Cover Page - shares shares in Millions	6 Months Ended
	Jul. 31, 2021	Aug. 20, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jul. 31, 2021
Document Transition Report	false
Entity File Number	000-30877
Entity Registrant Name	MARVELL TECHNOLOGY, INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	85-3971597
Entity Address, Address Line One	1000 N. West Street, Suite 1200
Entity Address, City or Town	Wilmington
Entity Address, State or Province	DE
Entity Address, Postal Zip Code	19801
City Area Code	302
Local Phone Number	295-4840
Title of 12(b) Security	Common Stock, par value $0.002 per share
Trading Symbol	MRVL
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		823.6
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001835632
Current Fiscal Year End Date	--01-30