PROPERTY AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Line Items]

Carrying Value of Property and Equipment and Estimated Service Lives

Carrying Value of Property and Equipment and Estimated Service Lives

DOLLAR AMOUNTS IN MILLIONS
	RANGE OF LIVES	DECEMBER 31, 2015			DECEMBER 31, 2014
Property and equipment, at cost:
Land	N/A	$	121		$	127
Buildings and improvements	10–40	1,208			1,220
Machinery and equipment	2–25	6,675			6,706
Roads	10–20	624			609
Other	3–10	252			285
Total cost		8,880			8,947
Allowance for depreciation and amortization		(6,294		)	(6,324		)
Property and equipment, net		$	2,586		$	2,623