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PROPERTY AND EQUIPMENT
 12 Months Ended
Dec. 31, 2024
Property, Plant and Equipment [Abstract]  
PROPERTY AND EQUIPMENT
3. PROPERTY AND EQUIPMENT:
 
Property and equipment are stated at cost, less accumulated depreciation. Depreciation is generally computed under the straight-line method over the following estimated useful lives:
 
Buildings and improvements 
10 - 30 years
Operating equipment 
5 - 10 years
Office furniture and equipment 
5 - 10 years
Leasehold improvements 
Lesser of 10 - 30 years or lease term
Automotive equipment 
3 - 5 years
Property and equipment under finance leases Lease term
 
Acquired property and equipment is depreciated on a straight-line basis over the respective estimated remaining useful lives.
 
Property and equipment consisted of the following as of December 31, 2024 and 2023 (in millions):
 
 20242023
Land and improvements$73 $72 
Real estate held for development and sale16 19 
Buildings and improvements308 309 
Operating equipment904 879 
Office furniture and equipment165 149 
Leasehold improvements49 47 
Automotive equipment63 64 
Finance lease assets70 61 
Construction in progress69 90 
 1,717 1,690 
Less: accumulated depreciation(1,012)(975)
 $705 $715