Annual report pursuant to Section 13 and 15(d)

MULTIEMPLOYER EMPLOYEE BENEFIT PLANS - UPS's Participation in Multiemployer Plans (Detail)

v3.8.0.1
MULTIEMPLOYER EMPLOYEE BENEFIT PLANS - UPS's Participation in Multiemployer Plans (Detail)
$ in Millions
12 Months Ended
Dec. 31, 2017
USD ($)
Employees
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Sep. 30, 2012
Employees
Multiemployer Plans [Line Items]        
Number of employees under a national master agreement and various supplemental agreements with local unions affiliated with Teamster | Employees 280,000      
Number of pilots under a collective bargaining agreement with the Independent Pilots Association | Employees 2,700      
Pension and Other Postretirement Benefits Disclosure [Text Block] | Employees 3,100      
Represented by Teamsters [Member]        
Multiemployer Plans [Line Items]        
Number of employees under a national master agreement and various supplemental agreements with local unions affiliated with Teamster | Employees       10,200
Multiemployer Plans, Pension        
Multiemployer Plans [Line Items]        
Multiemployer Plans, Period Contributions, Significance of Contributions 5.00%      
Multiemployer pension plans, maximum term to forecast a funding deficiency in the orange zone 6 years      
UPS Contribution $ 1,870 $ 1,719 $ 1,623  
Multiemployer plans, present value of withdrawal liability 859 866    
Multi-employer plans, fair value of withdrawal liability $ 921 $ 861    
Multiemployer Plans, Pension | Alaska Teamster-Employer Pension Plan        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 92-6003463-024      
Pension Protection Act Zone Status Red Red    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 5 $ 5 5  
Surcharge Imposed No      
Multiemployer Plans, Pension | Automotive Industries Pension Plan        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 94-1133245-001      
Pension Protection Act Zone Status Red Red    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 5 $ 4 4  
Surcharge Imposed No      
Multiemployer Plans, Pension | Central Pennsylvania Teamsters Defined Benefit Plan        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 23-6262789-001      
Pension Protection Act Zone Status Green Green    
FIP/RP Status Pending/ Implemented No      
UPS Contribution $ 40 $ 38 36  
Surcharge Imposed No      
Multiemployer Plans, Pension | Eastern Shore Teamsters Pension Fund [Member]        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 52-0904953-001      
Pension Protection Act Zone Status Green Green    
FIP/RP Status Pending/ Implemented No      
UPS Contribution $ 5 $ 5 4  
Surcharge Imposed No      
Multiemployer Plans, Pension | Employer-Teamsters Local Nos. 175 & 505 Pension Trust Fund        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 55-6021850-001      
Pension Protection Act Zone Status Red Red    
UPS Contribution $ 12 $ 11 11  
Surcharge Imposed No      
Multiemployer Plans, Pension | Hagerstown Motor Carriers and Teamsters Pension Fund        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 52-6045424-001      
Pension Protection Act Zone Status Red Red    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 8 $ 7 7  
Surcharge Imposed No      
Multiemployer Plans, Pension | I.A.M. National Pension Fund / National Pension Plan        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 51-6031295-002      
Pension Protection Act Zone Status Green Green    
FIP/RP Status Pending/ Implemented No      
UPS Contribution $ 35 $ 31 29  
Surcharge Imposed No      
Multiemployer Plans, Pension | International Brotherhood of Teamsters Union Local No. 710 Pension Fund        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 36-2377656-001      
Pension Protection Act Zone Status Green Green    
FIP/RP Status Pending/ Implemented No      
UPS Contribution $ 118 $ 107 106  
Surcharge Imposed No      
Multiemployer Plans, Pension | Local 705, International Brotherhood of Teamsters Pension Plan        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 36-6492502-001      
Pension Protection Act Zone Status Yellow Red    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 93 $ 88 91  
Surcharge Imposed No      
Multiemployer Plans, Pension | Local 804 I.B.T. & Local 447 I.A.M.—UPS Multiemployer Retirement Plan        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 51-6117726-001      
Pension Protection Act Zone Status Yellow Red    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 110 $ 103 97  
Surcharge Imposed No      
