Segment, Geographic and Other Revenue Information - Revenues By Geographic Area - Footnotes (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	$ 13,168	$ 13,045	$ 38,843	$ 39,196
Developed Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	2,163	2,218	6,309	6,982
Euro Member Countries, Euro [Member] | Developed Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 1,700	$ 1,700	$ 5,000	$ 5,300

[1] Amounts may not add due to rounding.

[2] Developed Europe region includes the following markets: Western Europe, Scandinavian countries and Finland. Revenues denominated in euros were $1.7 billion in both the third quarter of 2017 and 2016, and $5.0 billion and $5.3 billion in the first nine months of 2017 and 2016, respectively.