Statement Of Comprehensive Income [Abstract]

Magnitogorsk Iron & Steel Works - Filing #1611127

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	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)	3,000,000 USD	- USD	- USD	- USD	3,118,000,000 USD	3,121,000,000 USD	3,118,000,000 USD	603,000,000 USD	- USD	604,000,000 USD	- USD	1,000,000 USD	- USD	603,000,000 USD
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	—	—	—	—	—	2,000,000 USD	—	—	—	- USD	—	—	—	—
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	—	—	—	—	—	17,000,000 USD	—	—	—	261,000,000 USD	—	—	—	—
Other comprehensive income	- USD	- USD	- USD	33,000,000 USD	31,000,000 USD	31,000,000 USD	2,000,000 USD	- USD	- USD	840,000,000 USD	837,000,000 USD	3,000,000 USD	- USD	837,000,000 USD
Comprehensive income	3,000,000 USD	- USD	- USD	33,000,000 USD	3,087,000,000 USD	3,090,000,000 USD	3,120,000,000 USD	603,000,000 USD	- USD	236,000,000 USD	837,000,000 USD	2,000,000 USD	- USD	234,000,000 USD
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	3,087,000,000 USD	—	—	—	234,000,000 USD	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	3,000,000 USD	—	—	—	2,000,000 USD	—	—	—	—