| Cover Document | Nov. 02, 2020 |
| Cover [Abstract] | |
| Entity Central Index Key | 0000004127 |
| Written Communications | false |
| Title of 12(b) Security | Common Stock, par value $0.25 per share |
| City Area Code | (949) |
| Entity Incorporation, State or Country Code | DE |
| Document Period End Date | Nov. 2, 2020 |
| Document Type | 8-K |
| Entity Registrant Name | Skyworks Solutions, Inc. |
| Entity File Number | 001-05560 |
| Entity Tax Identification Number | 04-2302115 |
| Entity Address, Address Line One | 5260 California Avenue |
| Entity Address, City or Town | Irvine |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 92617 |
| Local Phone Number | 231-3000 |
| Trading Symbol | SWKS |
| Security Exchange Name | NASDAQ |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
