Debt and Credit Agreements (Debt Issuance) (Details) (Notes Payable [Member], USD $) In Millions, unless otherwise specified	Dec. 30, 2011
4.75% Note Due 2042 [Member]
Debt Instrument [Line Items]
Face amount of debt issued	$ 600
Notes issued, interest rate	4.75%
4.25% Note Due 2021 [Member]
Debt Instrument [Line Items]
Face amount of debt issued	350
Notes issued, interest rate	4.25%
5.50% Note Due 2041 [Member]
Debt Instrument [Line Items]
Face amount of debt issued	$ 250
Notes issued, interest rate	5.50%

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant