Weighted Average Assumptions Used in the Measurement of Benefit Obligations (Detail) (North America)	Dec. 28, 2013
Pension Benefits
Weighted Average Discount Rate [Line Items]
Discount rate	4.84%
Other Benefits, United States
Weighted Average Discount Rate [Line Items]
Discount rate	4.00%
Other Benefits, Canada
Weighted Average Discount Rate [Line Items]
Discount rate	4.80%

The interest rate used to adjust for the time value of money for the plan.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (k)(1)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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