Goodwill, Customer Relationships and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2024

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, 2024		December 31, 2023
	(Dollars in millions)
Goodwill	$	6,955	6,955
Other intangible assets, less accumulated amortization of $1,958 and $1,966	$	99	103

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

We estimate that total amortization expense for intangible assets for the years ending December 31, 2024 through 2028 will be as follows:

	(Dollars in millions)
2024 (remaining nine months)	$	25
2025	26
2026	15
2027	11
2028	8