v3.26.3
Segment Information (Tables)
 9 Months Ended
Sep. 30, 2026
Segment Reporting [Abstract]  
Schedule of Segment Information
The following tables present selected financial information with respect to our single operating segment:

Three Months Ended September 30,Nine Months Ended September 30,
2026202520262025
(Dollars in millions)
Revenue$2,715 3,087 8,419 9,361 
Operating expenses
Cost of services and products related to network expenses800 929 2,450 2,846 
Headcount costs617 685 1,851 1,953 
Non-headcount costs781 902 2,289 2,436 
Net gain on sale of business(4)— (569)— 
Stock-based compensation18 13 49 35 
Depreciation and amortization670 674 2,002 2,075 
Goodwill impairment— — — 628 
Total operating expenses
2,882 3,203 8,072 9,973 
Total operating (loss) income(167)(116)347 (612)
Total other expense, net(168)(697)(760)(1,595)
Loss before income taxes(335)(813)(413)(2,207)
Income tax (benefit) expense(70)(192)253 (470)
Net loss$(265)(621)(666)(1,737)
Three Months Ended September 30,Nine Months Ended September 30,
2026202520262025
(Dollars in millions)
Revenue$2,715 3,087 8,419 9,361 
Operating expenses
Cost of services and products related to network expenses800 929 2,450 2,846 
Headcount costs617 685 1,851 1,953 
Non-headcount costs781 902 2,289 2,436 
Net gain on sale of business(4)— (569)— 
Adjusted EBITDA
$521 571 2,398 2,126 

Three Months Ended September 30,Nine Months Ended September 30,
2026202520262025
(Dollars in millions)
Net loss
$(265)(621)(666)(1,737)
Stock-based compensation18 13 49 35 
Depreciation and amortization670 674 2,002 2,075 
Goodwill impairment— — — 628 
Total other expense, net168 697 760 1,595 
Income tax (benefit) expense(70)(192)253 (470)
Adjusted EBITDA
$521 571 2,398 2,126