Consolidated Balance Sheet (Parentheticals) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common Stock, Shares Authorized	500,000,000	500,000,000
Common Stock, Shares, Issued	211,056,501	224,665,395
Common Stock, Shares, Outstanding	211,046,501	222,955,853