Derivative Instruments and Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (USD $)	Jun. 29, 2013		Dec. 29, 2012
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	$ 10,000,000		$ 68,000,000
Liabilities	(97,000,000)		(41,000,000)
Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	5,000,000		5,000,000
Liabilities	(19,000,000)		(3,000,000)
Level 1 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	0		0
Liabilities	0		0
Level 1 [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	4,000,000		5,000,000
Liabilities	(19,000,000)		(3,000,000)
Level 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	10,000,000		68,000,000
Liabilities	(97,000,000)		(41,000,000)
Level 2 [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	1,000,000		0
Liabilities	0		0
Foreign Currency Exchange Contracts [Member] | Other Prepaid Assets [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	10,000,000		4,000,000
Foreign Currency Exchange Contracts [Member] | Other Prepaid Assets [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	1,000,000		0
Foreign Currency Exchange Contracts [Member] | Other Prepaid Assets [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	0		0
Foreign Currency Exchange Contracts [Member] | Other Prepaid Assets [Member] | Level 1 [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	0		0
Foreign Currency Exchange Contracts [Member] | Other Prepaid Assets [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	10,000,000		4,000,000
Foreign Currency Exchange Contracts [Member] | Other Prepaid Assets [Member] | Level 2 [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	1,000,000		0
Foreign Currency Exchange Contracts [Member] | Other Current Liabilities [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(4,000,000)		(3,000,000)
Foreign Currency Exchange Contracts [Member] | Other Current Liabilities [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	0		0
Foreign Currency Exchange Contracts [Member] | Other Current Liabilities [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(4,000,000)		(3,000,000)
Interest Rate Contracts [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Fair value of the related hedged portion of long-term debt	2,500,000,000		2,300,000,000
Interest Rate Contracts [Member] | Other Assets [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	0	[1]	64,000,000	[1]
Interest Rate Contracts [Member] | Other Assets [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	0		0
Interest Rate Contracts [Member] | Other Assets [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	0	[1]	64,000,000	[1]
Interest Rate Contracts [Member] | Other Liabilities [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(59,000,000)		0
Interest Rate Contracts [Member] | Other Liabilities [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	0		0
Interest Rate Contracts [Member] | Other Liabilities [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(59,000,000)		0
Commodity Contracts [Member] | Other Prepaid Assets [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	4,000,000		5,000,000
Commodity Contracts [Member] | Other Prepaid Assets [Member] | Level 1 [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	4,000,000		5,000,000
Commodity Contracts [Member] | Other Prepaid Assets [Member] | Level 2 [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	0		0
Commodity Contracts [Member] | Other Current Liabilities [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(11,000,000)		(11,000,000)
Commodity Contracts [Member] | Other Current Liabilities [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(19,000,000)		(3,000,000)
Commodity Contracts [Member] | Other Current Liabilities [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	0		0
Commodity Contracts [Member] | Other Current Liabilities [Member] | Level 1 [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(19,000,000)		(3,000,000)
Commodity Contracts [Member] | Other Current Liabilities [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(11,000,000)		(11,000,000)
Commodity Contracts [Member] | Other Current Liabilities [Member] | Level 2 [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Liabilities	0		0
Commodity Contracts [Member] | Other Liabilities [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(23,000,000)		(27,000,000)
Commodity Contracts [Member] | Other Liabilities [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	0		0
Commodity Contracts [Member] | Other Liabilities [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	$ (23,000,000)		$ (27,000,000)

[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 June 29, 2013 and $2.3 billion as of December 29, 2012.