Molson Coors Beverage (TAP) 10-Q 7 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document	3 Months Ended
	Mar. 31, 2014	2-May-14	2-May-14	2-May-14	2-May-14
		Common Class A [Member]	Common Class B [Member]	Class A Exchangeable Shares [Member]	Class B Exchangeable Shares [Member]
Entity Information [Line Items]	'	'	'	'	'
Entity Registrant Name	'MOLSON COORS BREWING CO	'	'	'	'
Trading Symbol	'tap	'	'	'	'
Entity Central Index Key	'0000024545	'	'	'	'
Document Type	'10-Q	'	'	'	'
Document Period End Date	31-Mar-14	'	'	'	'
Document Fiscal Year Focus	'2014	'	'	'	'
Document Fiscal Period Focus	'Q1	'	'	'	'
Current Fiscal Year End Date	'--12-31	'	'	'	'
Amendment Flag	'false	'	'	'	'
Entity Filer Category	'Large Accelerated Filer	'	'	'	'
Entity Common Stock, Shares Outstanding	'	2,556,894	160,408,581	'	'
Entity Exchangeable, Shares Outstanding	'	'	'	2,896,941	18,896,142

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
Sales	$1,178.30	$1,184.80
Excise taxes	-362.3	-356.3
Net sales	816	828.5
Cost of goods sold	-523.2	-547.1
Gross profit	292.8	281.4
Marketing, general and administrative expenses	-263.9	-293.9
Special items, net	52.5	-1.5
Equity income in MillerCoors	122.8	117.4
Operating income (loss)	204.2	103.4
Interest income (expense), net	-35.4	-74.9
Other income (expense), net	0.8	4.3
Income (loss) from continuing operations before income taxes	169.6	32.8	[1]
Income tax benefit (expense)	-4.8	-2
Net Income (loss) from continuing operations	164.8	30.8
Income (loss) from discontinued operations, net of tax	-1.9	-0.9	[1]
Net income (loss) including noncontrolling interests	162.9	29.9
Less: Net (income) loss attributable to noncontrolling interests	0.5	-1.4
Net income (loss) attributable to Molson Coors Brewing Company	163.4	28.5	[1]
Basic net income (loss) attributable to Molson Coors Brewing Company per share:	'	'
From continuing operations (in dollars per share)	$0.90	$0.16	[1]
From discontinued operations (in dollars per share)	($0.01)	$0	[1]
Basic net income (loss) attributable to Molson Coors Brewing Company per share	$0.89	$0.16	[1]
Diluted net income (loss) attributable to Molson Coors Brewing Company per share:	'	'
From continuing operations (in dollars per share)	$0.89	$0.16	[1]
From discontinued operations (in dollars per share)	($0.01)	$0	[1]
Diluted net income (loss) attributable to Molson Coors Brewing Company per share	$0.88	$0.16	[1]
Weighted average shares - basic (in shares)	184.3	181.7
Weighted average shares - diluted (in shares)	185.5	182.9
Amounts attributable to Molson Coors Brewing Company	'	'
Net income (loss) from continuing operations	165.3	29.4	[1]
Income (loss) from discontinued operations, net of tax	-1.9	-0.9	[1]
Net income (loss) attributable to Molson Coors Brewing Company	$163.40	$28.50	[1]
[1]	Amounts have been adjusted to reflect the change in interim accounting for advertising expenses. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further discussion.

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
Net income (loss) including noncontrolling interests	$162.90	$29.90
Other comprehensive income (loss), net of tax:	'	'
Foreign currency translation adjustments	-182	-280.7
Unrealized gain (loss) on derivative instruments	14.5	13.1
Reclassification of derivative (gain) loss to income	-3.2	0.1
Pension and other postretirement benefit adjustments	0	2.4
Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income	7.6	10.6
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	1.6	-6.7
Total other comprehensive income (loss), net of tax	-161.5	-261.2
Comprehensive income (loss)	1.4	-231.3
Less: Comprehensive (income) loss attributable to noncontrolling interests	-0.5	1.4
Comprehensive income (loss) attributable to Molson Coors Brewing Company	$1.90	($232.70)

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$337.60	$442.30
Accounts receivable, net	552.1	603.6
Other receivables, net	161.3	124.4
Inventories:	'	'
Finished, net	179.6	133.2
In process	24.4	23.3
Raw materials	42.6	36.9
Packaging materials, net	16.6	11.9
Total inventories, net	263.2	205.3
Other current assets, net	123.7	111.7
Deferred tax assets	46.4	50.4
Total current assets	1,484.30	1,537.70
Properties, net	1,936.20	1,970.10
Goodwill	2,394.70	2,418.70
Other intangibles, net	6,652.30	6,825.10
Investment in MillerCoors	2,608.50	2,506.50
Deferred tax assets	15.7	38.3
Notes receivable, net	23	23.6
Other assets	251.1	260.1
Total assets	15,365.80	15,580.10
Current liabilities :	'	'
Accounts payable and other current liabilities	1,267	1,410.30
Deferred tax liabilities	167.3	138.1
Current portion of long-term debt and short-term borrowings	630.4	586.9
Discontinued operations	7.1	6.8
Total current liabilities	2,071.80	2,142.10
Long-term debt	3,162.30	3,213
Pension and post-retirement benefits	436.5	462.6
Deferred tax liabilities	932.5	911.4
Unrecognized tax benefits	56.5	92.7
Other liabilities	63.5	77.2
Discontinued operations	18	17.3
Total liabilities	6,741.10	6,916.30
Commitments and contingencies (Note 16)	'	'
Capital stock:	'	'
Preferred stock, non-voting, no par value (authorized: 25.0 shares; none issued)	0	0
Paid-in capital	3,777.60	3,747.60
Retained earnings	4,328.40	4,233.20
Accumulated other comprehensive income (loss)	-6.6	154.9
Class B common stock held in treasury at cost (7.5 shares and 7.5 shares, respectively)	-321.1	-321.1
Total Molson Coors Brewing Company stockholders' equity	8,600.90	8,638.90
Noncontrolling interests	23.8	24.9
Total equity	8,624.70	8,663.80
Total liabilities and equity	15,365.80	15,580.10
Class A common stock, voting [Member]	'	'
Capital stock:	'	'
Common stock	0	0
Class B common stock, non-voting [Member]	'	'
Capital stock:	'	'
Common stock	1.7	1.7
Class A Exchangeable Shares [Member]	'	'
Capital stock:	'	'
Exchangeable shares	108.5	108.5
Class B Exchangeable Shares [Member]	'	'
Capital stock:	'	'
Exchangeable shares	$712.40	$714.10

