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Consolidated Condensed Balance Sheets (Parentheticals) - USD ($)
$ in Millions
Jun. 30, 2015
Dec. 31, 2014
Statement of Financial Position [Abstract]    
Accounts Receivable, Allowance for doubtful accounts $ 174 $ 154
Property, Accumulated Depreciation 6,029 5,959
Other Intangibles, Accumulated Amortization $ 293 $ 267
Stockholders' Equity, Number of Shares, Par Value and Other Disclosures [Abstract]    
Common stock, par value $ 1 $ 1
Common stock, shares authorized 250,000,000 250,000,000
Common stock, shares issued 110,000,000 110,000,000
Common stock, shares outstanding 78,000,000 78,000,000
Treasury Stock 32,000,000 32,000,000