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

12 Months Ended

May 31, 2019

Accounting Policies [Abstract]

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

The depreciable lives and net book value of our property and equipment are as follows (dollars in millions):

		Net Book Value at May 31,
	Range	2019		2018
Wide-body aircraft and related equipment	15 to 30 years	$	11,975	$	10,463
Narrow-body and feeder aircraft and related equipment	5 to 18 years		2,696		2,908
Package handling and ground support equipment	3 to 30 years		4,157		4,028
Information technology	2 to 10 years		1,553		1,277
Vehicles and trailers	3 to 15 years		4,042		3,747
Facilities and other	2 to 40 years		6,006		5,731