Consolidated Statements of Equity (Parentheticals) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Stockholders' Equity [Abstract]
Treasury shares	0.2	0.1	0.1
Venezuela noncontrolling interest adjustment			$ 2.1
Common Shares, $1.25 Par Value	$ 1.25	$ 1.25	$ 1.25