Goodwill, Customer Relationships and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2022

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, 2022		December 31, 2021
	(Dollars in millions)
Goodwill	$	9,360	9,360
Customer relationships, less accumulated amortization of $— and $5,699 (1)	$	—	—
Other intangible assets, less accumulated amortization of $1,877 and $1,876	186		199
Total other intangible assets, net	$	186	199

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(1)Customer relationships with a gross carrying value of $5.7 billion became fully amortized during 2021 and were retired during the first quarter of 2022.

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

We estimate that total amortization expense for intangible assets for the years ending December 31, 2022 through 2026 will be as follows:

	(Dollars in millions)
2022 (remaining nine months)	$	56
2023	59
2024	30
2025	12
2026	7