Debt Acquisition and Other (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
	Oct. 11, 2016	Sep. 30, 2016	Sep. 30, 2016	Dec. 31, 2015	Dec. 16, 2015
Line of Credit Facility [Line Items]
Revolving credit facility, maximum borrowing capacity		$ 750.0	$ 750.0
MillerCoors | Revolving Multicurrency Bank Credit Facility [Member]
Line of Credit Facility [Line Items]
Leverage Ratio Following Acquisition			5.75x
Leverage Ratio In Fourth Year Following Acquisition			3.75x
Lenders Party Thereto and Citibank | MillerCoors | Bridge Loan
Line of Credit Facility [Line Items]
Debt instrument, term			364 days
Bridge Loan, Maximum Borrowing Capacity					$ 9,300.0
Bridge Loan		6,800.0	$ 6,800.0
Lenders Party Thereto and Citibank | MillerCoors | MillerCoors Acquisition Term Loan [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount				$ 3,000.0
Lenders Party Thereto and Citibank | MillerCoors | Other income (expense), net [Member] | Bridge Loan
Line of Credit Facility [Line Items]
Other Financing Costs and Amortization of Financing Costs		24.8	63.4
Lenders Party Thereto and Citibank | MillerCoors | Interest Expense [Member] | MillerCoors Acquisition Term Loan [Member]
Line of Credit Facility [Line Items]
Other Financing Costs and Amortization of Financing Costs		1.9	$ 5.6
Lenders Party Thereto and Citibank | MillerCoors | Three Year Tranche [Member] | MillerCoors Acquisition Term Loan [Member]
Line of Credit Facility [Line Items]
Debt instrument, term			3 years
Debt Instrument, Face Amount		1,500.0	$ 1,500.0
Lenders Party Thereto and Citibank | MillerCoors | Five Year Tranche [Member] | MillerCoors Acquisition Term Loan [Member]
Line of Credit Facility [Line Items]
Debt instrument, term			5 years
Debt Instrument, Face Amount		$ 1,500.0	$ 1,500.0
Subsequent Event [Member] | MillerCoors Acquisition Term Loan [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.50%
Debt Instrument, Description of Variable Rate Basis	LIBOR
Subsequent Event [Member] | Lenders Party Thereto and Citibank | MillerCoors | MillerCoors Acquisition Term Loan [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount	$ 2,500.0
Subsequent Event [Member] | Lenders Party Thereto and Citibank | MillerCoors | Three Year Tranche [Member] | MillerCoors Acquisition Term Loan [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount	1,000.0
Subsequent Event [Member] | Lenders Party Thereto and Citibank | MillerCoors | Five Year Tranche [Member] | MillerCoors Acquisition Term Loan [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount	$ 1,500.0