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Consolidated Condensed Balance Sheets (Parentheticals) (USD $)
In Millions, except Per Share data, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Statement of Financial Position [Abstract]    
Allowance for Doubtful Accounts Receivable, Current $ 75 $ 73
Accumulated depreciation 6,369 6,278
Other Intangibles, Accumulated Amortization $ 243 $ 237
Stockholders' Equity, Number of Shares, Par Value and Other Disclosures [Abstract]    
Common Stock, Par or Stated Value Per Share $ 1 $ 1
Common Stock, Shares Authorized 250 250
Common Stock, Shares, Issued 109 109
Common Stock, Shares, Outstanding 77 77
Treasury Stock, Shares 32 32