Annual report pursuant to Section 13 and 15(d)

MULTIEMPLOYER EMPLOYEE BENEFIT PLANS - Multi-Employer Health and Welfare Plans (Detail)

v3.3.1.900
MULTIEMPLOYER EMPLOYEE BENEFIT PLANS - Multi-Employer Health and Welfare Plans (Detail) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2015
Jun. 30, 2015
Dec. 31, 2014
Jun. 30, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Multiemployer Plans [Line Items]              
Document Fiscal Year Focus         2015    
DefinedBenefitPlanRecognizedNetGainLossDuetoSettlementsandCurtailmentsAfterTax   $ 665          
Settlement payments to fund for assumption of postretirement benefit obligation $ 2,271       $ 2,271    
CashTaxBenefitDueToSettlementofBenefitObligation         854    
Change In Post-Retirement Benefit and AOCI 13       13    
Health and Welfare Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         3,486 $ 2,352 $ 1,222
Health and Welfare Fund | Bay Area Delivery Drivers              
Multiemployer Plans [Line Items]              
UPS Contributions         34 32 29
Health and Welfare Fund | Central Pennsylvania Teamsters Health & Pension Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         23 21 20
Health and Welfare Fund | Central States, South East & South West Areas Health and Welfare Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         2,081 1,306 505
Health and Welfare Fund | Teamsters Western Region & Local One Seventy Seven Health Care Plan [Member]              
Multiemployer Plans [Line Items]              
UPS Contributions         515 239 0
Health and Welfare Fund | Health & Welfare Insurance Fund Teamsters Local Six Fifty Three [Member]              
Multiemployer Plans [Line Items]              
UPS Contributions         6 5 0
Health and Welfare Fund | Delta Health Systems—East Bay Drayage Drivers              
Multiemployer Plans [Line Items]              
UPS Contributions         27 24 24
Health and Welfare Fund | Employer—Teamster Local Nos. 175 & 505              
Multiemployer Plans [Line Items]              
UPS Contributions         10 9 9
Health and Welfare Fund | Joint Council 83 Health & Welfare Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         28 26 24
Health and Welfare Fund | Local 191 Teamsters Health Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         11 11 9
Health and Welfare Fund | Local 401 Teamsters Health & Welfare Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         7 7 6
Health and Welfare Fund | Local 804 Welfare Trust Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         75 70 67
Health and Welfare Fund | Milwaukee Drivers Pension Trust Fund—Milwaukee Drivers Health and Welfare Trust Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         34 32 31
Health and Welfare Fund | Montana Teamster Employers Trust              
Multiemployer Plans [Line Items]              
UPS Contributions         7 7 6
Health and Welfare Fund | New York State Teamsters Health & Hospital Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         53 51 46
Health and Welfare Fund | North Coast Benefit Trust              
Multiemployer Plans [Line Items]              
UPS Contributions         8 9 8
Health and Welfare Fund | Northern California General Teamsters (DELTA)              
Multiemployer Plans [Line Items]              
UPS Contributions         108 96 84
Health and Welfare Fund | Northern New England Benefit Trust              
Multiemployer Plans [Line Items]              
UPS Contributions         42 39 35
Health and Welfare Fund | Oregon / Teamster Employers Trust              
Multiemployer Plans [Line Items]              
UPS Contributions         31 29 28
Health and Welfare Fund | Teamsters 170 Health & Welfare Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         15 15 12
Health and Welfare Fund | Teamsters Benefit Trust              
Multiemployer Plans [Line Items]              
UPS Contributions         36 40 38
Health and Welfare Fund | Teamsters Local 251 Health & Insurance Plan              
Multiemployer Plans [Line Items]              
UPS Contributions         13 12 11
Health and Welfare Fund | Teamsters Local 404 Health & Insurance Plan              
Multiemployer Plans [Line Items]              
UPS Contributions         7 7 6
Health and Welfare Fund | Teamsters Local 638 Health Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         39 35 32
Health and Welfare Fund | Teamsters Local 639—Employers Health & Pension Trust Funds              
Multiemployer Plans [Line Items]              
UPS Contributions         26 26 24
Health and Welfare Fund | Teamsters Local 671 Health Services & Insurance Plan              
Multiemployer Plans [Line Items]              
UPS Contributions         15 14 13
Health and Welfare Fund | Teamsters Union 25 Health Services & Insurance Plan              
Multiemployer Plans [Line Items]              
UPS Contributions         46 44 37
Health and Welfare Fund | Teamsters Union Local 677 Health Services & Insurance Plan              
Multiemployer Plans [Line Items]              
UPS Contributions         10 9 8
Health and Welfare Fund | Truck Drivers and Helpers Local 355 Baltimore Area Health & Welfare Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         15 15 13
Health and Welfare Fund | Utah-Idaho Teamsters Security Fund              
Multiemployer Plans [Line Items]              
UPS Contributions         25 22 18
Health and Welfare Fund | Washington Teamsters Welfare Trust              
Multiemployer Plans [Line Items]              
UPS Contributions         44 36 35
Health and Welfare Fund | All Other Multiemployer Health and Welfare Plans              
Multiemployer Plans [Line Items]              
UPS Contributions         $ 95 $ 64 $ 44
National Master Agreement (NMA) [Domain]              
Multiemployer Plans [Line Items]              
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments   1,066   $ 1,066      
Non-National Master Agreement (Non-NMA) [Domain]              
Multiemployer Plans [Line Items]              
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments 36   $ 36        
DefinedBenefitPlanRecognizedNetGainLossDuetoSettlementsandCurtailmentsAfterTax $ 22            
remeasurement of postretirement obligation [Member]              
Multiemployer Plans [Line Items]              
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments   746          
partial plan curtailment [Member]              
Multiemployer Plans [Line Items]              
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments   112          
defined benefit plan settlement losses [Member] | National Master Agreement (NMA) [Domain]              
Multiemployer Plans [Line Items]              
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments   $ 208