Principal Balance, Delinquent Loans and Net Charge-offs Related to Serviced Loans For Others Principal Balance Delinquent Loans And Net Charge Offs Related To Serviced Loans [Table Text Block] This table represents principal balance, delinquent loans (loans 90 days or more past due), and net charge-offs related to serviced loans. Commodity contracts: Commodity Contract [Member] ACL at acquisition Financing Receivable, Purchased Seasoned Loan, Allowance for Credit Loss at Acquisition Date Financing Receivable, Purchased Seasoned Loan, Allowance for Credit Loss at Acquisition Date Constant default rate Measurement Input, Default Rate [Member] Less: Cash collateral received/paid, derivative asset fair value Cash Collateral Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset Award Timing Predetermined Award Timing Predetermined [Flag] Amortization recognized Investment Program, Proportional Amortization Method, Applied, Amortization Expense Tax Expense (Benefit) OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax Entity File Number Entity File Number Tabular List, Table Tabular List [Table Text Block] Income tax benefit (expense) related to items of other comprehensive income Total other comprehensive income (loss) Other Comprehensive Income (Loss), Tax Decline in fair value from 10% adverse change in adjusted spread Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Other Assumption Financing receivable, measurement input Financing Receivable, Measurement Input Financing Receivable, Measurement Input SEC Schedule, 12-09, Reserve, Legal SEC Schedule, 12-09, Reserve, Legal [Member] Recently Adopted Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Deposit account fees Deposit Account Fees [Member] Deposit Account Fees [Member] Derivative asset, fair value offset amount Derivative Asset Setoff Right Amount The amount of setoff associated with the entity's recognized derivative assets with corresponding derivative liability amounts subject to an enforceable master netting agreement or similar agreement. Additional Fair Value Information Related to Other Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Securities available-for-sale Investment Securities Debt Securities [Member] Weighted average payment deferral term Financing Receivable, Modified, Weighted Average Payment Deferral Financing Receivable, Modified, Weighted Average Payment Deferral Amounts related to interest settlements on derivatives Interest Settlements on Derivatives Interest Settlements on Derivatives Measurement Basis [Axis] Measurement Basis [Axis] Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Net credit card fees Net Credit Card Fees [Member] Net Credit Card Fees Fee-Based Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Preferred stock cash dividends paid Payments of Ordinary Dividends, Preferred Stock and Preference Stock Recoveries Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery Schedule of Stock by Class [Table] Stock, Class of Stock [Table] Gains (losses) - FVO: changes in fair value Fair Value, Option, Changes in Fair Value, Gain (Loss) After 10 Years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost Less: Cash collateral received/paid, derivative liability fair value Cash Collateral Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset Adjustment to Compensation, Amount Adjustment to Compensation Amount Concentration risk, percentage Concentration Risk, Percentage Other borrowed funds Proceeds from (Repayments of) Short-Term Debt, Maturing in Three Months or Less Other assets Increase (Decrease) in Other Operating Assets Employee Stock Option Share-Based Payment Arrangement, Option [Member] Net gains (losses) included in earnings (realized and unrealized) relating to Level 3 assets and liabilities Fair Value Measurements With Unobservable Inputs Reconciliation Recurring Basis Net Gain Loss Included In Earnings This element represents net gains or losses for the period (realized and unrealized), arising from assets and liabilities measure at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value. Net income attributable to common shareholders Net Income (Loss) Available To Common Stockholders Net income (loss) available to common stockholders, before adjustments for dividends and undistributed earnings allocated to nonvested restricted shares Asset Pledged as Collateral without Right Asset Pledged as Collateral without Right [Member] Cash dividends declared - Common Dividends, Common Stock, Cash Total shareholders’ equity Equity, Attributable to Parent Measurement Frequency [Axis] Measurement Frequency [Axis] Repayment plan Repayment Plans [Member] Repayment Plans Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-Sale [Table] Insider Trading Policies and Procedures [Line Items] Decline in fair value from 20% adverse change in interest rate Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Discount Rate Common stock, authorized (shares) Common Stock, Shares Authorized Financial Instruments, Financial Assets, Balance Sheet Groupings Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Common stock activity (in shares) Stock Issued During Period, Shares, New Issues Fair Value, Recurring Fair Value, Recurring [Member] Cover [Abstract] Cover [Abstract] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Portion at Fair Value, Fair Value Disclosure Portion at Fair Value Measurement [Member] Maximum Maximum [Member] Less: Net income attributable to noncontrolling interests Net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Brokerage fees Brokerage Fees [Member] Brokerage Fees [Member] Total Debt Securities, Available-for-Sale, Unrealized Loss Position Repayments/maturities Repayments Maturities Investing [Abstract] Repayments Maturities Investing [Abstract] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Unrealized gains/losses for the period on liabilities held on Consolidated Balance Sheet Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss) Debt Instrument [Line Items] Debt Instrument [Line Items] Equity [Line Items] Equity [Line Items] [Line Items] for Equity [Table] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Net unrealized losses, related to securities transferred at fair value to held to maturity at a point in time OCI, Debt Securities, Available-For-Sale, Transfer To Held-To-Maturity, Adjustment From AOCI For Amortization Of Gain (Loss) OCI, Debt Securities, Available-For-Sale, Transfer To Held-To-Maturity, Adjustment From AOCI For Amortization Of Gain (Loss) Series B Series B Preferred Stock [Member] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Other assets Other Assets [Member] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Weighted average extended contract term Financing Receivable, Modified, Weighted Average Term Increase from Modification Income before income taxes and noncontrolling interests Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Revolving Loans Converted to Term Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Operating Segments Operating Segments [Member] Card and cash management Cash And Cash Management Fees [Member] Cash And Cash Management Fees Less: Comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Total interest expense Interest Expense, Operating Maximum length of time hedged in cash flow hedge Maximum Length of Time Hedged in Cash Flow Hedge Document Fiscal Period Focus Document Fiscal Period Focus Fair Value Option - Fair Value and Principal Balances Fair Value Option, Disclosures [Table Text Block] Award Timing Method Award Timing Method [Text Block] Over-the-counter cleared Over The Counter Cleared [Member] Over The Counter Cleared [Member] Total Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Award Type Award Type [Axis] Unfunded lending related commitments Unfunded Loan Commitments And Letters Of Credit Fair Value Disclosure This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents unfunded commitments and letters of credit as of the balance sheet date. Hedging Relationship [Domain] Hedging Relationship [Domain] Parent Company Parent Company [Member] Interest-bearing deposits Interest Bearing Deposit Liabilities [Member] Interest Bearing Deposit Liabilities Trading Symbol Trading Symbol Sales Proceeds from Investing Activity [Abstract] Accrued expenses and other liabilities Accrued Liabilities and Other Liabilities Entity Address, City or Town Entity Address, City or Town Range of possible loss not accrued Loss Contingency, Range of Possible Loss, Portion Not Accrued Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Income Statement Location [Domain] Statement of Income Location, Balance [Domain] Allowance for Credit Losses Credit Loss, Financial Instrument [Policy Text Block] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Business combination, consideration transferred Total consideration Business Combination, Consideration Transferred Entity Emerging Growth Company Entity Emerging Growth Company Low Income Housing Tax Credit And Market Tax Credit Low Income Housing Tax Credit And Market Tax Credit [Member] Low Income Housing Tax Credit And Market Tax Credit Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Derivatives Derivative, Gain (Loss) on Derivative, Net Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Total noninterest income Noninterest income Noninterest Income Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Net change in federal funds sold and resale agreements Proceeds from (Payments for) Federal Funds Sold and Securities Purchased under Agreements to Resell, Net Senior debt Proceeds From Sales Issuances Of Bank Notes And Senior Debt The cash inflow from the sales/issuances of Bank notes and Senior debt Net change in Net Change Financing [Abstract] Net changes in [Abstract] Unrealized losses Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss Other assets, fair value Other assets Other Assets, Fair Value Disclosure Commercial mortgage servicing rights Commercial Mortgage Serving Rights [Member] Commercial Mortgage Serving Rights Allowance for credit loss Allowance for credit loss Financing Receivable, Allowance for Credit Loss And Off-Balance Sheet, Credit Loss, Liability Total allowance for credit losses related to loans, including the allowance for loan and lease losses and allowance for unfunded lending related commitments Noninterest Expense Noninterest Expense [Abstract] Cash and due from banks Cash and Due from Banks Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Total recurring assets net of recurring liabilities - fair value Fair Value, Net Asset (Liability) Treasury stock activity (in shares) Stock Issued During Period, Shares, Treasury Stock Reissued And Share-Based Payment Arrangement, After Forfeiture Stock Issued During Period, Shares, Treasury Stock Reissued And Share-Based Payment Arrangement, After Forfeiture Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Standby letters of credit and participations in standby letters of credit - Liability carrying amount Guarantor Obligations, Current Carrying Value Available-for-sale, fair value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling Maturity, Fair Value [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Weighted average interest rate reduction Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification Pledged Status [Domain] Pledged Status [Domain] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Acquired gross charge-offs Acquired gross charge-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Business Combination, Writeoff Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Business Combination, Writeoff Investment securities Investment Securities Interest and Dividend