Disclosure Of Fair Value Measurement [Text Block]

mBank S.A. - Filing #6228923

Concept	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01
Disclosure of fair value measurement [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of assets [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of assets [abstract]
Disclosure of fair value measurement of assets [line items]
Assets	—	—	199 538 885 PLN	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	178 871 617 PLN	—	—	—	—	158 353 028 PLN	—	—	—
Reconciliation of changes in fair value measurement, assets [abstract]
Disclosure of fair value measurement of liabilities [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of liabilities [abstract]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	—	—	185 820 969 PLN	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	162 196 550 PLN	—	—	—	—	142 199 723 PLN	—	—	—
Reconciliation of changes in fair value measurement, liabilities [abstract]
Disclosure of fair value measurement of equity [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of equity [abstract]
Disclosure of fair value measurement of equity [line items]
Equity	12 505 247 PLN	1 178 753 PLN	13 717 916 PLN	1 204 388 PLN	13 716 050 PLN	3 424 404 PLN	1 866 PLN	169 540 PLN	584 501 PLN	12 501 597 PLN	- PLN	169 468 PLN	16 675 067 PLN	3 417 567 PLN	16 673 133 PLN	1 934 PLN	1 934 PLN	16 673 133 PLN	169 468 PLN	103 831 PLN	12 397 766 PLN	584 501 PLN	3 417 567 PLN	16 675 067 PLN	- PLN	12 394 775 PLN	176 710 PLN	169 401 PLN	16 153 305 PLN	2 002 PLN	3 410 417 PLN	16 151 303 PLN
Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract]