Summary of Significant Accounting Policies Table (Tables)

12 Months Ended

Dec. 31, 2011

Property, Plant and Equipment [Table Text Block]

The following table shows our property and equipment:



		December 31,
(in millions, except for estimated useful life)	Estimated Useful Life	2011			2010
Flight equipment	21-30 years	$	21,001		$	20,312
Ground property and equipment	3-40 years	3,256			3,123
Flight and ground equipment under capital leases	Shorter of lease term or estimated useful life	1,127			988
Assets constructed for others	30 years	234			—
Advance payments for equipment		77			48
Less: accumulated depreciation and amortization		(5,472		)	(4,164		)
Total property and equipment, net		$	20,223		$	20,307

- 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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