Goodwill and Other Purchased Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

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, 2021 and 2022, were as follows:

$ in millions	Aeronautics Systems		Defense Systems		Mission Systems		Space Systems		Total
Balance as of December 31, 2020	$	3,467	$	3,415	$	5,881	$	4,755	$	17,518
Other (1)	—		(3)		—		—		(3)
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

(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	2022		2021
Gross customer-related and other intangible assets	$	3,364	$	3,361
Less accumulated amortization	(2,980)		(2,783)
Net customer-related and other intangible assets	$	384	$	578

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

As of December 31, 2022, the expected future amortization of purchased intangibles for each of the next five years is as follows:

$ in millions
2023	$	80
2024	57
2025	45
2026	42
2027	31