Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2012
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Statements of Cash Flows-Supplemental Disclosures

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   Years ended December 31,  
In millions
   2012   2011   2010  

Changes in current assets and liabilities, net of acquisitions and dispositions, were as follows:

                    

Accounts and notes receivable

   $ 87   $ (350 ) $ (195 )

Inventories

     (32 )   (225 )   (574 )

Other current assets

     (60 )   (21 )   (54 )

Accounts payable

     (256 )   208     345  

Accrued expenses

     (514 )   234     233  
               

Total

   $ (775 ) $ (154 ) $ (245 )
               

Cash payments for income taxes, net of refunds

   $ 691   $ 532   $ 312  

Cash payments for interest, net of capitalized interest

   $ 32   $ 47   $ 42  
Activity in allowance for doubtful accounts

 

 

 
   December 31,  
In millions
   2012   2011   2010  

Balance, beginning of year

   $ 12   $ 15   $ 13  

Provision for bad debts

     6     6     5  

Write-offs

     (5 )   (8 )   (3 )

Other

     —     (1 )   —  
               

Balance, end of year

   $ 13   $ 12   $ 15