Statement Of Changes In Equity [Abstract]

Galp Energia - Filing #5825859

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Purchase of treasury shares	400,000,000 EUR	400,000,000 EUR	0 EUR	0 EUR	0 EUR	0 EUR	0 EUR	400,000,000 EUR	0 EUR	0 EUR	500,000,000 EUR	500,000,000 EUR	500,000,000 EUR	0 EUR	0 EUR	0 EUR	0 EUR	0 EUR	0 EUR	0 EUR
Cancellation of treasury shares	353,000,000 EUR	0 EUR	20,000,000 EUR	0 EUR	0 EUR	380,000,000 EUR	0 EUR	0 EUR	0 EUR	47,000,000 EUR	500,000,000 EUR	0 EUR	0 EUR	0 EUR	458,000,000 EUR	0 EUR	0 EUR	42,000,000 EUR	0 EUR	0 EUR