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

12 Months Ended

May 31, 2021

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	2021		2020
Wide-body aircraft and related equipment	15 to 30 years	$	14,812	$	13,448
Narrow-body and feeder aircraft and related equipment	5 to 30 years		2,307		2,478
Package handling and ground support equipment	3 to 30 years		5,269		4,499
Information technology	2 to 10 years		1,863		1,795
Vehicles and trailers	3 to 15 years		4,033		4,345
Facilities and other	2 to 40 years		7,468		7,043