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Summary of Significant Accounting Policies - Recent Acquisitions (Details) - USD ($)
$ in Millions
Dec. 15, 2023
Dec. 14, 2022
Oct. 25, 2022
Aug. 08, 2022
May 12, 2022
Apr. 19, 2022
Mar. 23, 2022
Mar. 03, 2022
Dec. 16, 2021
Oct. 29, 2021
Jul. 15, 2021
IPVideo                      
Business Acquisition [Line Items]                      
Cash paid for acquisition $ 170                    
Share-based compensation fair value $ 5                    
Rave Mobile                      
Business Acquisition [Line Items]                      
Cash paid for acquisition   $ 553                  
Share-based compensation fair value   $ 2                  
Share-based compensation arrangement, award requisite service period   2 years                  
Futurecom Systems Group, ULC                      
Business Acquisition [Line Items]                      
Cash paid for acquisition     $ 30                
Barrett Communications Pty Ltd                      
Business Acquisition [Line Items]                      
Cash paid for acquisition       $ 18              
Videotec S.p.A.                      
Business Acquisition [Line Items]                      
Cash paid for acquisition         $ 23            
Share-based compensation fair value         $ 4            
Share-based compensation arrangement, award requisite service period         1 year            
Calipsa, Inc                      
Business Acquisition [Line Items]                      
Cash paid for acquisition           $ 39          
Share-based compensation fair value           $ 4          
Share-based compensation arrangement, award requisite service period           2 years          
TETRA Ireland Communications Limited                      
Business Acquisition [Line Items]                      
Cash paid for acquisition             $ 120        
Ava Security Limited                      
Business Acquisition [Line Items]                      
Cash paid for acquisition               $ 388      
Share-based compensation fair value               $ 7      
Share-based compensation arrangement, award requisite service period               2 years      
911 Datamaster                      
Business Acquisition [Line Items]                      
Cash paid for acquisition                 $ 35    
Share-based compensation fair value                 $ 3    
Average service period                 2 years    
Envysion                      
Business Acquisition [Line Items]                      
Cash paid for acquisition                   $ 124  
Share-based compensation fair value                   $ 1  
Average service period                   1 year  
Openpath                      
Business Acquisition [Line Items]                      
Cash paid for acquisition                     $ 298
Share-based compensation fair value                     $ 29
Average service period                     3 years