Segment Information (Tables)

12 Months Ended

Dec. 31, 2024

Segment Reporting [Abstract]

Schedule of Total Revenues and Intersegment Revenues by Segment

Revenues, expenses, and operating earnings by segment and the reconciliation to earnings before taxes for the years ended December 31, 2024, 2023 and 2022, consists of the following:

(Dollars in millions)	2024		2023		2022
Revenues
ASC	$	2,118	$	1,831	$	1,733
IMS	1,138		1,021		983
Corporate & Eliminations	(22)		(26)		(23)
Total revenues	$	3,234	$	2,826	$	2,693
Cost of revenues
ASC	$	1,598	$	1,370	$	1,335
IMS	922		834		806
Corporate & Eliminations	(22)		(26)		(23)
Total cost of revenues	$	2,498	$	2,178	$	2,118
General and administrative
ASC	$	234	$	226	$	194
IMS	81		79		62
Corporate & Eliminations	7		(3)		43
Total general and administrative	$	322	$	302	$	299

Company-funded research and development
ASC	$	74	$	66	$	44
IMS	18		16		14
Corporate & Eliminations	—		—		—
Total company-funded research and development	$	92	$	82	$	58
Amortization of intangibles
ASC	$	22	$	22	$	10
IMS	—		—		—
Corporate & Eliminations	—		—		—
Total amortization of intangibles	$	22	$	22	$	10
Other segment items
ASC	$	7	$	11	$	(353)
IMS	—		—		—
Corporate & Eliminations	—		—		—
Total other segment items(1)	$	7	$	11	$	(353)
Operating earnings
ASC	$	183	$	136	$	503
IMS	117		92		101
Corporate & Eliminations	(7)		3		(43)
Total operating earnings	$	293	$	231	$	561
Interest expense	(21)		(36)		(34)
Other, net	(8)		(3)		(2)
Earnings before taxes	$	264	$	192	$	525

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(1)Includes ASC restructuring costs for 2024, 2023 and 2022 and ASC gain on divestitures for 2022.

Total intersegment revenues by segment for the years ended December 31, 2024, 2023 and 2022, consists of the following:

(Dollars in millions)	2024		2023		2022
ASC	$	21	$	25	$	21
IMS	1		1		2
Total intersegment revenues	$	22	$	26	$	23

Schedule of Depreciation, Assets by Segment

Depreciation by segment for the years ended December 31, 2024, 2023 and 2022, consists of the following:

(Dollars in millions)	2024		2023		2022
ASC	$	48	$	44	$	36
IMS	21		19		19
Total depreciation	$	69	$	63	$	55

Total assets by segment as of December 31, 2024 and 2023, consists of the following:

(Dollars in millions)	2024		2023
ASC	$	2,249	$	2,244
IMS	1,225		1,146
Corporate & Eliminations	710		531
Total assets	$	4,184	$	3,921