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Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Goodwill

		December31,
GOODWILL (Dollars in millions)		2024				2023
Carrying amount at beginning of year		$	1,378			$	1,375
Translation differences			(10	)			2
Carrying amount at end of year		$	1,368			$	1,378

Schedule of Amortizable Intangibles

		December 31,
AMORTIZABLE INTANGIBLES (Dollars in millions)		2024				2023
Gross carrying amount		$	386			$	391
Accumulated amortization			(379	)			(384	)
Carrying value		$	7			$	7

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- Definition

Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 55
-Paragraph 40
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482640/350-30-55-40

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482665/350-30-50-2

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- Definition

Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/350-30/tableOfContent

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/350-20/tableOfContent

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