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Discontinued Operations - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Disposed of all businesses for net proceeds	$ 7
Impairment of intangible assets excluding goodwill		56
Impairment of goodwill		486
Impairment of fixed and other assets	2	17	34
Loss on disposal of discontinued operations, net	6	3
Decorative architectural products segment with net sales		1
Operating loss		15
Write-down inventory		$ 8

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