Goodwill and Other Purchased Intangible Assets

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

8. GOODWILL AND OTHER PURCHASED INTANGIBLE ASSETS

Goodwill

Changes in the carrying amounts of goodwill for the years ended December 31, 2020 and 2021, were as follows:

$ in millions	Aeronautics Systems		Defense Systems		Mission Systems		Space Systems		Total
Balance as of December 31, 2019	$	3,467	$	4,376	$	6,062	$	4,803	$	18,708
Reclassification to assets of disposal group held for sale (1)	—		(966)		(181)		(48)		(1,195)
Other (2)	—		5		—		—		5
Balance as of December 31, 2020	$	3,467	$	3,415	$	5,881	$	4,755	$	17,518
Other (2)	—		(3)		—		—		(3)
Balance as of December 31, 2021	$	3,467	$	3,412	$	5,881	$	4,755	$	17,515

(1)Represents the reclassification of goodwill to assets of disposal group held for sale due to the divestiture of our IT and mission support services business that was pending as of December 31, 2020 (See Note 2).

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

At December 31, 2021 and 2020, accumulated goodwill impairment losses totaled $417 million and $153 million at Aeronautics Systems and Space Systems, respectively.

Other Purchased Intangible Assets

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

	December 31
$ in millions	2021		2020
Gross customer-related and other intangible assets	$	3,361	$	3,362
Less accumulated amortization	(2,783)		(2,579)
Net customer-related and other intangible assets	$	578	$	783

Amortization expense for 2021, 2020 and 2019, was $204 million, $262 million and $332 million, respectively. As of December 31, 2021, the expected future amortization of purchased intangibles for each of the next five years is as follows:

$ in millions
2022	$	197
2023	79
2024	56
2025	44
2026	42