Amount of amortization expense attributable to debt issuance costs.

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Face (par) amount of debt instrument at time of issuance.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount of income (expense) related to nonoperating activities, classified as other.

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Debt Acquisition Bridge Financing (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Sep. 30, 2017	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jul. 07, 2017	Oct. 11, 2016
Debt Instrument [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity			$ 1,100.0
Other income (expense), net			(0.1)	$ (29.7)	$ 0.9
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Issuance Costs, Gross						$ 3.4
MillerCoors Acquisition Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 3,000.0			3,000.0
Unused lines of Credit [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						$ 150.0
Term Loan Three Year Tranche [Member]
Debt Instrument [Line Items]
Debt Instrument, Term		3 years
Term Loan Three Year Tranche [Member] \| MillerCoors Acquisition Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 1,500.0			1,500.0
Term Loan Five Year Tranche [Member]
Debt Instrument [Line Items]
Debt Instrument, Term		5 years
Term Loan Five Year Tranche [Member] \| MillerCoors Acquisition Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 1,500.0			1,500.0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	5 years
Line of Credit Facility, Maximum Borrowing Capacity			$ 1,500.0
Millercoors [Member] \| Lenders Party Thereto and Citibank [Member] \| MillerCoors Acquisition Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount							$ 2,500.0
Millercoors [Member] \| Lenders Party Thereto and Citibank [Member] \| Three Year Tranche [Member] \| MillerCoors Acquisition Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount							1,000.0
Millercoors [Member] \| Lenders Party Thereto and Citibank [Member] \| Five Year Tranche [Member] \| MillerCoors Acquisition Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount							$ 1,500.0
Other income (expense), net \| Millercoors [Member] \| Bridge Loan [Member]
Debt Instrument [Line Items]
Amortization of Financing Costs				$ 63.4	$ 6.9