Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]	0001418135 (http://www.sec.gov/CIK)
Inventory [Axis]	Inventory [Domain]

Inventory [Line Items]	Period [Axis]
	2016-01-01 - 2016-12-31	2015-01-01 - 2015-12-31	2014-01-01 - 2014-12-31
Raw materials	77,000,000	101,000,000
Spare parts	22,000,000	18,000,000
Work in process	5,000,000	4,000,000
Finished goods	130,000,000	123,000,000
Inventories at FIFO cost	234,000,000	246,000,000
Reduction to LIFO cost	(32,000,000)	(37,000,000)
Inventories	202,000,000	209,000,000
Inventory accounted for under the LIFO method	158,000,000	154,000,000
Effect of LIFO inventory liquidation on gross profit	5,000,000	0	0