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Divestitures, Discontinued Operations and Assets Held for Sale - Narrative (Details) - USD ($)
12 Months Ended
Jul. 14, 2021
Apr. 01, 2021
Oct. 01, 2020
Jul. 27, 2020
Mar. 31, 2023
Apr. 02, 2021
Sep. 30, 2022
Apr. 01, 2022
Nov. 04, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                  
Consideration from sale of properties         $ 0     $ 0  
Assets held for sale reclassified to property and equipment             $ 26,000,000    
Impairment of assets to be disposed of         23,000,000        
Other impairments         0        
Mountain View Buildings                  
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                  
Assets held for sale reclassified to property and equipment             $ 26,000,000    
Dublin Buildings                  
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                  
Assets held for sale reclassified to property and equipment         $ 23,000,000        
Discontinued Operations, Disposed of by Sale | Enterprise Security                  
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                  
Consideration from sale of properties                 $ 10,700,000,000
Agreements, aggregate amount     $ 200,000,000            
License period     5 years 7 months 6 days            
Dedicated direct costs, net of charges, for transition services agreement           $ 9,000,000      
Disposal Group, Held-for-sale, Not Discontinued Operations | Culver City Property                  
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                  
Consideration from sale of properties       $ 118,000,000          
Gain on sale of properties       $ 35,000,000          
Disposal Group, Held-for-sale, Not Discontinued Operations | Mountain View Buildings                  
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                  
Consideration from sale of properties $ 355,000,000 $ 100,000,000              
Gain on sale of properties $ 175,000,000 $ 63,000,000