty	3	2
Exposure	€ 33,000	€ 20,000

X

- Definition

Credit exposure threshold amount.

+ References

No definition available.

+ Details

Name:	cstm_CreditExposureThresholdAmount
Namespace Prefix:	cstm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Number of financial counterparties.

+ References

No definition available.

+ Details

Name:	cstm_NumberOfFinancialCounterparties
Namespace Prefix:	cstm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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

X

- Definition

The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2021-01-01
-Paragraph 35K
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35K_a&doctype=Standard
-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 7
-IssueDate 2021-01-01
-Paragraph 36
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_36_a&doctype=Standard&book=b
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_MaximumExposureToCreditRisk
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_ExternalCreditGradesAxis=cstm_RatedAaOrBetterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ExternalCreditGradesAxis=cstm_RatedAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ExternalCreditGradesAxis=cstm_RatedBaaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: