Name:	pnc_FairValueInputsCreditAndLiquidityDiscount
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Cumulative percentage of likelihood the pool of loans will not be repaid and instead default, used as an input to measure fair value.

No definition available.

Name:	pnc_FairValueInputsCumulativeDefaultRate
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The value of the servicing rights expected to be retained when mortgage loan commitments become closed loans, expressed as a percentage of the loan balance. The value of servicing rights is used as an input to measure fair value.

No definition available.

Name:	pnc_FairValueInputsEmbeddedServicingValue
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of Visa Class A shares to be received for Visa Class B shares upon conversion date, used as an input to measure fair value.

No definition available.

Name:	pnc_FairValueInputsEstimatedConversionFactorClassBSharesIntoClassaShares
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Annual percentage price appreciation of Visa Class A shares, used as an input to measure fair value.

No definition available.

Name:	pnc_FairValueInputsEstimatedGrowthRateVisaClassaSharePrice
Namespace Prefix:	pnc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Expected date when litigation related to Visa Class B common shares will be resolved.

No definition available.

Name:	pnc_FairValueInputsLengthOfLitigationResolutionDate
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Ratio of an entity's stock price to its earnings per share, as an integer. Price earnings (P/E) ratio is used as an input to measure fair value.

No definition available.

Name:	pnc_FairValueInputsMultipleOfEarnings
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Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

The assumed yield spread over the benchmark curve for each instrument is generally intended to incorporate non-interest-rate risks such as credit and liquidity risks as an input to measure fair value.

No definition available.

Name:	pnc_FairValueInputsSpreadOverBenchmarkCurve
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

No definition available.

Name:	us-gaap_AssetsFairValueDisclosureRecurring
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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.

No definition available.

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
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Data Type:	xbrli:stringItemType
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Period Type:	duration

Adjustment to the discount rate used to measure fair value for lack of ability to convert business interests into cash quickly.

Name:	us-gaap_FairValueInputsDiscountForLackOfMarketability
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

Name:	us-gaap_FairValueInputsDiscountRate
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Loss, including interest and principal, incurred on a defaulted security, expressed as a percentage of the original principal balance, used as an input to measure fair value.

Name:	us-gaap_FairValueInputsLossSeverity
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value.

Name:	us-gaap_FairValueInputsPrepaymentRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value.

Name:	us-gaap_FairValueInputsProbabilityOfDefault
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Fair value of financial instrument classified as derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258

Name:	us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Aggregation of the liabilities reported on the balance sheet measured at fair value on a recurring basis by the entity.

No definition available.

Name:	us-gaap_LiabilitiesFairValueDisclosureRecurring
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
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Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_FinancialInstrumentAxis=pnc_LoansHeldForSaleMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	pnc_FairValueMeasurementsTypeAxis=pnc_CommercialMortgagesMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_ValuationTechniqueAxis=pnc_DiscountedCashFlowSpreadOvertheBenchmarkCurveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_ValuationTechniqueAxis=pnc_DiscountedCashFlowMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
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Data Type:	na
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Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_RangeAxis=us-gaap_WeightedAverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_FinancialInstrumentAxis=us-gaap_AvailableforsaleSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	pnc_FairValueMeasurementsTypeAxis=us-gaap_ResidentialMortgageBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_DebtSecurityAxis=us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_ValuationTechniqueAxis=pnc_PricedByThirdPartyVendorUsingDiscountedCashFlowPricingModelMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	pnc_FairValueMeasurementsTypeAxis=us-gaap_AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_ValuationTechniqueAxis=pnc_ConsensusPricingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_HomeEquityMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_FinancialInstrumentAxis=us-gaap_EquityMethodInvestmentsMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_ValuationTechniqueAxis=pnc_MultipleOfAdjustedEarningsMember
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Name:	us-gaap_ValuationTechniqueAxis=pnc_MultipleOfAdjustedEarningsConsensusPricingMember
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Data Type:	na
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Name:	us-gaap_FinancialInstrumentAxis=us-gaap_ServicingContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	pnc_FairValueMeasurementsTypeAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_FinancialInstrumentAxis=us-gaap_OtherAssetsMember
Namespace Prefix:
Data Type:	na
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Name:	pnc_FairValueMeasurementsTypeAxis=pnc_BlackRockSeriesCPreferredStockMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_FinancialInstrumentAxis=us-gaap_DerivativeMember
Namespace Prefix:
Data Type:	na
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Name:	pnc_FairValueMeasurementsTypeAxis=pnc_BlackRockLtipMember
Namespace Prefix:
Data Type:	na
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Name:	pnc_FairValueMeasurementsTypeAxis=pnc_VisaClassBSwapMember
Namespace Prefix:
Data Type:	na
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