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Note 14: Guarantees (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
GuaranteeTermForProductAndShortTermEquipmentLeasingArrangements 90  
GuaranteeTermForLongTermEquipmentLeasingArrangements five  
GuaranteesRecordedAsShortTermBorrowingsCurrentPortionOfLongTermDebt $ 38  
Extended Product Warranty Accrual, Payments 280 305
DIP Credit Agreement [Member]
   
Guarantor Obligations, Current Carrying Value 20  
Customer Related Performance Guarantees [Member]
   
Guarantor Obligations, Maximum Exposure, Undiscounted 19  
Third Party and Subsidiaries Financial Guarantees [Member]
   
Guarantor Obligations, Maximum Exposure, Undiscounted 100  
Guarantor Obligations, Current Carrying Value 83  
Parent Guarantee [Member]
   
Guarantor Obligations, Current Carrying Value 45  
Credit Agreement [Member]
   
Guarantor Obligations, Maximum Exposure, Undiscounted $ 75