Cover Page Cover Page - USD ($)
$ in Billions
12 Months Ended
Nov. 03, 2019
Nov. 29, 2019
May 03, 2019
Entity Information [Line Items]      
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Amendment Flag false    
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Nov. 03, 2019    
Entity Registrant Name Broadcom Inc.    
Entity Incorporation, State or Country Code DE    
Entity File Number 001-38449    
Entity Tax Identification Number 35-2617337    
Entity Address, Address Line One 1320 Ridder Park Drive    
Entity Address, City or Town San Jose,    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 95131-2313    
City Area Code (408)     
Local Phone Number 433-8000    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
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 Public Float     $ 122.7
Entity Common Stock, Shares Outstanding   397,792,289  
Documents Incorporated by Reference [Text Block] Information required in response to Part III of this Annual Report on Form 10-K is hereby incorporated by reference from the registrant’s definitive Proxy Statement for its 2020 Annual Meeting of Stockholders. Except as expressly incorporated by reference, the registrant’s Proxy Statement shall not be deemed to be a part of this Annual Report on Form 10-K. The registrant intends to file its definitive Proxy Statement within 120 days after its fiscal year ended November 3, 2019    
Current Fiscal Year End Date --11-03    
Entity Central Index Key 0001730168    
Common Stock      
Entity Information [Line Items]      
Title of 12(b) Security Common Stock, $0.001 par value    
Trading Symbol AVGO    
Security Exchange Name NASDAQ    
Series A Preferred Stock      
Entity Information [Line Items]      
Title of 12(b) Security 8.00% Mandatory Convertible Preferred Stock, Series A, $0.001 par value    
Trading Symbol AVGOP    
Security Exchange Name NASDAQ