Consolidated Statements of Operations (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Net sales	$ 2,549	$ 2,403	$ 2,414	$ 2,401	$ 2,500	$ 2,321	$ 2,441	$ 2,550	$ 9,767	$ 9,812	$ 11,063
Cost of goods sold (exclusive of depreciation and amortization)	2,203	2,093	2,074	2,098	2,162	2,036	2,077	2,202	8,468	8,477	9,743
Selling, general and administrative expenses	117	115	109	120	93	101	102	102	461	398	383
Depreciation and amortization	87	91	79	77	74	76	69	73	334	292	329
Research and development expenses	11	12	12	10	10	11	13	12	45	46	44
Interest expense and amortization of debt issuance costs	77	76	75	76	75	76	73	74	304	298	305
(Gain) loss on assets held for sale	0	(6)	0	0	0	0	2	(5)	(6)	(3)	111
Loss on extinguishment of debt					7	0	0	0	0	7	0
Restructuring and impairment, net	29	19	18	9	18	7	17	5	75	47	64
Equity in net loss of non-consolidated affiliates	0	5	3	4	1	10	3	2	12	16	13
Other income, net	(14)	(12)	(5)	(10)	(13)	(10)	(2)	(27)	(41)	(52)	(58)
Total expenses									9,652	9,526	10,934
Income before income taxes									115	286	129
Income tax provision	(15)	(3)	26	3	14	11	37	21	11	83	39
Net income	54	13	23	14	59	3	50	91	104	203	90
Net income attributable to noncontrolling interests	0	0	0	0	0	0	1	0	0	1	27
Net income attributable to our common shareholder	$ 54	$ 13	$ 23	$ 14	$ 59	$ 3	$ 49	$ 91	$ 104	$ 202	$ 63