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

RESTRUCTURING COSTS AND BUSINESS DISPOSITIONS - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended		12 Months Ended			3 Months Ended
	Apr. 30, 2010 Restructuring Charges Employees Location	Jan. 31, 2010 Restructuring Charges Location	Dec. 31, 2010 Supply Chain & Freight	Dec. 31, 2010 Supply Chain & Freight Specialized transportation and express freight business	Dec. 31, 2010 Supply Chain & Freight UPS Logistics Technologies Inc	Mar. 31, 2010 U.S. Domestic Package
Restructuring Cost and Reserve [Line items]
Guarantee period for certain employee benefit payments (in years)			2 years
Gain (Loss) on sale of business, pre-tax				$ (51)	$ 71
Gain (Loss) on sale of business, after tax				(47)	0
Reduction in the number of regions	We reduced our U.S. regions from five to three
Number of regions	3	5
Reduction in the number of districts	we reduced our U.S. districts from 46 to 20
Number of districts	20	46
Number of management and administrative positions eliminated	1,800
Number of employees offered voluntary severance package	1,100
Restructuring charge related to reorganization of domestic management structure, pre tax						98
Restructuring charge related to reorganization of domestic management structure, after tax						$ 64