Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Accounting Policies and New Accounting Standards [Line Items]
Income Tax Examination Percentage Likelihood Of Unfavorable Settlement	50.00%
Maximum Length of Time, Foreign Currency Cash Flow Hedge	18 months
Maximum Length of Time Hedged in Price Risk Cash Flow Hedge	18 months
Payables Placed On Tracking System	$ 677	$ 524
Payables Financed By Participating Suppliers	507	425
Excess Tax Benefit From Share Based Compensation	36
Excess Tax Benefit from Share-based Compensation, Operating Activities	36
Excess Tax Benefit from Share-based Compensation, Financing Activities	36	14	$ 11
Deferred Tax Assets, Net, Current		227
Deferred Tax Liabilities, Net, Current		(9)
Reductions credited to income tax expense	(4)	(7)	$ (3)
Income Tax Credits and Adjustments	$ 38
Minimum
Accounting Policies and New Accounting Standards [Line Items]
Expected rates of return	25th
Maximum
Accounting Policies and New Accounting Standards [Line Items]
Expected rates of return	75th
Other Current Assets [Member]
Accounting Policies and New Accounting Standards [Line Items]
Deferred Tax Assets, Net	$ 0	$ (227)
Machinery and Equipment [Member] | Minimum
Accounting Policies and New Accounting Standards [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Machinery and Equipment [Member] | Maximum
Accounting Policies and New Accounting Standards [Line Items]
Property, Plant and Equipment, Useful Life	30 years
Office Equipment [Member] | Minimum
Accounting Policies and New Accounting Standards [Line Items]
Property, Plant and Equipment, Useful Life	4 years
Office Equipment [Member] | Maximum
Accounting Policies and New Accounting Standards [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Computer Equipment and Capitalized Software [Member] | Minimum
Accounting Policies and New Accounting Standards [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Computer Equipment and Capitalized Software [Member] | Maximum
Accounting Policies and New Accounting Standards [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Building [Member] | Minimum
Accounting Policies and New Accounting Standards [Line Items]
Property, Plant and Equipment, Useful Life	30 years
Building [Member] | Maximum
Accounting Policies and New Accounting Standards [Line Items]
Property, Plant and Equipment, Useful Life	50 years
Building Components [Member] | Minimum
Accounting Policies and New Accounting Standards [Line Items]
Property, Plant and Equipment, Useful Life	15 years
Building Components [Member] | Maximum
Accounting Policies and New Accounting Standards [Line Items]
Property, Plant and Equipment, Useful Life	25 years