XML 87 R66.htm IDEA: XBRL DOCUMENT
v3.20.2

Loan Sale and Servicing Activities and Variable Interest Entities Loan Sale and Servicing Activities and Variable Interest Entities (Additional Information) (Details) - Low Income Housing Tax Credit Investments [Member] - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Other tax benefits recognized on low income housing tax credit investments | $ 10 | $ 22
New Accounting Pronouncement, Early Adoption, Effect [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Amortization recognized on low income housing tax credit investments | 47 | 96
Tax credits recognized on low income housing tax credit investments | $ 48 | $ 98

X
- Definition Represents the amount of amortization recognized associated with the adoption of ASU 2014-01 + References No definition available. + Details
Name: | pnc_AmortizationRecognizedLowIncomeHousingTaxCreditInvestments
Namespace Prefix: | pnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the amount of other tax benefits recognized associated with the adoption of ASU 2014-01 + References No definition available. + Details
Name: | pnc_OtherTaxBenefitsRecognizedLowIncomeHousingTaxCreditInvestments
Namespace Prefix: | pnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the amount of tax credits recognized associated with the adoption of ASU 2014-01 + References No definition available. + Details
Name: | pnc_TaxCreditsRecognizedLowIncomeHousingTaxCreditInvestments
Namespace Prefix: | pnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=pnc_LowIncomeHousingTaxCreditInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_NewAccountingPronouncementEarlyAdoptionEffectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |