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Critical accounting policies: key estimates and judgments (Details Narrative) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Sep. 30, 2014
Dec. 31, 2022
IfrsStatementLineItems [Line Items]    
Key assumptions from the business management plan   Projections relating to the key assumptions are derived from the Strategic Plan and are consistent with market evidence, such as independent macro-economic forecasts, industry analysts and experts. Back testing analysis and feedback process in order to continually improve forecast techniques are also performed.
Medical cost, period of per capita health care benefits paid over used to project growth rates   5 years
Period of price inflation index   30 years
Property, plant and equipment [member]    
IfrsStatementLineItems [Line Items]    
Wrote off capitalized costs $ 2,527