| Cover Page | May 11, 2021 |
| Cover [Abstract] | |
| Entity Central Index Key | 0001383312 |
| Document Type | 8-K |
| Document Period End Date | May 11, 2021 |
| Entity Registrant Name | BROADRIDGE FINANCIAL SOLUTIONS, INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-33220 |
| Entity Tax Identification Number | 33-1151291 |
| Entity Address, Address Line One | 5 Dakota Drive |
| Entity Address, City or Town | Lake Success |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 11042 |
| City Area Code | 516 |
| Local Phone Number | 472-5400 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Title of 12(b) Security | Common Stock, par value $0.01 per share |
| Trading Symbol | BR |
| Security Exchange Name | NYSE |
| Amendment Flag | false |
