v3.25.3
Deferred Revenue (Tables)
9 Months Ended
Sep. 30, 2025
Revenue Recognition and Deferred Revenue [Abstract]  
Summary of Deferred Revenue Activity

Deferred revenue activity consisted of the following (dollars in millions):

 

 

 

Three Months Ended
September 30,

 

 

Nine Months Ended
September 30,

 

 

 

2025

 

 

2024

 

 

2025

 

 

2024

 

Beginning balance

 

$

136

 

 

$

136

 

 

$

136

 

 

$

130

 

Increases

 

 

9

 

 

 

11

 

 

 

36

 

 

 

37

 

Revenue earned

 

 

(9

)

 

 

(9

)

 

 

(36

)

 

 

(29

)

Ending balance

 

$

136

 

 

$

138

 

 

$

136

 

 

$

138