Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 31, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Net Sales	$ 2,377	$ 1,994	$ 1,860	$ 1,657	$ 2,254	$ 1,862	$ 1,760	$ 1,468	$ 7,887	$ 7,343	$ 6,380
Services
Disaggregation of Revenue [Line Items]
Net Sales									3,141	2,880	2,608
Products and Systems Integration
Disaggregation of Revenue [Line Items]
Net Sales									5,329	5,100	4,513
Products and Systems Integration | Direct
Disaggregation of Revenue [Line Items]
Net Sales									3,441	3,317
Products and Systems Integration | Indirect
Disaggregation of Revenue [Line Items]
Net Sales									1,888	1,783
Products and Systems Integration | Devices
Disaggregation of Revenue [Line Items]
Net Sales									3,467	3,216
Products and Systems Integration | Systems and Systems Integration
Disaggregation of Revenue [Line Items]
Net Sales									1,862	1,884
Products and Systems Integration | Services
Disaggregation of Revenue [Line Items]
Net Sales									0	0
Products and Systems Integration | Software
Disaggregation of Revenue [Line Items]
Net Sales									0	0
Products and Systems Integration | Americas
Disaggregation of Revenue [Line Items]
Net Sales									4,107	3,743
Products and Systems Integration | EMEA
Disaggregation of Revenue [Line Items]
Net Sales									730	845
Products and Systems Integration | Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales									492	512
Software and Services
Disaggregation of Revenue [Line Items]
Net Sales									2,558	2,243	$ 1,867
Software and Services | Direct
Disaggregation of Revenue [Line Items]
Net Sales									2,395	2,134
Software and Services | Indirect
Disaggregation of Revenue [Line Items]
Net Sales									163	109
Software and Services | Devices
Disaggregation of Revenue [Line Items]
Net Sales									0	0
Software and Services | Systems and Systems Integration
Disaggregation of Revenue [Line Items]
Net Sales									0	0
Software and Services | Services
Disaggregation of Revenue [Line Items]
Net Sales									1,896	1,815
Software and Services | Software
Disaggregation of Revenue [Line Items]
Net Sales									662	428
Software and Services | Americas
Disaggregation of Revenue [Line Items]
Net Sales									1,572	1,320
Software and Services | EMEA
Disaggregation of Revenue [Line Items]
Net Sales									821	755
Software and Services | Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales									$ 165	$ 168