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Note 13 - Impairment Losses - Credits Recovered not Include in Tables (Details) | 12 Months Ended
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Dec. 31, 2018 ARS ($)
Impairment Losses Abstract |
Credits Recovered | $ 359,380,000

X
- Definition The amount of credits recovered that is not include in tables about impairment of financial assets. + References No definition available. + Details
Name: | bfr_Creditsrecovered
Namespace Prefix: | bfr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration