Goodwill, Customer Relationships and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill, customer relationships and other intangible assets

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

	As of December 31,
	2023		2022(1)
	(Dollars in millions)
Goodwill(2)	$	—	1,970
Customer relationships(3), less accumulated amortization of $3,896 and $3,265	$	3,810	4,563
Capitalized software, less accumulated amortization of $419 and $387	427		410
Trade names, less accumulated amortization of — and $130(4)	—		—
Total other intangible assets, net	$	4,237	4,973

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(1)These values exclude assets classified as held for sale.

(2)We recorded a non-cash, non-tax-deductible goodwill impairment charge of $2.0 billion during the second quarter of 2023.

(3)For the year ended December 31, 2023, customer relationships decreased $121 million in conjunction with the sale of select CDN customer contracts in the fourth quarter of 2023 that resulted in a net loss of $73 million included in selling, general and administrative expenses in our consolidated statement of operations.

(4)Trade names with a gross carrying value of $130 million became fully amortized during 2022 and were retired during the first quarter of 2023.

Schedule of goodwill

The following table shows the rollforward of goodwill from December 31, 2021 through December 31, 2023:

	(Dollars in millions)
As of December 31, 2021 (1)	$	6,666
Effect of foreign currency exchange rate changes and other	(58)
Impairment	(4,638)
As of December 31, 2022 (1)	1,970
Impairment	(1,970)
As of December 31, 2023 (1)	$	—

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(1)Goodwill at December 31, 2023, December 31, 2022, December 31, 2021 is net of accumulated impairment loss of $10.2 billion, $8.2 billion and $3.6 billion, respectively.

Schedule of estimated amortization expense of intangible asset

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

	(Dollars in millions)
2024	$	669
2025	650
2026	637
2027	596
2028	553