Corporate Information And Statement Of Ifrs Compliance [Abstract]

Wärtsilä Oyj Abp - Filing #3399937

Concept	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31
Corporate information and statement of IFRS compliance [abstract]
Name of reporting entity or other means of identification	—	Wärtsilä Corporation	—	—
Domicile of entity	—	Helsinki	—	—
Legal form of entity	—	listed company	—	—
Country of incorporation	—	Finland	—	—
Address of entity's registered office	—	Hiililaiturinkuja 2, 00180 Helsinki	—	—
Principal place of business	—	Wärtsilä's operations are global	—	—
Description of nature of entity's operations and principal activities	—	Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets.	—	—
Name of parent entity	—	Wärtsilä	—	—
Name of ultimate parent of group	—	Wärtsilä Corporation	—	—
Statement of IFRS compliance [text block]	—		—	—
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [text block]	—	—	—	—
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [abstract]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Current inventories	1,483,000,000 EUR	—	1,485,000,000 EUR	—
Current trade receivables	1,018,000,000 EUR	—	991,000,000 EUR	—
Current trade payables	793,000,000 EUR	—	686,000,000 EUR	—
Dividends recognised as distributions to owners per share	—	0.44	—	0.32