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Discontinued Operations - Financial Information for Discontinued Operations (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Net sales | $ 71 | $ 93 | $ 106
Operating loss from discontinued operations | (13) | (22) | (13)
Impairment of assets held for sale | (3) | (86) | (23)
Loss on disposal of discontinued operations, net | (6) | (3) |
Loss before income tax | (22) | (111) | (36)
Income tax expense (benefit) | 16 | (1) | (15)
Loss from discontinued operations, net | $ (38) | $ (110) | $ (21)

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