Goodwill and Other Purchased Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2023

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, 2022 and 2023, were as follows:

$ in millions	Aeronautics Systems		Defense Systems		Mission Systems		Space Systems		Total
Balance as of December 31, 2021	$	3,467	$	3,412	$	5,881	$	4,755	$	17,515
Other (1)	—		1		—		—		1
Balance as of December 31, 2022	$	3,467	$	3,413	$	5,881	$	4,755	$	17,516
Other (1)	—		1		—		—		1
Balance as of December 31, 2023	$	3,467	$	3,414	$	5,881	$	4,755	$	17,517

(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	2023		2022
Gross customer-related and other intangible assets	$	3,365	$	3,364
Less accumulated amortization	(3,060)		(2,980)
Net customer-related and other intangible assets	$	305	$	384

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

As of December 31, 2023, the expected future amortization of purchased intangibles for each of the next five years is as follows:

$ in millions
2024	$	57
2025	45
2026	42
2027	31
2028	31