Description of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

May 31, 2016

Property And Equipment (Tables) [Abstract]

Schedule of Depreciable Lives and Net Book Value of Property and Equipment

		Net Book Value at May 31,
	Range	2016		2015
Wide-body aircraft and related equipment	15 to 30 years	$	8,356	$	7,548
Narrow-body and feeder aircraft and related equipment	5 to 18 years		3,180		2,943
Package handling and ground support equipment	3 to 30 years		3,249		2,410
Vehicles	3 to 15 years		3,084		2,717
Computer and electronic equipment	2 to 10 years		1,051		866
Facilities and other	2 to 40 years		5,364		4,391