Income, Securities, Operating Income taxes Income Tax Expense (Benefit) Other Other Assets Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Servicing asset, measurement input Servicing Asset, Measurement Input Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Designated as Hedging Instruments under GAAP Designated as Hedging Instrument Designated as Hedging Instrument [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Hedging Relationship [Axis] Hedging Relationship [Axis] Other internal credit metrics Other Internal Credit Metrics [Member] Cash and securities pledged to collateralize net derivative liabilities Cash And Securities Pledged To Collateralize Net Derivative Liabilities Represents amount of cash, and if applicable, U.S. government securities and/or mortgage-backed securities, pledged under master netting and other collateral agreements to collateralize net derivative liabilities owed to counterparties. Commercial and industrial Commercial And Industrial [Member] Commercial And Industrial [Member] Derivative liability, fair value offset amount Derivative Liability Setoff Right Amount 1 The amount of setoff associated with the entity's recognized derivative liabilities with corresponding derivative asset amounts subject to an enforceable master netting agreement or similar agreement. Purchase price Financing Receivable, Purchased with Credit Deterioration, Amount at Purchase Price Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Other Lending And Deposit Services, Other [Member] Lending And Deposit Services, Other Acquisition Activity Mergers, Acquisitions and Dispositions Disclosures [Text Block] Net cash paid for acquisition Net cash paid for acquisition Payments to Acquire Businesses, Net of Cash Acquired All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Preferred stock dividends Preferred Stock Dividends, Income Statement Impact Commitments and Contingencies Disclosure [Abstract] Time and Payoffs Changes In Fair Value Time And Payoffs [Member] Represents decrease in MSR value due to passage of time, including the impact of both regularly scheduled loan principal payments and loans that were paid down or paid off during the period. OREO, foreclosed and other assets OREO and Foreclosed Assets [Member] OREO and Foreclosed Assets [Member] FirstBank Acquisition FirstBank Acquisition [Member] FirstBank Acquisition Net cash provided (used) by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Goodwill period increase Goodwill, Period Increase (Decrease) Other commitments Other Commitment [Member] Investment securities – available-for-sale Fair Value Total Debt Securities, Available-for-Sale, Excluding Accrued Interest Other Reclassification Activities Other Reclassification Activities [Member] Other Reclassification Activities Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Subsequent Event Subsequent Event [Member] Net interest income Net interest income Interest Income (Expense), Operating Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Other borrowed funds Other Borrowed Funds [Member] Derivative liability, fair value Gross Fair Value Derivative Liability, Subject to Master Netting Arrangement, before Offset Swaps Swap [Member] Assets Business Combination, Recognized Asset Acquired, Asset [Abstract] Equity Components [Axis] Equity Components [Axis] Year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Restricted stock acquisition consideration Stock Issued During Period, Value, Restricted Stock Award, Gross Fair Value and Unpaid Principal Balance of Loans Acquired Schedule Of Fair Value and Unpaid Principal Balance of Loans Acquired [Table Text Block] Schedule Of Fair Value and Unpaid Principal Balance of Loans Acquired Less than 660 FICO Score, Less Than 660 [Member] FICO Score, Less Than 660 Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Non-credit discount Financing Receivable, Purchased Seasoned Loan, Discount (Premium) Financing Receivable, Purchased Seasoned Loan, Discount (Premium) Segment reporting, number of segments Number of Reportable Segments Tax credit investments and other Tax Credit Investments And Other [Member] Commercial real estate Commercial Real Estate [Member] Transfer from loans to foreclosed assets Transfer from loans to foreclosed assets Transfer from loans to foreclosed assets. Percentage of total loans, nonaccrual, past due Financing Receivable, Nonaccrual, Percent Past Due Entity Address, State or Province Entity Address, State or Province Net loans (excludes leases) Net Loans Excluding Leases Fair Value Disclosure Represents loans, excluding leases, which are not already measured at fair value on our our financial statements. Cumulative default rate Measurement Input, Cumulative Default Rate [Member] Measurement Input, Cumulative Default Rate Credit card and other consumer Credit Card And Other Consumer [Member] Credit Card And Other Consumer Total interest income Interest and Dividend Income, Operating Financing Receivables Period Past Due [Domain] Financial Asset, Aging [Domain] Loans, fair value Loans Loans Receivable, Fair Value Disclosure After 5 Years through 10 Years After Five Years Through Ten Years [Member] Represents contractual maturities after five years through ten years Individual: Individual [Axis] Nonperforming assets to total assets Ratio Of Nonperforming Assets To Total Assets Reflects the percentage derived from dividing total nonperforming assets by total assets. Less than 80% Debt-to-Value Ratio, Less than 80 Percent [Member] Common stock cash dividends paid Payments of Ordinary Dividends, Common Stock Loans held for sale and related securitization activity Increase (Decrease) in Loan, Held-for-Sale Liabilities, Total Liabilities, Total [Member] PNC Risk of Loss Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Interest Rate Reduction, Payment Delay and Term Extension Interest Rate Reduction, Payment Delay, And Term Extension [Member] Interest Rate Reduction, Payment Delay, And Term Extension Greater than or equal to 780 FICO Score, Greater Than Or Equal To 780 [Member] FICO Score, Greater Than Or Equal To 780 Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Leases Lessor, Sales-type Leases [Text Block] Entity Interactive Data Current Entity Interactive Data Current 4 to 5 years Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Five Carrying value of mortgage backed securities held Carrying Value Of Mortgage Backed Securities Held Securities held where we transferred and/or serviced loans to a securitization special purpose entity (SPE) and we hold securities issued by that SPE. Gross charge-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Residential and commercial mortgage Commercial And Residential Mortgage Banking Fees [Member] Commercial And Residential Mortgage Banking Fees Home equity Home Equity Line of Credit [Member] Financing Receivable [Line Items] Financing Receivable, Modified [Line Items] Interest Income Interest and Dividend Income, Operating [Abstract] Total noninterest expense Total noninterest expense Noninterest Expense Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Payment Delay Payment Deferral [Member] Deposits Interest Expense, Deposits Noninterest Income Noninterest Income [Abstract] Treasury stock activity Stock Issued During Period, Value, Treasury Stock Reissued And Share-Based Payment Arrangement, After Forfeiture Stock Issued During Period, Value, Treasury Stock Reissued And Share-Based Payment Arrangement, After Forfeiture Nonperforming assets to total loans, OREO, foreclosed and other assets Ratio Of Nonperforming Assets To Total Loans And Foreclosed And Other Assets Reflects the percentage derived from dividing total nonperforming assets by total loans, OREO and foreclosed assets. PCD Loan Activity Schedule Of Financing Receivable, Purchased With Credit Deterioration [Table Text Block] Schedule Of Financing Receivable, Purchased With Credit Deterioration Federal funds purchased and repurchase agreements Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net Entity Central Index Key Entity Central Index Key PEO Name PEO Name Schedule of the Total Borrowed Funds Schedule of Maturities of Long-Term Debt [Table Text Block] Total revenue Total revenue Revenues Derivative instruments not designated as hedging instruments gain (loss), net Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Sales/issuances Sales Financing [Abstract] Sales/ issuances [Abstract] Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Credit Quality Indicators By Loan Class Financing Receivable Credit Quality Indicators [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value LIHTC, liabilities Investment Program, Proportional Amortization Method, Elected, Commitment Noninterest-bearing Noninterest-Bearing Deposit Liabilities Investment Securities Summary Investment Securities [Table Text Block] Summarization of information required and determined to be disclosed concerning Investment Securities which consist of all investments in certain debt and equity securities not classified as trading securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. Asset management fees Asset Management Fees [Member] Asset Management Fees Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] After 5 Years through 10 Years Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years Held-to-maturity, fair value Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value, Rolling Maturity [Abstract] Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] Other assets Other Assets Additional Fair Value Information Represents other assets which are not already measured at fair value on our our financial statements. Subsequent Event Type [Axis] Subsequent Event Type [Axis] Interest-bearing deposits Net Change Interest-Bearing Deposits, Domestic Cumulative Fair Value Hedge Adjustment included in the Carrying Value of Hedged Items Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Mortgage Servicing Rights Acquisition [Axis] Mortgage Servicing Rights Acquisition [Axis] Information by type of acquisition of MSR. Fair Value Option, Disclosures [Table] Fair Value Option, Disclosures [Table] Standby bond purchase agreements Guarantee of Indebtedness of Others [Member] Residential Mortgage Loan Servicing Assets - Key Valuation Assumptions Schedule Of Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Servicing Liabilities Residential Mortgage Loan Servicing Assets [Table Text Block] A sensitivity analysis or stress test showing the hypothetical effect on the fair value of residential mortgage servicing rights of two or more unfavorable variations from the expected levels for each key assumption that is reported, independently determined from any change in another key assumption, and a description of the objectives, methodology, and limitations of the sensitivity analysis or stress test. Debt-to-Value [Domain] Debt-to-Value [Domain] Less: Net realized gains (losses) reclassified to earnings Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Residential mortgage- backed non-agency Residential mortgage-backed non-agency securities Residential Mortgage-Backed Securities, Issued by Private Enterprises [Member] Residential Mortgage-Backed Securities, Issued by Private Enterprises Mortgage-Backed Securitizations Mortgage-Backed Securitizations [Member] Involvement with securitization special purpose entities (SPEs) where we transferred to and/or serviced loans for a SPE and we hold securities issued by that SPE. Entity Address, Address Line One Entity Address, Address Line One Offsetting Assets and Liabilities [Line Items] Offsetting Assets and Liabilities [Line Items] [Line Items] for Offsetting Assets and Liabilities [Table] Entity Address, Address Line Two Entity Address, Address Line Two Accumulated Other Comprehensive Income (Loss) Total AOCI Attributable to Parent [Member] Accrued expenses and other liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Revolving Loans Converted to Term Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Common and Preferred stock issuances for acquisition Stock Issued Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Off-Balance Sheet, Credit Loss, Liability [Roll Forward] Off-Balance-Sheet, Credit Loss, Liability [Roll Forward] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Financial Derivatives Derivative Instruments and Hedging Activities Disclosure [Text Block] Borrowed funds Borrowed Funds Fair Value Disclosure This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents borrowed funds as of the balance sheet date. Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Other liabilities Other Liabilities [Member] Fair Value as of Grant Date Award Grant Date Fair Value Nature of Expense [Axis] Nature of Expense [Axis] Fair Value Option Eligible Item Or Group [Domain] Fair Value Option Eligible Item Or Group [Domain] Year five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Loans held for sale Loans Held For Sale [Member] Loans Held For Sale Contractual Rates and Maturity Dates of Borrowings Schedule of Long-Term Debt Instruments [Table Text Block] Personnel Labor and Related Expense Mortgage-backed Securities Non-agency Mortgage-Backed Securities, Issued by Private Enterprises [Member] Document Quarterly Report Document Quarterly Report Unrealized loss position less than 12 months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Fair Value Measurements - Recurring Quantitative Information Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Axis] FirstBank Holding Company FirstBank Holding Company [Member] FirstBank Holding Company Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Fair value option aggregate difference assets Fair Value Option Aggregate Difference Assets For assets for which the fair value option has been elected, this item represents the difference between the fair value and the aggregate unpaid principal balance for those assets. Loans Insured or Guaranteed by Government Authorities [Domain] Loans Insured or Guaranteed by Government Authorities [Domain] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Cash paid to acquire Cash paid Payments to Acquire Businesses, Gross Non-PEO NEO Non-PEO NEO [Member] Servicing fees Cash Flows Between Transferor and Transferee, Servicing Fees Federal Home Loan Bank advances Advance from Federal Home Loan Bank Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Securities available-for-sale Proceeds From Sale Of Debt Securities, Available-For-Sale, Net Of Failed Sales Proceeds From Sale Of Debt Securities, Available-For-Sale, Net Of Failed Sales Unrealized gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax All Award Types Award Type [Domain] Other changes in loans, net Payments for (Proceeds from) Loans Receivable Noncontrolling interests Equity, Attributable to Noncontrolling Interest Equity Awards Adjustments Equity Awards Adjustments [Member] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Compensation Amount Outstanding Recovery Compensation Amount Financial derivatives Derivative Financial Instruments, Liabilities [Member] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Foreign Exchange Contract Foreign Exchange Contract [Member] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Fair Value Estimate of Fair Value Measurement [Member] Cash and securities held to collateralize net derivative assets Cash And Securities Held To Collateralize Net Derivative Assets Represents amount of cash, and if applicable, U.S. government securities and/or mortgage-backed securities, held under master netting and other collateral agreements to collateralize net derivative assets due from counterparties. MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Fair Value, Option, Quantitative Disclosures [Line Items] Fair Value, Option, Quantitative Disclosures [Line Items] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Unearned income, unamortized deferred fees and costs on originated loans, and premiums or discounts on purchased loans Financing Receivable, Deferred Commitment Fee Financing Receivable, Past Due [Line Items] Financing Receivable, Past Due [Line Items] LIHTC, assets Investment, Proportional Amortization Method, Elected, Amount Subordinated debt Proceeds from Issuance of Subordinated Long-Term Debt Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Basis adjustments - Fair value accounting hedges Basis Adjustment Related To Fair Value Accounting Hedges Represents the basis adjustment related to fair value accounting hedges Common and treasury stock Proceeds From Issuance Of Common And Treasury Stock The cash inflow from the additional capital contribution to the entity and from the issuance of an equity stock that has been previously reacquired by the entity. Financial Instruments [Domain] Financial Instruments [Domain] Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Other Off-Balance-Sheet, Credit Loss, Liability, Other Credit Loss Expense (Reversal) Off-Balance-Sheet, Credit Loss, Liability, Other Credit Loss Expense (Reversal) From loans sold with servicing retained Originated MSRs [Member] Additions to mortgage servicing rights from loans sold with servicing retained Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Included in other comprehensive income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Residential and commercial mortgage Residential And Commercial Mortgage Revenue Residential And Commercial Mortgage Revenue Decline in fair value from 10% adverse change in prepayment rate Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Prepayment Speed Finite-Lived Intangible Assets by Major Class [Axis] Derivative Business [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Repurchases of previously transferred loans Cash Flows Between Transferor and Transferee, Purchases of Previously Transferred Financial Assets Minimum Minimum [Member] Allowances for investment securities and other financial assets Debt Securities, Available-For-Sale And Held-To-Maturity, And Other Financial Assets, Allowance for Credit Loss Debt Securities, Available-For-Sale And Held-To-Maturity, And Other Financial Assets, Allowance for Credit Loss Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Company Selected Measure Name Company Selected Measure Name Fair Value Option Nonaccrual Loans Fair Value Option Nonaccrual Loans [Member] Fair Value Option Nonaccrual Loans [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Borrowed Funds Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Assets Assets [Member] Other comprehensive income (loss), before tax and net of reclassifications into Net income Other Comprehensive Income (Loss), before Tax Net income attributable to diluted common shareholders Net Income (Loss) Available to Common Stockholders, Diluted Collateral [Domain] Collateral Held [Domain] Equity investments Equity investments Carrying value of equity investments accounted for at cost, at fair value, and under the equity method of accounting as of the balance sheet date. Diluted (in shares) Diluted weighted-average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Net loans Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financing Receivable, Covered, After Allowance for Credit Loss Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financing Receivable, Covered, After Allowance for Credit Loss Loan Sale and Servicing Activities Cash Flows Associated With Loan Sale And Servicing Activities [Table Text Block] Cash flows associated with loan sale and servicing activities. Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Derivative [Table] Derivative [Table] Commercial mortgage loans held for sale Commercial mortgage loans held for sale Commercial Mortgages [Member] A loan to a business to acquire, develop, construct, improve, or refinance land or a building that is secured by a [legal] security interest in real property [commercial building or business real property] which thereby serves as collateral securing repayment of the loan. Home equity Home Equity Loan [Member] Entity Small Business Entity Small Business 1 Year or Less Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Preferred stock discount accretion and redemptions Preferred Stock, Discount, Accretion, And Redemptions Preferred Stock, Discount, Accretion, And Redemptions Document Transition Report Document Transition Report Summary of Investment Holdings [Line Items] Summary of Investment Holdings [Line Items] Other Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent Underlying Securities Award Underlying Securities Amount Net unrealized gains (losses) Other Comprehensive Income (Loss), before Reclassifications, before Tax Gross Gains Debt Securities, Available-for-Sale, Realized Gain Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Capital markets and advisory Investment Banking Revenue After 1 Year through 5 Years After One Year Through Five Years [Member] Represents contractual maturities after one year through five years Contractual Maturity of Securities Investment Securities Debt Maturities [Table Text Block] This item represents debt securities, net of adjustments made for accretion, amortization, other-than-temporary impairments, and hedging, if any, categorized by contractual maturity at the balance sheet date and which are not categorized as trading securities. Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Net derivative liabilities with credit-risk contingent features Derivative, Net Liability Position, Aggregate Fair Value Schedule of Investments [Table] Schedule of Investments [Table] Net Amounts Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Investment securities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Debt Securities, Available-for-sale Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Debt Securities, Available-for-sale Other Liabilities With Contractual Unpaid Principal Balance Other Liabilities With Contractual Unpaid Principal Balance [Member] Other Liabilities With Contractual Unpaid Principal Balance Purchase price Financing Receivable, Purchased Seasoned Loan, Amount at Purchase Price Financing Receivable, Purchased Seasoned Loan, Amount at Purchase Price Total equity Equity, beginning balance Equity, ending balance Equity, Including Portion Attributable to Noncontrolling Interest Document Type Document Type Equity investments Equity Method Investments, Fair Value Disclosure Level 3 Fair Value, Inputs, Level 3 [Member] Earnings Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Loss Contingencies [Table] Loss Contingencies [Table] Capital surplus Additional Paid in Capital Marketing Marketing and Advertising Expense Product and Service [Axis] Product and Service [Axis] Revolving Loans Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff Total in-scope noninterest income Revenue from Contract with Customer, Excluding Assessed Tax Series X Series X Preferred Stock [Member] Series X Preferred Stock Statistical Measurement [Axis] Statistical Measurement [Axis] Fitch, AAA OR AA Rating Fitch, AAA OR AA Rating [Member] Fitch, AAA OR AA Rating [Member] Internal credit ratings (as a percentage of portfolio) - Pass Standby Letters of Credit Pass Percentage of standby letters of credit (including risk participations in standby letters of credit and bankers' acceptances issued by other financial institutions) with an internal credit rating of pass, indicating the expected