XML 55 R33.htm IDEA: XBRL DOCUMENT v3.7.0.1
Description of Business and Summary of Significant Accounting Policies (Tables)
 12 Months Ended
May 31, 2017
Property And Equipment Tables [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

 

2017

 

 

2016

 

Wide-body aircraft and related equipment

 

15 to 30 years

 

$

9,103

 

 

$

8,356

 

Narrow-body and feeder aircraft and related equipment

 

5 to 18 years

 

 

3,099

 

 

 

3,180

 

Package handling and ground support equipment

 

3 to 30 years

 

 

3,862

 

 

 

3,249

 

Information technology

 

2 to 10 years

 

 

1,114

 

 

 

1,051

 

Vehicles

 

3 to 15 years

 

 

3,400

 

 

 

3,084

 

Facilities and other

 

2 to 40 years

 

 

5,403

 

 

 

5,364