PROPERTY AND EQUIPMENT (Forest Products)

12 Months Ended

Dec. 31, 2011

Forest Products

Property, Plant and Equipment [Line Items]

Property, Plant and Equipment Disclosure [Text Block]

PROPERTY AND EQUIPMENT

Forest Products property and equipment includes land, buildings and improvements, machinery and equipment, roads and other items.

Carrying Value of Forest Products Property and Equipment and Estimated Service Lives

DOLLAR AMOUNTS IN MILLIONS
	RANGE OF LIVES	DECEMBER 31, 2011			DECEMBER 31, 2010
Property and equipment, at cost:
Land	N/A	$	142		$	162
Buildings and improvements	10–40	1,405			1,572
Machinery and equipment	2–25	7,036			7,372
Roads	10–20	537			551
Other	3–10	331			344
Total cost		9,451			10,001
Allowance for depreciation and amortization		(6,550		)	(6,784		)
Property and equipment, net		$	2,901		$	3,217

SERVICE LIVES AND DEPRECIATION

Buildings and improvements for Forest Products property and equipment have estimated lives that are generally at either the high end or low end of the range from 10 years to 40 years, depending on the type and performance of construction.

The maximum service lives for Forest Products machinery and equipment varies among our operations:

• Timberlands — 15 years;

• Wood products manufacturing facilities — 20 years; and

• Primary pulp mills — 25 years.

Forest Products depreciation expense, excluding discontinued operations, was:

• $361 million in 2011,

• $391 million in 2010 and

• $416 million in 2009.