Statement Of Comprehensive Income [Abstract]

mBank S.A. - Filing #6228904

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Statement of comprehensive income [abstract]
Profit (loss)	—	—	—	—	—	—	—	1 178 813 PLN	—	103 757 PLN	—	—	—	—	—	—
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]
Other comprehensive income, net of tax, gains (losses) on revaluation of property, plant and equipment, right-of-use assets and intangible assets	—	—	—	—	—	—	—	11 436 PLN	—	- PLN	—	—	—	—	—	—
Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans	—	—	—	—	—	—	—	7 059 PLN	—	6 252 PLN	—	—	—	—	—	—
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]
Exchange differences on translation [abstract]
Gains (losses) on exchange differences on translation of foreign operations, net of tax	—	—	—	—	—	—	—	4 898 PLN	—	3 043 PLN	—	—	—	—	—	—
Cash flow hedges [abstract]
Other comprehensive income, net of tax, cash flow hedges	—	—	—	—	—	—	—	919 332 PLN	—	299 988 PLN	—	—	—	—	—	—
Financial assets measured at fair value through other comprehensive income [abstract]
Other comprehensive income, net of tax, financial assets measured at fair value through other comprehensive income	—	—	—	—	—	—	—	892 950 PLN	—	111 012 PLN	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	—	—	—	1 788 889 PLN	—	407 791 PLN	—	—	—	—	—	—
Comprehensive income	60,000 PLN	1 788 889 PLN	- PLN	1 178 753 PLN	- PLN	- PLN	2 967 642 PLN	2 967 702 PLN	- PLN	511 548 PLN	74,000 PLN	- PLN	- PLN	103 831 PLN	511 622 PLN	407 791 PLN
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	—	2 967 642 PLN	—	511 622 PLN	—	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	—	60,000 PLN	—	74,000 PLN	—	—	—	—	—	—