Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Summary Of Amortization Of Intangible Assets

The following tables provide information relating to the Company’s amortized intangible assets as of December 31 (in millions):



	2012
	Cost		Accumulated Amortization		Net Book Value
Amortized intangible assets:
Airport operating rights	$	515	$	385	$	130
Gate lease rights	155		124		31
Total	$	670	$	509	$	161



	2011
	Cost		Accumulated Amortization		Net Book Value
Amortized intangible assets:
Airport operating rights	$	515	$	364	$	151
Gate lease rights	160		125		35
Total	$	675	$	489	$	186

- Definition

Tabular disclosure of amortizable intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References+ Details