CONSOLIDATED_BALANCE_SHEETS_PA

CONSOLIDATED BALANCE SHEETS (PARENTHETICALS) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, except Per Share data, unless otherwise specified
Preferred Stock, Non-voting, No Par Value	$0	$0
Preferred Stock, Shares Authorized	25	25
Preferred Stock, Shares Issued	0	0
Treasury Stock, Shares	7.5	7.5
Common Class A [Member]	'	'
Common Stock, Par or Stated Value Per Share	$0.01	$0.01
Common Stock, Shares Authorized	500	500
Common Stock, Shares, Issued	2.6	2.6
Common Stock, Shares, Outstanding	2.6	2.6
Common Class B [Member]	'	'
Common Stock, Par or Stated Value Per Share	$0.01	$0.01
Common Stock, Shares Authorized	500	500
Common Stock, Shares, Issued	167.9	167.2
Class A Exchangeable Shares [Member]	'	'
Exchangeable Stock, No Par Value	$0	$0
Exchangeable Stock, Shares Issued	2.9	2.9
Exchangeable Stock, Shares Outstanding	2.9	2.9
Class B Exchangeable Shares [Member]	'	'
Exchangeable Stock, No Par Value	$0	$0
Exchangeable Stock, Shares Issued	18.9	19
Exchangeable Stock, Shares Outstanding	18.9	19

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
Cash flows from operating activities:	'	'
Net income (loss) including noncontrolling interests	$162.90	$29.90
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	81.2	80.2
Amortization of debt issuance costs and discounts	1.6	7.3
Share-based compensation	8.3	11.1
Loss (gain) sale or impairment of properties and intangibles	1.2	1.4
Deferred income taxes	0.5	1.3
Equity income in MillerCoors	-122.8	-117.4
Distributions from MillerCoors	122.8	117.4
Equity in net income of other unconsolidated affiliates	-4.2	-1.1
Distributions from other unconsolidated affiliates	11.1	11.7
Excess tax benefits from share-based compensation	-2	-1.6
Unrealized (gain) loss on foreign currency fluctuations and derivative instruments, net	-1.8	19.1
Change in current assets and liabilities and other	-111	-41.8
Net cash provided by operating activities	149.7	118.4
Cash flows from investing activities:	'	'
(Gain) loss from discontinued operations	1.9	0.9
Additions to properties	-65.3	-68.3
Proceeds from sales of properties and other assets	1.7	3.7
Investment in MillerCoors	-354.9	-331.8
Return of capital from MillerCoors	259.5	222.4
Loan repayments	2.2	2.6
Loan advances	-16.7	-2.5
Net cash used in investing activities	-173.5	-173.9
Cash flows from financing activities:	'	'
Exercise of stock options under equity compensation plans	20.2	27.2
Excess tax benefits from share-based compensation	2	1.6
Dividends paid	-68.2	-58.2
Payments for purchase of noncontrolling interest	-0.2	-0.2
Payments on long-term debt and capital lease obligations	-46.9	0
Proceeds from short-term borrowings	20.9	5.9
Payments on short-term borrowings	-12.5	-13.8
Payments on settlement of derivative instruments	-65.2	0
Net proceeds from (payments on) revolving credit facilities and commercial paper	-41.8	-1.2
Change in overdraft balances and other	111.5	3.5
Net cash used in financing activities	-80.2	-35.2
Cash and cash equivalents:	'	'
Net increase (decrease) in cash and cash equivalents	-104	-90.7
Effect of foreign exchange rate changes on cash and cash equivalents	-0.7	-21.8
Balance at beginning of year	442.3	624
Balance at end of period	337.6	511.5
Options and Sosars [Member]	'	'
Cash flows from financing activities:	'	'
Exercise of stock options under equity compensation plans	$20.20	$27.20

Basis_of_Presentation_and_Summ

Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Basis of Presentation and Summary of Significant Accounting Policies	'
	Basis of Presentation and Summary of Significant Accounting Policies
	Unless otherwise noted in this report, any description of "we", "us" or "our" includes Molson Coors Brewing Company ("MCBC" or the "Company"), principally a holding company, and its operating and non-operating subsidiaries included within our reporting segments and Corporate. Our reporting segments include: Molson Coors Canada ("MCC" or Canada segment), operating in Canada; MillerCoors LLC ("MillerCoors" or U.S. segment), which is accounted for by us under the equity method of accounting, operating in the United States ("U.S."); Molson Coors Europe (Europe segment), operating in Bosnia-Herzegovina, Bulgaria, Croatia, Czech Republic, Hungary, Montenegro, the Republic of Ireland, Romania, Serbia, Slovakia and the United Kingdom ("U.K."); and Molson Coors International ("MCI"), operating in various other countries.
	References to Central Europe reflect our operations in Bosnia-Herzegovina, Bulgaria, Croatia, Czech Republic, Hungary, Montenegro, Romania, Serbia and Slovakia, as a result of our acquisition (the "Acquisition") of StarBev Holdings S.à r.l. ("StarBev") from StarBev L.P. (the "Seller") on June 15, 2012, and the results of these operations are included within our Europe segment.
	Unless otherwise indicated, information in this report is presented in U.S. dollars ("USD" or "$") and comparisons are to comparable prior periods as noted below.
	The accompanying unaudited condensed consolidated interim financial statements reflect all adjustments which are necessary for a fair statement of the financial position, results of operations and cash flows for the periods presented in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP"). Such unaudited interim condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q pursuant to the rules and regulations of the SEC. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations.
	These unaudited condensed consolidated interim financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2013 ("Annual Report") and have been prepared on a consistent basis with the accounting policies described in Note 1 of the Notes to the Audited Consolidated Financial Statements ("Notes") included in our Annual Report. Our accounting policies did not change in the first quarter of 2014, with the exception of a change to our policy for recognizing advertising expenses in interim periods as discussed below. Additionally, in order to provide further clarity around our policy regarding the classification of special items in the unaudited condensed consolidated statements of operations, we have expanded our related disclosure as reflected below.
	Special Items
	Our special items represent charges incurred or benefits realized that either we do not believe to be indicative of our core operations, or we believe are significant to our current operating results warranting separate classification; specifically, such items are considered to be one of the following:
	•infrequent or unusual items,
	•impairment or asset abandonment-related losses,
	•restructuring charges and other atypical employee-related costs, or
	•fees on termination of significant operating agreements and gains (losses) on disposal of investments.
	The items classified as special items are not necessarily non-recurring, however, they are deemed to be incremental to income earned or costs incurred by the Company in conducting normal operations, and therefore are presented separately from other components of operating income.
	Our Fiscal Year
	On November 14, 2013, our Board of Directors approved a resolution to change MCBC's fiscal year from a 52/53 week fiscal year to a calendar year. As such, our 2013 fiscal year was extended from December 28, 2013, to December 31, 2013, with subsequent fiscal years beginning on January 1 and ending on December 31 of each year. Beginning January 1, 2014, quarterly results reflect the three month periods ending March 31, June 30, September 30, and December 31. This change aligned our fiscal year and interim reporting periods with our Central Europe business and MillerCoors, which were already following a monthly fiscal reporting calendar. Unless otherwise indicated, and with the exception of the Central Europe business and MillerCoors, the first quarter of 2013 and the three months ended March 30, 2013 refer to the thirteen weeks ended March 30, 2013. The first quarter of 2014 refers to the three months ended March 31, 2014. Fiscal year 2014 refers to the 12 months ending December 31, 2014, and fiscal year 2013 refers to the period from December 30, 2012, to December 31, 2013. The impact of the additional days in fiscal year 2013 is immaterial to the unaudited condensed consolidated financial statements.
	The results of operations for the three months ended March 31, 2014, are not necessarily indicative of the results that may be achieved for the full fiscal year.
	Change in Interim Period Accounting for Advertising Expenses
	In previous years' interim periods, including the quarterly periods within fiscal year 2013, we recognized advertising costs in expense during the fiscal year based on the proportion of sales volumes for the interim period in relation to the estimated annual sales volumes. U.S. GAAP permits the allocation of advertising 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. Effective beginning the first quarter of fiscal year 2014, we changed our method of accounting for advertising expenses for interim periods such that advertising expense is now recognized as incurred. 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 sales volumes, advertising expenses, and the benefit period of the advertising on an interim basis, and conforms our interim accounting policy with that used to prepare the annual financial statements. The change has been applied retrospectively to all prior interim periods presented. The quarterly impact of the change in accounting policy on marketing, general and administrative expenses and the associated impact on income tax expense, as well as the impact to certain subtotals and diluted earnings per share within our unaudited condensed consolidated statement of operations, is as follows:
		Three Months Ended						Three Months Ended						Three Months Ended						Three Months Ended
		30-Mar-13						29-Jun-13						28-Sep-13						31-Dec-13
		As Reported			As Adjusted			As Reported			As Adjusted			As Reported			As Adjusted			As Reported			As Adjusted
		(In millions)
	Marketing, general and administrative expenses	$	(285.3	)	$	(293.9	)	$	(304.3	)	$	(319.5	)	$	(307.8	)	$	(290.8	)	$	(296.4	)	$	(289.6	)
	Income (loss) from continuing operations before income taxes	$	41.4		$	32.8		$	312.4		$	297.2		$	155.4		$	172.4		$	145.3		$	152.1
	Income tax benefit (expense)	$	(3.5	)	$	(2.0	)	$	(34.1	)	$	(30.0	)	$	(32.7	)	$	(37.2	)	$	(13.7	)	$	(14.8	)
	Net income (loss) attributable to Molson Coors Brewing Company	$	35.6		$	28.5		$	278.4		$	267.3		$	121.8		$	134.3		$	131.5		$	137.2
	Diluted net income (loss) attributable to Molson Coors Brewing Company per share	$	0.2		$	0.16		$	1.51		$	1.45		$	0.66		$	0.73		$	0.71		$	0.74
	As noted above, under our historical treatment, advertising expenses were not deferred from one fiscal year to the next. Therefore, the change in interim accounting had no impact on full year consolidated results.
	The following table shows the impact to income (loss) from continuing operations before income taxes by segment as a result of the change in accounting policy for advertising expense. The full impact of this change in presentation is reflected within marketing, general and administrative expenses.
	Income (loss) from continuing operations before income taxes by segment:
		Three Months Ended						Three Months Ended						Three Months Ended						Three Months Ended
		30-Mar-13						29-Jun-13						28-Sep-13						31-Dec-13
		As Reported			As Adjusted			As Reported			As Adjusted			As Reported			As Adjusted			As Reported			As Adjusted
		(In millions)
	Canada	$	36.4		$	28.4		$	137.3		$	128.6		$	128.7		$	143.6		$	60.9		$	62.7
	U.S.	$	117.4		$	117.4		$	172.6		$	172.6		$	148.3		$	148.3		$	100.7		$	100.7
	Europe	$	(3.7	)	$	(5.2	)	$	81.6		$	75.8		$	(69.5	)	$	(67.4	)	$	25.9		$	31.1
	MCI	$	(6.1	)	$	(5.2	)	$	(3.3	)	$	(4.0	)	$	(2.4	)	$	(2.4	)	$	—		$	(0.2	)
	Corporate	$	(102.6	)	$	(102.6	)	$	(75.8	)	$	(75.8	)	$	(49.7	)	$	(49.7	)	$	(42.2	)	$	(42.2	)
	As noted above, under our historical treatment, advertising expenses were not deferred from one fiscal year to the next. Therefore, the change in interim accounting had no impact on full year segment results.
	Foreign Currency Translation Tax Adjustment
	During the third quarter of 2013, we identified that we had incorrectly recorded tax adjustments related to certain foreign currency movements in the financial statements for both the first and second quarters of 2013 that misstated non-current deferred tax assets, accumulated other comprehensive income (loss), and comprehensive income by immaterial amounts. We have revised the foreign currency translation adjustments, net of tax, included in other comprehensive income (loss) and comprehensive income (loss) in the unaudited condensed consolidated statement of comprehensive income (loss) for the three months ended March 30, 2013, and will revise in the unaudited condensed consolidated statements of comprehensive income (loss) for the three and six months ended June 29, 2013, in future filings. These errors were corrected in the third quarter of 2013 and therefore had no impact on the unaudited condensed consolidated balance sheet as of December 31, 2013. Note that the as adjusted amounts below also reflect the adjustments related to the change in interim accounting for advertising expense as discussed above.
		Three Months Ended						Three Months Ended						Six Months Ended
		30-Mar-13						29-Jun-13						29-Jun-13
		As Reported			As Adjusted			As Reported			As Adjusted			As Reported			As Adjusted
		(In millions)
	Foreign currency translation adjustments, net of tax	$	(261.3	)	$	(280.7	)	$	(79.4	)	$	(113.6	)	$	(340.7	)	$	(394.3	)
	Total other comprehensive income (loss), net of tax	$	(241.8	)	$	(261.2	)	$	(52.5	)	$	(86.7	)	$	(294.3	)	$	(347.9	)
	Comprehensive income (loss) attributable to Molson Coors Brewing Company	$	(206.2	)	$	(232.7	)	$	225.9		$	180.6		$	19.7		$	(52.1	)