risk of loss is currently low. Credit Score, FICO [Domain] FICO Credit Score [Domain] Credit Score, FICO [Domain] Mortgage Servicing Rights Servicing Contracts [Member] Year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Cash and due from banks Cash And Due From Banks [Member] Cash And Due From Banks Cumulative Effect, Period of Adoption, Adjusted Balance Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Pretax loss included in AOCI from derivatives Pretax loss included in AOCI from derivatives Debt Securities, Held-to-Maturity, Derivative, Cumulative Loss Shares withheld to satisfy tax obligations Payment, Tax Withholding, Share-Based Payment Arrangement Debt-to-Value [Axis] Debt-to-Value [Axis] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] After 1 Year through 5 Years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Net income attributable to basic common shareholders Net Income (Loss) Available to Common Stockholders, Basic Standby letters of credit Financial Standby Letter of Credit [Member] Principal balance Financing Receivable, Purchased with Credit Deterioration, Amount at Par Value Series W Series W Preferred Stock [Member] Series W Preferred Stock Decline in fair value from 20% adverse change in adjusted spread Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Other Assumption Percentage of total loans, past due Financing Receivable, Percent Past Due Interest Rate Reduction and Term Extension Extended Maturity and Interest Rate Reduction [Member] Other liabilities Other Liabilities, Fair Value Disclosure Financing receivable, aging analysis Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months Nonaccrual loans Nonaccrual Loans [Member] Nonaccrual Loans [Member] Level 1 Fair Value, Inputs, Level 1 [Member] Agency Nonagency Debt Securities [Axis] Agency and Non Agency Financial Securities [Axis] Agency and Non Agency Financial Securities [Axis] Diluted (in dollars per share) Diluted earnings per common share (in dollars per share) Earnings Per Share, Diluted Non-cash Investing And Financing Items Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Number of countries outside the US where strategic international offices are held Number Of Countries Outside The United States Where Strategic International Offices Are Held Number Of Countries Outside The United States Where Strategic International Offices Are Held Gains (Losses) on Sales Of Securities Available for Sale Schedule of Realized Gain (Loss) [Table Text Block] Cash flows from mortgage-backed securities held Cash Flows On Mortgage Backed Securities Held Represents the cash flows of securities held where we transferred and/or serviced loans to a securitization special purpose entity (SPE) and we hold securities issued by that SPE. Amortized cost basis, modified Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Cash dividends declared - Preferred Dividends, Preferred Stock, Cash Common stock held in treasury at cost (shares) Treasury Stock, Common, Shares Consolidation Items [Domain] Consolidation Items [Domain] Residential mortgage-backed agency Residential Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] Residential Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises Investments, Debt and Equity Securities [Abstract] Loans Payment for Acquisition, Loan, Held-for-Investment Core Deposits [Member] Core Deposits [Member] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] Additions Servicing Asset at Fair Value, Additions Term Extension Extended Maturity [Member] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Other Stockholders' Equity, Other Credit-Risk Contingent Features Disclosure of Credit Derivatives [Table Text Block] Over-the-counter Over-the-Counter [Member] Commitments to extend credit Commitments to Extend Credit [Member] Preferred stock, par value Par Value of Preferred Stock Outstanding Par value less than $.5 million at each date Spread over the benchmark curve Spread Over The Benchmark Curve [Member] Spread Over The Benchmark Curve Series T Series T Preferred Stock [Member] Series T Preferred Stock Total securities available-for-sale at amortized cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost, Rolling Maturity [Abstract] Subsidiaries Subsidiaries [Member] After 5 Years through 10 Years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value Loans Total loans Total loans, net Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Pension and other postretirement benefit plan adjustments Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax Less than 1 year Long-Term Debt, Maturities, Repayments of Principal in Next Rolling 12 Months Components of Lease Income Operating Lease, Lease Income [Table Text Block] Tax effect OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, Tax [Abstract] Gross Unrealized Loss and Fair Value of Securities Available for Sale Without an Allowance for Credit Losses Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Expiration Date Trading Arrangement Expiration Date Other Commitments [Domain] Other Commitments [Domain] Derivative Assets And Liabilities Offsetting Derivative Assets And Liabilities Offsetting [Table Text Block] Derivative Assets And Liabilities Offsetting [Table Text Block] Interchange Fees Interchange Fees [Member] Interchange Fees Equity Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Multiple of earnings Measurement Input, Multiple of Earnings [Member] Measurement Input, Multiple of Earnings Debt securities, held to maturity, allowance for credit loss Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest Investments Investments [Member] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Series A Preferred Stock Series A Preferred Stock [Member] Entity Current Reporting Status Entity Current Reporting Status Receivables [Abstract] Derivative [Line Items] Derivative [Line Items] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] Collateral [Axis] Collateral Held [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Loans Loans [Member] Transaction [Domain] Transaction [Domain] Corporate & Institutional Banking Corporate & Institutional Banking Segment [Member] Corporate and Institutional Banking [Member] Financial Instrument [Axis] Financial Instrument [Axis] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Executive Category: Executive Category [Axis] Unrealized loss position 12 months or more Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss External Credit Rating, Fitch [Domain] External Credit Rating, Fitch [Domain] Remarketing Programs Remarketing Programs [Member] Included in standyby letters of credit, amount represents maximum potential amount of future payments PNC could be required to make under outstanding standby letters of credit that support remarketing programs. 1 Year or Less One Year or Less [Member] Represents contractual maturities of one year or less Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Investment, Amount Current Fiscal Year End Date Current Fiscal Year End Date Unrealized loss position less than 12 months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Finite-Lived Intangible Assets, Major Class Name [Domain] Derivative Business [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Total deposits Deposits Deposits Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits Financial derivatives Derivative liabilities, Net Fair Value Derivative Liability Other Other Noninterest Expense Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Pass Rated Pass [Member] Interest rate contracts Interest Rate Contract [Member] Sales of loans and related securitization activity Cash Flows Between Transferor and Transferee, Proceeds from New Transfers Total Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Fair Value Measurements - Recurring Basis Summary Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Stock issuances, value Stock Issued During Period, Value, Acquisitions Average Common Shares Outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Collateral Dependent Collateral Pledged [Member] Analysis of Loan Portfolio Financing Receivable, Past Due [Table Text Block] Interest-bearing Interest-Bearing Deposit Liabilities Net cash provided (used) by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Measure: Measure [Axis] Fair Value Disclosure Item Type [Domain] Fair Value Disclosure Item Type [Domain] After 5 Years through 10 Years Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value Securities Held-to-Maturity Debt Securities, Held-to-Maturity, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] Total consumer lending Consumer Portfolio Segment [Member] Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] Decline in fair value from 20% adverse change in prepayment rate Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Prepayment Speed Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] 1 Year or Less Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling within One Year After 10 Years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Capital Surplus - Common Stock and Other Common Stock Including Additional Paid in Capital [Member] Entity Tax Identification Number Entity Tax Identification Number Repayments/maturities Repayments Maturities Financing [Abstract] Repayments/ maturities [Abstract] Year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Non-Consolidated VIEs Schedule of Variable Interest Entities [Table Text Block] Financial derivatives Derivative [Member] Common stock, issued (shares) Common Stock, Shares, Issued Commercial mortgage servicing rights Commercial Mortgage-Backed Securities [Member] Goodwill and Mortgage Servicing Rights Goodwill and Intangible Assets Disclosure [Text Block] Deferred restricted stock compensation Share-Based Payment, Arrangement, Deferred Restricted Stock Compensation, Va;ie Share-Based Payment, Arrangement, Deferred Restricted Stock Compensation, Va;ie Transfer from loans to loans held for sale, net Loan and Lease, Transfer from Held-in-Portfolio to Held-for-Sale Mortgage-backed Securities Agency Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Operating leases Operating Lease, Lease Income Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Loss Contingencies [Line Items] Loss Contingencies [Line Items] Weighted-average life (years) Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Weighted Average Life Segment Reporting, Reconciling Item, Corporate Nonsegment Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Security Exchange Name Security Exchange Name Interim Period, Costs Not Allocable [Domain] Interim Period, Costs Not Allocable [Domain] Lease income Lease Income Unsecured Consumer Loans Unsecured Consumer Loans [Member] Unsecured Consumer Loans Loans Proceeds from Sale, Loan, Held-for-Investment Other Risk Management Activity Other Risk Management Activity [Member] Activities where management enters into contracts based on stated risk management objectives. Commercial mortgage- backed non-agency Commercial Mortgage-Backed Securities, Issued by Private Enterprises [Member] Commercial Mortgage-Backed Securities, Issued by Private Enterprises Loan Sale and Servicing Activities and Variable Interest Entities Loan Sale And Servicing Activities And Variable Interest Entities Disclosure [Text Block] Disclosure of loan sale and servicing activities, including, but not limited to financial information and cash flows. Disclosure of variable interest entities (VIEs), including, but not limited to carrying value and size for consolidated VIEs and size, risk of loss, and carrying value for non-consolidated VIEs. Loans and Related Allowance for Credit Losses Financing Receivables [Text Block] Borrowed funds