Property and Equipment

9 Months Ended

Sep. 30, 2020

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and Equipment

Property and equipment, net consists of the following (in millions): 

	September 30, 2020			December 31, 2019
Land	$	1,319		$	1,097
Buildings	16,053			11,226
Leasehold improvements	3,799			3,112
Network equipment	20,527			17,004
Computer software, office equipment and other	2,246			1,813
Finance lease right-of-use assets	2,035			1,635
Construction in progress	10,449			10,099
Total	56,428			45,986
Less: Accumulated depreciation	(14,137		)	(10,663		)
Property and equipment, net	$	42,291		$	35,323

Depreciation expense on property and equipment was $1.58 billion and $1.27 billion for the three months ended September 30, 2020 and 2019, respectively, and $4.65 billion and $3.82 billion for the nine months ended September 30, 2020 and 2019, respectively. Construction in progress includes costs mostly related to construction of data centers, network equipment infrastructure to support our data centers around the world, and office buildings. No interest was capitalized for any period presented.