Derivative Instruments and Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	Sep. 29, 2012		Dec. 31, 2011
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	$ 76		$ 36
Liabilities	(44)		(68)
Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	7		0
Level 1 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	0		2
Liabilities	0		(4)
Level 1 [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	6		0
Level 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	76		34
Liabilities	(44)		(64)
Level 2 [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	1		0
Foreign Currency Exchange Contracts [Member] | Other Prepaid Assets [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	5		11
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 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	5		11
Foreign Currency Exchange Contracts [Member] | Other Current Liabilities [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(4)		(18)
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)		(18)
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	2,400		647
Interest Rate Contracts [Member] | Other Assets [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	71	[1]	23	[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	71	[1]	23	[1]
Commodity Contracts [Member] | Other Prepaid Assets [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	0		2
Commodity Contracts [Member] | Other Prepaid Assets [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	7		0
Commodity Contracts [Member] | Other Prepaid Assets [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	0		2
Commodity Contracts [Member] | Other Prepaid Assets [Member] | Level 1 [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	6		0
Commodity Contracts [Member] | Other Prepaid Assets [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Assets	0		0
Commodity Contracts [Member] | Other Prepaid Assets [Member] | Level 2 [Member] | Not Designated [Member]
Derivatives, Fair Value [Line Items]
Assets	1		0
Commodity Contracts [Member] | Other Current Liabilities [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(11)		(16)
Commodity Contracts [Member] | Other Current Liabilities [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	0		(4)
Commodity Contracts [Member] | Other Current Liabilities [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(11)		(12)
Commodity Contracts [Member] | Other Liabilities [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liabilities	(29)		(34)
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	$ (29)		$ (34)

[1] (a) The fair value of the related hedged portion of the Company's long-term debt, a level 2 liability, was $2.4 billion as of September 29, 2012 and $647 million as of December 31, 2011.