Consolidated Balance Sheets (Parentheticals) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current Assets
Cash and cash equivalents (variable interest entities restricted)	$ 190	$ 147
Accounts and notes receivable:
Trade (allowance for doubtful receivables)	110	148
Investments
Other investments (investments carried at fair value)	2,009	2,056
Property
Net property (variable interest entities restricted)	2,726	2,646
Other Assets
Other intangible assets (accumulated amortization)	3,737	3,270
Liabilities and Equity
Long-Term Debt (variable interest entities non-recourse)	$ 1,229	$ 1,360
Stockholders' Equity
Preferred stock, series A par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, series A liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Preferred stock issued, shares	4,000,000	4,000,000
Common Stock, Shares Authorized	1,500,000,000	1,500,000,000
Common Stock, Par Value	$ 2.50	$ 2.50
Common Stock, Shares, Issued	1,242,763,276	1,221,557,253
Treasury Stock, Shares	85,168,571	8,152,030