NOTE 9    INTANGIBLE ASSETS

The components of finite-lived intangible assets are as follows:

(In millions)
June 30	2006						2005
	Gross carrying amount		Accumulated amortization		Net carrying amount		Gross carrying amount		Accumulated amortization		Net carrying amount
Contract-based	$0,954		$(661)		$292		$0,957		$(606)		$351
Technology-based	458		(255)		203		309		(200)		109
Marketing-related	42		(32)		10		35		(25)		10
Customer-related	54		(21)		33		40		(11)		29
Total	$1,508		$(969)		$539		$1,341		$(842)		$499

During fiscal year 2006 and 2005, we recorded additions to intangible assets of $189 million and $90 million, respectively. We estimate that we have no significant residual value related to our intangible assets. The components of finite-lived intangible assets acquired during fiscal years 2006 and 2005 were as follows:

(In millions)
Year Ended June 30	2006				2005
	Amount		Weighted average life		Amount		Weighted average life
Contract-based	$  36		4 years		$ 16		6 years
Technology-based	140		4 years		64		5 years
Marketing-related	5		3 years		–		–
Customer-related	8		4 years		10		5 years
Total	$ 189				$ 90

Acquired intangibles are generally amortized on a straight-line basis over weighted average periods. Intangible assets amortization expense was $127 million for fiscal year 2006, $161 million for fiscal year 2005, and $170 million for fiscal year 2004. The estimated future amortization expense related to intangible assets as of June 30, 2006 is as follows:

(In millions)
Year Ended June 30	Amount
2007	$ 150
2008	126
2009	83
2010	60
2011	46
Total	$ 465