United Parcel Service, Inc. Quarterly report pursuant to Section 13 or 15(d)

Summary of Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 3,017ups_IntangibleAssetsGross	$ 3,129ups_IntangibleAssetsGross
Accumulated Amortization	(2,173)	(2,282)
Net Carrying Value	844	847
Capitalized software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,532	2,641
Accumulated Amortization	(1,874)	(1,997)
Net Carrying Value	658	644
Licenses
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	217	217
Accumulated Amortization	(144)	(133)
Net Carrying Value	73	84
Franchise rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	117	117
Accumulated Amortization	(78)	(77)
Net Carrying Value	39	40
Customer lists
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	118	123
Accumulated Amortization	(68)	(66)
Net Carrying Value	50	57
Trademarks, patents, and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	33	31
Accumulated Amortization	(9)	(9)
Net Carrying Value	$ 24	$ 22