New_Accounting_Pronouncements

New Accounting Pronouncements	3 Months Ended
	Mar. 31, 2014
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]	'
New Accounting Pronouncements	'
	New Accounting Pronouncements
	Adoption of New Accounting Pronouncements
	Joint and Several Liability Arrangements
	In February 2013, the FASB issued authoritative guidance for the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date. The guidance was effective for our quarter ended March 31, 2014. The adoption of this guidance did not have an impact on our financial position or results from operations.
	Cumulative Translation Adjustment
	In March 2013, the FASB issued authoritative guidance on a parent's accounting for the cumulative translation adjustment upon derecognition of certain subsidiaries or groups of assets within a foreign entity or of an investment in a foreign entity. This update also resolves the diversity in practice for the treatment of business combinations achieved in stages (sometimes also referred to as step acquisitions) involving a foreign entity. The guidance was effective for our quarter ended March 31, 2014. The adoption of this guidance did not have an impact on our financial position or results from operations.
	Liquidation Basis of Accounting
	In April 2013, the FASB issued authoritative guidance to clarify when it is appropriate to apply the liquidation basis of accounting. Additionally, the update provides guidance for recognition and measurement of assets and liabilities and requirements for financial statements prepared using the liquidation basis of accounting. Under the amendment, entities are required to prepare their financial statements under the liquidation basis of accounting when a liquidation becomes imminent. The guidance was effective for our quarter ended March 31, 2014. The adoption of this guidance did not have an impact on our financial position or results from operations.
	Presentation of Unrecognized Tax Benefits
	In July 2013, the FASB issued authoritative guidance related to the presentation of unrecognized tax benefits. The update requires that the entity present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, as a reduction to a deferred tax asset for a net operating loss carryforward or a tax credit carryforward in the statement of financial position. The guidance does not apply to the extent that a net operating loss carryforward or tax credit carryforward at the reporting date is not available under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position. The guidance was effective for our quarter ended March 31, 2014. As a result of adopting this guidance, we have presented deferred tax assets net of unrecognized tax benefits, as appropriate, in the unaudited condensed consolidated balance sheets. The adoption of this guidance impacted the classification of our outstanding unrecognized tax benefits and resulted in a reclassification of $37.8 million from the unrecognized tax benefits line item within the unaudited condensed consolidated balance sheet as of March 31, 2014.
	New Accounting Pronouncements Not Yet Adopted
	Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity
	In April 2014, the FASB issued authoritative guidance related to reporting discontinued operations and disclosures of disposals of components of an entity. The update limits discontinued operations reporting to disposals of components of an entity that represent strategic shifts that have (or will have) a major effect on an entity's operations and financial results. This update requires expanded disclosures related to assets, liabilities, revenues and expenses of discontinued operations. This update also requires the disclosure of pretax profit or loss and the financial effects of significant disposals that do not qualify for discontinued operations reporting. The guidance is effective for annual reporting periods beginning on or after December 15, 2014, and interim reporting periods thereafter. We do not anticipate that this guidance will have an impact on our financial position or results of operations.

Segment_Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Segment Reporting	'
	Segment Reporting
	Our reporting segments are based on the key geographic regions in which we operate, which are the basis on which our chief operating decision maker evaluates the performance of the business. Our reporting segments consist of Canada, the U.S., Europe and MCI. Corporate is not a segment and includes interest and certain other general and administrative costs that are not allocated to any of the operating segments. No single customer accounted for more than 10% of our consolidated or segmented sales for the three months ended March 31, 2014, and March 30, 2013. Net sales represent sales to third-party external customers. Inter-segment sales revenues and income (loss) from continuing operations before income taxes, other than those to MillerCoors (see Note 4, "Investments" for additional detail), are insignificant and eliminated in consolidation.
	The following table presents net sales by segment:
		Three Months Ended
		March 31, 2014			March 30, 2013
		(In millions)
	Canada	$	347.1		$	395.6
	Europe	437.6			406.4
	MCI	32.2			27
	Corporate	0.3			0.3
	Eliminations(1)	(1.2		)	(0.8		)
	Consolidated	$	816		$	828.5
	-1	Represents inter-segment sales from the Europe segment to the MCI segment.
	The following table presents income (loss) from continuing operations before income taxes by segment:
		Three Months Ended
		March 31, 2014			March 30, 2013(1)
		(In millions)
	Canada	$	88.3		$	28.4
	U.S.	122.8			117.4
	Europe	27			(5.2		)
	MCI	(3.0		)	(5.2		)
	Corporate	(65.5		)	(102.6		)
	Consolidated	$	169.6		$	32.8
	-1	Amounts have been adjusted to reflect the change in interim accounting for advertising expenses. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further discussion.
	The following table presents total assets by segment:
		As of
		March 31, 2014			December 31, 2013
		(In millions)
	Canada	$	5,771.70		$	6,103.20
	U.S.	2,608.50			2,506.50
	Europe	6,678.80			6,547.70
	MCI	78.3			83.3
	Corporate	228.5			339.4
	Consolidated	$	15,365.80		$	15,580.10

Investments

Investments	3 Months Ended
	Mar. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]	'
Investments	'
	Investments
	Our investments include both equity method and consolidated investments. Those entities identified as variable interest entities ("VIEs") have been evaluated to determine whether we are the primary beneficiary. The VIEs included under "Consolidated VIEs" below are those for which we have concluded that we are the primary beneficiary and accordingly, consolidate these entities. None of our consolidated VIEs held debt as of March 31, 2014, or December 31, 2013. We have not provided any financial support to any of our VIEs during the quarter that we were not previously contractually obligated to provide. Amounts due to and due from our equity method investments are recorded as affiliate accounts payable and affiliate accounts receivable.
	Authoritative guidance related to the consolidation of VIEs requires that we continually reassess whether we are the primary beneficiary of VIEs in which we have an interest. As such, the conclusion regarding the primary beneficiary status is subject to change and we continually evaluate circumstances that could require consolidation or deconsolidation. As of March 31, 2014, and December 31, 2013, our consolidated VIEs are Cobra Beer Partnership, Ltd. ("Cobra U.K.") and Grolsch. Our unconsolidated VIEs are Brewers' Retail Inc. ("BRI"), Brewers' Distributor Ltd. ("BDL") and Molson Modelo Imports L.P. ("MMI"). See further discussion below.
	Equity Investments
	Investment in MillerCoors
	Summarized financial information for MillerCoors is as follows:
	Condensed Balance Sheets
		As of
		March 31, 2014			December 31, 2013
		(In millions)
	Current assets	$	995.1		$	798.4
	Non-current assets	8,958.70			8,989.30
	Total assets	$	9,953.80		$	9,787.70
	Current liabilities	$	933.4		$	950.1
	Non-current liabilities	1,288.60			1,346.20
	Total liabilities	2,222.00			2,296.30
	Noncontrolling interests	20.9			20.7
	Owners' equity	7,710.90			7,470.70
	Total liabilities and equity	$	9,953.80		$	9,787.70
	The following represents our proportionate share in MillerCoors' equity:
		As of
		March 31, 2014			December 31, 2013
		(In millions, except percentages)
	MillerCoors owners' equity	$	7,710.90		$	7,470.70
	MCBC economic interest	42		%	42		%
	MCBC proportionate share in MillerCoors' equity	3,238.60			3,137.70
	Difference between MCBC contributed cost basis and proportionate share of the underlying equity in net assets of MillerCoors(1)	(665.1		)	(666.2		)
	Accounting policy elections	35			35
	Investment in MillerCoors	$	2,608.50		$	2,506.50
	-1	Our net investment in MillerCoors is based on the carrying values of the net assets contributed to the joint venture which is less than our proportionate share of underlying equity (42%) of MillerCoors (contributed by both Coors Brewing Company ("CBC") and Miller Brewing Company ("Miller")). This basis difference, with the exception of certain non-amortizing items (goodwill, land, etc.), is being amortized as additional equity income over the remaining useful lives of the contributed long-lived amortizing assets.
	Results of Operations
		Three Months Ended
		March 31, 2014			March 31, 2013
		(In millions)
	Net sales	$	1,790.40		$	1,788.30
	Cost of goods sold	(1,094.1		)	(1,088.7		)
	Gross profit	$	696.3		$	699.6
	Operating income	$	297.5		$	274.5
	Net income attributable to MillerCoors	$	291.2		$	271.9
	The following represents our proportionate share in net income attributable to MillerCoors reported under the equity method:
		Three Months Ended
		March 31, 2014			March 30, 2013
		(In millions, except percentages)
	Net income attributable to MillerCoors	$	291.2		$	271.9
	MCBC economic interest	42		%	42		%
	MCBC proportionate share of MillerCoors net income	122.3			114.2
	Amortization of the difference between MCBC contributed cost basis and proportionate share of the underlying equity in net assets of MillerCoors	1.1			1.2
	Share-based compensation adjustment(1)	(0.6		)	2
	Equity income in MillerCoors	$	122.8		$	117.4
	-1	The net adjustment is to eliminate all share-based compensation impacts related to pre-existing SABMiller plc equity awards held by former Miller employees employed by MillerCoors.
	The following table summarizes our transactions with MillerCoors:
		Three Months Ended
		March 31, 2014			March 30, 2013
		(In millions)
	Beer sales to MillerCoors	$	2.6		$	4.4
	Beer purchases from MillerCoors	$	7.1		$	3.1
	Service agreement costs and other charges to MillerCoors	$	0.4		$	0.6
	Service agreement costs and other charges from MillerCoors	$	0.2		$	0.2
	As of March 31, 2014, and December 31, 2013, we had $5.2 million and $4.4 million of net payables due to MillerCoors, respectively.
	Consolidated VIEs
	The following summarizes the assets and liabilities of our consolidated VIEs (including noncontrolling interests):
		As of
		March 31, 2014						December 31, 2013
	Total Assets			Total Liabilities			Total Assets		Total Liabilities
	(In millions)
Grolsch	$	6.9		$	2.3		$	5.6	$	1.7
Cobra U.K.	$	31.7		$	0.4		$	36.5	$	1.9
Termination of Modelo Molson Imports, L.P. Operations
On November 5, 2013, Anheuser-Busch Inbev ("ABI") and MCBC entered into an agreement providing for the accelerated termination of MMI, a 50% - 50% joint venture with Grupo Modelo S.A.B. de C.V. ("Modelo"), which provided for the import, distribution, and marketing of the Modelo beer brand portfolio across all Canadian provinces and territories. The joint venture, accounted for under the equity method of accounting, was originally a 10 year agreement ending January 1, 2018. In June 2013, ABI completed its combination with Modelo, including Modelo’s interest in MMI. Following negotiations with ABI, MCC consented to change the effective termination date of the agreement from January 1, 2018 to February 28, 2014, upon successful close and completion of the transition period, at which time MCC would receive payment from Modelo for the early termination of the original agreement. In conjunction with these negotiations, ABI also agreed that we will continue to represent the Modelo brands in the U.K. and Japan through the end of 2014.
The transition period was successfully completed on February 28, 2014, at which time we recognized income of $63.2 million (CAD 70.0 million) within special items, reflective of the agreed upon payment received from Modelo. Additionally we recorded a charge of $4.9 million representing the accelerated amortization of the remaining carrying value of our definite-lived intangible asset associated with the agreement. In accordance with the termination agreement, MMI continued to operate in its historical capacity through the end of the transition period. Effective end of day on February 28, 2014, MMI ceased all operations and will be dissolved during the second quarter of 2014. As a result, our first quarter 2014 results reflect our proportionate ownership interest of the MMI activity during the first quarter of 2014 through end of day February 28, 2014. During the three months ended March 31, 2014, and March 30, 2013, we recognized equity earnings of $0.7 million and $0.6 million, respectively, under the MMI arrangement within cost of goods sold. In addition, during the three months ended March 31, 2014, and March 30, 2013, MCC recognized marketing and administrative cost recoveries related to the promotion, sale and distribution of Modelo products under our agency and services agreement with MMI of $1.1 million and $2.4 million, respectively. These cost recoveries are recorded within marketing, general and administrative expenses. As of March 31, 2014 and December 31, 2013, our unaudited condensed consolidated balance sheet includes our investment in MMI of $10.1 million and $21.2 million, respectively, and an affiliate net payable to MMI of $4.5 million and $13.8 million, respectively.
In accordance with the early termination agreement, the book value of the joint venture's net assets is required to be distributed to the respective joint venture partners for the owners' proportionate ownership interest at the end of the transition period, which will occur in the second quarter of 2014. Concurrently, we will derecognize our equity investment within other non-current assets and recognize a gain (loss) within special items resulting from the excess (deficit) of the total proceeds, consisting of our proportionate ownership interest in the book value of the joint venture’s assets, over our equity investment and joint venture related net asset balances upon final distribution.

