Property, Plant and Equipment

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

	2017									2016
(In millions)	Owned			Capital Leases			Total			Owned			Capital Leases			Total
Property, plant and equipment, at cost:
Land	$	433		$	—		$	433		$	397		$	—		$	397
Buildings	2,589			30			2,619			2,288			35			2,323
Machinery and equipment	13,403			46			13,449			12,232			46			12,278
Construction in progress	721			—			721			887			—			887
	17,146			76			17,222			15,804			81			15,885
Accumulated depreciation	(10,047		)	(31		)	(10,078		)	(9,102		)	(23		)	(9,125		)
	7,099			45			7,144			6,702			58			6,760
Spare parts	307			—			307			280			—			280
	$	7,406		$	45		$	7,451		$	6,982		$	58		$	7,040

The range of useful lives of property used in arriving at the annual amount of depreciation are as follows: buildings and improvements, 3 to 45 years; machinery and equipment, 3 to 40 years.