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v3.22.2

Subsequent Events (Details) - USD ($) $ in Billions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jul. 28, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2022
Subsequent Event [Line Items] |  |  |  |
Transferred securities at fair value from available for sale to held to maturity |  | $ 59.1 | $ 18.7 | $ 77.8
Net unrealized losses, related to securities transferred at fair value to held to maturity at a point in time |  | $ 5.4 |  | $ 5.4
Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Transferred securities at fair value from available for sale to held to maturity | $ 5.0 |  |  |
Net unrealized losses, related to securities transferred at fair value to held to maturity at a point in time | $ 0.2 |  |  |

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- Definition Debt Securities, Available-For-Sale, Transfer To Held-To-Maturity + References No definition available. + Details
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Namespace Prefix: | pnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition OCI, Debt Securities, Available-For-Sale, Transfer To Held-To-Maturity, Adjustment From AOCI For Amortization Of Gain (Loss) + References No definition available. + Details
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Namespace Prefix: | pnc_
Data Type: | xbrli:monetaryItemType
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Period Type: | instant

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |