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    <Log type="Info">'Monetary' elements on report '00032 - Disclosure - Note 1: Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '00037 - Disclosure - Note 6: Employee Benefit Plans (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '00039 - Disclosure - Note 8: Financial Instruments (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '00041 - Disclosure - Note 10: Shareowners' Equity and Noncontrolling Interest (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">Process Flow-Through: 00002 - Statement - Condensed Consolidated Statement of Operations</Log>
    <Log type="Info">Process Flow-Through: 00003 - Statement - Condensed Consolidated Balance Sheet</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Jun. 30, 2011'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Sep. 30, 2010'</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: 00004 - Statement - Condensed Consolidated Statement of Cash Flows</Log>
    <Log type="Info">	Process Flow-Through: Removing column '9 Months Ended
Sep. 30, 2011
United States Pension Plans Of US Entity Defined Benefit [Member]'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '9 Months Ended
Sep. 30, 2010
United States Pension Plans Of US Entity Defined Benefit [Member]'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '9 Months Ended
Sep. 30, 2011
United States Pension Plans Of US Entity Defined Benefit [Member]
Common Stock [Member]'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '9 Months Ended
Sep. 30, 2010
United States Pension Plans Of US Entity Defined Benefit [Member]
Common Stock [Member]'</Log>
  </Logs>
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    <File>utx-20110930.xsd</File>
    <File>utx-20110930_cal.xml</File>
    <File>utx-20110930_def.xml</File>
    <File>utx-20110930_lab.xml</File>
    <File>utx-20110930_pre.xml</File>
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  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
