v3.22.4
Cover Page - shares
 6 Months Ended
Dec. 25, 2022
Jan. 26, 2023
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Dec. 25, 2022  
Document Transition Report false  
Entity File Number 0-12933  
Entity Registrant Name LAM RESEARCH CORPORATION  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 94-2634797  
Entity Address, Address Line One 4650 Cushing Parkway,  
Entity Address, City or Town Fremont,  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94538  
City Area Code 510  
Local Phone Number 572-0200  
Title of 12(b) Security Common Stock, Par Value $0.001 Per Share  
Trading Symbol LRCX  
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   134,936,209
Amendment Flag false  
Document Fiscal Year Focus 2023  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0000707549  
Current Fiscal Year End Date --06-25