Consolidated Statement Of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net sales	$ 1,546	$ 1,609	$ 2,995	$ 3,217
Costs and expenses
Cost of sales	1,313	1,373	2,563	2,753
Selling, general and administrative expenses	106	101	204	201
Amortization of intangibles	2	4	4	9
Restructuring charges, net	5	11	6	12
Loss on extinguishment of debt	(17)		(17)	(2)
Other income, net	7	4	8	16
Income before interest expense and income taxes	110	124	209	256
Interest expense	30	27	57	55
Income before income taxes	80	97	152	201
Income tax expense	29	36	53	67
Equity in earnings of affiliates	4	2	4	3
Net income	55	63	103	137
Less: Noncontrolling interests net income	2	4	5	15
Net income attributable to the parent company	$ 53	$ 59	$ 98	$ 122
Net income per share attributable to the parent company
Basic	$ 0.36	$ 0.36	$ 0.66	$ 0.75
Diluted	$ 0.36	$ 0.36	$ 0.66	$ 0.74
Weighted-average shares outstanding - Basic	146.6	162.1	148.0	163.4
Weighted-average shares outstanding - Diluted	147.0	163.2	148.4	164.6
Cash dividends declared per share	$ 0.06	$ 0.06	$ 0.12	$ 0.11