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OPERATING PROPERTY AND EQUIPMENT, NET (Tables)
 12 Months Ended
Dec. 31, 2024
Property, Plant and Equipment [Abstract]  
Schedule of Operating Property and Equipment, Net
 
Estimated Useful Lives (In years)
December 31,
(Dollars in millions)
20242023
Land—$230 $227 
Buildings and improvements
1 — 40
1,124 1,082 
Machinery and equipment
2 — 10
1,322 1,219 
Other
1 — 30
164 200 
2,840 2,728 
Accumulated depreciation(1,656)(1,511)
Operating property and equipment, net$1,184 $1,217 
(In millions)
202420232022
Operating property and equipment depreciation expense (1)
$203 $228 $182 
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(1)During 2023 and 2022, we recorded asset impairments of $35 million and $20 million, respectively, related to a SCS customer bankruptcy.