Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2012

Property and equipment at December 31 consisted of the following (in millions):


	2012			2011
Land	$	657		$	663
Landfills		13,266			12,940
Vehicles		3,954			3,705
Machinery and equipment		3,967			3,731
Containers		2,482			2,392
Buildings and improvements		3,514			3,273
Furniture, fixtures and office equipment		923			846

		28,763			27,550
Less accumulated depreciation on tangible property and equipment		(8,924	)		(8,377	)
Less accumulated landfill airspace amortization		(7,188	)		(6,931	)

	$	12,651		$	12,242

Depreciation and Amortization Expense Including Amortization Expense for Assets Recorded as Capital Leases

Depreciation and amortization expense, including amortization expense for assets recorded as capital leases, was comprised of the following for the years ended December 31 (in millions):


	2012		2011		2010
Depreciation of tangible property and equipment	$	833	$	800	$	781
Amortization of landfill airspace		395		378		372

Depreciation and amortization expense	$	1,228	$	1,178	$	1,153

- Definition

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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