OTHER INTANGIBLE ASSETS, NET

12 Months Ended

Dec. 31, 2022

Intangible Assets, Net (Excluding Goodwill) [Abstract]

OTHER INTANGIBLE ASSETS, NET

9. OTHER INTANGIBLE ASSETS, NET

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

The following tables present the cumulative composition of the Corporation’s intangible assets as of December 31, 2023 and December 31, 2022, respectively.

	2023						2022
(In thousands)	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Technology	$	308,256	$	(195,446)	$	112,810	$	306,160	$	(176,675)	$	129,485
Customer-related intangibles	670,966		(339,325)		331,641		666,638		(298,160)		368,478
Programs (1)	144,000		(41,400)		102,600		144,000		(34,200)		109,800
Other intangible assets	54,227		(43,666)		10,561		53,879		(40,745)		13,134
Total	$	1,177,449	$	(619,837)	$	557,612	$	1,170,677	$	(549,780)	$	620,897

(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.

During the year ended December 31, 2023, the Corporation did not acquire any intangible assets. During the year ended December 31, 2022, the Corporation acquired intangible assets of $147 million as a result of the Corporation's Keronite and arresting systems acquisitions, which included Customer-related intangibles of $106 million, Technology of $36 million, and Other intangible assets of $5 million. The weighted average amortization periods for these aforementioned intangible assets upon acquisition were 16.1, 14.9, and 10.0 years, respectively.

Amortization expense for the years ended December 31, 2023, 2022, and 2021 was $65 million, $61 million, and $60 million, respectively. The estimated future amortization expense of intangible assets over the next five years is as follows:

(In millions)
2024	$	56
2025	$	54
2026	$	53
2027	$	50
2028	$	44