| Document and Entity Information | Sep. 30, 2020 |
| Cover [Abstract] | |
| Entity Registrant Name | ANALOG DEVICES INC |
| Amendment Flag | false |
| Entity Central Index Key | 0000006281 |
| Document Type | 8-K |
| Document Period End Date | Sep. 30, 2020 |
| Entity Incorporation State Country Code | MA |
| Entity File Number | 1-7819 |
| Entity Tax Identification Number | 04-2348234 |
| Entity Address, Address Line One | One Technology Way |
| Entity Address, City or Town | Norwood |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 02062 |
| City Area Code | (781) |
| Local Phone Number | 329-4700 |
| Written Communications | true |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock $0.16 2/3 par value per share |
| Trading Symbol | ADI |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