ShareBased_Payments

Share-Based Payments	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Share-Based Payments	'
	Share-Based Payments
	During the first quarter of 2014 and 2013, we recognized share-based compensation expense related to the following Class B common stock awards to certain directors, officers and other eligible employees, pursuant to the Molson Coors Brewing Company Incentive Compensation Plan ("Incentive Compensation Plan"): restricted stock units ("RSU"), deferred stock units ("DSU"), performance share units ("PSU"), performance units ("PU") and stock options. The settlement amount of the PSUs is determined based on market and performance metrics, which include our total shareholder return performance relative to the S&P 500 and specified internal performance metrics designed to drive greater shareholder return. PSU compensation expense is based on a fair value assigned to the market metric using a Monte Carlo model, which will remain constant throughout the vesting period of three years, and a performance multiplier, which will vary due to changing estimates of the performance metric condition.
	The following table summarizes share-based compensation expense:
		Three Months Ended
		March 31, 2014				March 30, 2013
		(In millions)
	Pretax compensation expense	$	8.3			$	11.1
	Tax benefit	(2.7		)		(3.4		)
	After-tax compensation expense	$	5.6			$	7.7
	As of March 31, 2014, there was $26.7 million of total unrecognized compensation cost from all share-based compensation arrangements granted under the Incentive Compensation Plan, related to unvested shares. This compensation expense is expected to be recognized over a weighted-average period of 1.6 years.
	The following table represents the summary of stock options and stock-only stock appreciation rights ("SOSAR") outstanding as of March 31, 2014, and the activity during the three months ended March 31, 2014:
		Shares outstanding		Weighted-average		Weighted-average		Aggregate
				exercise price per		remaining		intrinsic value
				share		contractual life
						(years)
		(In millions, except per share amounts and years)
	Outstanding as of December 31, 2013	3.5		$43.41		4.57		$	45.1
	Granted	0.2		$58.24
	Exercised	-0.6		$42.19
	Forfeited	-0.1		$44.24
	Outstanding as of March 31, 2014	3		$44.46		4.73		$	43.2
	Exercisable at March 31, 2014	2.6		$43.66		4.03		$	39.3
	The total intrinsic value of stock options exercised was $8.9 million during each of the three months ended March 31, 2014, and March 30, 2013. During the three months ended March 31, 2014, and March 30, 2013, cash received from stock option exercises was $20.2 million and $27.2 million, respectively, and the total tax benefit for the tax deductions from these stock option exercises and other awards was $2.0 million and $1.6 million, respectively.
	The following table represents non-vested RSUs, DSUs, PSUs and PUs as of March 31, 2014, and the activity during the three months ended March 31, 2014:
		RSUs and DSUs					PUs				PSUs
		Units			Weighted-average		Units			Weighted-average	Units	Weighted-average
					grant date fair value					fair value		grant date fair value
					per unit					per unit		per unit
		(In millions, except per unit amounts)
	Non-vested as of December 31, 2013	0.7			$42.08		1			$2.87	0.2	$43.10
	Granted	0.2			$58.17		—			$—	0.2	$58.69
	Vested	(0.2	)		$40.27		(0.5	)		$6.16	—	$—
	Forfeited	—			$—		—			$—	—	$—
	Non-vested as of March 31, 2014	0.7			$46.55		0.5			$0.43	0.4	$50.44
	The weighted-average fair value per unit for the non-vested PSUs is $42.75 as of March 31, 2014.
	The fair value of each option granted in the first quarter of 2014 and 2013 was determined on the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions:
		Three Months Ended
		March 31, 2014		March 30, 2013
	Risk-free interest rate	2.29%		1.43%
	Dividend yield	2.57%		2.88%
	Volatility range	22.66%-26.57%		22.39%-25.90%
	Weighted-average volatility	25.59%		25.02%
	Expected term (years)	7.5		7.7
	Weighted-average fair market value	$12.78		$8.39
	The risk-free interest rates utilized for periods throughout the contractual life of the stock options are based on a zero-coupon U.S. Treasury security yield at the time of grant. Expected volatility is based on a combination of historical and implied volatility of our stock. The expected term of stock options is estimated based upon observations of historical employee option exercise patterns and trends of those employees granted options in the respective year.
	The fair value of the market metric for each PSU granted in the first quarter of 2014 and 2013 was determined on the date of grant using a Monte Carlo model to simulate total shareholder return for MCBC and peer companies with the following weighted-average assumptions:
		Three Months Ended
		March 31, 2014		March 30, 2013
	Risk-free interest rate	0.72%		0.33%
	Dividend yield	2.57%		2.88%
	Volatility range	12.45%-72.41%		12.18%-69.37%
	Weighted-average volatility	21.72%		21.13%
	Expected term (years)	2.82		2.83
	Weighted-average fair market value	$58.69		$43.10
	The risk-free interest rates utilized for periods throughout the expected term of the PSUs are based on a zero-coupon U.S. Treasury security yield at the time of grant. Expected volatility is based on historical volatility of our stock as well as the stock of our peer firms, as shown within the volatility range above, for a period from the grant date consistent with the expected term. The expected term of PSUs is calculated based on the grant date to the end of the performance period.
	As of March 31, 2014, there were 7.4 million shares of the Company's Class B common stock available for issuance as awards under the Incentive Compensation Plan.

