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Segment Information (Tables)

9 Months Ended

Sep. 30, 2025

Segment Reporting [Abstract]

Schedule of Revenues, Expenses, and Operating Earnings by Segment and Reconciliation to Earnings before Taxes

Revenues, expenses, and operating earnings by segment and the reconciliation to earnings before taxes for the periods ended September 30, 2025 and 2024 consists of the following:

			Three Months Ended September 30,												Nine Months Ended September 30,
(Dollars in millions)			2025						2024						2025						2024
Revenues
ASC			$	580					$	533					$	1,633					$	1,458
IMS			383						285						964						812
Corporate & Eliminations			(3)						(6)						(9)						(17)
Total revenues			$	960					$	812					$	2,588					$	2,253
Cost of revenues
ASC			$	437					$	411					$	1,237					$	1,111
IMS			304						228						760						658
Corporate & Eliminations			(3)						(6)						(9)						(17)
Total cost of revenues			$	738					$	633					$	1,988					$	1,752
General and administrative
ASC			$	63					$	52					$	196					$	173
IMS			24						22						71						64
Corporate & Eliminations			—						1						—						5
Total general and administrative			$	87					$	75					$	267					$	242
Company-funded research and development
ASC			$	29					$	19					$	76					$	51
IMS			7						4						18						13
Corporate & Eliminations			—						—						—						—
Total company-funded research and development			$	36					$	23					$	94					$	64
Amortization of intangibles
ASC			$	5					$	6					$	16					$	17
IMS			—						—						—						—
Corporate & Eliminations			—						—						—						—
Total amortization of intangibles			$	5					$	6					$	16					$	17
Other segment items
ASC			$	1					$	—					$	1					$	5
IMS			—						—						—						—
Corporate & Eliminations			—						—						—						—
Total other segment items(1)			$	1					$	—					$	1					$	5
Operating earnings
ASC			$	45					$	45					$	107					$	101
IMS			48						31						115						77
Corporate & Eliminations			—						(1)						—						(5)
Total operating earnings			$	93					$	75					$	222					$	173
Interest expense, net			(4)						(5)						(7)						(17)
Other, net			(2)						(1)						(3)						(3)
Earnings before taxes			$	87					$	69					$	212					$	153

________________

(1)Includes ASC restructuring costs for the periods presented.

Total intersegment revenues by segment for the periods ended September 30, 2025 and 2024 consists of the following:

			Three Months Ended September 30,												Nine Months Ended September 30,
(Dollars in millions)			2025						2024						2025						2024
ASC			$	3					$	6					$	9					$	17
IMS			—						—						—						—
Total intersegment revenues			$	3					$	6					$	9					$	17

Schedule of Depreciation, Assets by Segment

Depreciation by segment for the periods ended September 30, 2025 and 2024 consists of the following:

			Three Months Ended September 30,												Nine Months Ended September 30,
(Dollars in millions)			2025						2024						2025						2024
ASC			$	12					$	12					$	36					$	36
IMS			6						5						17						15
Total depreciation			$	18					$	17					$	53					$	51

Total assets by segment as of September 30, 2025 and December 31, 2024, consists of the following:

(Dollars in millions)															September 30, 2025						December 31, 2024
ASC															$	2,465					$	2,249
IMS															1,344						1,225
Corporate & Eliminations															436						710
Total assets															$	4,245					$	4,184

X

- Definition

Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-31

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Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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