Document and Entity Information Document - USD ($) $ in Billions	12 Months Ended
	Oct. 02, 2020	Jan. 22, 2021	Mar. 27, 2020
Cover page [Abstract]
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Title of 12(b) Security	Common Stock, par value $0.25 per share
Entity Address, Address Line One	5260 California Avenue
Entity Incorporation, State or Country Code	DE
Document Transition Report	false
Document Type	10-K/A
Document Annual Report	true
Document Period End Date	Oct. 02, 2020
Entity Tax Identification Number	04-2302115
Entity Address, City or Town	Irvine
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92617
City Area Code	(949)
Local Phone Number	231-3000
Trading Symbol	SWKS
Security Exchange Name	NASDAQ
Entity File Number	001-05560
Entity Registrant Name	Skyworks Solutions, Inc.
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Public Float			$ 14.5
Entity Common Stock, Shares Outstanding		164,900,017
Entity Central Index Key	0000004127
Amendment Flag	true
Amendment Description	No. 1
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--10-02
Entity Small Business	false
Entity Emerging Growth Company	false