XML 97 R209.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Pension Plans (Details 3)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Pension Plans [Abstract]      
Type of expected yield from the plan's assets UF + 2,50% annual UF + 2.50% annual UF + 2.50% annual
Type of yield expected from the reimbursement rights UF + 2,50% annual UF + 2.50% annual UF + 2.50% annual