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Private pension liabilities (Tables)
12 Months Ended
Dec. 31, 2021
Disclosure of defined benefit plans [abstract]  
Summary of net defined benefit liability (asset)
Changes in the period
20212020
As of January 113,387,913 3,759,090 
Contributions received3,056,032 1,678,532 
Transfer with third party plans16,854,605 7,657,636 
Withdraws(1,468,710)(304,194)
Interest from assets within FIEs91,560 596,849 
As of December 3131,921,400 13,387,913