Borrowed funds [Abstract] Borrowed Funds [Abstract] Servicing advances recovered/(funded), net Cash Flows Between Transferor and Transferee, Servicing Advances Recovered (Funded) Cash Flows Between Transferor and Transferee, Servicing Advances Recovered (Funded) Other Cash And Cash Management Fees, Other [Member] Other [Member] Contractual Maturities [Domain] Contractual Maturities [Domain] Interest-bearing deposit, fair value Interest-Bearing Deposit, Fair Value Disclosure Interest-Bearing Deposit, Fair Value Disclosure Asset Class [Domain] Asset Class [Domain] Payment Delay and Term Extension Payment Deferral And Extended Maturity [Member] Payment Deferral And Extended Maturity Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Statement [Line Items] Statement [Line Items] Average Assets Assets, Average Outstanding Carrying Value of the Hedged Items Hedged Asset, Fair Value Hedge Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Lending and deposit services Lending And Deposit Services [Member] Lending And Deposit Services Subsequent Event [Line Items] Subsequent Event [Line Items] Common Stock, par value $5.00 Common Stock Common Stock [Member] Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances Corporate & Institutional Banking Corporate & Institutional Banking [Member] Corporate and Institutional Banking [Member] Net Increase (Decrease) In Cash, Cash Equivalents And Restricted Cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Insignificant assets, net of liabilities fair value disclosure Insignificant Assets (Liabilities), Fair Value Disclosure Insignificant Assets (Liabilities), Fair Value Disclosure Servicing Asset at Fair Value, Amount [Roll Forward] Servicing Asset at Fair Value, Amount [Roll Forward] Number of portfolio segments Number of Portfolio Segments Number of Portfolio Segments Fair value - assets Fair Value Of Assets For Which Fair Value Option Was Elected Represents the fair value of assets for which the fair value option was elected. Accounting Policies Significant Accounting Policies [Text Block] Statistical Measurement [Domain] Statistical Measurement [Domain] Disposal Groups, Including Discontinued Operations [Table] Business Combination [Abstract] Other liabilities Other Liabilities Fair Value Disclosure [Member] Other Liabilities Fair Value Disclosure Acquisition PSL reserves Financing Receivable, Excluding Accrued Interest, Purchased Seasoned Loan, Allowance for Credit Loss at Acquisition Date Financing Receivable, Excluding Accrued Interest, Purchased Seasoned Loan, Allowance for Credit Loss at Acquisition Date Asset Class [Axis] Asset Class [Axis] After 10 Years After Ten Years [Member] Represents contractual maturities after ten years Out-of-scope noninterest income Revenue Not from Contract with Customer, Excluding Interest Income Series U Series U Preferred Stock [Member] Series U Preferred Stock Included in other comprehensive income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Leases [Abstract] Leases [Abstract] 720 to 779 FICO Score, 720 to 779 [Member] FICO Score, 720 to 779 Stock issued (in shares) Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares Dividends Per Share Dividends Declared [Table Text Block] Nonperforming loans, without allowance for credit losses Financing Receivable, Excluding Accrued Interest, Nonaccrual, No Allowance Pledged Status [Axis] Pledged Status [Axis] Unrealized losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Purchases Purchases Investing [Abstract] Purchases [Abstract] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Basic (in dollars per share) Basic earnings per share common share (in dollars per share) Earnings Per Share, Basic Gain (loss) on net investment hedge derivatives Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax Cash dividends declared, preferred, per share (in dollars per share) Preferred Stock, Dividends Per Share, Declared Maximum additional amount of collateral exposure Additional Collateral, Aggregate Fair Value No FICO score available (a) No FICO Score Available [Member] Investments to quality for PAM Liability Related To Investments Qualified For PAM Represents the liability related to investments in low income housing tax credits which is reflected in other liabilities on our Consolidated Balance Sheet. Threshold period of financing receivable past due, writeoff Financing Receivable, Threshold Period Past Due, Writeoff Discount rate Measurement Input, Discount Rate [Member] Other comprehensive income (loss), after tax and net of reclassifications into Net income Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax Results of Businesses Schedule of Segment Reporting Information, by Segment [Table Text Block] Time deposits Deposits, Fair Value Disclosure Unrealized gains Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain Measurement Input Type [Domain] Measurement Input Type [Domain] Unrealized gains/losses for the period on assets held on Consolidated Balance Sheet Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) Fair Value Measurements - Nonrecurring Fair Value Measurements, Nonrecurring [Table Text Block] Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Total Charge-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Debit card fees Debit Card Fees [Member] Debit Card Fees [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Investment Securities [Axis] Investment Securities [Axis] Mortgage Servicing Rights Schedule of Servicing Assets at Fair Value [Table Text Block] Variable Interest Entity, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Trading securities Debt Securities, Trading, and Equity Securities, FV-NI Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Accounts and Financing Receivables [Table] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Hedging Designation [Domain] Hedging Designation [Domain] Accrued interest on loan portfolio Financing Receivable, Accrued Interest, after Allowance for Credit Loss Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Loans held for sale Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance Total liabilities and equity Liabilities and Equity Pension and other postretirement benefit plan adjustments Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Fair Value Measurement Type [Axis] Fair Value Measurement Type1 [Axis] Less: Preferred Stock Dividends and Other Adjustments [Abstract] Derivative assets Offsetting Derivative Assets [Abstract] Other Financing Receivable, Excluding Interest, Allowance for Credit Loss, Other Increase (Decrease) Financing Receivable, Excluding Interest, Allowance for Credit Loss, Other Increase (Decrease) Securities Collateral Held/Pledged Under Master Netting Agreements Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Security Not Offset Aggregate unpaid principal balance of assets for which fair value option was elected Aggregate Unpaid Principal Balance Of Assets For Which Fair Value Option Was Elected Represents the aggregate unpaid principal balance of assets for which the fair value option was elected. Accounting Policies [Abstract] Accounting Policies [Abstract] Summary of the Classification of Portfolio Segments Summary Of The Classification Of Portfolio Segments [Table Text Block] Summary Of The Classification Of Portfolio Segments Concentration Risk Type [Domain] Concentration Risk Type [Domain] Liabilities At Fair Value Liabilities At Fair Value [Member] Liabilities At Fair Value [Member] Treasury Stock Treasury Stock, Common [Member] Year one Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Pay vs Performance Disclosure [Line Items] 90 Days or More Past Due Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Federal Home Loan Bank advances Repayments Maturities Of Federal Home Loan Bank Borrowings The cash outflow from the repayments/maturities of Federal Home Loan Bank Borrowings. Liabilities Liabilities [Abstract] Investment Holdings [Table] Investment Holdings [Table] Accruing loans less than 90 days past due Loans Less Than 90 Days Past Due [Member] Loans Less Than 90 Days Past Due [Member] Depreciation, amortization and accretion Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Fair Value of Securities Pledged and Accepted as Collateral Fair Value Of Securities Pledged And Accepted As Collateral [Table Text Block] Represents the fair value of securities pledged and accepted as collateral for borrowings. Mortgage Servicing Rights Acquisition [Domain] Mortgage Servicing Rights Acquisition [Domain] Information clarified by acquisition of MSR type. Net (charge-offs) Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) Automobile Automobile Loan [Member] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Hedged items Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Noninterest Income by Business Segment and Reconciliation to Consolidated Noninterest Income Noninterest Income Disaggregation By Business Segment [Table Text Block] Noninterest Income Disaggregation By Business Segment Year three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff Comprehensive income attributable to PNC Comprehensive Income (Loss), Net of Tax, Attributable to Parent Measurement Input Type [Axis] Measurement Input Type [Axis] Other Comprehensive Income (Loss) Change In Accumulate Other Comprehensive Income Loss [Table Text Block] Accumulated Other Comprehensive Income Loss Detail. Name Measure Name Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances Securities available-for-sale Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Class of Stock [Line Items] Class of Stock [Line Items] Loan Sale and Servicing Activities and Variable Interest Entities [Abstract] Loan Sale and Servicing Activities and Variable Interest Entities [Abstract] Loan Sale and Servicing Activities and Variable Interest Entities Cash flow hedge loss to be reclassified within twelve months, net of tax Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months, Net of Tax Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months, Net of Tax Principal balance Financing Receivable, Purchased Seasoned Loan, Amount at Par Value Financing Receivable, Purchased Seasoned Loan, Amount at Par Value Futures Future [Member] Total borrowed funds Long-Term Debt Difference, Other borrowed funds Fair Value Option Aggregate Difference Liabilities For liabilities for which the fair value option has been elected, this item represents the difference between the fair value and the aggregate unpaid principal balance for those assets. Total assets Carrying Value of Assets Assets Aggregate unpaid principal balance, other borrowed funds Aggregate Unpaid Principal Balance Of Liabilities For Which Fair Value Option Was Elected Represents the aggregate unpaid principal balance of liabilities for which the fair value option was elected. Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Other tax benefits (March 31,2026 and December 31, 2025 Less than $0.1 billion) Other Tax Expense (Benefit) Financing Receivable, Allowance for Credit Loss [Roll Forward] Financing Receivable, Allowance for Credit Loss [Roll Forward] Greater than 100% LTV Greater Than 100 Percent [Member] LTV Greater Than 100 Percent Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Merchant services Merchant Fees [Member] Merchant Fees [Member] Other Segment Reporting, Other Segment Item, Amount Core deposit intangible amortized life Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Legal Proceedings [Abstract] Legal Proceedings [Abstract] Legal Proceedings Schedule Of Financing Receivable, Purchased Loans Schedule Of Financing Receivable, Purchased Seasoned Loans [Table Text Block] Schedule Of Financing Receivable, Purchased Seasoned Loans Concentration Risk Type [Axis] Concentration Risk Type [Axis] Borrowed funds Borrowed Funds Interest Expense, Borrowings After 1 Year through 5 Years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost Credit Score, FICO [Axis] FICO Credit Score [Axis] Credit Score, FICO [Axis] Fair Value Total Securities held to maturity Debt Securities, Held-to-Maturity, Fair Value Cash dividends declared, common, per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Other Changes In Fair Value Other [Member] Represents MSR value changes resulting primarily from market-driven changes in interest rates, as well as changes in assumptions such as prepayments and servicing costs. Leased assets obtained in exchange for new operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Debt Securities [Line Items] Debt Securities, Available-for-Sale [Line Items] Total assets Business Combination, Recognized Asset Acquired, Asset Level 2 Fair Value, Inputs, Level 2 [Member] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Business Combination [Domain] Business Combination [Domain] Equity investments Equity Method Investments [Member] Asset Pledged as Collateral Asset Pledged as Collateral [Member] Residential mortgage loans held for sale Residential mortgage servicing rights Residential Mortgage [Member] Preferred stock discount accretion/premium amortization Increase in Carrying Amount of Redeemable Preferred Stock Sales-type Lease, Lease Income Sales-type Lease, Lease Income [Table Text Block] Accruing loans 90 days or more past due Loans 90 Days Or More Past Due [Member] Loans 90 Days Or More Past Due [Member] PEO PEO [Member] Transfers into Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 2 to 3 years Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Three Decline in fair value from 10% adverse change in interest rate Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Discount Rate 1 Year or Less Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Junior subordinated debt Junior Subordinated Debt [Member] Net change in Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Retained Earnings Retained Earnings [Member] Borrowed funds and other Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Debt And Lease Obligation Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Debt And Lease Obligation Residential mortgage servicing rights Residential Mortgage Serving Rights [Member] Residential Mortgage Serving Rights Series V Series V Preferred Stock [Member] Series V Preferred Stock Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period (b) Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Financial derivatives Derivative assets, Net Fair Value Derivative Asset Unrealized loss position 12 months or more Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Interest Expense Interest Expense [Member] Investment securities, allowance for credit loss Debt Securities, Available-for-Sale and Held-to-Maturity, Allowance for Credit Loss Fair Value, Nonrecurring Fair Value, Nonrecurring [Member] Financing Receivable, Troubled Debt Restructuring [Table] Financing Receivable, Modified [Table] Other income Noninterest Income, Other Provision for (recapture of) credit losses Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) Product and Service [Domain] Product and Service [Domain] No LTV available No LTV Available [Member] No LTV Available Changes in fair value of mortgage servicing rights Mortgage Servicing Rights Valuation Adjustment Represent the aggregate adjustment of mortgage servicing rights fair value changes and impairment charges taken during the period. Transfers out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 Other consumer Other Other Consumer Loans [Member] Other Consumer Loans [Member] Fair Value Option - Changes in Fair Value Fair Value Option Changes In Fair Value Gain Loss [Table Text Block] Tabular disclosure of the amounts of gains and losses from fair value changes included in earnings during the period for items measured at fair value, where the fair value option has been elected. Net income Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Equity securities, measurement input Equity Securities, FV-NI, Measurement Input Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Total liabilities Recurring liabilities - fair value Liabilities, Fair Value Disclosure Business Combination [Table] Business Combination [Table] Retail Banking Retail Banking Segment [Member] Retail Banking [Member] New Markets Tax Credit liability (March 31, 2026 and December 31, 2025, less than) Investment, New Markets Tax Credit, Liability Investment, New Markets Tax Credit, Liability Derivative, notional amount Derivative, Notional Amount Fair Value Option Eligible Item [Domain] Fair Value Option Eligible Item [Domain] Revolving Loans Financing Receivable, Excluding Accrued Interest, Revolving Acquisition Consideration Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] Assets At Fair Value Assets At Fair Value [Member] Assets At Fair Value [Member] City Area Code City Area Code Other AOCI Attributable to Parent, Other [Member] AOCI Attributable to Parent, Other [Member] Rollforward of Allowance for Credit Losses Financing Receivable, Allowance for Credit Loss [Table Text Block] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Segment allocations General and Administrative Expense Investing Activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Government insured or guaranteed loans Loans Insured or Guaranteed by US Government Authorities [Member] Fair value hedges Fair Value Hedging [Member] After 10 Years Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years Lending and deposit services Lending And Deposit Services Revenue Lending And Deposit Services Revenue Schedule of Servicing Assets at Fair Value [Table] Servicing Asset at Fair Value, Activity [Table] Cash flow hedges Cash Flow Hedging [Member] Automobile Automobiles [Member] Goodwill Goodwill Asset Management Group Asset Management Group Segment [Member] Asset Management Group [Member] Sales-type and direct financing leases Sales-type and Direct Financing Leases, Interest Income Transfers out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Card and cash management Card And Cash Management Revenue Card And Cash Management Revenue Supplemental Disclosures (c) Supplemental Cash Flow Information [Abstract] Other Liabilities Without Contractual Unpaid Principal Balance Other Liabilities Without Contractual Unpaid Principal Balance [Member] Other Liabilities Without Contractual Unpaid Principal Balance Other Performance Measure, Amount Other Performance Measure, Amount U.S. Treasury and government agencies U.S. Treasury and government agencies US Treasury and Government [Member] Net unsettled investment purchases Investment Securities, Net Unsettled Investment Purchases Investment Securities, Net Unsettled Investment Purchases Nonperforming Assets Nonperforming Assets And Related Information [Table Text Block] Details of nonperforming assets and other statistical information. Constant prepayment rate Measurement Input, Constant Prepayment Rate [Member] Credit Concentration Risk Credit Concentration Risk [Member] Direct Financing Lease, Lease Income Direct Financing Lease, Lease Income [Table Text Block] Derivative Instrument [Axis] Derivative Instrument [Axis] Restricted cash Restricted Cash Financial Instruments, Financial Liabilities, Balance Sheet Groupings Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Net cash provided (used) by investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Amount of derivative gains (losses) reclassified from accumulated other comprehensive income Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Loans Insured Or Guaranteed By Government Authorities [Axis] Loans Insured or Guaranteed by Government Authorities [Axis] Loans Insured or Guaranteed by Government Authorities [Axis] Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Servicing Assets at Fair Value [Line Items] Servicing Assets at Fair Value [Line Items] Basis of Financial Statement Presentation Basis of Accounting, Policy [Policy Text Block] Schedule of Fair Value and Cash Flow Hedges Schedule of Fair Value and Cash Flow Hedging Instruments Statements of Financial Performance and Financial Position Location [Table Text Block] Schedule of Fair Value and Cash Flow Hedging Instruments Statements of Financial Performance and Financial Position Location [Table Text Block] Carrying Amount Reported Value Measurement [Member] Acquisition costs Business Combination, Acquisition-Related Cost, Expense Legal Proceedings Legal Matters and Contingencies [Text Block] Equity [Abstract] Acquisition PCD reserves Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date Nonaccrual loans Financing Receivable, Nonaccrual Senior debt Senior Notes Accrued interest, held-to-maturity Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss Segment Reporting Segment Reporting Disclosure [Text Block] Not Designated as Hedging Instrument under GAAP Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Foreign exchange contracts and other Foreign Exchange And Other Contract [Member] Derivative instrument whose primary underlying risk is tied to foreign exchange rates, to the creditworthiness or the credit spread of an entity or is classified as other. Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Other Commitments [Line Items] Other Commitments [Line Items] Transfers into Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 Changes In Fair Value [Domain] Changes In Fair Value [Domain] Changes in Fair Value Commitments to Extend Credit and Other Commitments Other Commitments [Table Text Block] Other Other Debt Obligations [Member] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Weighted Average Weighted Average [Member] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Loans Loans Loans Receivable [Member] Debt securities, measurement input Debt Securities, Available-for-Sale, Measurement Input Accumulated Other Comprehensive Income (Loss) Components Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Nonperforming Loans Nonperforming Loans Nonperforming Financial Instruments [Member] Other comprehensive income (loss), before tax and net of reclassifications into Net income Other Comprehensive Income (Loss), before Tax [Abstract] After 10 Years Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value Residential mortgage-backed Residential Mortgage-Backed Securities [Member] Rollforward of Total Equity Schedule of Stockholders Equity [Table Text Block] Equity [Table] Equity [Table] Equity [Table] Arrangement Duration Trading Arrangement Duration Criticized Criticized [Member] Segments [Axis] Segments [Axis] Net change in Other Other Comprehensive Income, Other, Net of Tax Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Other investing activities, net Payment for (Proceeds from) Other Investing Activity Other borrowed funds, fair value (less than) Other Borrowed Funds Fair Value Disclosure This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This element represents the fair value of liabilities categorized as other which are not in and of themselves material enough to require separate disclosure. Liability Liability [Member] Core deposit intangible Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill Cash and due from banks Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent Commercial mortgage-backed agency Commercial Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] Commercial Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises Allowance for unfunded lending related commitments Beginning balance Ending balance Off-Balance-Sheet, Credit Loss, Liability