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OPERATING PROPERTY AND EQUIPMENT, NET
 12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
OPERATING PROPERTY AND EQUIPMENT, NET OPERATING PROPERTY AND EQUIPMENT, NET
 Estimated
Useful Lives		December 31,
 20202019
 (In years)(In thousands)
Land—$243,368 $245,034 
Buildings and improvements
10 — 40
926,230 904,567 
Machinery and equipment
3 — 10
864,941 866,654 
Other
3 — 10
104,683 125,760 
2,139,222 2,142,015 
Accumulated depreciation(1,212,164)(1,224,216)
Total$927,058 $917,799 
 
Depreciation expense related to operating property and equipment was $123 million, $118 million and $103 million in 2020, 2019 and 2018, respectively.