Goodwill and Other Intangible Assets (Tables)

The Company’s acquired intangible assets with definite lives primarily consist of patents and licenses and are amortized over periods typically from three to seven years. The following table summarizes the components of gross and net intangible asset balances as of September 29, 2012 and September 24, 2011 (in millions):


	2012							2011
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount

Definite lived and amortizable acquired intangible assets	$	5,166	$	(1,042	)	$	4,124	$	3,873	$	(437	)	$	3,436
Indefinite lived and non-amortizable trademarks		100		0			100		100		0			100

Total acquired intangible assets	$	5,266	$	(1,042	)	$	4,224	$	3,973	$	(437	)	$	3,536

The expected annual amortization expense related to acquired intangible assets as of September 29, 2012, is as follows (in millions):


2013	$	673
2014		737
2015		753
2016		758
2017		635
Thereafter		568

Total	$	4,124