COVER - shares	6 Months Ended
	Apr. 30, 2024	May 22, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Apr. 30, 2024
Document Transition Report	false
Entity File Number	000-19807
Entity Registrant Name	SYNOPSYS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	56-1546236
Entity Address, Address Line One	675 ALMANOR AVE
Entity Address, City or Town	SUNNYVALE
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94085
City Area Code	650
Local Phone Number	584-5000
Title of 12(b) Security	Common Stock(par value of $0.01 per share)
Trading Symbol	SNPS
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		153,216,093
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Entity Central Index Key	0000883241
Current Fiscal Year End Date	--10-31