Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2012

December 31 (in millions)	Weighted-Average Original Useful Life as of December 31, 2012		2012		2011
Cable distribution system	11 years	$	29,528	$	28,781
Customer premises equipment	6 years		24,763		23,552
Other equipment	5 years		5,909		5,685
Buildings and leasehold improvements	14 years		5,468		5,094
Land	-		989		975
Property and equipment, at cost			66,657		64,087
Less: Accumulated depreciation			39,425		36,528
Property and equipment, net		$	27,232	$	27,559

- 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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