XML 292 R141.htm IDEA: XBRL DOCUMENT v3.21.1
FINANCIAL RISK MANAGEMENT - Foreign Currency Exposure (Details) - Commodity price risk
12 Months Ended
Dec. 31, 2020
Minimum  
Assets purchased or indexed to foreign currency exposure  
Amount of risk exposure percentage 35.00%
Maximum  
Assets purchased or indexed to foreign currency exposure  
Amount of risk exposure percentage 40.00%