Goodwill and Other Purchased Intangible Assets

12 Months Ended

Dec. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

7. GOODWILL AND OTHER PURCHASED INTANGIBLE ASSETS

Goodwill

Changes in the carrying amounts of goodwill for the years ended December 31, 2023 and 2024, were as follows:

$ in millions	Aeronautics Systems		Defense Systems		Mission Systems		Space Systems		Total
Balance as of December 31, 2022	$	3,467	$	4,228	$	5,881	$	3,940	$	17,516
Other (1)	—		1		—		—		1
Balance as of December 31, 2023	$	3,467	$	4,229	$	5,881	$	3,940	$	17,517
Other (1)	—		(5)		—		—		(5)
Balance as of December 31, 2024	$	3,467	$	4,224	$	5,881	$	3,940	$	17,512

(1)Other consists primarily of adjustments for foreign currency translation.

At December 31, 2024 and 2023, accumulated goodwill impairment losses totaled $417 million at Aeronautics Systems, $121 million at Space Systems, and $32 million at Defense Systems.

Other Purchased Intangible Assets

Net customer-related and other intangible assets are as follows:

	December 31
$ in millions	2024		2023
Gross customer-related and other intangible assets	$	3,371	$	3,365
Less accumulated amortization	(3,117)		(3,060)
Net customer-related and other intangible assets	$	254	$	305

Amortization expense for 2024, 2023 and 2022, was $57 million, $80 million and $197 million, respectively. As of December 31, 2024, the expected future amortization of purchased intangibles for each of the next five years is as follows:

$ in millions
2025	$	45
2026	42
2027	31
2028	31
2029	31