Goodwill, Customer Relationships and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

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

	June 30, 2024		December 31, 2023
	(Dollars in millions)
Goodwill	$	1,964	1,964
Indefinite-lived intangible assets	$	9	9
Other intangible assets subject to amortization:
Customer relationships, less accumulated amortization of $4,201 and $4,248(1)	3,501		3,811
Capitalized software, less accumulated amortization of $4,017 and $4,045(1)	1,538		1,564
Trade names, patents and other, less accumulated amortization of $79 and $72	79		86
Total other intangible assets, net	$	5,127	5,470

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(1)    Certain customer relationships with a gross carrying value of $352 million and capitalized software with a gross carrying value of $153 million became fully amortized during 2023 and were retired during the first quarter of 2024.

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

We estimate that future total amortization expense for finite-lived intangible assets will be as follows:

	(Dollars in millions)
2024 (remaining six months)	$	479
2025	900
2026	847
2027	759
2028	688
2029 and thereafter	1,445