XML 384 R110.htm IDEA: XBRL DOCUMENT
v3.24.1

BORROWINGS - Narrative (Details) - EUR (€) € in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022
Disclosure of detailed information about borrowings [line items] |  |
Undrawn facilities | € 535 | € 543
Secured Inventory Facility |  |
Disclosure of detailed information about borrowings [line items] |  |
Undrawn facilities | 100 |
Money Market Facility |  |
Disclosure of detailed information about borrowings [line items] |  |
Undrawn facilities | € 75 |
Secured Pan-U.S. ABL (due 2026) |  |
Disclosure of detailed information about borrowings [line items] |  |
Debt covenant, percentage of aggregate revolving loan commitments | 10.00% |

X
- Definition Percentage of excess availability vs. aggregate revolving commitment that require an evaluation of compliance. + References No definition available. + Details
Name: | cstm_PercentageOfRevolvingLoanCommitments
Namespace Prefix: | cstm_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2023-01-01 -Paragraph 50 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_50_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_UndrawnBorrowingFacilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=cstm_SecuredInventoryFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=cstm_MoneyMarketFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=cstm_SecuredPanUSABLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |