Statement Of Changes In Equity [Abstract]

KGHM Polska Miedź S.A. - Filing #6226567

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
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Increase (decrease) through transfer between revaluation surplus and retained earnings, equity	- PLN	- PLN	- PLN	- PLN	18,000,000 PLN	18,000,000 PLN	18,000,000 PLN
Increase (decrease) through transactions with owners, equity	- PLN	- PLN	- PLN	- PLN	300,000,000 PLN	300,000,000 PLN	300,000,000 PLN