Segment Information (Tables)

9 Months Ended

Sep. 30, 2024

Segment Reporting [Abstract]

Schedule of Segment Results

The following tables summarize our segment results for the three and nine months ended September 30, 2024 and 2023, based on our segment categorization as of September 30, 2024.

	Three Months Ended September 30, 2024			Nine Months Ended September 30, 2024
	Business		Mass Markets	Business	Mass Markets
	(Dollars in millions)
Segment revenue	$	2,536	685	7,704	2,075
Segment expenses:
Cost of services and products	766		16	2,266	53
Selling, general and administrative	453		323	1,407	937
Total segment expense	1,219		339	3,673	990
Total segment adjusted EBITDA	$	1,317	346	4,031	1,085

	Three Months Ended September 30, 2023			Nine Months Ended September 30, 2023
	Business		Mass Markets	Business	Mass Markets
	(Dollars in millions)
Segment revenue	$	2,905	736	8,781	2,259
Segment expenses:
Cost of services and products	825		19	2,428	61
Selling, general and administrative	610		364	1,723	1,038
Total segment expense	1,435		383	4,151	1,099
Total segment adjusted EBITDA	$	1,470	353	4,630	1,160

Schedule of Reconciliation of Segment Adjusted EBITDA to Net (Loss) Income

The following table reconciles total segment adjusted EBITDA to net loss for the three and nine months ended September 30, 2024 and 2023:

	Three Months Ended September 30,			Nine Months Ended September 30,
	2024		2023	2024	2023
	(Dollars in millions)
Total segment adjusted EBITDA	$	1,663	1,823	5,116	5,790
Depreciation and amortization	(707)		(755)	(2,198)	(2,234)
Goodwill impairment	—		—	—	(8,793)
Other unallocated expense	(820)		(829)	(2,591)	(2,532)
Stock-based compensation expense	(10)		(16)	(21)	(39)
Operating income (loss)	126		223	306	(7,808)
Total other expense, net	(298)		(308)	(417)	(287)
Loss before income taxes	(172)		(85)	(111)	(8,095)
Income tax (benefit) expense	(24)		(7)	29	208
Net loss	$	(148)	(78)	(140)	(8,303)