XML 185 R164.htm IDEA: XBRL DOCUMENT v3.21.1
Financial Instruments Risks - Sensitivity of the Economic Value SEV (Details)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Sensitivity Of The Economic Value Given A Variation Of 100 Basis Points [Abstract]    
Closing 0.38% 0.32%
Minimum 0.17% 0.04%
Maximum 0.47% 1.64%
Average 0.34% 0.77%