Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2026

Intangible Asset, Goodwill and Other [Abstract]

Schedule of Intangible Asset, Finite-Lived

Intangible assets consist of the following:


			September 30, 2026																		December 31, 2025
(Dollars in millions)			Gross Carrying Amount						Accumulated Amortization						Net Carrying Amount						Gross Carrying Amount						Accumulated Amortization						Net Carrying Amount
Acquired intangible assets			$	1,087					$	(1,000)					$	87					$	1,087					$	(984)					$	103
Patents and licenses			18						(11)						7						18						(9)						9
Total intangible assets			$	1,105					$	(1,011)					$	94					$	1,105					$	(993)					$	112