2.2.0.25falsefalse30203 - Disclosure - Basis of Presentation, Use of Estimates and Significant Accounting Policies (Tables)truefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $Duration_1_1_2010_To_12_31_2010http://www.sec.gov/CIK0000731766duration2010-01-01T00:00:002010-12-31T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0us-gaap_GeneralPoliciesAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalse3false0unh_ConsolidatedBalanceSheetsAmountsOfMedicarePartDProgramTextBlockunhfalsenadurationConsolidated Balance Sheets amounts of Medicare Part D program.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <div class="MetaData"> <table border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="50%"> </td> <td valign="bottom" width="11%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="11%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="11%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="11%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>December&nbsp;31,&nbsp;2010</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>December&nbsp;31,&nbsp;2009</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td></tr> <tr><td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"> <p style="margin-top: 0px; margin-bottom: 1px;"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>(in millions)</b></font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>CMS&nbsp;Subsidies&nbsp;(a)</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" nowrap="nowrap" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>Risk-Share</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>CMS&nbsp;Subsidies&nbsp;(a)</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" nowrap="nowrap" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>Risk-Share</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Other current receivables</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">0</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">0</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">271</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">0</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr><td valign="top"> <p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Other policy liabilities</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">475</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">265</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">0</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">268</font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr></table> <p style="border-bottom: #000000 0.5pt solid; line-height: 8px; margin-top: 0px; width: 10%; margin-bottom: 2px;"> </p> <table style="border-collapse: collapse;" class="MetaData" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td valign="top" width="4%" align="left"><font style="font-family: Times New Roman;" class="_mt" size="2">(a)</font></td> <td class="MetaData" valign="top" align="left"><font style="font-family: Times New Roman;" class="_mt" size="2">Includes the Catastrophic Reinsurance Subsidy and the Low-Income Member Cost Sharing Subsidy. </font></td></tr></table></div> </div>&nbsp; &nbsp;&nbsp; December&nbsp;31,&nbsp;2010 &nbsp; &nbsp;&nbsp; December&nbsp;31,&nbsp;2009 &nbsp; (infalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringConsolidated Balance Sheets amounts of Medicare Part D program.No authoritative reference available.falsefalse4false0unh_ScheduleOfPropertyEquipmentAndCapitalizedSoftwareTextBlockunhfalsenadurationSchedule Of Property Equipment And Capitalized Softwarefalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0" cellpadding="0" width="92%" align="center"> <tr><td width="47%"> </td> <td valign="bottom" width="4%"> </td> <td width="49%"> </td></tr> <tr><td valign="top"> <p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Furniture, fixtures and equipment</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><font class="_mt"><font style="font-family: Times New Roman;" class="_mt" size="2">3 </font></font>to&nbsp;<font class="_mt">7</font> years</font></td></tr> <tr><td valign="top"> <p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Buildings</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><font class="_mt"><font style="font-family: Times New Roman;" class="_mt" size="2">35</font></font>&nbsp;to&nbsp;<font class="_mt">40</font>&nbsp;years</font></td></tr> <tr><td valign="top"> <p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Leasehold improvements</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><font class="_mt"><font style="font-family: Times New Roman;" class="_mt" size="2">7</font></font>&nbsp;years&nbsp;or&nbsp;length&nbsp;of&nbsp;lease&nbsp;term,&nbsp;whichever&nbsp;is&nbsp;shorter</font></td></tr> <tr><td valign="top"> <p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Capitalized software</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><font class="_mt"><font style="font-family: Times New Roman;" class="_mt" size="2">3 </font></font>to&nbsp;<font class="_mt">5</font> years</font></td></tr></table> </div>Furniture, fixtures and equipment &nbsp;&nbsp; 3 to&nbsp;7 years Buildings &nbsp;&nbsp; 35&nbsp;to&nbsp;40&nbsp;years LeaseholdfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule Of Property Equipment And Capitalized SoftwareNo authoritative reference available.falsefalse13Basis of Presentation, Use of Estimates and Significant Accounting Policies (Tables)UnKnownUnKnownUnKnownUnKnownfalsetrue