Segment, Geographic and Other Revenue Information - Revenues By Geographic Area (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jul. 01, 2018	Jul. 02, 2017	Jul. 01, 2018	Jul. 02, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	$ 13,466	$ 12,896	$ 26,373	$ 25,675
Percentage Change In Revenue		4.00%		3.00%
U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 6,225	6,345	$ 12,500	12,982
Percentage Change In Revenue		(2.00%)		(4.00%)
Developed Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	$ 2,334	2,124	$ 4,426	4,145
Percentage Change In Revenue	[2]	10.00%		7.00%
Developed Rest Of World [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[3]	$ 1,694	1,611	$ 3,155	3,165
Percentage Change In Revenue	[3]	5.00%
Emerging Markets [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[4]	$ 3,214	$ 2,815	$ 6,292	$ 5,382
Percentage Change In Revenue	[4]	14.00%		17.00%

[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 $1.9 billion and $1.7 billion in the second quarter of 2018 and 2017, respectively, and $3.6 billion and $3.3 billion in the first six months of 2018 and 2017, respectively.

[3] Developed Rest of World region includes the following markets: Japan, Canada, Australia, South Korea and New Zealand.

[4] Emerging Markets region includes, but is not limited to, the following markets: Asia (excluding Japan and South Korea), Latin America, Eastern Europe, Africa, the Middle East, Central Europe and Turkey.