<?xml version="1.0" encoding="utf-8"?>
<FilingSummary xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Version>1.0.0.3</Version>
  <ReportType />
  <MyReports>
    <Report>
      <IsDefault>true</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>100000 - Document - Document Information</LongName>
      <ShortName>Document Information</ShortName>
      <XmlFileName>R1.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>100001 - Document - Entity Information</LongName>
      <ShortName>Entity Information</ShortName>
      <XmlFileName>R2.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>104010 - Statement - Consolidated Balance Sheets</LongName>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <XmlFileName>R3.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>104020 - Statement - Consolidated Balance Sheets (Parenthetical)</LongName>
      <ShortName>Consolidated Balance Sheets (Parenthetical)</ShortName>
      <XmlFileName>R4.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>124110 - Statement - Consolidated Statements of Income</LongName>
      <ShortName>Consolidated Statements of Income</ShortName>
      <XmlFileName>R5.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>124120 - Statement - Consolidated Statements of Income (Parenthetical)</LongName>
      <ShortName>Consolidated Statements of Income (Parenthetical)</ShortName>
      <XmlFileName>R6.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>148610 - Statement - Consolidated Statements of Stockholders' Equity</LongName>
      <ShortName>Consolidated Statements of Stockholders' Equity</ShortName>
      <XmlFileName>R7.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>152210 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <XmlFileName>R8.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>201000 - Disclosure - Background and Basis of Presentation</LongName>
      <ShortName>Background and Basis of Presentation</ShortName>
      <XmlFileName>R9.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>202000 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <XmlFileName>R10.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>203000 - Disclosure - Acquisitions of Businesses</LongName>
      <ShortName>Acquisitions of Businesses</ShortName>
      <XmlFileName>R11.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>204000 - Disclosure - Fair Value Disclosures</LongName>
      <ShortName>Fair Value Disclosures</ShortName>
      <XmlFileName>R12.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>205000 - Disclosure - Property and Equipment</LongName>
      <ShortName>Property and Equipment</ShortName>
      <XmlFileName>R13.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>206000 - Disclosure - Leases</LongName>
      <ShortName>Leases</ShortName>
      <XmlFileName>R14.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>207000 - Disclosure - Goodwill and Intangible Assets</LongName>
      <ShortName>Goodwill and Intangible Assets</ShortName>
      <XmlFileName>R15.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>208000 - Disclosure - Debt</LongName>
      <ShortName>Debt</ShortName>
      <XmlFileName>R16.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>209000 - Disclosure - Pension and Other Postretirement Benefits</LongName>
      <ShortName>Pension and Other Postretirement Benefits</ShortName>
      <XmlFileName>R17.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>210000 - Disclosure - Taxes on Income</LongName>
      <ShortName>Taxes on Income</ShortName>
      <XmlFileName>R18.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>211000 - Disclosure - Stock-Based Compensation</LongName>
      <ShortName>Stock-Based Compensation</ShortName>
      <XmlFileName>R19.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>212000 - Disclosure - Share Repurchase Programs</LongName>
      <ShortName>Share Repurchase Programs</ShortName>
      <XmlFileName>R20.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>213100 - Disclosure - Segment and Geographic Data</LongName>
      <ShortName>Segment and Geographic Data</ShortName>
      <XmlFileName>R21.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>214000 - Disclosure - Commitments and Contingencies</LongName>
      <ShortName>Commitments and Contingencies</ShortName>
      <XmlFileName>R22.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>215000 - Disclosure - Schedule II - Valuation and Qualifying Accounts</LongName>
      <ShortName>Schedule II - Valuation and Qualifying Accounts</ShortName>
      <XmlFileName>R23.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Book</ReportType>
      <LongName>All Reports</LongName>
      <ShortName>All Reports</ShortName>
      <XmlFileName />
    </Report>
  </MyReports>
  <EntityCount>1</EntityCount>
  <ContextCount>44</ContextCount>
  <SegmentCount>5</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <UnitCount>3</UnitCount>
  <ElementCount>143</ElementCount>
  <FootnotesReported>true</FootnotesReported>
  <TuplesReported>false</TuplesReported>
  <ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_26Dec2009_Retained_Earnings__Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_26Dec2009_Common_Stock__Member</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_27Dec2008_Common_Stock__Member2</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_29Dec2007_Additional_Paid_in_Capital__Member</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_30Dec2006_Common_Stock__Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_27Dec20082</ContextName>
      <ElementCount>66</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_27Dec2008_Retained_Earnings__Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_26Dec2009_Accumulated_Other_Comprehensive_Income__Member2</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_29Dec2007_Retained_Earnings__Member</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_27Dec2008_Treasury_Stock__Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_29Dec2007_Common_Stock__Member2</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_29Dec2007_Common_Stock__Member</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_30Dec2006_Retained_Earnings__Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_26Dec2009_Common_Stock__Member2</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_29Dec2007_Accumulated_Other_Comprehensive_Income__Loss___Member</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_26Dec2009_Retained_Earnings__Member2</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_26Dec2009_Accumulated_Other_Comprehensive_Income__Member</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_29Dec2007</ContextName>
      <ElementCount>64</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_27Dec2008_Additional_Paid_in_Capital__Member2</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_26Dec2009_Treasury_Stock__Member2</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_27Dec2008_Common_Stock__Member</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_29Dec2007_Treasury_Stock__Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_26Dec2009_Treasury_Stock__Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_27Dec2008_Accumulated_Other_Comprehensive_Income__Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_26Dec2009_Additional_Paid_in_Capital__Member</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_30Dec2006_Additional_Paid_in_Capital__Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_26Dec2009_Additional_Paid_in_Capital__Member2</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_29Dec2007_Additional_Paid_in_Capital__Member2</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_29Dec2007_Accumulated_Other_Comprehensive_Income__Loss___Member2</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_29Dec2007_Retained_Earnings__Member2</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_27June2009</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_27Dec2008_Retained_Earnings__Member2</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_30Dec2006</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_30Dec2006_Treasury_Stock__Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_29Dec20072</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_29Dec2007_Treasury_Stock__Member2</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_27Dec2008_Treasury_Stock__Member2</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_27Dec2008</ContextName>
      <ElementCount>40</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalancesAsOf_17February2010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_27Dec2008_Accumulated_Other_Comprehensive_Income__Loss___Member</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_30Dec2006_Accumulated_Other_Comprehensive_Income__Loss___Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_27Dec2008_Additional_Paid_in_Capital__Member</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_26Dec2009</ContextName>
      <ElementCount>91</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_26Dec20092</ContextName>
      <ElementCount>40</ElementCount>
    </ContextSummary>
  </ContextSummary>
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
