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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

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