Operating Property and Equipment, Net

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

OPERATING PROPERTY AND EQUIPMENT, NET

OPERATING PROPERTY AND EQUIPMENT, NET

	Estimated Useful  Lives	December 31,
		2018			2017
	(In years)	(In thousands)
Land	—	$	235,272		217,885
Buildings and improvements	10 — 40	873,728			822,931
Machinery and equipment	3 — 10	845,460			797,084
Other	3 — 10	125,377			131,181
		2,079,837			1,969,081
Accumulated depreciation		(1,236,024		)	(1,192,377	)
Total		$	843,813		776,704

Depreciation expense was $101 million, $94 million and $88 million in 2018, 2017 and 2016, respectively.