Basis of Preparation of the Financial Statements (Tables)

12 Months Ended

Dec. 31, 2020

Disclosure of basis of preparation [Abstract]

Schedule of Exchange Rates and Known Consumer Price Indexes

Exchange rates and known Consumer Price Indexes are as follows:

	Exchange rates of US$			Consumer Price Index (points)*
As of December 31, 2020		3.215			223.34
As of December 31, 2019		3.456			224.67
As of December 31, 2018		3.748			224.00
Change during the year:
Year ended December 31, 2020		(6.97	)%		(0.59	)%
Year ended December 31, 2019		(7.79	)%		0.30	%
Year ended December 31, 2018		8.10	%		1.20	%

*According to 1993 base index.