| Cover Page Cover Page | May 19, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | May 19, 2020 |
| Entity Registrant Name | HOME DEPOT, INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 1-8207 |
| Entity Tax Identification Number | 95-3261426 |
| Entity Address, Address Line One | 2455 Paces Ferry Road |
| Entity Address, City or Town | Atlanta |
| Entity Address, State or Province | GA |
| Entity Address, Postal Zip Code | 30339 |
| City Area Code | 770 |
| Local Phone Number | 433-8211 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.05 Par Value Per Share |
| Trading Symbol | HD |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0000354950 |
