2.2.0.25falsefalse0201 - Disclosure - Generaltruefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $Jan-01-2010_Dec-31-2010http://www.sec.gov/CIK0001317630duration2010-01-01T00:00:002010-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0us-gaap_GeneralPoliciesAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseGeneral [Abstract]3false0us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00  <div align="left" style="margin-left: 0%">  <div align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> <b><font style="font-family: Arial, Helvetica"> </font></b> </div> <div style="margin-top: 0pt; font-size: 1pt"></div> <div align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> <b><font style="font-family: Arial, Helvetica"> </font></b> </div> <div style="margin-top: 12pt; font-size: 1pt">  </div> <table width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent; text-align: left"> <tr> <td width="3%"></td> <td width="97%"></td> </tr> <tr valign="top"> <td> <b><font style="font-family: Arial, Helvetica">1.  </font></b> </td> <td> <b><font style="font-family: Arial, Helvetica">GENERAL</font></b> </td> </tr> </table> <div style="margin-top: 6pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> ITC Holdings Corp. (“ITC Holdings,” and together with its subsidiaries, “we,” “our” or “us”) was incorporated for the purpose of acquiring International Transmission Company (“ITCTransmission”) from DTE Energy Company (“DTE Energy”). Following the approval of the transaction by the Federal Energy Regulatory Commission (the “FERC”), ITC Holdings acquired the outstanding ownership interests of ITCTransmission on February 28, 2003. </div> <div style="margin-top: 6pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> On October 10, 2006, ITC Holdings acquired an indirect ownership (through various intermediate entities) of all the partnership interests in Michigan Transco Holdings, Limited Partnership (“MTH”), the sole member of Michigan Electric Transmission Company, LLC (“METC”). </div> <div style="margin-top: 6pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> On December 20, 2007, ITC Midwest LLC (“ITC Midwest”), a wholly-owned subsidiary of ITC Holdings, completed the acquisition of the transmission assets of Interstate Power and Light Company (“IP&L”), an Alliant Energy Corporation subsidiary. </div> <div style="margin-top: 6pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> On August 18, 2009, ITC Great Plains, LLC (“ITC Great Plains”), a wholly-owned subsidiary of ITC Grid Development, LLC (“ITC Grid Development”), which is a wholly-owned subsidiary of ITC Holdings, completed the acquisition of two electric transmission substations from Mid-Kansas Electric Company LLC (“Mid-Kansas”) and became an electric utility with rates regulated by FERC. </div> <div style="margin-top: 6pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> Through ITCTransmission, METC, ITC Midwest and ITC Great Plains (together, our “Regulated Operating Subsidiaries”), we are engaged in the transmission of electricity in the United States. We operate high-voltage systems in Michigan’s Lower Peninsula and portions of Iowa, Minnesota, Illinois, Missouri and Kansas that transmit electricity from generating stations to local distribution facilities connected to our systems. Our business strategy is to operate, maintain and invest in transmission infrastructure in order to enhance system integrity and reliability, to reduce transmission constraints and to allow new generating resources to interconnect to our transmission systems. We also are pursuing development projects not within our existing systems, which are intended to improve overall grid reliability, lower electricity congestion and facilitate interconnections of new generating resources, as well as to enhance competitive wholesale electricity markets. </div> <div style="margin-top: 6pt; font-size: 1pt">  </div> <div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent"> Our Regulated Operating Subsidiaries are independent electric transmission utilities, with rates regulated by the FERC and established on a <font style="white-space: nowrap">cost-of-service</font> model. ITCTransmission’s service area is located in southeastern Michigan and METC’s service area covers approximately two-thirds of Michigan’s Lower Peninsula and is contiguous with ITCTransmission’s service area. ITC Midwest’s service area is located in portions of Iowa, Minnesota, Illinois and Missouri and ITC Great Plains currently owns assets located in Kansas. The Midwest Independent Transmission System Operator, Inc. (“MISO”) bills and collects revenues from ITCTransmission, METC, and ITC Midwest (“MISO Regulated Operating Subsidiaries”) customers. Southwest Power Pool, Inc. (“SPP”) bills and collects revenue from ITC Great Plains customers. </div> </div>  <!-- Begin Block Tagged NotefalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescription containing the entire organization, consolidation and basis of presentation of financial statements disclosure. 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