Intangible assets are generally the result of acquisitions and consist primarily of purchased technology and customer related intangibles. Intangible assets are amortized over useful lives that range between 1 to 20 years.

The following tables present the cumulative composition of the Corporation’s intangible assets:


	June 30, 2026						December 31, 2025
(In thousands)	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Technology	$	331,239	$	(230,943)	$	100,296	$	334,997	$	(226,674)	$	108,323
Customer related intangibles	745,376		(434,708)		310,668		748,758		(419,577)		329,181
Programs (1)	144,000		(59,400)		84,600		144,000		(55,800)		88,200
Other intangible assets	54,623		(49,160)		5,463		55,893		(49,216)		6,677
Total	$	1,275,238	$	(774,211)	$	501,027	$	1,283,648	$	(751,267)	$	532,381

(1) Programs include values assigned to major programs of acquired businesses and represent the aggregate value associated with the customer relationships, contracts, technology, and trademarks underlying the associated program.

Total intangible amortization expense for the six months ended June 30, 2026 was $30 million, as compared to $36 million in the comparable prior year period. The estimated future amortization expense of intangible assets over the next five years is as follows: