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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The balances in the allowance accounts at December 31, 2012 and 2011 were as follows (table in thousands):



	December 31,
	2012		2011
Current	$	68,465	$	61,804
Non-current (included in other assets, net)	3,850		2,850
	$	72,315	$	64,654

Estimated Useful Lives of the Assets

Depreciation commences upon placing the asset in service and is recognized on a straight-line basis over the estimated useful lives of the assets, as follows:



Furniture and fixtures			5-10 years
Equipment and software			2-10 years
Improvements			5-31 years
Buildings			15-51 years

Property, plant and equipment consist of (table in thousands):



	December 31, 2012			December 31, 2011
Furniture and fixtures	$	197,429		$	180,800
Equipment and software	5,345,314			4,680,118
Buildings and improvements	1,872,559			1,748,214
Land	120,654			117,513
Building construction in progress	196,891			146,650
	7,732,847			6,873,295
Accumulated depreciation	(4,588,299		)	(4,040,146		)
	$	3,144,548		$	2,833,149

- 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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