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Segment, Geographic and Other Revenue Information - Revenues By Geographic Area (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
Percentage Change In Revenue |  | 1.00% |  | (1.00%) |
U.S. [Member] |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |
Revenues |  | $ 6,534 | 6,530 | $ 19,516 | 19,561
Percentage Change In Revenue |  | 0.00% |  | 0.00% |
Developed Europe [Member] |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |
Revenues | [2] | $ 2,163 | 2,218 | $ 6,309 | 6,982
Percentage Change In Revenue | [2] | (2.00%) |  | (10.00%) |
Developed Rest Of World [Member] |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |
Revenues | [3] | $ 1,632 | 1,711 | $ 4,797 | 4,940
Percentage Change In Revenue | [3] | (5.00%) |  | (3.00%) |
Emerging Markets [Member] |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |
Revenues | [4] | $ 2,839 | $ 2,586 | $ 8,222 | $ 7,714
Percentage Change In Revenue | [4] | 10.00% |  | 7.00% |
[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 $1.7 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.
[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, Africa, Eastern Europe, Central Europe, the Middle East and Turkey.

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