Equity (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Treasury Stock, Value, Acquired, Cost Method	$ 30.0	$ 50.3
Stockholders' Equity, Other		(13.0)	$ 0.0
Common stock, dividends, in dollars per share, declared	$ 0.12
Treasury Stock, Shares, Acquired	0.5
Noncontrolling interest [Member]
Treasury Stock, Value, Acquired, Cost Method	$ 0.0		0.0
Stockholders' Equity, Other		0.0	$ 0.0
Ingersoll Rand Tax Matters Agreement Indemnity [Member]
Stockholders' Equity, Other		$ 13.0