Geographical Information (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 6,316	$ 6,078	$ 12,441	$ 11,931
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	3,103	2,914	6,021	5,670
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	724	648	1,378	1,189
All Other Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	$ 2,489	$ 2,516	$ 5,042	$ 5,072

[1] Revenues are attributed to countries based on customer location.