Income Taxes - ASU Updates (Details) - USD ($) $ in Millions	Apr. 02, 2016	Jan. 02, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current liabilities	$ (875)	$ (901)
ASU 2015-17
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current assets (excluding Deferred income taxes)		269
Other current liabilities		(510)
ASU 2015-17 | Other current assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes (within Other current assets)		0
ASU 2015-17 | Other assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes (within Other assets)		151
ASU 2015-17 | Other liabilities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes (within Other liabilities)		(581)
ASU 2015-17 | Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current assets (excluding Deferred income taxes)		188
Other current liabilities		(517)
ASU 2015-17 | Previously Reported | Other current assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes (within Other current assets)		264
ASU 2015-17 | Previously Reported | Other assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes (within Other assets)		132
ASU 2015-17 | Previously Reported | Other liabilities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes (within Other liabilities)		(738)
ASU 2015-17 | Impact
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current assets (excluding Deferred income taxes)		81
Other current liabilities		7
ASU 2015-17 | Impact | Other current assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes (within Other current assets)		(264)
ASU 2015-17 | Impact | Other assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes (within Other assets)		19
ASU 2015-17 | Impact | Other liabilities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes (within Other liabilities)		$ 157