Segment Information (Tables)

6 Months Ended

Jun. 30, 2022

Segment Reporting [Abstract]

Schedule of Segment Results

The following tables summarize our segment results for the three and six months ended June 30, 2022 and 2021, based on the segment categorization we were operating under at June 30, 2022.

	Three Months Ended June 30, 2022
	Business		Mass Markets	Total Segments	Operations and Other	Total
	(Dollars in millions)
Revenue	$	3,416	1,196	4,612	—	4,612
Expenses:
Cost of services and products	845		34	879	1,179	2,058
Selling, general and administrative	284		136	420	395	815
Less: stock-based compensation	—		—	—	(25)	(25)
Total expense	1,129		170	1,299	1,549	2,848
Total adjusted EBITDA	$	2,287	1,026	3,313	(1,549)	1,764

	Three Months Ended June 30, 2021
	Business		Mass Markets	Total Segments	Operations and Other	Total
	(Dollars in millions)
Revenue	$	3,522	1,402	4,924	—	4,924
Expenses:
Cost of services and products	863		40	903	1,212	2,115
Selling, general and administrative	295		153	448	314	762
Less: stock-based compensation	—		—	—	(42)	(42)
Total expense	1,158		193	1,351	1,484	2,835
Total adjusted EBITDA	$	2,364	1,209	3,573	(1,484)	2,089

	Six Months Ended June 30, 2022
	Business		Mass Markets	Total Segments	Operations and Other	Total
	(Dollars in millions)
Revenue	$	6,817	2,471	9,288	—	9,288
Expenses:
Cost of services and products	1,660		66	1,726	2,317	4,043
Selling, general and administrative	582		270	852	763	1,615
Less: stock-based compensation	—		—	—	(48)	(48)
Total expense	2,242		336	2,578	3,032	5,610
Total adjusted EBITDA	$	4,575	2,135	6,710	(3,032)	3,678

	Six Months Ended June 30, 2021
	Business		Mass Markets	Total Segments	Operations and Other	Total
	(Dollars in millions)
Revenue	$	7,117	2,836	9,953	—	9,953
Expenses:
Cost of services and products	1,747		83	1,830	2,421	4,251
Selling, general and administrative	599		287	886	632	1,518
Less: stock-based compensation	—		—	—	(62)	(62)
Total expense	2,346		370	2,716	2,991	5,707
Total adjusted EBITDA	$	4,771	2,466	7,237	(2,991)	4,246

Reconciliation of Operating Profit (Loss) From Segments to Consolidated Net Income

The following table reconciles total segment adjusted EBITDA to net income for the three and six months ended June 30, 2022 and 2021:

	Three Months Ended June 30,			Six Months Ended June 30,
	2022		2021	2022	2021
	(Dollars in millions)
Total segment adjusted EBITDA	$	3,313	3,573	6,710	7,237
Operations and other expenses	(1,549)		(1,484)	(3,032)	(2,991)
Depreciation and amortization	(827)		(1,041)	(1,635)	(2,191)
Stock-based compensation	(25)		(42)	(48)	(62)
Operating income	912		1,006	1,995	1,993
Total other expense, net	(459)		(332)	(741)	(687)
Income before income taxes	453		674	1,254	1,306
Income tax expense	109		168	311	325
Net income	$	344	506	943	981