Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024
Disaggregation of Revenue [Line Items]
Net sales	$ 3,009	$ 2,790	$ 8,302	$ 7,806
Direct
Disaggregation of Revenue [Line Items]
Net sales	2,193	2,025	6,162	5,586
Indirect
Disaggregation of Revenue [Line Items]
Net sales	816	765	2,140	2,220
Mission Critical Networks (MCN)
Disaggregation of Revenue [Line Items]
Net sales	2,241	2,088	6,147	5,851
Video
Disaggregation of Revenue [Line Items]
Net sales	534	500	1,498	1,374
Command Center
Disaggregation of Revenue [Line Items]
Net sales	234	202	657	581
North America
Disaggregation of Revenue [Line Items]
Net sales	2,121	2,007	6,000	5,616
International
Disaggregation of Revenue [Line Items]
Net sales	888	783	2,302	2,190
Products and Systems Integration
Disaggregation of Revenue [Line Items]
Net sales	1,897	1,784	5,095	4,933
Products and Systems Integration | Direct
Disaggregation of Revenue [Line Items]
Net sales	1,187	1,108	3,233	2,969
Products and Systems Integration | Indirect
Disaggregation of Revenue [Line Items]
Net sales	710	676	1,862	1,964
Products and Systems Integration | Mission Critical Networks (MCN)
Disaggregation of Revenue [Line Items]
Net sales	1,598	1,492	4,269	4,112
Products and Systems Integration | Video
Disaggregation of Revenue [Line Items]
Net sales	299	292	826	821
Products and Systems Integration | Command Center
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Products and Systems Integration | North America
Disaggregation of Revenue [Line Items]
Net sales	1,360	1,304	3,789	3,631
Products and Systems Integration | International
Disaggregation of Revenue [Line Items]
Net sales	537	480	1,306	1,302
Software and Services
Disaggregation of Revenue [Line Items]
Net sales	1,112	1,006	3,207	2,873
Software and Services | Direct
Disaggregation of Revenue [Line Items]
Net sales	1,006	917	2,929	2,617
Software and Services | Indirect
Disaggregation of Revenue [Line Items]
Net sales	106	89	278	256
Software and Services | Mission Critical Networks (MCN)
Disaggregation of Revenue [Line Items]
Net sales	643	596	1,878	1,739
Software and Services | Video
Disaggregation of Revenue [Line Items]
Net sales	235	208	672	553
Software and Services | Command Center
Disaggregation of Revenue [Line Items]
Net sales	234	202	657	581
Software and Services | North America
Disaggregation of Revenue [Line Items]
Net sales	761	703	2,211	1,985
Software and Services | International
Disaggregation of Revenue [Line Items]
Net sales	$ 351	$ 303	$ 996	$ 888