Derivative Instruments and Fair Value Measurements (Total Notional Amounts of the Company's Derivative Instruments) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Jan. 01, 2011
Notional amount of derivatives	$ 2,040	$ 3,354
Foreign Currency Exchange Contracts [Member]
Notional amount of derivatives	1,265	1,075
Interest Rate Contracts [Member]
Notional amount of derivatives	600	1,900
Commodity Contracts [Member]
Notional amount of derivatives	$ 175	$ 379

Aggregate notional amount of all derivatives. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

Name:	us-gaap_NotionalAmountOfDerivatives
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant