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GOODWILL AND INTANGIBLE ASSETS
12 Months Ended
Dec. 30, 2011
Goodwill and Intangible Assets
GOODWILL AND INTANGIBLE ASSETS
The following table details the composition of our other intangible assets:
 
($ in millions)
At Year-End 2011
 
At Year-End 2010
Contract acquisition costs and other
$
1,239

 
$
1,145

Accumulated amortization
(393
)
 
(377
)
 
$
846

 
$
768



We capitalize costs incurred to acquire management, franchise, and license agreements that are both direct and incremental. We amortize these costs on a straight-line basis over the initial term of the agreements, ranging from 15 to 30 years. Amortization expense totaled $41 million in 2011, $40 million in 2010, and $34 million in 2009. Our estimated aggregate amortization expense for each of the next five fiscal years is as follows: $41 million for 2012; $37 million for 2013; $36 million for 2014; $36 million for 2015; and $36 million for 2016.

The following table details the carrying amount of goodwill:
 
($ in millions)
At Year-End 2011
 
At Year-End 2010
Goodwill
$
929

 
$
929

Accumulated impairment losses
(54
)
 
(54
)
 
$
875

 
$
875