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Note 9: Commitments and Contingencies (Detail) (USD $)
In Millions, unless otherwise specified
1 Months Ended
Mar. 31, 2012
Jun. 30, 2012
May 02, 2012
SiteContingencyNumberOfSitesWithHazardousSubstances   8  
ThirdPartyDefendantsNamedInPassaicRiverCleanUpCostRecoverySuit   300  
Guarantor Obligations, Maximum Exposure, Undiscounted   $ 24  
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds 23.8 41.0 19.0
Sale Leaseback Transaction, Lease Terms one    
Sale Leaseback Transaction, Deferred Gain, Gross   35  
Loss Contingency, Estimate of Possible Loss   63  
Financial Standby Letter of Credit [Member]
     
Guarantor Obligations, Maximum Exposure, Undiscounted   114  
Bank Guarantee and Letter of Credit [Member]
     
Guarantor Obligations, Maximum Exposure, Undiscounted   14  
Surety Bond [Member]
     
Guarantor Obligations, Maximum Exposure, Undiscounted   23  
Cash and Investment In Trust [Member]
     
Guarantor Obligations, Maximum Exposure, Undiscounted   $ 33