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Note 9: Credit Quality of Long-term Receivables (Tables)
6 Months Ended
Jun. 30, 2011
Notes to Condensed Consolidated Financial Statements [Abstract]  
Allowance For Credit Losses On Financing Receivables [Table Text Block]
(Dollars in millions)  
Beginning balance of the reserve for credit losses and exposure    $ 42
Provision      1
Charge-offs      -
Recoveries      (8)
Other      -
Ending balance of the reserve for credit losses and exposure: individually evaluated for impairment   $ 35
Ending balance of long-term receivables: individually evaluated for impairment    $ 595
            
Financing Receivable Credit Quality Indicators [Table Text Block]
(Dollars in millions) June 30, 2011 December 31, 2010
Long-term trade accounts receivable $ 203 $ 198
Notes and leases receivable   392   416
Total long-term receivables $ 595 $ 614
            

    June 30, 2011 December 31, 2010
(Dollars in millions) Long-term trade accounts receivable Notes and leases receivable Long-term trade accounts receivable Notes and leases receivable
A - (low risk, collateralized/uncollateralized) $ 197 $ - $ 193 $ -
B - (moderate risk, collateralized/uncollateralized)   6   316   5   336
C - (high risk, collateralized/uncollateralized)   -   76   -   80
D - (in default, uncollateralized)   -   -   -   -
 Total $ 203 $ 392 $ 198 $ 416