Condensed Consolidated Statements of Financial Position (Unaudited) (Parentheticals) - $ / shares	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 5	$ 5	$ 5
Common stock, shares authorized	750,000,000	750,000,000	750,000,000
Common stock, shares outstanding	120,249,058	119,647,149	119,564,666
Treasury shares, shares	216,523	216,523	216,523