Segment, Geographic and Other Revenue Information - Revenues By Geographic Area (Detail) - USD ($) $ in Millions		3 Months Ended
		Apr. 02, 2017	Apr. 03, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1],[2]	$ 12,779	$ 13,005
Percentage Change In Revenue	[2]	(2.00%)
U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	$ 6,637	6,661
Percentage Change In Revenue	[2]	0.00%
Developed Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2],[3]	$ 2,021	2,346
Percentage Change In Revenue	[2],[3]	(14.00%)
Developed Rest Of World [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2],[4]	$ 1,554	1,516
Percentage Change In Revenue	[2],[4]	3.00%
Emerging Markets [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2],[5]	$ 2,567	$ 2,482
Percentage Change In Revenue	[2],[5]	3.00%

[1] Amounts may not add due to rounding.

[2] Medivation’s and Anacor’s commercial operations are included in our condensed consolidated statements of income, commencing from their respective acquisition dates of September 28, 2016 and June 24, 2016. Therefore, our results of operations for the first quarter of 2016 do not include financial results from Medivation or Anacor. On February 3, 2017, we completed the sale of our global infusion therapy net assets, HIS, to ICU Medical. The commercial operations of HIS are included in our condensed consolidated statements of income through February 2, 2017 and, therefore, our financial results for the first quarter of 2017 reflect approximately one month of legacy HIS domestic operations and approximately two months of legacy HIS international operations, while financial results in our condensed consolidated statements of income for the first quarter of 2016 reflect three months of legacy HIS global operations.

[3] Developed Europe region includes the following markets: Western Europe, Scandinavian countries and Finland. Revenues denominated in euros were $1.6 billion and $1.8 billion in the first quarter of 2017 and 2016, respectively.

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

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