2.2.0.25truefalse1064 - Disclosure - Fair Value Measurement of Plan Assets Using Significant Unobservable Inputs (Level 3) (Detail)truefalseIn Millionsfalse1falsefalseUSDfalsefalse12/31/2010
USD ($)
USD ($) / shares
$eol_PE10216---1010-K0013_STD_0_20101231_0http://www.sec.gov/CIK0001090727instant2010-12-31T00:00:000001-01-01T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170iso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0sharesStandardhttp://www.xbrl.org/2003/instanceshares0PersonStandardhttp://www.ups.com/20101231Personups0CreditFacilityStandardhttp://www.ups.com/20101231CreditFacilityups0pureStandardhttp://www.xbrl.org/20
03/instancepure0USDUSD$2falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Fair Value, Inputs, Level 3
1/1/2010 - 12/31/2010
USD ($)
$eol_PE10216---1010-K0013_STD_365_20101231_0_402206x403828http://www.sec.gov/CIK0001090727duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseFair Value, Inputs, Level 3us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Fair Value, Inputs, Level 3
{us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis} : Real Estate
1/1/2010 - 12/31/2010
USD ($)
$eol_PE10216---1010-K0013_STD_365_20101231_0_402164x409914_402206x403828http://www.sec.gov/CIK0001090727duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseFair Value, Inputs, Level 3us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseReal Estateus-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RealEstateMemberus-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Fair Value, Inputs, Level 3
{us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis} : Private Equity
1/1/2010 - 12/31/2010
USD ($)
$eol_PE10216---1010-K0013_STD_365_20101231_0_402164x409258_402206x403828http://www.sec.gov/CIK0001090727duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseFair Value, Inputs, Level 3us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalsePrivate Equityus-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_PrivateEquityFundsMemberus-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$5falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Fair Value, Inputs, Level 3
{us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis} : Corporate Bonds
1/1/2010 - 12/31/2010
USD ($)
$eol_PE10216---1010-K0013_STD_365_20101231_0_402164x401356_402206x403828http://www.sec.gov/CIK0001090727duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseFair Value, Inputs, Level 3us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseCorporate Bondsus-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CorporateBondSecuritiesMemberus-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$6falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Fair Value, Inputs, Level 3
{us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis} : Hedge Funds
1/1/2010 - 12/31/2010
USD ($)
$eol_PE10216---1010-K0013_STD_365_20101231_0_402164x404937_402206x403828http://www.sec.gov/CIK0001090727duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseFair Value, Inputs, Level 3us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseHedge Fundsus-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_HedgeFundsMemberus-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2true0us-gaap_DefinedBenefitPlanDisclosureLineItemsus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:stringItemTypestringLine items represent
financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.falsefalse3false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsetruef
alsefalseperiodstartlabel1truefalsefalse2032500000020325falsetruefalsefalsefalse2truefalsefalse31800000003180falsetruefalsetruefalse3truefalsefalse550000000550falsetruefalsetruefalse4truefalsefalse11450000001145false<
ShowCurrencySymbol>truefalsetruefalse5truefalsefalse201000000201falsetruefalsetruefalse6truefalsefalse12840000001284falsetruefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse4true0us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefal
se00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:stringItemTypestringdup_1_The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph i
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
falsefalse5false0us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsStillHeldus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse401000000401falsefalsefalsetruefalse3truefalsefalse100000000100falsefalsefalsetruefalse4truefalsefalse177000000177falsefalsefalsetruefalse5truefalse<
/IsRatio>false-5000000-5falsefalsefalsetruefalse6truefalsefalse129000000129falsefalsefalsetruefalseMo
netaryxbrli:monetaryItemTypemonetaryActual return on plan assets, separately identifying the amount related to assets still held at the reporting date.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
falsefalse6false0us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriodus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse2400000024falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4truefalsefalse10000001falsefalsefalsetruefalse5truefalsefalse1300000013falsefalsefalsetruefalse6truefalsefalse1000000010falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryActual return on plan assets, separately identifying the amount related to assets sold during the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
falsefalse7false0ups_DefinedBenefitPlanAssetsWithUnobservableInputsPurchasesupsfalsedebitdurationDefined Benefit Plan Assets With Unobservable Inputs Purchasesfalsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse10530000001053falsefalsefalsetruefalse3truefalsefalse152000000152falsefalsefalsetruefalse4truefalsefalse149000000149falsefalsefalsetruefalse5truefalsefalse4100000041falsefalsefalsetruefalse6truefalsefalse711000000711falsefalsefalsetruefalse
Monetaryxbrli:monetaryItemTypemonetaryDefined Benefit Plan Assets With Unobservable Inputs PurchasesNo authoritative reference available.falsefalse8false0us-gaap_DefinedBenefitPlanDivestituresPlanAssetsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse-344000000-344falsefalsefalsetruefalse3truefalsefalse-13000000-13falsefalsefalsetruefalse4truefalsefalse-163000000-163falsefalsefalsetruefalse5truefalsefalse-57000000-57falsefalsefalsetruefalse6truefalsefalse-111000000-111<
NonNumericTextHeader />falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of decrease in the plan assets attributed to the sale, liquidation, spin-off or other divestiture of a corporate division or subsidiary.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
falsefalse9false0us-gaap_DefinedBenefitPlanSettlementsPlanAssetsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsenegated1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00 falsefalsefalsetruefalse3falsefalsefalse00 falsefalsefalsetruefalse4falsefalsefalse00 falsefalsefalsetruefalse5falsefalsefalse00 falsefalsefalsetruefalse6falsefalsefalse00 falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount that relates to an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 88
-Paragraph 3
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
falsefalse10false0us-gaap_DefinedBenefitPlanTransfersBetweenMeasurementLevelsus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00 falsefalsefalsetruefalse3falsefalsefalse00 falsefalsefalsetruefalse4falsefalsefalse00 falsefalsefalsetruefalse5falsefalsefalse00 falsefalsefalsetruefalse6falsefalsefalse00 falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryTransfers in and out of Level 3. For example, transfers due to changes in the observability of significant inputs.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(iii)
falsefalse11false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsetruefalseperiodendlabel1truefalsefalse2032500000020325falsetruefalsefalsefalse2truefalsefalse43140000004314falsetruefalsetruefalse3tr
uefalsefalse789000000789falsetruefalsetruefalse4truefalsefalse13090000001309falsetruefalsetruefalse5truefalsefalse193000000193falsetruefalsetruefalse6truefalsefalse20230000002023falsetruefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse610Fair Value Measurement of Plan Assets Using Significant Unobservable Inputs (Level 3) (Detail) (USD $)MillionsUnKnownUnKnownUnKnownfalsetrue