Assets Assets [Abstract] Net change in debt securities OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax Number of distinct operating units Number Of Distinct Operating Units Number Of Distinct Operating Units Other Other Contract [Member] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Capital markets and advisory Capital Markets Related [Member] Capital Markets Related Other Commitments [Axis] Other Commitments [Axis] Debt Instrument [Axis] Debt Instrument [Axis] After 1 Year through 5 Years Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Fair Value Fair Value Disclosures [Text Block] Business Combination [Line Items] Business Combination [Line Items] FHLB Federal Home Loan Bank Borrowings [Member] Financing Receivable, Modified Financing Receivable, Modified [Table Text Block] Debt securities, pledged to others Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value Interest rate Debt Instrument, Interest Rate, Stated Percentage 30-59 Days Past Due Financial Asset, 30 to 59 Days Past Due [Member] Securities Available-for-Sale Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] Commitments Commitments Contingencies and Guarantees [Text Block] Derivative asset, fair value Gross Fair Value Derivative Asset, Subject to Master Netting Arrangement, before Offset Mortgage-backed commitments Mortgage Commitment [Member] Commitments to extend credit where the interest rate is locked in advance of funds being disbursed for a specified period of time related to Mortgage loans. Unfunded lending related commitments Financing Receivable, Modified, Commitment to Lend Greater than or equal to 80% to 100% LTV Greater Than Or Equal To 80 Percent To Less Than 100 Percent [Member] LTV Greater Than Or Equal To 80 Percent To Less Than 100 Percent Entity Registrant Name Entity Registrant Name Cash flow hedge loss to be reclassified within twelve months Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Unpaid principal balance of loans serviced for others at end of period Unpaid Principal Balance Of Loans Serviced For Others Unpaid principal balance of residential mortgage loans serviced for others at period end. Credit Rating, Fitch [Axis] Credit Rating, Fitch [Axis] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] 1 to 2 years Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Two Total Assets Recurring assets - fair value Assets, Fair Value Disclosure Deposits Deposits [Abstract] Total Past Due Financial Asset, Past Due [Member] Fair Value Option Qualitative Disclosures Related To Election By Eligible Item Or Group2 [Axis] Fair Value Option Qualitative Disclosures Related To Election By Eligible Item Or Group2 [Axis] Mortgage servicing rights Mortgage servicing rights, beginning balance Mortgage servicing rights, ending balance Fair value Servicing Asset at Fair Value, Amount Other Segments Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Restatement Determination Date: Restatement Determination Date [Axis] Pre-tax OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax [Abstract] Long-lived assets Long-lived Assets [Member] Long-lived Assets [Member] Other Modified, Other [Member] Modified, Other Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Loans Financing Receivable, Held-for-Investment [Policy Text Block] After 5 Years through 10 Years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Amortized Cost Other financing activities, net Proceeds from (Payment for) Other Financing Activity Liabilities Business Combination, Recognized Liability Assumed, Liability [Abstract] Less: Net realized gains (losses) reclassified to earnings Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Name Trading Arrangement, Individual Name Net charge-offs Net Chargeoffs On Loans Managed Or Securitized Or Asset Backed Financing Arrangement Amount of credit loss after recoveries for transferred financial assets not recognized in the statement of financial position. Net change in cash flow hedge derivatives Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax Subsequently defaulted FDM/ TDR Financing Receivable, Modified, Subsequent Default Loans held for sale, fair value Mortgage loans held for sale Loan, Held-for-Sale, Fair Value Disclosure Changes In Fair Value [Axis] Changes In Fair Value [Axis] Description of changes in fair value. Noninterest-bearing deposits Net Change Noninterest-Bearing Deposits, Domestic Debt instrument, face amount Debt Instrument, Face Amount Deposits Deposits [Member] Fair value of liabilities for which fair value option was elected Fair Value Of Liabilities For Which Fair Value Option Was Elected Fair Value Of Liabilities For Which Fair Value Option Was Elected Represents the fair value of liabilities for which the fair value option was elected. Statement [Line Items] Statement of Comprehensive Income [Abstract] Stock issued, fair value Business Combination, Consideration Transferred, Equity Interest Preferred Stock Preferred Stock [Member] Name Awards Close in Time to MNPI Disclosures, Individual Name Fair Value Fair Value, Measurement With Unobservable Inputs Reconciliation, Nonrecurring Basis, Asset Value Fair Value, Measurement With Unobservable Inputs Reconciliation, Nonrecurring Basis, Asset Value Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Commitments Other Commitment Federal Home Loan Bank advances Proceeds From Issuance Of Federal Home Loan Borrowings The cash inflow from the sales/issuances of Federal Home loan borrowings Over 5 years Long-Term Debt, Maturities, Repayments of Principal in Rolling after Year Five Net unrealized gains (losses) Other Comprehensive Income (Loss) before Reclassifications, Tax Liability Class [Axis] Liability Class [Axis] Segments [Domain] Segments [Domain] Income Statement Location [Axis] Statement of Income Location, Balance [Axis] Total liabilities Liabilities Financial Instruments Total Represents the total amount of PNC's financial instrument liabilities which are not already measured at fair value on our our financial statements. Level Three Liabilities Level Three Liabilities [Member] Level Three Liabilities [Member] Permitted amount repledged to others Fair Value of Securities Received as Collateral that Have Been Resold or Repledged Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Fair Value Option Qualitative Disclosures Related To Election By Eligible Item2 [Axis] Fair Value Option Qualitative Disclosures Related To Election By Eligible Item2 [Axis] Recently Adopted Accounting Standards Accounting Standards Update and Change in Accounting Principle [Table Text Block] Non-credit discount Financing Receivable, Purchased with Credit Deterioration, Discount (Premium) Debt securities AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Interest Expense Interest Expense, Operating and Nonoperating [Abstract] Total securities held-to-maturity at amortized cost Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling Maturity [Abstract] Fair Value Offset Amount Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Senior debt Senior Notes [Member] Securities available-for-sale Payments to Acquire Debt Securities, Available-for-Sale Preferred stock Preferred Stock, Value, Issued Subordinated debt Subordinated Debt Year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Senior debt Repayments Maturities Of Senior Debt Repayments Maturities Of Senior Debt Total liabilities Business Combination, Recognized Liability Assumed, Liability Subordinated debt Subordinated Debt [Member] Financing Receivables Period Past Due [Axis] Financial Asset, Aging [Axis] All Executive Categories All Executive Categories [Member] Common stock ($5 par value, Authorized 800,000,000 shares, issued 557,213,012 and 543,497,966 shares) Common Stock, Value, Issued Loans Loans Interest and Fee Income, Loans and Leases Senior Fixed To Floating Rate Notes, Due May 13, 2027 Senior Fixed To Floating Rate Notes, Due May 13, 2027 [Member] Senior Fixed To Floating Rate Notes, Due May 13, 2027 Fair Value Additional Information [Abstract] Fair Value Additional Information [Abstract] Year one Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff Amount of New Markets Tax Credit, assets Investment, New Markets Tax Credit, Amount Investment, New Markets Tax Credit, Amount Cash acquired Cash Acquired from Acquisition Business Combination [Axis] Business Combination [Axis] Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Noncontrolling Interests Noncontrolling Interest [Member] Using FICO Credit Metric Using Fico Credit Metric [Member] Interest Income Interest Income [Member] Assets, Total Assets, Total [Member] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Weighted-average option adjusted spread Fair Value Inputs Spread Over Benchmark Curve 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. 60-89 Days Past Due Financial Asset, 60 to 89 Days Past Due [Member] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] Other Other Interest and Dividend Income Other liabilities Other Liabilities, Additional Fair Value Information Represents other liabilities which are not already measured at fair value on our our financial statements. Offsetting Assets and Liabilities [Table] Offsetting Assets and Liabilities [Table] Offsetting Assets and Liabilities [Table] Net Amounts Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Other amounts related to interest settlements on derivatives Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Derivative Contract [Domain] Derivative Contract [Domain] Net investment hedges Net Investment Hedging [Member] Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Total principal balance Loan, Managed and Securitized or Asset-Backed Financing Arrangement, Principal Outstanding Weighted-average yield, GAAP basis, available for sale securities Weighted-Average Yield, GAAP Basis, Available For Sale Securities Represents the weighted-average yield by maturity for debt securities available for sale. Gross Losses Debt Securities, Available-for-Sale, Realized Loss All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Residential real estate Residential Real Estate [Member] 660 to 719 FICO Score, 660 to 719 [Member] FICO Score, 660 to 719 Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Name Forgone Recovery, Individual Name Mortgage Banking Mortgage Banking [Member] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Year five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff Weighted-average yield, GAAP basis, held to maturity securities Weighted-Average Yield, GAAP Basis, Held To Maturity Securities Represents the weighted-average yield by maturity for debt held to maturity. Total Gross Derivatives Schedule of Derivative Instruments [Table Text Block] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Schedule of Finite-Lived Intangible Assets [Table] Intangible Asset, Finite-Lived [Table] Other Other Borrowings Schedule of Fair Value Hedges Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Transaction Type [Axis] Transaction Type [Axis] Total commercial lending Commercial Commercial Portfolio Segment [Member] Other operating activities, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Interest-earning deposits with banks Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Interest-bearing Deposits In Banks And Other Financial Institutions Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Interest-bearing Deposits In Banks And Other Financial Institutions Credit card Credit Card Receivable [Member] Leases Lessor, Operating Leases [Text Block] Other borrowed funds Obligations, Fair Value Disclosure Less: Dividends and undistributed earnings allocated to nonvested restricted shares Participating Securities, Distributed and Undistributed Earnings (Loss), Basic Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Title of 12(b) Security Title of 12(b) Security Provision for credit losses Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) 1 Year or Less Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Equipment Equipment Expense Federal Home Loan Bank Federal Home Loan Bank [Member] Federal Home Loan Bank Earnings Per Common Share Earnings Per Share [Abstract] 3 to 4 years Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Four Carrying value of debt Long-Term Debt, Excluding Other Borrowings Long-Term Debt, Excluding Other Borrowings Asset-backed Asset-Backed Securities, Securitized Loans and Receivables [Member] Asset management and brokerage Asset Management Fees And Brokerage Fees [Member] Asset Management Fees And Brokerage Fees Capital Surplus - Preferred Stock Preferred Stock Including Additional Paid in Capital [Member] Year three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Asset Management Group Asset Management Group [Member] Asset Management Group [Member] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Fees from mortgage and other loan servicing Contractually Specified Servicing Fee, Late Fee, and Ancillary Fee Earned in Exchange for Servicing Financial Asset Award Timing Disclosures [Line Items] Gains (Losses) on Derivatives Not Designated as Hedging Instruments under GAAP Gains Losses On Derivatives Not Designated As Hedging Instruments Under Gaap [Table Text Block] Tabular disclosure of gains and losses reported in the statement of financial performance related to derivatives not designated as hedging instruments under GAAP. Measurement Frequency [Domain] Measurement Frequency [Domain] Loss severity Measurement Input, Loss Severity [Member] Net unrealized gains (losses) Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Common stock activity (b) Common Stock Activity Net Net value of common stock activity during the period, including activity related to share issuances, exercises of options, employee stock purchase plan activity and other activity. Nonperforming loans to total loans Loans and Leases Receivable, Ratio of Nonperforming Loans to All Loans Total Equity and Other Comprehensive Income Equity [Text Block] Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Net loans Financing receivable, after allowance for credit loss Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Net income Net Income (Loss) Attributable to Parent Subsequent Event [Table] Subsequent Event [Table] Net unrealized gains (losses) relating to Level 3 assets and liabilities Fair Value Measured On Recurring Basis Net Change In Unrealized Gain Loss Included In Earnings This item represents the amount of the net change in unrealized (holding) gains or losses for the period which are included in the statement of income. Such unrealized (holding) gains or losses relate to those assets and liabilities still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3). Retail Banking Retail Banking 1 [Member] Retail Banking [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Investment Securities Investments [Text Block] This item represents the entire disclosure related to Investments in Certain Debt and Equity Securities which include all debt and equity securities (other than those equity securities accounted for under the equity or cost methods of accounting) with readily determinable fair values. A debt security represents a creditor relationship with an enterprise that is in the form of a security. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. Acquisition of treasury stock Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Noninterest Income Noninterest Income [Member] Noninterest [Member] Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Table] Interest-earning deposits with banks Interest-Bearing Deposits [Member] Agency and Non Agency Financial Securities [Domain] Agency and Non Agency Financial Securities [Domain] Agency and Non Agency Financial Securities [Domain] Retained earnings Retained Earnings (Accumulated Deficit) Standby letters of credit - Assets securing certain specifically identified standby letters of credit Assets securing certain specifically identified standby letters of credit Amount of any assets held either as collateral or by third parties that, upon the occurrence of any triggering event or condition under the guarantee, the guarantor can obtain and liquidate to recover all or a portion of the amounts paid under the guarantee. Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Federal Reserve Bank Federal Reserve Bank [Member] Federal Reserve Bank Changes in Fair Value Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions Securities held-to-maturity Payments to Acquire Held-to-Maturity Securities Class of Stock [Axis] Class of Stock [Axis] Cash flow hedge derivatives Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Asset management and brokerage Brokerage Commissions Revenue Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Net assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Less Noncontrolling Interest Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Less Noncontrolling Interest Commercial Mortgage Loan Servicing Assets - Key Valuation Assumptions Schedule Of Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Servicing Liabilities Commercial Mortgage Loan Servicing Assets [Table Text Block] A sensitivity analysis or stress test showing the hypothetical effect on the fair value of commercial mortgage servicing rights of two or more unfavorable variations from the expected levels for each key assumption that is reported, independently determined from any change in another key assumption, and a description of the objectives, methodology, and limitations of the sensitivity analysis or stress test. Statement [Table] Statement [Table] Deferred income taxes (benefit) Deferred Income Tax Expense (Benefit) Adjustments to reconcile net income to net cash provided (used) by operating activities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Trading securities and other short-term investments Increase (Decrease) in Debt Securities, Trading, and Equity Securities, FV-NI After 1 Year through 5 Years Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after One through Five Years Reconciliation of Level 3 Assets and Liabilities Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Total assets Assets Financial Instruments Total Represents the total amount of PNC's financial instruments (assets) which are not already measured at fair value on our our financial statements. All Adjustments to Compensation All Adjustments to Compensation [Member] Interest Rate Reduction Contractual Interest Rate Reduction [Member] Amendment Flag Amendment Flag Accrued interest, available-for-sale Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Common stock held in treasury at cost: 155,167,491 and 153,084,091 shares Treasury Stock, Common, Value Termination Date Trading Arrangement Termination Date Interest-earning deposits with banks Interest-Bearing Deposits in Banks and Other Financial Institutions Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Allowance for loan and lease losses Beginning balance Ending balance Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Level 3 Assets Level Three Assets [Member] Level Three Assets [Member] Basic (in shares) Basic weighted-average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Basic and Diluted Earnings Per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] ACL at acquisition Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date Borrowed Funds Borrowings [Member] Subsequent Events [Abstract] Subsequent Events [Abstract] Segment Reporting [Abstract] Segment Reporting [Abstract] After-tax OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax [Abstract] Standby letter of credit, term (less than one year) Standby Letter of Credit, Term Standby Letter of Credit, Term Debt Disclosure [Abstract] Debt Disclosure [Abstract] Less: Net realized gains (losses) reclassified to earnings Reclassification from AOCI, Current Period, Tax Loans - Residenital real estate - Uninsured Residential Real Estate, Uninsured [Member] Residential Real Estate, Uninsured Derivative liabilities Offsetting Derivative Liabilities [Abstract] Net Gains (Losses) Debt Securities, Available-for-Sale, Realized Gain (Loss) Credit Card Reward Costs Credit Card Reward Costs [Member] Credit Card Reward Costs Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Consolidated Entities [Axis] Consolidated Entities [Axis] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Delinquent loans Delinquent Amount at End of Period on Loans Managed and Securitized or Asset-Backed Financing Arrangement Use of Estimates Use of Estimates, Policy [Policy Text Block] Leases Lessor, Direct Financing Leases [Text Block] Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Purchases Purchased MSRs [Member] New mortgage servicing rights that were purchased from third parties Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table] Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table] Occupancy Occupancy, Net Fair Value Offset Amount Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Subsequent Events Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Current or Less Than 30 Days Past Due Financial Asset, Not Past Due [Member] Debt securities, available for sale, allowance for credit loss Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest Other Product and Service, Other [Member] Total liabilities Carrying Value of Liabilities Liabilities Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] % of Loan Class Financing Receivable, Excluding Accrued Interest, Modified in Period, to Total Financing Receivables, Percentage Provision For Credit Losses Provision for credit losses Financing Receivable, Credit Loss, And Off-Balance Sheet, Credit Loss, Liability Expense (Recovery) Financing Receivable And Off-Balance Sheet, Credit Loss, Expense (Recovery) Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] OREO, foreclosed and other assets Other Real Estate, Foreclosed Assets, and Repossessed Assets Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Securities Collateral Held/Pledged Under Master Netting Agreements Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset Servicing advances Servicing Advances Represents outstanding balance of funds advanced (i) to investors for monthly collections of borrower principal and interest, (ii) for borrower draws on unused home equity lines of credit, and (iii) for collateral protection associated with the underlying mortgage collateral Asset-backed Asset-Backed Securities [Member] Consolidation Items [Axis] Consolidation Items [Axis] Treasury management fees Treasury Management Fees [Member] Treasury Management Fees [Member] Securities held-to-maturity Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities Investment securities – held-to-maturity Total Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss Customer Contracts Customer Contracts [Member] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Other assets Other Assets Fair Value [Member] Represents Other Assets at Fair Value Gains (Losses) Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included In Earnings Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included In Earnings Permitted by contract or custom to sell or repledge Fair Value of Securities Received as Collateral that Can be Resold or Repledged Less: Collateral posted Collateral Already Posted, Aggregate Fair Value No FICO score available or required No Fico Score Available Or Required [Member]