Inventories - Disclosure of amounts due from customers for contract work (Details) - EUR (€) € in Millions	Dec. 31, 2024	Dec. 31, 2023
Subclassifications of assets, liabilities and equities [abstract]
Aggregate amount of costs incurred and recognized profits (less recognized losses) to date	€ 0	€ 766
Less: Progress billings	0	659
Construction contracts, net asset/(liability)	0	107
Construction contract assets	0	214
Construction contract liabilities	€ 0	€ 107

The amount of an entity’s right to consideration in exchange for goods or services that the entity has transferred to a customer that is unconditional. A right to consideration is unconditional if only the passage of time is required before payment of that consideration is due.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2024-01-01
-Paragraph 105
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&anchor=para_105&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2024-01-01
-Paragraph 116
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&anchor=para_116_a&doctype=Standard
-URIDate 2024-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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

- Definition

Costs Incurred And Recognised Profits (Net Of Recognised Losses)

+ References

No definition available.

+ Details

Name:	stellantis_CostsIncurredAndRecognisedProfitsNetOfRecognisedLosses
Namespace Prefix:	stellantis_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Current Receivables From Contracts With Customers, Contract Work

+ References

No definition available.

+ Details

Name:	stellantis_CurrentReceivablesFromContractsWithCustomersContractWork
Namespace Prefix:	stellantis_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Gross Amount Due To Customers For Contract Work As Liability

+ References

No definition available.

+ Details

Name:	stellantis_GrossAmountDueToCustomersForContractWorkAsLiability
Namespace Prefix:	stellantis_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Progress Billings

+ References

No definition available.

+ Details

Name:	stellantis_ProgressBillings
Namespace Prefix:	stellantis_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant