| Cover Page | Oct. 16, 2019 |
| Cover page. | |
| Document Type | 8-K |
| Document Period End Date | Oct. 16, 2019 |
| Entity Registrant Name | PNC FINANCIAL SERVICES GROUP, INC. |
| Entity File Number | 001-09718 |
| Entity Incorporation, State or Country Code | PA |
| Entity Tax Identification Number | 25-1435979 |
| Entity Address, Address Line One | 300 Fifth Avenue |
| Entity Address, City or Town | Pittsburgh |
| Entity Address, State or Province | PA |
| Entity Address, Postal Zip Code | 15222-2401 |
| City Area Code | 888 |
| Local Phone Number | 762-2265 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000713676 |
| Amendment Flag | false |
