Goodwill and Other Purchased Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

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.

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

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

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

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