Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents (variable interest entities restricted)	$ 75	$ 158
Accounts and notes receivable:
Trade (allowance for doubtful receivables)	110	94
Investments
Other investments (investments carried at fair value)	1,959	1,866
Property
Net property (variable interest entities restricted)	961	1,717
Other Assets
Other intangible assets (accumulated amortization)	4,295	3,770
Liabilities and Equity
Long-Term Debt (variable interest entities non-recourse)	$ 330	$ 487
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
Preferred Stock, Shares Outstanding	0	4,000,000
Common Stock, Shares Authorized	1,500,000,000	1,500,000,000
Common Stock, Par or Stated Value Per Share	$ 2.50	$ 2.50
Common Stock, Shares, Issued	1,242,794,836	1,242,794,836
Treasury Stock, Shares	31,661,501	125,853,161