Annual report pursuant to Section 13 and 15(d)

SHAREOWNERS' EQUITY - Additional Information (Detail)

v2.4.1.9
SHAREOWNERS' EQUITY - Additional Information (Detail) (USD $)
1 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2013
Dec. 31, 2014
Dec. 31, 2014
Classes_of_Common_Stock
Dec. 31, 2013
Dec. 31, 2012
Feb. 14, 2013
Stockholders Equity Note [Line Items]            
Classes of common stock     2ups_ClassesOfCommonStockNumber      
Preferred stock, shares authorized   200,000,000us-gaap_PreferredStockSharesAuthorized 200,000,000us-gaap_PreferredStockSharesAuthorized      
Preferred stock, par value   $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare      
Preferred stock, issued   0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued      
Common stock purchases, Shares   3,700,000us-gaap_StockRepurchasedDuringPeriodShares 26,400,000us-gaap_StockRepurchasedDuringPeriodShares 43,200,000us-gaap_StockRepurchasedDuringPeriodShares 21,800,000us-gaap_StockRepurchasedDuringPeriodShares  
Document Fiscal Year Focus     2014      
Total of class A and class B common stock, repurchased, value   $ 400,000,000us-gaap_StockRepurchasedDuringPeriodValue $ 2,662,000,000us-gaap_StockRepurchasedDuringPeriodValue $ 3,846,000,000us-gaap_StockRepurchasedDuringPeriodValue $ 1,638,000,000us-gaap_StockRepurchasedDuringPeriodValue  
Share repurchase authorized amount           10,000,000,000.0us-gaap_StockRepurchaseProgramAuthorizedAmount1
Share repurchase authorization remaining   4,152,000,000us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 4,152,000,000us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1      
Parent's acquisition of remaining noncontrolling interest 70,000,000ups_BusinessCombinationStepAcquisitionPurchaseOfRemainingNoncontrollingInterest          
Cumulative percentage ownership following repurchase of noncontrolling interest 100.00%us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions          
Settled Options            
Stockholders Equity Note [Line Items]            
Common stock purchases, Shares   1,700,000us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_OptionMember
       
Accelerated Share Repurchases, Initial Price Paid Per Share   $ 100.01us-gaap_ForwardContractIndexedToIssuersEquityForwardRate
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_OptionMember
       
Option Premiums Received (Paid)     47,000,000ups_OptionPremiumsReceivedPaid
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_OptionMember
93,000,000ups_OptionPremiumsReceivedPaid
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_OptionMember
   
Class A Common Stock            
Stockholders Equity Note [Line Items]            
Votes per common share   10ups_VotesPerCommonShare
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassAMember
10ups_VotesPerCommonShare
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassAMember
     
Common stock, par value   $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassAMember
$ 0.01us-gaap_CommonStockParOrStatedValuePerShare
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassAMember
     
Common stock, shares authorized   4,600,000,000us-gaap_CommonStockSharesAuthorized
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassAMember
4,600,000,000us-gaap_CommonStockSharesAuthorized
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassAMember
     
Common stock purchases, Shares     5,000,000us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassAMember
8,000,000us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassAMember
9,000,000us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassAMember
 
Total of class A and class B common stock, repurchased, value     0us-gaap_StockRepurchasedDuringPeriodValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassAMember
1,000,000us-gaap_StockRepurchasedDuringPeriodValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassAMember
0us-gaap_StockRepurchasedDuringPeriodValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassAMember
 
Class B Common Stock            
Stockholders Equity Note [Line Items]            
Votes per common share   1ups_VotesPerCommonShare
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassBMember
1ups_VotesPerCommonShare
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassBMember
     
Common stock, par value   $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassBMember
$ 0.01us-gaap_CommonStockParOrStatedValuePerShare
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassBMember
     
Common stock, shares authorized   5,600,000,000us-gaap_CommonStockSharesAuthorized
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassBMember
5,600,000,000us-gaap_CommonStockSharesAuthorized
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassBMember
     
Common stock purchases, Shares     21,000,000us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassBMember
35,000,000us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassBMember
13,000,000us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassBMember
 
Total of class A and class B common stock, repurchased, value     $ 0us-gaap_StockRepurchasedDuringPeriodValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassBMember
$ 0us-gaap_StockRepurchasedDuringPeriodValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassBMember
$ 0us-gaap_StockRepurchasedDuringPeriodValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonClassBMember