Acquisition and Investments Schedule Of Amounts Due To And From Affiliates (Details) - USD ($) $ in Millions	Dec. 31, 2016	Oct. 10, 2016	Dec. 31, 2015
Related Party Transaction [Line Items]
Amounts due from affiliates	$ 15.1		$ 16.8
Amounts due to affiliates	2.1		10.6
Other Affiliates [Member]
Related Party Transaction [Line Items]
Amounts due from affiliates	0.0		0.6
Amounts due to affiliates	2.1		1.4
BDL [Member]
Related Party Transaction [Line Items]
Amounts due from affiliates	6.1		10.1
Amounts due to affiliates	0.0		0.0
BRI [Member]
Related Party Transaction [Line Items]
Amounts due from affiliates	9.0		4.5
Amounts due to affiliates	$ 0.0		0.0
Millercoors [Member]
Related Party Transaction [Line Items]
Amounts due from affiliates		$ 0.0	1.6
Amounts due to affiliates		$ 0.0	$ 9.2