Goodwill, Customer Relationships and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

Goodwill, customer relationships and other intangible assets consisted of the following:

	March 31, 2025		December 31, 2024
	(Dollars in millions)
Goodwill	$	1,964	1,964
Indefinite-lived intangible assets	$	—	9
Other intangible assets subject to amortization:
Customer relationships, less accumulated amortization of $4,499 and $4,504(1)	3,048		3,196
Capitalized software, less accumulated amortization of $3,776 and $4,067(1)	1,544		1,529
Patents and other, less accumulated amortization of $89 and $86	68		72
Total other intangible assets, net	$	4,660	4,806

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(1)    Certain customer relationships with a gross carrying value of $161 million and capitalized software with a gross carrying value of $211 million became fully amortized during 2024 and were retired during the first quarter of 2025.