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 | srt:SecuritiesSoldUnderAgreementsToRepurchaseAverageRatePaid | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift |
 | srt:CommercialPaperAverageRatePaid | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift |
 | srt:ShortTermDebtOtherAverageRatePaid | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift |
 | srt:LongTermDebtAverageRatePaid | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift |
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 | srt:DemandDepositLiabilitiesInterestBearingAverageRatePaid | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftDistributionOfAssetsLiabilitiesAndStockholdersEquityTable |
 | srt:TimeDepositLiabilitiesAverageRatePaid | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftDistributionOfAssetsLiabilitiesAndStockholdersEquityTable |
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