Derivative Instruments and Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (USD $) In Millions	Oct. 01, 2011	Jan. 01, 2011
Assets	$ 32	$ 104
Liabilities	(64)	(66)
Assets	0	0
Foreign Currency Exchange Contracts [Member] | Other Prepaid Assets [Member]
Assets	14	7
Foreign Currency Exchange Contracts [Member] | Other Prepaid Assets [Member] | Level 1 [Member]
Assets	0	0
Foreign Currency Exchange Contracts [Member] | Other Prepaid Assets [Member] | Level 2 [Member]
Assets	14	7
Foreign Currency Exchange Contracts [Member] | Other Current Liabilities [Member]
Liabilities	(15)	(27)
Foreign Currency Exchange Contracts [Member] | Other Current Liabilities [Member] | Level 1 [Member]
Liabilities	0	0
Foreign Currency Exchange Contracts [Member] | Other Current Liabilities [Member] | Level 2 [Member]
Liabilities	(15)	(27)
Interest Rate Contracts [Member] | Other Prepaid Assets [Member]
Assets	0	5
Interest Rate Contracts [Member] | Other Prepaid Assets [Member] | Level 1 [Member]
Assets	0	0
Interest Rate Contracts [Member] | Other Prepaid Assets [Member] | Level 2 [Member]
Assets	0	5
Interest Rate Contracts [Member] | Other Current Liabilities [Member]
Liabilities	0	0
Interest Rate Contracts [Member] | Other Current Liabilities [Member] | Level 1 [Member]
Liabilities	0	0
Interest Rate Contracts [Member] | Other Current Liabilities [Member] | Level 2 [Member]
Liabilities	0	0
Interest Rate Contracts [Member] | Other Assets [Member]
Assets	16	69
Assets	0	0
Interest Rate Contracts [Member] | Other Assets [Member] | Level 1 [Member]
Assets	0	0
Assets	0	0
Interest Rate Contracts [Member] | Other Assets [Member] | Level 2 [Member]
Assets	16	69
Assets	0	0
Interest Rate Contracts [Member] | Other Liabilities [Member]
Liabilities	0	0
Interest Rate Contracts [Member] | Other Liabilities [Member] | Level 1 [Member]
Liabilities	0	0
Interest Rate Contracts [Member] | Other Liabilities [Member] | Level 2 [Member]
Liabilities	0	0
Commodity Contracts [Member] | Other Prepaid Assets [Member]
Assets	2	23
Commodity Contracts [Member] | Other Prepaid Assets [Member] | Level 1 [Member]
Assets	2	23
Commodity Contracts [Member] | Other Prepaid Assets [Member] | Level 2 [Member]
Assets	0	0
Commodity Contracts [Member] | Other Current Liabilities [Member]
Liabilities	(22)	(10)
Commodity Contracts [Member] | Other Current Liabilities [Member] | Level 1 [Member]
Liabilities	(12)	0
Commodity Contracts [Member] | Other Current Liabilities [Member] | Level 2 [Member]
Liabilities	(10)	(10)
Commodity Contracts [Member] | Other Assets [Member]
Assets	0	0
Commodity Contracts [Member] | Other Assets [Member] | Level 1 [Member]
Assets	0	0
Commodity Contracts [Member] | Other Assets [Member] | Level 2 [Member]
Assets	0	0
Commodity Contracts [Member] | Other Liabilities [Member]
Liabilities	(27)	(29)
Commodity Contracts [Member] | Other Liabilities [Member] | Level 1 [Member]
Liabilities	0	0
Commodity Contracts [Member] | Other Liabilities [Member] | Level 2 [Member]
Liabilities	(27)	(29)
Level 1 [Member]
Assets	2	23
Liabilities	(12)	0
Assets	0	0
Level 2 [Member]
Assets	30	81
Liabilities	(52)	(66)
Assets	$ 0	$ 0