UNAUDITED QUARTERLY DATA (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 587	$ 616	$ 602	$ 639	$ 695	$ 704	$ 644	$ 639	$ 2,444	$ 2,682	$ 2,461
Cost of products sold (exclusive of depreciation and amortization)	513	536	540	549	579	580	581	581
Depreciation and amortization	26	25	104	28	28	28	28	27	183	111	115
Selling, general and administrative expenses	28	23	29	24	24	25	28	25	104	102	107
Restructuring charges	8	4	40	0	(1)	0	1	1	52	1	9
Other operating (income) expense	2	0	1	1	2	(9)	2	0	4	(5)	1
Interest expense	0	0	1	1	1	15	6	11	2	33	38
Other (income) expense	(15)	(1)	(1)	(1)	(24)	(21)	(3)	(4)	(18)	(52)	(21)
Income tax expense (benefit)	(117)	(1)	0	1	0	0	0	0	(117)	0	(8)
Net income (loss)	$ 142	$ 30	$ (112)	$ 36	$ 86	$ 86	$ 1	$ (2)	$ 96	$ 171	$ (30)
Income (loss) per common share:
Basic (usd per share)	$ 4.10	$ 0.86	$ (3.23)	$ 1.05	$ 2.49	$ 2.49	$ 0.03	$ (0.06)	$ 2.78	$ 4.97	$ (0.87)
Diluted (usd per share)	$ 4.04	$ 0.85	$ (3.23)	$ 1.03	$ 2.44	$ 2.45	$ 0.03	$ (0.06)	$ 2.74	$ 4.88	$ (0.87)
Weighted average common shares outstanding (in thousands):
Basic (in shares)	34,702	34,686	34,626	34,484	34,553	34,562	34,506	34,465	34,625	34,514	34,432
Diluted (in shares)	35,232	35,137	34,626	35,225	35,288	35,051	34,829	34,465	35,134	35,096	34,432
Closing price per share:
High (usd per share)	$ 18.93	$ 19.23	$ 23.22	$ 25.80	$ 33.57	$ 33.67	$ 21.77	$ 17.94
Low (usd per share)	12.15	9.90	16.67	18.47	21.02	20.36	15.92	14.46
Period-end (usd per share)	$ 18.03	$ 12.38	$ 19.05	$ 21.42	$ 22.40	$ 33.67	$ 21.76	$ 16.84