Goodwill, Customer Relationships and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill, customer relationships and other intangible assets

Customer relationships and other intangible assets consisted of the following:

	March 31, 2024		December 31, 2023
	(Dollars in millions)
Customer relationships, less accumulated amortization of $4,047 and $3,896	$	3,655	3,810
Capitalized software, less accumulated amortization of $431 and $419	412		427
Total customer relationships and other intangible assets, net	$	4,067	4,237

Schedule of estimated amortization expense for intangible assets

We estimate that total amortization expense for intangible assets for the years ending December 31, 2024 through 2028 will be as provided in the table below.

	(Dollars in millions)
2024 (remaining nine months)	$	519
2025	649
2026	636
2027	594
2028	557