Statement Of Changes In Equity [Abstract]

mBank S.A. - Filing #6069952

Concept	2024-01-01 to 2024-12-31	As at 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	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 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	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	10 654 234 PLN	—	—	—	—	3 455 813 PLN	169 988 PLN	- PLN	—	16 266 994 PLN	—	1 500 000 PLN	—	17 766 994 PLN	256 286 PLN	—	2 243 245 PLN	—	—	13 737 226 PLN	10 625 476 PLN	24 054 PLN	—	—	—	—	2 039 PLN	3 446 324 PLN	—	169 861 PLN	—	- PLN	13 735 187 PLN	—	530 528 PLN	12 715 031 PLN	11 328 527 PLN	702 691 PLN	2 030 PLN	1 517 613 PLN	- PLN	3 435 044 PLN	169 734 PLN	12 713 001 PLN
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	2 243 245 PLN	—	- PLN	2 243 245 PLN	- PLN	- PLN	—	—	—	123,000 PLN	—	2 243 368 PLN	—	- PLN	—	—	- PLN	—	24 058 PLN	24 054 PLN	—	—	—	- PLN	24 054 PLN	4,000 PLN	- PLN	—	—	- PLN	—	- PLN	—	—	- PLN	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	- PLN	—	- PLN	274 242 PLN	- PLN	- PLN	—	—	—	- PLN	—	274 242 PLN	—	- PLN	—	—	274 242 PLN	—	987 085 PLN	- PLN	—	—	—	- PLN	987 085 PLN	- PLN	- PLN	—	—	- PLN	—	- PLN	—	—	987 085 PLN	—	—	—	—	—	—	—	—	—	—
Comprehensive income	2 243 245 PLN	—	- PLN	2 517 487 PLN	- PLN	- PLN	—	—	—	123,000 PLN	—	2 517 610 PLN	—	- PLN	—	—	274 242 PLN	—	1 011 143 PLN	24 054 PLN	—	—	—	- PLN	1 011 139 PLN	4,000 PLN	- PLN	—	—	- PLN	—	- PLN	—	—	987 085 PLN	—	—	—	—	—	—	—	—	—	—
Issue of equity	- PLN	—	- PLN	127,000 PLN	127,000 PLN	- PLN	—	—	—	- PLN	—	127,000 PLN	—	- PLN	—	—	- PLN	—	127,000 PLN	- PLN	—	—	—	- PLN	127,000 PLN	- PLN	- PLN	—	—	127,000 PLN	—	- PLN	—	—	- PLN	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	- PLN	—	- PLN	- PLN	- PLN	- PLN	—	—	—	2 162 PLN	—	2 162 PLN	—	- PLN	—	—	- PLN	—	5,000 PLN	- PLN	—	—	—	- PLN	- PLN	5,000 PLN	- PLN	—	—	- PLN	—	- PLN	—	—	- PLN	—	—	—	—	—	—	—	—	—	—