XML 442 R31.htm IDEA: XBRL DOCUMENT
v3.22.0.1

NON-CASH INVESTING AND FINANCING TRANSACTIONS | 12 Months Ended
--- | ---
Dec. 31, 2021
Disclosure of cash flow statement [Abstract] |
NON-CASH INVESTING AND FINANCING TRANSACTIONS | NOTE 24 - NON-CASH INVESTING AND FINANCING TRANSACTIONS Property, plant and equipment acquired through leases or financed by third parties amounted to €18 million, €66 million and €75 million for the years ended December 31, 2021, 2020 and 2019, respectively. These leases and financings are excluded from the Statement of Cash Flow as they are non-cash investing transactions. Fair values of vested Restricted Stock Units and Performance Stock Units amounted to €15 million, €14 million and €8 million for the years ended December 31, 2021, 2020 and 2019, respectively. They are excluded from the Statement of Cash flows as non-cash financing activities.

X
- Definition Disclosure of cash flow statement + References No definition available. + Details
Name: | cstm_DisclosureofcashflowstatementAbstract
Namespace Prefix: | cstm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for a statement of cash flows. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Section Presentation of a statement of cash flows -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS07_g10-17_TI -URIDate 2021-03-24 + Details
Name: | ifrs-full_DisclosureOfCashFlowStatementExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration