Document and Entity Information Document - USD ($)
12 Months Ended
Nov. 04, 2018
Nov. 30, 2018
May 04, 2018
Document and Entity Section Information [Abstract]      
Entity Registrant Name Broadcom Inc.    
Entity Central Index Key 0001730168    
Current Fiscal Year End Date --11-04    
Document Type 10-K    
Document Period End Date Nov. 04, 2018    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status 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   407,270,901  
Entity Public Float     $ 97,800,000,000