Statement Of Comprehensive Income [Abstract]

mBank S.A. - Filing #6276422

Concept	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	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	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31
Statement of comprehensive income [abstract]
Profit (loss)	103 757 PLN	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1 010 252 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 remeasurements of defined benefit plans	6 252 PLN	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2 002 PLN	—	—	—	—	—	—	—	—	—
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]
Exchange differences on translation [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations	3 043 PLN	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	32,000 PLN	—	—	—	—	—	—	—	—	—
Cash flow hedges [abstract]
Other comprehensive income, net of tax, cash flow hedges	299 988 PLN	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	35 499 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	111 012 PLN	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	71 657 PLN	—	—	—	—	—	—	—	—	—
Other comprehensive income	407 791 PLN	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	38 128 PLN	—	—	—	—	—	—	—	—	—
Comprehensive income	511 548 PLN	6 252 PLN	- PLN	103 831 PLN	111 012 PLN	299 988 PLN	- PLN	- PLN	- PLN	- PLN	3 043 PLN	74,000 PLN	- PLN	511 622 PLN	2 002 PLN	32,000 PLN	972 222 PLN	98,000 PLN	972 124 PLN	71 657 PLN	- PLN	- PLN	35 499 PLN	- PLN	- PLN	1 010 350 PLN	- PLN	- PLN
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	511 622 PLN	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	972 222 PLN	—	—	—	—	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	74,000 PLN	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	98,000 PLN	—	—	—	—	—	—	—	—	—