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

Segment Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Segment Information (Detail) - USD ($) $ in Millions	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Revenue	$ 17,456	$ 15,927	$ 34,569	$ 31,437
Operating Profit	1,773	2,037	3,293	3,654
U.S. Domestic Package
Segment Reporting Information [Line Items]
Operating Profit	939	1,255	1,695	2,205
International Package
Segment Reporting Information [Line Items]
Operating Profit	618	570	1,212	1,088
Supply Chain & Freight
Segment Reporting Information [Line Items]
Operating Profit	216	212	386	361
U.S \| U.S. Domestic Package
Segment Reporting Information [Line Items]
Revenue	10,354	9,741	20,581	19,277
International
Segment Reporting Information [Line Items]
Revenue	3,602	3,171	7,135	6,245
Supply Chain & Freight \| Supply Chain & Freight
Segment Reporting Information [Line Items]
Revenue	$ 3,500	$ 3,015	$ 6,853	$ 5,915