v3.25.3
Revenue Recognition and Contracts with Customers (Tables)
 9 Months Ended
Sep. 30, 2025
Revenue from Contract with Customer [Abstract]  
Summary of contract assets and liabilities
The following table summarizes our contract assets and liabilities balances:
 20252024
 (Dollars in millions)
Contract assets—January 1$40 $38 
Contract assets—September 30
48 53 
Change in contract assets—Increase/(Decrease)$8 $15 
Contract liabilities—January 1$(8)$(11)
Contract liabilities—September 30
(6)(9)
Change in contract liabilities—Decrease/(Increase)$2 $2