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Statement of Changes in Equity - ARS ($)
$ in Millions
Share Capital [member]
Adjustment to Share Capital [member]
Treasury stock [member]
Adjustment to Treasury Stock [member]
Additional Paid-in Capital [member]
Cost Treasury Stock [member]
Legal Reserve [member]
Voluntary Reserve [member]
Other Reserve [member]
Other Comprehensive Loss [member]
Retained Earnings [member]
Total
Beginning balance at Dec. 31, 2017 $ 899 $ 37,036 $ 7 $ 150 $ 482   $ 320 $ 768   $ (279) $ 18,796 $ 58,179
Change of accounting standard - Adjustment by model of expected losses IFRS 9                     (126) (126)
Balance at December 31, 2017 restated 899 37,036 7 150 482   320 768   (279) 18,670 58,053
Other reserve constitution - Share-bases compensation plan                 $ 22     22
Payment of Other reserve constitution - Share-bases compensation plan   2   (2) 22       $ (22)      
Acquisition of own shares (16) (350) 16 350   $ (2,237)           (2,237)
Other comprehensive loss for the year                   (8)   (8)
Profit for the year                     8,995 8,995
Ending balance at Dec. 31, 2018 883 36,688 23 498 504 (2,237) 320 768   (287) 27,665 64,825
Ordinary and Extraordinary Shareholders' Meeting held on April 24, 2019             1,435 26,230     (27,665)  
Acquisition of own shares (8) (284) 8 284   (816)           (816)
Other comprehensive loss for the year                   (7)   (7)
Profit for the year                     16,518 16,518
Ending balance at Dec. 31, 2019 875 36,404 31 782 504 (3,053) 1,755 26,998   (294) 16,518 80,520
Ordinary and Extraordinary Shareholders' Meeting held on April 24, 2019             826 15,692     (16,518)  
Other reserve constitution - Share-bases compensation plan                   76   76
Profit for the year                     (17,698) (17,698)
Ending balance at Dec. 31, 2020 $ 875 $ 36,404 $ 31 $ 782 $ 504 $ (3,053) $ 2,581 $ 42,690   $ (218) $ (17,698) $ 62,898