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Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2022	Apr. 03, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 1,892	$ 1,773
Direct
Disaggregation of Revenue [Line Items]
Net sales	1,358	1,294
Indirect
Disaggregation of Revenue [Line Items]
Net sales	534	479
LMR Communications
Disaggregation of Revenue [Line Items]
Net sales	1,455	1,401
Video Security and Access Control
Disaggregation of Revenue [Line Items]
Net sales	307	253
Command Center Software
Disaggregation of Revenue [Line Items]
Net sales	130	119
North America
Disaggregation of Revenue [Line Items]
Net sales	1,305	1,185
International
Disaggregation of Revenue [Line Items]
Net sales	587	588
Products and Systems Integration
Disaggregation of Revenue [Line Items]
Net sales	1,103	1,015
Products and Systems Integration | Direct
Disaggregation of Revenue [Line Items]
Net sales	656	604
Products and Systems Integration | Indirect
Disaggregation of Revenue [Line Items]
Net sales	447	411
Products and Systems Integration | LMR Communications
Disaggregation of Revenue [Line Items]
Net sales	909	850
Products and Systems Integration | Video Security and Access Control
Disaggregation of Revenue [Line Items]
Net sales	194	165
Products and Systems Integration | Command Center Software
Disaggregation of Revenue [Line Items]
Net sales	0	0
Products and Systems Integration | North America
Disaggregation of Revenue [Line Items]
Net sales	831	742
Products and Systems Integration | International
Disaggregation of Revenue [Line Items]
Net sales	272	273
Software and Services
Disaggregation of Revenue [Line Items]
Net sales	789	758
Software and Services | Direct
Disaggregation of Revenue [Line Items]
Net sales	702	690
Software and Services | Indirect
Disaggregation of Revenue [Line Items]
Net sales	87	68
Software and Services | LMR Communications
Disaggregation of Revenue [Line Items]
Net sales	546	551
Software and Services | Video Security and Access Control
Disaggregation of Revenue [Line Items]
Net sales	113	88
Software and Services | Command Center Software
Disaggregation of Revenue [Line Items]
Net sales	130	119
Software and Services | North America
Disaggregation of Revenue [Line Items]
Net sales	474	443
Software and Services | International
Disaggregation of Revenue [Line Items]
Net sales	$ 315	$ 315

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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