Acquisition and Investments Variable Interest Entity (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Grolsch
Variable Interest Entity
Total Assets	$ 9.0	$ 4.4
Total Liabilities	0.2	0.5
Cobra
Variable Interest Entity
Total Assets	17.4	14.2
Total Liabilities	0.2	1.1
Rocky Mountain Metal Container [Member]
Variable Interest Entity
Total Assets	71.2	70.2
Total Liabilities	4.3	3.5
Rocky Mountain Bottle Company [Member]
Variable Interest Entity
Total Assets	55.4	53.1
Total Liabilities	$ 2.3	$ 2.5