Acquisition and Investments Consolidated Variable Interest Entity and Other (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Variable Interest Entity
Total assets	$ 29,341.5	$ 12,276.3
Liabilities	$ 17,719.8	5,213.2
Grolsch [Member]
Variable Interest Entity
MCBC economic Interest (as a percent)	49.00%
Total assets	$ 4.4	6.9
Liabilities	$ 0.5	3.3
Cobra
Variable Interest Entity
Interest Purchased (as a percent)	50.10%
Total assets	$ 14.2	30.2
Liabilities	$ 1.1	$ 0.9
Rocky Mountain Metal Container [Member]
Variable Interest Entity
Interest Purchased (as a percent)	50.00%
Total assets	$ 70.2
Liabilities	$ 3.5
Rocky Mountain Bottle Company [Member]
Variable Interest Entity
Interest Purchased (as a percent)	50.00%
Total assets	$ 53.1
Liabilities	$ 2.5