Property and Equipment

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Property and Equipment

PROPERTY AND EQUIPMENT

Property and equipment, at cost, consisted of the following (in millions): 

	December 31,
	2020		2021
Gross property and equipment (1):
Land and buildings	$	57,324	$	81,104
Equipment	97,224		128,683
Other assets	3,772		4,118
Construction in progress	15,228		24,895
Gross property and equipment	173,548		238,800
Total accumulated depreciation and amortization (1)	60,434		78,519
Total property and equipment, net	$	113,114	$	160,281

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(1)Includes the original cost and accumulated depreciation of fully-depreciated assets.

Depreciation and amortization expense on property and equipment was $15.1 billion, $16.2 billion, and $22.9 billion which includes amortization of property and equipment acquired under finance leases of $10.1 billion, $8.5 billion, and $9.9 billion for 2019, 2020, and 2021.