Segment Reporting Income (Loss) From Continuing Operations (Details) In Millions, unless otherwise specified	3 Months Ended												12 Months Ended				1 Months Ended	12 Months Ended
	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)		Sep. 28, 2013 USD ($)		Jun. 29, 2013 USD ($)		Mar. 30, 2013 USD ($)		Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)		Dec. 29, 2012 USD ($)	Dec. 31, 2013 Heineken GBP (£)	Dec. 31, 2014 Heineken USD ($)	Dec. 31, 2014 Heineken GBP (£)	Dec. 31, 2014 Canada USD ($)		Dec. 31, 2013 Canada USD ($)	Dec. 29, 2012 Canada USD ($)	Dec. 31, 2014 U.S. USD ($)	Dec. 31, 2013 U.S. USD ($)	Dec. 29, 2012 U.S. USD ($)	Dec. 31, 2014 Europe USD ($)		Dec. 31, 2013 Europe USD ($)		Dec. 29, 2012 Europe USD ($)		Dec. 31, 2014 Europe Brand Impairment USD ($) intangible_asset	Dec. 31, 2013 Europe Brand Impairment USD ($)	Dec. 31, 2013 Europe Brand Impairment USD ($)	Dec. 31, 2014 MCI USD ($)	Dec. 31, 2013 MCI USD ($)	Dec. 29, 2012 MCI USD ($)	Dec. 31, 2014 Corporate USD ($)	Dec. 31, 2013 Corporate USD ($)	Dec. 29, 2012 Corporate USD ($)	Dec. 31, 2014 Eliminations USD ($)		Dec. 31, 2013 Eliminations USD ($)		Dec. 29, 2012 Eliminations USD ($)		Dec. 31, 2014 Modelo USD ($)
Segment Reporting
Net sales	$ 973.8	$ 1,168.0	$ 1,188.5	$ 816.0	$ 1,028.4		$ 1,171.2		$ 1,178.0		$ 828.5		$ 4,146.3	$ 4,206.1		$ 3,916.5				$ 1,793.9		$ 1,943.8	$ 2,036.8	$ 0	$ 0	$ 0	$ 2,200.3		$ 2,128.3		$ 1,747.5	[1]				$ 156.3	$ 137.6	$ 147.0	$ 1.1	$ 1.2	$ 1.2	$ (5.3)	[2]	$ (4.8)	[2]	$ (16.0)	[2]
Interest expense													(145.0)	(183.8)		(196.3)				0		0	0	0	0	0	0		0		0	[1]				0	0	0	(145.0)	(183.8)	(196.3)	0		0		0
Interest income													11.3	13.7		11.3				0		0	0	0	0	0	4.4		4.9		5.7	[1]				0	0	0	6.9	8.8	5.6	0		0		0
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest														654.5		592.1						363.3	423.0		539.0	510.9			34.3	[3]	136.2	[1]					(11.8)	(72.1)		(270.3)	(405.9)			0	[2]	0	[2]
Income (loss) from continuing operations before income taxes													586.3	654.5		592.1				406.8	[4]			561.8			(111.9)	[5]								(13.3)			(257.1)			0	[2]
Income tax benefit (expense)													(69.0)	(84.0)		(154.5)
Net income (loss) from continuing operations													517.3	570.5		437.6
Net (income) loss attributable to noncontrolling interests													(3.8)	(5.2)		3.9
Net income (loss) from continuing operations attributable to MCBC	93.2	(35.7)	290.7	165.3	136.9	[6]	133.4	[6]	265.6	[6]	29.4	[6]	513.5	565.3	[6]	441.5
Non-cash impairment on indefinite-lived intangible assets																																	360.0	150.9	150.9
Number of indefinite-lived intangible assets																																	2
Proceeds from divestiture of joint venture interest																	13.0	8.5	5.0																													63.2
Total special items													$ 324.4	$ 200.0		$ 81.4

[1] Includes results from our Central Europe operations from the Acquisition date of June 15, 2012.

[2] Represents inter-segment sales from the Europe segment to the MCI segment.

[3] Income from continuing operations for the year ended December 31, 2013, includes a $150.9 million non-cash impairment charge related to two indefinite-lived brand intangibles in our Europe segment. See Note 12, "Goodwill and Intangible Assets" for further discussion.

[4] Income from continuing operations for the year ended December 31, 2014, includes income of $63.2 million within special items, reflective of the agreed upon payment received from Modelo related to the termination of MMI in our Canada segment. See Note 5, "Investments" for further discussion.

[5] Loss from continuing operations for the year ended December 31, 2014, includes a $360.0 million non-cash impairment charge related to two indefinite-lived brand intangibles in our Europe segment. See Note 12, "Goodwill and Intangible Assets" for further discussion.

[6] In previous years, including interim periods within 2013, we recognized advertising costs in expense over the interim periods within a fiscal year based on the proportion of net sales volumes for the interim period in relation to the estimated annual net sales volumes under U.S. GAAP, which permits the allocation of costs across interim periods within a fiscal year when future periods benefit from the expenditure. Advertising expenses were not deferred from one fiscal year to the next. During the first quarter of 2014, we changed our method of accounting for advertising expense for interim periods such that advertising expense is recognized as incurred, effective at the beginning of the first quarter. We adopted this change as a result of management’s belief that the new method is preferable and results in a more objective measure of quarterly expense that will better support planning and resource allocation decisions by management, results in improved financial statements for investor analysis, and further aligns our treatment with that of our U.S. operations within MillerCoors. The new policy of expensing advertising costs as incurred additionally eliminates the uncertainty in estimating overall expected net sales volumes, advertising expenses, and the benefit period of the advertising on an interim basis, and conforms the Company’s interim accounting policy with that used to prepare the annual financial statements. The change will be applied retrospectively to all prior interim periods, and advertising expense for such interim periods have been recast beginning with our first quarter 2014 interim reporting period.