XML 89 R80.htm IDEA: XBRL DOCUMENT v3.22.2

FINANCIAL INSTRUMENTS - Narrative (Details) - Fair value - Level 1 € in Millions	Jun. 30, 2022 EUR (€)
Constellium SE Senior Notes Due 2024
Disclosure of detailed information about financial instruments [line items]
Percentage of fair value senior notes issued	92.00%
Senior notes issued	€ 633
Constellium SE Senior Unsecured Notes Ddue 2025
Disclosure of detailed information about financial instruments [line items]
Percentage of fair value senior notes issued	92.00%
Senior notes issued	€ 286
Constellium SE Senior Notes Due 2026
Disclosure of detailed information about financial instruments [line items]
Percentage of fair value senior notes issued	80.00%
Senior notes issued	€ 386
Constellium SE Senir Notes Due 2028
Disclosure of detailed information about financial instruments [line items]
Percentage of fair value senior notes issued	77.00%
Senior notes issued	€ 232

X

- Definition

Percentage of fair value senior notes issued.

+ References

No definition available.

+ Details

Name:	cstm_PercentageOfFairValueSeniorNotesIssued
Namespace Prefix:	cstm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Senior notes fair value.

+ References

No definition available.

+ Details

Name:	cstm_SeniorNotesFairValue
Namespace Prefix:	cstm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_DisclosureOfFinancialInstrumentsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cstm_ConstelliumSESeniorUnsecuredNotesIssuedMayTwoThousandFourteenDueTwoThousandTwentyFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MeasurementAxis=ifrs-full_AtFairValueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_LevelsOfFairValueHierarchyAxis=ifrs-full_Level1OfFairValueHierarchyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cstm_ConstelliumSESeniorUnsecuredNotesIssuedFebruaryTwoThousandSeventeenDueTwoThousandTwentyFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cstm_ConstelliumSEEURandUSDseniorunsecurednotesissuedNovembertwothousandseventeenDueTwoThousandTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cstm_ConstelliumSESeniorUnsecuredNotesIssuedJuneTwoThousandTwentyDueTwoThousandTwentyEightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: