Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 1,868	$ 1,994	$ 5,141	$ 5,511
Products and Systems Integration
Disaggregation of Revenue [Line Items]
Net sales	1,163	1,349	3,124	3,656
Products and Systems Integration | Direct
Disaggregation of Revenue [Line Items]
Net sales	733	860	2,008	2,289
Products and Systems Integration | Indirect
Disaggregation of Revenue [Line Items]
Net sales	430	489	1,116	1,367
Products and Systems Integration | Devices
Disaggregation of Revenue [Line Items]
Net sales	719	896	1,921	2,391
Products and Systems Integration | Systems and Systems Integration
Disaggregation of Revenue [Line Items]
Net sales	444	453	1,203	1,265
Products and Systems Integration | Services
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Products and Systems Integration | Software
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Products and Systems Integration | North America
Disaggregation of Revenue [Line Items]
Net sales	863	980	2,330	2,646
Products and Systems Integration | International
Disaggregation of Revenue [Line Items]
Net sales	300	369	794	1,010
Software and Services
Disaggregation of Revenue [Line Items]
Net sales	705	645	2,017	1,855
Software and Services | Direct
Disaggregation of Revenue [Line Items]
Net sales	637	602	1,869	1,737
Software and Services | Indirect
Disaggregation of Revenue [Line Items]
Net sales	68	43	148	118
Software and Services | Devices
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Software and Services | Systems and Systems Integration
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Software and Services | Services
Disaggregation of Revenue [Line Items]
Net sales	514	479	1,490	1,400
Software and Services | Software
Disaggregation of Revenue [Line Items]
Net sales	191	166	527	455
Software and Services | North America
Disaggregation of Revenue [Line Items]
Net sales	405	364	1,146	1,026
Software and Services | International
Disaggregation of Revenue [Line Items]
Net sales	$ 300	$ 281	$ 871	$ 829