Debt Obligations (Narrative) (Details) € in Millions, ¥ in Millions, £ in Millions, CAD in Millions		3 Months Ended	12 Months Ended
	Jul. 07, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2015 CAD	Dec. 31, 2014 USD ($)	Dec. 29, 2012 USD ($)	Dec. 31, 2016 GBP (£)	Dec. 31, 2016 CAD	Dec. 31, 2016 JPY (¥)	Oct. 11, 2016 USD ($)	Jul. 07, 2016 CAD	Jul. 07, 2016 EUR (€)	Sep. 18, 2015 CAD	Mar. 31, 2015 USD ($)	Mar. 31, 2015 EUR (€)	Jun. 30, 2014 CAD	May 03, 2012 USD ($)	Oct. 06, 2010 CAD
Debt Instrument [Line Items]
Leverage Ratio Following Acquisition			5.75x
Other income (expense), net			$ (29,700,000)	$ 900,000		$ (6,500,000)
Derivative, Cash Received on Hedge				16,000,000
Derivative, Notional Amount															$ 300,000,000
Other short-term borrowings		$ 2,500,000	3,500,000	2,500,000
Debt Instrument, Annual Principal Payment			200,000,000
Bank Overdrafts		18,700,000	2,600,000	18,700,000
Cash Held in Bank		39,600,000	18,000,000	39,600,000
Cash Held in Bank, Net of Bank Overdrafts		20,900,000	15,400,000	20,900,000
Short-term Debt		7,500,000	$ 7,000,000	7,500,000
Leverage Ratio In Fourth Year Following Acquisition			3.75x
July 15, 2019 through July 15, 2046 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 5,300,000,000
Maturing July 15, 2024 [Member]
Debt Instrument [Line Items]
Senior Notes | €													€ 800.0
Maturing July 15, 2023 and July 15, 2026 [Member]
Debt Instrument [Line Items]
Senior Notes | CAD												CAD 1,000.0
Three Year Tranche [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1.50%
Debt Instrument, Face Amount		3,000,000,000		3,000,000,000
Revolving Multicurrency Bank Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 750,000,000
Line Of Credit YEN [Member]
Debt Instrument [Line Items]
Short-term Debt		$ 7,500,000	7,000,000	$ 7,500,000
$300 million 2.0% notes due 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		0.95%		0.95%
$500 million 3.5% notes due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		1.57%		1.57%
CAD 500 million 2.75% Notes Due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Term				5 years	5 years
CAD 400 million 2.25% Notes Due 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Term				3 years	3 years
Two Thousand Sixteen Notes [Member]
Debt Instrument [Line Items]
Underwriting Fees Related to Long-term Debt	36,500,000
Debt Instrument, Unamortized Discount	17,700,000
Debt Issuance Cost	65,000,000
Proceeds from Debt, Net of Issuance Costs	$ 6,900,000,000
Series A notes due 2017 CAD 500 million 3.95% [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount | CAD																			CAD 500.0
Derivative Instruments, Loss Recognized in Other Comprehensive Income (Loss), Effective Portion			$ 7,800,000
Overdraft facility and Line of Credit (GBP) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1.50%
Line of Credit Facility, Maximum Borrowing Capacity | £								£ 20.0
Line of Credit Facility, Interest Rate Description			GBP LIBOR +1.5%
GBP Overdraft Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity | £								10.0
Uncommitted money market facility (GBP) [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity | £								£ 10.0
Line Of Credit CAD [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity | CAD									CAD 30.0
Line of Credit Facility, Interest Rate Description			USD Prime or CAD Prime
Overdraft Facility YEN 900M [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			0.45%
Line of Credit Facility, Maximum Borrowing Capacity | ¥										¥ 900
Line of Credit Facility, Interest Rate Description			Japan base rate + 0.45%
Overdraft Facility YEN 500M [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			0.35%
Line of Credit Facility, Maximum Borrowing Capacity | ¥										¥ 500
Line of Credit Facility, Interest Rate Description			Japan base rate + 0.35%
Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount																		$ 1,900,000,000
Proceeds from issuances of long-term debt							$ 1,880,700,000
Underwriting Fees Related to Long-term Debt							14,700,000
Discounts to Long-term Debt							$ 4,600,000
Debt Issuance Costs, Capitalized																		18,000,000
Senior Notes [Member] | $300 million 2.0% notes due 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount																		$ 300,000,000
Derivative, Cash Received on Hedge				$ 700,000
Liabilities, Fair Value Adjustment		$ 700,000
Debt instrument, interest rate percentage																		2.00%
Derivative, Notional Amount															$ 300,000,000	€ 265.0
Debt Instrument, Increase (Decrease) in Effective Cost of Borrowing			0.16%
Senior Notes [Member] | $500 million 3.5% notes due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount																		$ 500,000,000
Derivative, Cash Received on Hedge				18,100,000
Liabilities, Fair Value Adjustment		18,100,000		7,300,000
Debt instrument, interest rate percentage																		3.50%
Debt Instrument, Increase (Decrease) in Effective Cost of Borrowing			0.56%
Senior Notes [Member] | $1.1 billion 5.0% notes due 2042 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount																		$ 1,100,000,000
Debt instrument, interest rate percentage																		5.00%
Senior Notes [Member] | CAD 500 million 2.75% Notes Due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount | CAD														CAD 500.0
Debt instrument, interest rate percentage														2.75%
Debt Instrument, Increase (Decrease) in Effective Cost of Borrowing			0.65%
Senior Notes [Member] | CAD 400 million 2.25% Notes Due 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount | CAD														CAD 400.0
Debt instrument, interest rate percentage														2.25%
Debt Instrument, Increase (Decrease) in Effective Cost of Borrowing			0.16%
Senior Notes [Member] | Series A notes due 2017 CAD 500 million 3.95% [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount | CAD																			CAD 500.0
Debt instrument, interest rate percentage																			3.95%
Debt Instrument, Increase (Decrease) in Effective Cost of Borrowing			0.23%
Forward Starting Interest Rate Swap [Member]
Debt Instrument [Line Items]
Derivative, Notional Amount | CAD																	CAD 600.0
Derivative Instruments, Loss Recognized in Other Comprehensive Income (Loss), Effective Portion				29,500,000	CAD 39.2
Interest Income [Member] | Millercoors [Member]
Debt Instrument [Line Items]
Interest Income, Deposits with Financial Institutions			$ 19,000,000	0
Lenders Party Thereto and Citibank [Member] | Millercoors [Member] | Three Year Tranche [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount											$ 2,500,000,000
Lenders Party Thereto and Citibank [Member] | Millercoors [Member] | Bridge Loan and Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 12,300,000,000		12,300,000,000
Lenders Party Thereto and Citibank [Member] | Millercoors [Member] | Three Year Tranche [Member] | Three Year Tranche [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount											1,000,000,000
Amortization of Financing Costs			600,000
Lenders Party Thereto and Citibank [Member] | Millercoors [Member] | Five Year Tranche [Member] | Three Year Tranche [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount											$ 1,500,000,000
Lenders Party Thereto and Citibank [Member] | Interest expense, net | Millercoors [Member] | Three Year Tranche [Member]
Debt Instrument [Line Items]
Debt Issuance Cost			8,700,000
Other Financing Costs and Amortization of Financing Costs			$ 6,700,000	$ 100,000