Geographical Information (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 6,078	$ 4,990	$ 11,931	$ 9,755
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	2,914	2,484	5,670	4,861
CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	648	512	1,189	953
All Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	$ 2,516	$ 1,994	$ 5,072	$ 3,941

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