PROPERTY AND EQUIPMENT, NET

12 Months Ended

Dec. 31, 2021

Property Plant And Equipment [Abstract]

PROPERTY AND EQUIPMENT, NET

NOTE 7: PROPERTY AND EQUIPMENT, NET

Property and equipment includes land, buildings and improvements, machinery and equipment, roads and other items.

Carrying Value of Property and Equipment and Estimated Service Lives

DOLLAR AMOUNTS IN MILLIONS
	RANGE OF LIVES	DECEMBER 31, 2021			DECEMBER 31, 2020
Property and equipment, at cost:
Land	N/A	$	83		$	84
Buildings and improvements	15-40		1,104			1,049
Machinery and equipment	5-25		3,640			3,486
Roads	10-35		724			725
Other	3-10		98			101
Total cost			5,649			5,445
Accumulated depreciation and amortization			(3,592	)		(3,432	)
Property and equipment, net		$	2,057		$	2,013

SERVICE LIVES AND DEPRECIATION

In general, additions are classified into components, each with its own estimated useful life as determined at the time of purchase.

Depreciation and amortization expense for property and equipment was:

• $241 million in 2021,

• $243 million in 2020 and

• $240 million in 2019.