Statement Of Changes In Equity [Abstract]

mBank S.A. - Filing #6069935

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	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]
Increase (decrease) through appropriation of retained earnings, equity	- PLN	- PLN	24 054 PLN	- PLN	- PLN	- PLN	24 054 PLN	- PLN	- PLN	- PLN	- PLN	702 691 PLN	- PLN	- PLN	- PLN	- PLN	- PLN	702 691 PLN
Increase (decrease) through transactions with owners, equity	- PLN	14 320 PLN	- PLN	9 489 PLN	127,000 PLN	- PLN	4 704 PLN	- PLN	14 320 PLN	127,000 PLN	11 047 PLN	- PLN	- PLN	- PLN	- PLN	11 280 PLN	11 047 PLN	360,000 PLN