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    <Log type="Info">'Monetary' elements on report '4112 - Disclosure - Derivative Instruments, Hedging Activities and Fair Value (Details 3)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '4115 - Disclosure - Derivative Instruments, Hedging Activities and Fair Value (Details 6)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '4140 - Disclosure - Restructuring Programs (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">Process Flow-Through: 0010 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME</Log>
    <Log type="Info">Process Flow-Through: 0020 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Jun. 30, 2010'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2009'</Log>
    <Log type="Info">Process Flow-Through: 0030 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</Log>
    <Log type="Info">Process Flow-Through: 0045 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical)</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2011'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2010'</Log>
    <Log type="Info">Process Flow-Through: 0050 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</Log>
    <Log type="Info">Process Flow-Through: 0055 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical)</Log>
  </Logs>
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    <File>hsc-20110630.xsd</File>
    <File>hsc-20110630_cal.xml</File>
    <File>hsc-20110630_def.xml</File>
    <File>hsc-20110630_lab.xml</File>
    <File>hsc-20110630_pre.xml</File>
  </InputFiles>
  <SupplementalFiles />
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
