Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 04, 2026	Jun. 28, 2025	Jul. 04, 2026	Jun. 28, 2025
Disaggregation of Revenue [Line Items]
Net sales	$ 3,133	$ 2,765	$ 5,848	$ 5,293
Direct
Disaggregation of Revenue [Line Items]
Net sales	2,340	2,046	4,338	3,969
Indirect
Disaggregation of Revenue [Line Items]
Net sales	793	719	1,510	1,324
Mission Critical Networks (MCN)
Disaggregation of Revenue [Line Items]
Net sales	2,280	2,005	4,249	3,906
Video
Disaggregation of Revenue [Line Items]
Net sales	584	523	1,093	964
Command Center
Disaggregation of Revenue [Line Items]
Net sales	269	237	506	423
North America
Disaggregation of Revenue [Line Items]
Net sales	2,210	2,027	4,067	3,879
International
Disaggregation of Revenue [Line Items]
Net sales	923	738	1,781	1,414
Products and Systems Integration
Disaggregation of Revenue [Line Items]
Net sales	1,908	1,653	3,468	3,199
Products and Systems Integration \| Direct
Disaggregation of Revenue [Line Items]
Net sales	1,226	1,030	2,171	2,046
Products and Systems Integration \| Indirect
Disaggregation of Revenue [Line Items]
Net sales	682	623	1,297	1,153
Products and Systems Integration \| Mission Critical Networks (MCN)
Disaggregation of Revenue [Line Items]
Net sales	1,567	1,356	2,856	2,671
Products and Systems Integration \| Video
Disaggregation of Revenue [Line Items]
Net sales	341	297	612	528
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	1,361	1,251	2,426	2,429
Products and Systems Integration \| International
Disaggregation of Revenue [Line Items]
Net sales	547	402	1,042	770
Software and Services
Disaggregation of Revenue [Line Items]
Net sales	1,225	1,112	2,380	2,094
Software and Services \| Direct
Disaggregation of Revenue [Line Items]
Net sales	1,114	1,016	2,167	1,923
Software and Services \| Indirect
Disaggregation of Revenue [Line Items]
Net sales	111	96	213	171
Software and Services \| Mission Critical Networks (MCN)
Disaggregation of Revenue [Line Items]
Net sales	713	649	1,393	1,235
Software and Services \| Video
Disaggregation of Revenue [Line Items]
Net sales	243	226	481	436
Software and Services \| Command Center
Disaggregation of Revenue [Line Items]
Net sales	269	237	506	423
Software and Services \| North America
Disaggregation of Revenue [Line Items]
Net sales	849	776	1,641	1,450
Software and Services \| International
Disaggregation of Revenue [Line Items]
Net sales	$ 376	$ 336	$ 739	$ 644