v3.10.0.1
Property and Equipment (Tables)
6 Months Ended
Jun. 30, 2018
Property, Plant and Equipment [Abstract]  
Property and Equipment
Property and equipment consists of the following (in millions): 
 
June 30,
2018
 
December 31,
2017
Land
$
844

 
$
798

Buildings
5,935

 
4,909

Leasehold improvements
1,472

 
959

Network equipment
10,147

 
7,998

Computer software, office equipment and other
896

 
681

Construction in progress
4,624

 
2,992

Total
23,918

 
18,337

Less: Accumulated depreciation
(5,561
)
 
(4,616
)
Property and equipment, net
$
18,357

 
$
13,721