Other Intangible Assets and Liabilities

Amortized intangible assets and liabilities were as follows (in millions):



	Successor
	As of June 30, 2011				As of December 31, 2010
	Gross Carrying		Accumulated		Gross Carrying		Accumulated
	Amount		Amortization		Amount		Amortization

Amortized intangible assets	$	2,013	$	438	$	2,013	$	281
Amortized intangible liabilities	$	2,056	$	413	$	2,056	$	266

Amortized intangible assets primarily consisted of internally developed software and franchise & customer assets. Amortized intangible liabilities primarily consisted of customer and shortline contracts which were in an unfavorable position at the date of Merger.

Amortized intangible assets and liabilities are amortized based on the estimated pattern in which the economic benefits are expected to be consumed or on a straight-line basis over their estimated economic lives.

Amortization of intangible assets and liabilities was as follows (in millions):



	Successor				Predecessor
			February 13 —		January 1 —
	Six Months Ended		June 30,		February 12,
	June 30, 2011		2010		2010
Amortization of intangible assets	$	157	$	127	$	—
Amortization of intangible liabilities	$	147	$	115	$	—

Amortization of intangible assets and liabilities for the next five years is expected to approximate the following (in millions):



	Amortization of		Amortization of
	intangible assets		intangible liabilities
Remainder of 2011	$	155	$	146
2012	$	306	$	282
2013	$	306	$	252
2014	$	306	$	179
2015	$	54	$	115