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Discontinued Operations - Balance Sheet Items Reclassified as Held for Sale (Detail) (Held For Sale [Member], USD $)
In Millions, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Held For Sale [Member]
   
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Receivables $ 40 $ 32
Inventories 57 66
Prepaid expenses and other 1 2
Property and equipment, net 94 103
Total assets 192 203
Accounts payable 38 31
Accrued liabilities 11 14
Deferred income taxes   4
Total liabilities $ 49 $ 49