Debt (Components of Notes Payable) (Details) (USD $) In Millions, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Debt Instrument [Line Items]
Principal amount	$ 739	$ 1,065
U.S. Commercial Paper [Member]
Debt Instrument [Line Items]
Principal amount	249	853
Effective interest rate	0.22%	0.26%
Bank Borrowings [Member]
Debt Instrument [Line Items]
Principal amount	53	53
Europe Commerical Paper [Member]
Debt Instrument [Line Items]
Principal amount	$ 437	$ 159
Effective interest rate	0.23%	0.18%

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant