Consolidated Balance Sheets (Parentheticals) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Doubtful accounts and allowances (in Dollars)	$ 47	$ 28
Inventory reserves (in Dollars)	127us-gaap_InventoryValuationReserves	94us-gaap_InventoryValuationReserves
Accumulated depreciation (in Dollars)	$ 8,332	$ 7,865
Convertible preferred stock, par value (in Dollars per share)	$ 100
Convertible preferred stock, shares authorized	3,100us-gaap_PreferredStockSharesAuthorized
Convertible preferred stock, shares issued	2,300us-gaap_PreferredStockSharesIssued
Common stock par value (in Dollars per share)	$ 0.50	$ 0.50
Common stock, shares authorized	3,800,000,000us-gaap_CommonStockSharesAuthorized	3,800,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	1,672,000,000us-gaap_CommonStockSharesIssued	1,661,000,000us-gaap_CommonStockSharesIssued
Treasury stock, at cost, shares held	398,000,000us-gaap_TreasuryStockShares	262,000,000us-gaap_TreasuryStockShares

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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