Consolidated Statement Of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net sales	$ 1,384	$ 1,468	$ 4,379	$ 4,685
Costs and expenses
Cost of sales	1,176	1,255	3,739	4,008
Selling, general and administrative expenses	99	98	303	299
Amortization of intangibles	2	4	6	13
Restructuring charges, net	17	1	23	13
Impairment of long-lived assets		(36)		(36)
Loss on extinguishment of debt			17	2
Other income, net	9	2	17	18
Income before interest expense and income taxes	99	76	308	332
Interest expense	27	31	84	86
Income before income taxes	72	45	224	246
Income tax expense (benefit)	13	(77)	66	(10)
Equity in earnings of affiliates	2	0	6	3
Net income	61	122	164	259
Less: Noncontrolling interests net income	4	3	9	18
Net income attributable to the parent company	$ 57	$ 119	$ 155	$ 241
Net income per share attributable to the parent company
Basic	$ 0.40	$ 0.75	$ 1.06	$ 1.49
Diluted	$ 0.39	$ 0.75	$ 1.05	$ 1.48
Weighted-average shares outstanding - Basic	144.0	158.0	146.7	161.6
Weighted-average shares outstanding - Diluted	144.6	158.9	147.1	162.7
Cash dividends declared per share	$ 0.06	$ 0.06	$ 0.18	$ 0.17