Derivative Instruments and Fair Value Measurements Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions		Jan. 02, 2016	Jan. 03, 2015
Derivative [Line Items]
Fair Value Of Related Hedge Portion Of Long Term Debt			$ 2,500
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Other current assets		$ 11	36
Liabilities		(24)	(48)
Designated as Hedging Instrument [Member] | Level 1 [Member]
Derivative [Line Items]
Other current assets		0	0
Liabilities		0	0
Designated as Hedging Instrument [Member] | Level 2 [Member]
Derivative [Line Items]
Other current assets		11	36
Liabilities		(24)	(48)
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Other Current Assets [Member]
Derivative [Line Items]
Other current assets		11	29
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		(10)	(6)
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Level 1 [Member] | Other Current Assets [Member]
Derivative [Line Items]
Other current assets		0	0
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Level 1 [Member] | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		0	0
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Level 2 [Member] | Other Current Assets [Member]
Derivative [Line Items]
Other current assets		11	29
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Level 2 [Member] | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		(10)	(6)
Designated as Hedging Instrument [Member] | Interest rate contracts | Other Assets [Member]
Derivative [Line Items]
Other current assets	[1]	0	7
Designated as Hedging Instrument [Member] | Interest rate contracts | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		0	(3)
Designated as Hedging Instrument [Member] | Interest rate contracts | Other Liabilities [Member]
Derivative [Line Items]
Liabilities		0	(16)
Designated as Hedging Instrument [Member] | Interest rate contracts | Level 1 [Member] | Other Assets [Member]
Derivative [Line Items]
Other current assets	[1]	0	0
Designated as Hedging Instrument [Member] | Interest rate contracts | Level 1 [Member] | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		0	0
Designated as Hedging Instrument [Member] | Interest rate contracts | Level 1 [Member] | Other Liabilities [Member]
Derivative [Line Items]
Liabilities		0	0
Designated as Hedging Instrument [Member] | Interest rate contracts | Level 2 [Member] | Other Assets [Member]
Derivative [Line Items]
Other current assets	[1]	0	7
Designated as Hedging Instrument [Member] | Interest rate contracts | Level 2 [Member] | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		0	(3)
Designated as Hedging Instrument [Member] | Interest rate contracts | Level 2 [Member] | Other Liabilities [Member]
Derivative [Line Items]
Liabilities		0	(16)
Designated as Hedging Instrument [Member] | Commodity contracts | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		(14)	(12)
Designated as Hedging Instrument [Member] | Commodity contracts | Other Liabilities [Member]
Derivative [Line Items]
Liabilities		0	(11)
Designated as Hedging Instrument [Member] | Commodity contracts | Level 1 [Member] | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		0	0
Designated as Hedging Instrument [Member] | Commodity contracts | Level 1 [Member] | Other Liabilities [Member]
Derivative [Line Items]
Liabilities		0	0
Designated as Hedging Instrument [Member] | Commodity contracts | Level 2 [Member] | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		(14)	(12)
Designated as Hedging Instrument [Member] | Commodity contracts | Level 2 [Member] | Other Liabilities [Member]
Derivative [Line Items]
Liabilities		0	(11)
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Other current assets		22	7
Liabilities		(39)	(40)
Not Designated as Hedging Instrument [Member] | Level 1 [Member]
Derivative [Line Items]
Other current assets		4	7
Liabilities		(33)	(40)
Not Designated as Hedging Instrument [Member] | Level 2 [Member]
Derivative [Line Items]
Other current assets		18	0
Liabilities		(6)	0
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Other Current Assets [Member]
Derivative [Line Items]
Other current assets		18	0
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		(6)	0
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Level 1 [Member] | Other Current Assets [Member]
Derivative [Line Items]
Other current assets		0	0
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Level 1 [Member] | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		0	0
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Level 2 [Member] | Other Current Assets [Member]
Derivative [Line Items]
Other current assets		18	0
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Level 2 [Member] | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		(6)	0
Not Designated as Hedging Instrument [Member] | Commodity contracts | Other Current Assets [Member]
Derivative [Line Items]
Other current assets		4	7
Not Designated as Hedging Instrument [Member] | Commodity contracts | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		(33)	(36)
Not Designated as Hedging Instrument [Member] | Commodity contracts | Other Liabilities [Member]
Derivative [Line Items]
Liabilities		0	(4)
Not Designated as Hedging Instrument [Member] | Commodity contracts | Level 1 [Member] | Other Current Assets [Member]
Derivative [Line Items]
Other current assets		4	7
Not Designated as Hedging Instrument [Member] | Commodity contracts | Level 1 [Member] | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		(33)	(36)
Not Designated as Hedging Instrument [Member] | Commodity contracts | Level 1 [Member] | Other Liabilities [Member]
Derivative [Line Items]
Liabilities		0	(4)
Not Designated as Hedging Instrument [Member] | Commodity contracts | Level 2 [Member] | Other Current Assets [Member]
Derivative [Line Items]
Other current assets		0	0
Not Designated as Hedging Instrument [Member] | Commodity contracts | Level 2 [Member] | Other Current Liabilities [Member]
Derivative [Line Items]
Liabilities		0	0
Not Designated as Hedging Instrument [Member] | Commodity contracts | Level 2 [Member] | Other Liabilities [Member]
Derivative [Line Items]
Liabilities		$ 0	$ 0

[1] The fair value of the related hedged portion of the Company’s long-term debt, a level 2 liability, was $2.5 billion as of January 3, 2015.