Quarterly Results (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 1,582	$ 1,637	$ 1,710	$ 1,688	$ 1,624	$ 1,669	$ 1,800	$ 1,676	$ 6,617	$ 6,769	$ 7,224
Gross margin	223	240	248	234	212	235	259	214
Net income	108	93	90	37	43	71	96	50	328	260	315
Net income attributable to parent company	109	90	86	34	42	68	92	42	319	244	300
Preferred stock redemption premium						$ 232				$ 232
Net income (loss) per share available to parent company stockholders
Basic	$ 0.65	$ 0.56	$ 0.54	$ 0.21	$ 0.26	$ (1.16)	$ 0.58	$ 0.23	$ 1.97	$ (0.09)	$ 1.82
Diluted	$ 0.64	$ 0.52	$ 0.49	$ 0.19	$ 0.23	$ (1.16)	$ 0.44	$ 0.19	$ 1.84	$ (0.09)	$ 1.40