Fair Values and Fair Value Measurements of Financial Instruments (Details) (USD $) In Millions	3 Months Ended
Oct. 01, 2011	Oct. 01, 2011 Carrying Value [Member]	Jan. 01, 2011 Carrying Value [Member]	Oct. 01, 2011 Fair Value [Member]	Jan. 01, 2011 Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed rate, long-term debt		$ 490	$ 540	$ 528	$ 577
Valuation Technique	Level 2 - Market Approach

This element represents the inputs and valuation technique(s) used to measure fair value and a discussion of changes in valuation techniques and related inputs, if any, during the period.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph e

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration