XML 47 R33.htm IDEA: XBRL DOCUMENT v3.23.3
Severance (Tables)
9 Months Ended
Sep. 30, 2023
Restructuring and Related Activities [Abstract]  
Schedule of Changes in Accrued Liabilities for Severance Expenses
Changes in our accrued liabilities for severance expenses were as follows:

Severance
 (Dollars in millions)
Balance at December 31, 2022$11 
Accrued to expense21 
Payments, net(19)
Balance at September 30, 2023$13