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Segment Information (Tables)
12 Months Ended
Dec. 31, 2023
Segment Reporting [Abstract]  
Schedule of Total Revenues and Intersegment Revenues by Segment
Total revenues and intersegment revenues by segment for the years ended December 31, 2023, 2022 and 2021, consists of the following:
(Dollars in millions)202320222021
ASC$1,831 $1,733 $1,940 
IMS1,021 983 959 
Corporate & Eliminations(26)(23)(20)
Total revenues
$2,826 $2,693 $2,879 
(Dollars in millions)202320222021
ASC$25 $21 $19 
IMS
Total intersegment revenues
$26 $23 $20 
Schedule of Depreciation, Assets by Segment and EBITDA Reconciliation to Net Earnings
Depreciation by segment for the years ended December 31, 2023, 2022 and 2021, consists of the following:
(Dollars in millions)202320222021
ASC$44 $36 $33 
IMS19 19 16 
Total depreciation
$63 $55 $49 
Total assets by segment as of December 31, 2023 and 2022, consist of the following:
(Dollars in millions)20232022
ASC$2,244 $2,167 
IMS1,146 1,152 
Corporate & Eliminations531 358 
Total assets
$3,921 $3,677 
Reconciliation of reportable segment adjusted EBITDA to net earnings for the years ended December 31, 2023, 2022 and 2021, consists of the following:
(Dollars in millions)202320222021
Adjusted EBITDA
ASC$215 $199 $220 
IMS109 119 90 
Corporate & Eliminations— — — 
Total adjusted EBITDA
$324 $318 $310 
Amortization of intangibles(22)(10)(9)
Depreciation(63)(55)(49)
Restructuring costs(11)(3)(5)
Interest expense(36)(34)(35)
Deal-related transaction costs (7)(43)(5)
Other one-time non-operational events(2)(7)
Gain on sale of dispositions— 354 — 
Income tax provision(24)(120)(46)
Net earnings
$168 $405 $154