United Parcel Service, Inc. Annual report pursuant to Section 13 and 15(d)

SEGMENT AND GEOGRAPHIC INFORMATION - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2012 Segments	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting Information [Line Items]
Number of operating segments	3
Description of consolidated revenue	No countries outside of the United States, nor any individual customers, provided 10% or more of consolidated revenue.	No countries outside of the United States, nor any individual customers, provided 10% or more of consolidated revenue.	No countries outside of the United States, nor any individual customers, provided 10% or more of consolidated revenue.
International Package \| Minimum
Segment Reporting Information [Line Items]
Number of countries and territories in which service is rendered	220
Supply Chain & Freight \| Minimum
Segment Reporting Information [Line Items]
Number of countries and territories in which service is rendered	195