Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2025	Jun. 29, 2024	Jun. 28, 2025	Jun. 29, 2024
Disaggregation of Revenue [Line Items]
Net sales	$ 2,765	$ 2,628	$ 5,293	$ 5,017
Direct
Disaggregation of Revenue [Line Items]
Net sales	2,046	1,880	3,969	3,562
Indirect
Disaggregation of Revenue [Line Items]
Net sales	719	748	1,324	1,455
LMR Communications
Disaggregation of Revenue [Line Items]
Net sales	2,005	1,941	3,906	3,764
Video
Disaggregation of Revenue [Line Items]
Net sales	523	476	964	874
Command Center
Disaggregation of Revenue [Line Items]
Net sales	237	211	423	379
North America
Disaggregation of Revenue [Line Items]
Net sales	2,027	1,917	3,879	3,610
International
Disaggregation of Revenue [Line Items]
Net sales	738	711	1,414	1,407
Products and Systems Integration
Disaggregation of Revenue [Line Items]
Net sales	1,653	1,658	3,199	3,149
Products and Systems Integration \| Direct
Disaggregation of Revenue [Line Items]
Net sales	1,030	1,000	2,046	1,861
Products and Systems Integration \| Indirect
Disaggregation of Revenue [Line Items]
Net sales	623	658	1,153	1,288
Products and Systems Integration \| LMR Communications
Disaggregation of Revenue [Line Items]
Net sales	1,356	1,363	2,671	2,620
Products and Systems Integration \| Video
Disaggregation of Revenue [Line Items]
Net sales	297	295	528	529
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	1,251	1,245	2,429	2,328
Products and Systems Integration \| International
Disaggregation of Revenue [Line Items]
Net sales	402	413	770	821
Software and Services
Disaggregation of Revenue [Line Items]
Net sales	1,112	970	2,094	1,868
Software and Services \| Direct
Disaggregation of Revenue [Line Items]
Net sales	1,016	880	1,923	1,701
Software and Services \| Indirect
Disaggregation of Revenue [Line Items]
Net sales	96	90	171	167
Software and Services \| LMR Communications
Disaggregation of Revenue [Line Items]
Net sales	649	578	1,235	1,144
Software and Services \| Video
Disaggregation of Revenue [Line Items]
Net sales	226	181	436	345
Software and Services \| Command Center
Disaggregation of Revenue [Line Items]
Net sales	237	211	423	379
Software and Services \| North America
Disaggregation of Revenue [Line Items]
Net sales	776	672	1,450	1,282
Software and Services \| International
Disaggregation of Revenue [Line Items]
Net sales	$ 336	$ 298	$ 644	$ 586