Goodwill and Other Purchased Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2025

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, 2024 and 2025, were as follows:

$ in millions	Aeronautics Systems		Defense Systems		Mission Systems		Space Systems		Total
Balance as of December 31, 2023	$	3,974	$	3,722	$	5,881	$	3,940	$	17,517
Other (1)	—		(5)		—		—		(5)
Balance as of December 31, 2024	$	3,974	$	3,717	$	5,881	$	3,940	$	17,512
Divestiture of training services business	—		(80)		—		—		(80)
Other (1)	—		5		—		—		5
Balance as of December 31, 2025	$	3,974	$	3,642	$	5,881	$	3,940	$	17,437

(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	2025		2024
Gross customer-related and other intangible assets	$	3,372	$	3,371
Less accumulated amortization	(3,164)		(3,117)
Net customer-related and other intangible assets	$	208	$	254

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

As of December 31, 2025, the expected future amortization of purchased intangibles for each of the next five years is as follows:

$ in millions
2026	$	42
2027	31
2028	31
2029	31
2030	31