Actuarial gains losses on employee termination benefits All Dimensions [abstract] All Dimensions [line items] Cash and cash equivalents restricted and unrestricted Cash and cash equivalents unrestricted and restricted Cash and deposits attributable to BancoPosta Cash generated by used for financial assets liabilities attributable to financial activities, payments, cards and acquiring and insurance Change in scope of consolidation Change in tax credits Law 77 2020 Change in technical provisions for insurance business and other claim expense Cost of goods and services Employee termination benefits Equity instruments perpetual hybrid bonds Expenses from financial activities Finance income in form of interest Impairment losses and reversals of impairment losses on financial assets Impairment losses reversals of impairment losses on debt instruments, receivables and other assets Impairment losses reversals of impairment losses on financial assets The amount of the impairment loss, the impairment loss or the reversal of value that is recognized in profit or loss in accordance with paragraph 5.5.8 of IFRS 9 and it derives from the application of the provisions on impairment pursuant to section 5.5 of IFRS 9. Impairments reversals of impairments of investments Increase decrease for expected losses Increase decrease in Cash and deposits attributable to BancoPosta Increase decrease in liabilities attributable to financial activities, payments, cards and acquiring and insurance Net cash generated by used for financial assets and tax credits Law 77 2020 attributable to financial activities, payments, cards and acquiring and insurance Net operating revenue Net revenue from Financial Services Non recurring finance income Non recurring income tax expense Proceeds from Repayments of long term borrowings Provisions for employee termination benefits Purchase Sale of treasury shares Restricted cash and cash equivalents at end of year Revenue from Financial Services Revenue from Insurance Services after changes in technical provisions and other claim expenses Revenue from Mail, Parcels and other Revenue from Payments and Mobile Tax credits Law 77 2020 current Tax credits Law 77 2020 non current Unrestricted cash and cash equivalents at end of year Use of provisions for risks and charges BancoPosta RFC reserve member Equity instruments perpetual hybrid bonds member Reserve for investees accounted for using equity method member All Dimensions [table]