2.2.0.7 false Commercial Paper and Long-Term Debt (Policy) 20702 - Disclosure - Commercial Paper and Long-Term Debt (Policy) true false false false 1 USD false false Unit13 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit14 Standard http://www.xbrl.org/2003/instance pure xbrli 0 Unit1 Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 0 unh_CommercialPaperAndLongTermDebtAbstract unh false na duration Commercial Paper And Long-Term Debt [Abstract] false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string Commercial Paper And Long-Term Debt [Abstract] false 3 1 unh_InterestRateSwapContractPolicyTextBlock unh false na duration Interest rate swap contract policy text block false false false false false false false false false false false terselabel false 1 false false false false 0 0 <div> <p style="margin-top: 18px; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2"><b><i>Interest Rate Swap Contracts </i></b></font></p> <p style="margin-top: 6px; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">During 2010, the Company entered into interest rate swap contracts with creditworthy bank counterparties to convert a portion of its interest rate exposure from fixed rates to floating rates to more closely align interest expense with interest income received on its cash equivalent and investment balances. The floating rates are benchmarked to LIBOR. The swaps are designated as fair value hedges of fixed-rate debt issues maturing between March 2011 and March 2016. Since the specific terms and notional amounts of the swaps match those of the debt being hedged, they were assumed to be highly effective hedges and all changes in fair value of the swaps were recorded on the Condensed Consolidated Balance Sheets with no net impact recorded in the Condensed Consolidated Statements of Operations. </font></p> </div> Interest Rate Swap Contracts During 2010, the Company entered into interest rate swap contracts with creditworthy bank counterparties to convert a portion of false false false us-types:textBlockItemType textblock Interest rate swap contract policy text block No authoritative reference available. false 4 1 us-gaap_ScheduleOfSubsequentEventsTextBlock us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 false false false false 0 0 <div> <font style="font-family: Times New Roman;" class="_mt" size="2"> </font> <div> <p style="margin-top: 18px; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2"><b><i>Subsequent Event </i></b></font></p> <p style="margin-top: 6px; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">In&nbsp;October 2010,&nbsp;the Company&nbsp;issued $750 million&nbsp;in&nbsp;senior unsecured notes under&nbsp;its February 2008&nbsp;S-3 shelf&nbsp;registration&nbsp;statement. The issuance included $450 million of 3.875% fixed-rate notes due October 2020 and $300 million of 5.700% fixed-rate notes due October 2040. Concurrent with the issuance, the Company entered into interest rate swap contracts to convert the $450 million of 3.875% fixed-rate notes to floating rates. </font></p></div> </div> Subsequent Event In&nbsp;October 2010,&nbsp;the Company&nbsp;issued $750 million&nbsp;in&nbsp;senior unsecured notes under&nbsp;its February 2008&nbsp;S-3 false false false us-types:textBlockItemType textblock Describes disclosed significant events or transactions that occurred after the balance sheet date, but before the issuance of the financial statements. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, losses resulting from fire or flood, losses on receivables, significant realized and unrealized gains and losses that result from changes in quoted market prices of securities, declines in market prices of inventory, changes in authorized or issued debt (SEC), significant foreign exchange rate changes, substantial loans to insiders or affiliates, significant long-term investments, and substantial dividends not in the ordinary course of business. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 11 false 1 3 false UnKnown UnKnown UnKnown false true