Multiemployer Plans, Pension | Milwaukee Drivers Pension Trust Fund        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 39-6045229-001      
Pension Protection Act Zone Status Green Green    
FIP/RP Status Pending/ Implemented No      
UPS Contribution $ 38 $ 36 35  
Surcharge Imposed No      
Multiemployer Plans, Pension | New England Teamsters & Trucking Industry Pension Fund        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 04-6372430-001      
Pension Protection Act Zone Status Red Red    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 114 $ 114 110  
Surcharge Imposed No      
Multiemployer Plans, Pension | New York State Teamsters Conference Pension and Retirement Fund        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 16-6063585-074      
Pension Protection Act Zone Status Red Red    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 100 $ 91 86  
Surcharge Imposed No      
Multiemployer Plans, Pension | Teamster Pension Fund of Philadelphia and Vicinity        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 23-1511735-001      
Pension Protection Act Zone Status Yellow Yellow    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 60 $ 56 53  
Surcharge Imposed No      
Multiemployer Plans, Pension | Teamsters Joint Council No. 83 of Virginia Pension Fund        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 54-6097996-001      
Pension Protection Act Zone Status Green Yellow    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 64 $ 61 57  
Surcharge Imposed No      
Multiemployer Plans, Pension | Teamsters Local 639—Employers Pension Trust        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 53-0237142-001      
Pension Protection Act Zone Status Green Green    
FIP/RP Status Pending/ Implemented No      
UPS Contribution $ 55 $ 51 48  
Surcharge Imposed No      
Multiemployer Plans, Pension | Teamsters Negotiated Pension Plan        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 43-6196083-001      
Pension Protection Act Zone Status Green Green    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 32 $ 31 30  
Surcharge Imposed No      
Multiemployer Plans, Pension | Truck Drivers and Helpers Local Union No. 355 Retirement Pension Plan        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 52-6043608-001      
Pension Protection Act Zone Status Green Yellow    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 20 $ 19 17  
Surcharge Imposed No      
Multiemployer Plans, Pension | United Parcel Service, Inc.—Local 177, I.B.T. Multiemployer Retirement Plan        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 13-1426500-419      
Pension Protection Act Zone Status Red Red    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 88 $ 83 83  
Surcharge Imposed No      
Multiemployer Plans, Pension | Western Conference of Teamsters Pension Plan        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 91-6145047-001      
Pension Protection Act Zone Status Green Green    
FIP/RP Status Pending/ Implemented No      
UPS Contribution $ 772 $ 694 646  
Surcharge Imposed No      
Multiemployer Plans, Pension | Western Pennsylvania Teamsters and Employers Pension Fund        
Multiemployer Plans [Line Items]        
EIN / Pension Plan Number 25-6029946-001      
Pension Protection Act Zone Status Red Red    
FIP/RP Status Pending/ Implemented Implemented      
UPS Contribution $ 30 $ 28 26  
Surcharge Imposed No      
Multiemployer Plans, Pension | All Other Multiemployer Pension Plans        
Multiemployer Plans [Line Items]        
UPS Contribution $ 66 $ 56 $ 42  
Multiemployer Plans, Pension | Minimum        
Multiemployer Plans [Line Items]        
Multiemployer pension plans, percentage of plan funded 5.00% 5.00% 5.00%  
Multiemployer Plans, Pension | Green Zone, At Least 80% Funded [Member] | Minimum        
Multiemployer Plans [Line Items]        
Multiemployer pension plans, percentage of plan funded 80.00%      
Multiemployer Plans, Pension | Red Zone, Less than 65% Funded [Member] | Maximum        
Multiemployer Plans [Line Items]        
Multiemployer pension plans, percentage of plan funded 65.00%      
Multiemployer Plans, Pension | Otange Zone, Less than 80% and Have an Accumulated Funding Deficiency or Expect to Have a Deficiency Within Six Years [Member]        
Multiemployer Plans [Line Items]        
Multiemployer pension plans, percentage of plan funded 80.00%      
Multiemployer Plans, Pension | Yellow Zone, Less than 80% Funded [Member] | Maximum        
Multiemployer Plans [Line Items]        
Multiemployer pension plans, percentage of plan funded 80.00%