| Document and Entity Information | Feb. 03, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Feb. 3, 2021 |
| Entity Registrant Name | Performance Food Group Co |
| Entity Central Index Key | 0001618673 |
| Entity Emerging Growth Company | false |
| Entity File Number | 001-37578 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 43-1983182 |
| Entity Address, Address Line One | 12500 West Creek Parkway |
| Entity Address, City or Town | Richmond |
| Entity Address, State or Province | VA |
| City Area Code | 804 |
| Entity Address, Postal Zip Code | 23238 |
| Local Phone Number | 484-7700 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $0.01 par value |
| Trading Symbol | PFGC |
| Security Exchange Name | NYSE |