Special_items

Special items	3 Months Ended
	Mar. 31, 2014
Extraordinary and Unusual Items [Abstract]	'
Special Items	'
	Special Items
	We have incurred charges or realized benefits that either we do not believe to be indicative of our core operations, or we believe are significant to our current operating results warranting separate classification. As such, we have separately classified these charges (benefits) as special items. The table below summarizes special items recorded by segment:
		Three Months Ended
		March 31, 2014			March 30, 2013
		(In millions)
	Employee related charges
	Restructuring(1)
	Canada	$	5.3		$	1.3
	Europe	0.5			3.3
	Corporate	—			0.3
	Special termination benefits
	Canada(2)	—			0.8
	Impairments or asset abandonment charges
	Canada - Intangible asset write-off(3)	4.9			—
	Unusual or infrequent items
	Europe - Release of non-income-related tax reserve(4)	—			(4.2		)
	Termination fees and other (gains)/losses
	Canada - Termination fee income(3)	(63.2		)	—
	Special items, net	$	(52.5	)	$	1.5
	-1	During the three months ended March 31, 2014, and March 30, 2013, we recognized expenses associated with restructuring programs focused on labor savings and organizational effectiveness across all functions. See further discussion of restructuring activities below.
	-2	During the three months ended March 30, 2013, we recognized charges related to special termination benefits as eligible employees elected early retirement offered as a result of the ratification of collective bargaining agreements with MCC's brewery groups.
	-3	See Note 4, "Investments" for further discussion related to the termination of MMI operations and related intangible asset charge.
	-4	During 2009, we established a non-income-related tax reserve of $10.4 million that was recorded as a special item. In the first quarter of 2013, the remaining outstanding amount of this non-income-related tax reserve was fully released.
	Restructuring Activities
	In 2012, we introduced several initiatives focused on increasing our efficiencies and reducing costs across all functions of the business in order to develop a more competitive supply chain and global cost structure. Included in these initiatives is a long-term focus on reducing labor and general overhead costs through restructuring activities. We view these restructuring activities as actions to allow us to meet our long-term growth targets by generating future cost savings within cost of goods sold and general and administrative expenses and include organizational changes that strengthen our business and accelerate efficiencies within our operational structure. As a result of these restructuring activities, we have reduced headcount and consequently recognized severance and other employee related charges, which we have recorded as special items. As we continually evaluate our cost structure and seek opportunities for further efficiencies and cost savings, we may incur additional restructuring related charges in the future; however, we are unable to estimate the amount of charges at this time.
	The accrued restructuring balances represent expected future cash payments required to satisfy the remaining severance obligations to terminated employees, the majority of which we expect to be paid in the next 12-24 months. The table below summarizes the activity in the restructuring accruals by segment:
		Canada			Europe			MCI			Corporate			Total
		(In millions)
	Total at December 31, 2013	$	9.7		$	13.6		$	0.5		$	0.9		$	24.7
	Charges incurred	5.3			0.5			—			—			5.8
	Payments made	(3.6		)	(0.6		)	(0.1		)	(0.2		)	(4.5		)
	Foreign currency and other adjustments	(0.4		)	0.2			—			—			(0.2		)
	Total at March 31, 2014	$	11		$	13.7		$	0.4		$	0.7		$	25.8
		Canada			Europe			MCI			Corporate			Total
		(In millions)
	Total at December 29, 2012	$	7.1		$	13.4		$	2.8		$	1.5		$	24.8
	Charges incurred	1.3			3.3			—			0.3			4.9
	Payments made	(2.9		)	(2.6		)	(1.7		)	(0.3		)	(7.5		)
	Foreign currency and other adjustments	(0.2		)	(0.4		)	—			—			(0.6		)
	Total at March 30, 2013	$	5.3		$	13.7		$	1.1		$	1.5		$	21.6

Other_Income_and_Expense

Other Income and Expense	3 Months Ended
	Mar. 31, 2014
Other Income and Expenses [Abstract]	'
Other Income and Expense	'
	Other Income and Expense
	The table below summarizes other income and expense:
		Three Months Ended
		March 31, 2014		March 30, 2013
		(In millions)
	Gain on sale of non-operating asset(1)	$	—	$	1.2
	Gain (loss) from other foreign exchange and derivative activity(2)	0.8		2.7
	Other, net	—		0.4
	Other income (expense), net	$	0.8	$	4.3
	-1	During the first quarter of 2013, we realized a gain for proceeds received related to a non-income-related tax settlement resulting from historical activity within our former investment in the Montréal Canadiens.
	-2	Included in this amount are gains of $0.5 million and $20.1 million for the three months ended March 31, 2014, and March 30, 2013, respectively, related to foreign currency movements on foreign-denominated financing instruments entered into in conjunction with the closing of the Acquisition. We also recorded a net loss of $10.6 million for the three months ended March 30, 2013, related to foreign cash positions and foreign exchange contracts entered into to hedge our risk associated with the payment of this foreign-denominated debt. Additionally, we recorded net gains of $0.3 million and losses of $6.8 million related to other foreign exchange and derivative activity during the three months ended March 31, 2014, and March 30, 2013, respectively.

Income_Tax

Income Tax	3 Months Ended
	Mar. 31, 2014
Income Tax Disclosure [Abstract]	'
Income Tax	'
	Income Tax
	Our effective tax rates for the first quarter of 2014 and 2013 were approximately 3% and 6%, respectively. The effective tax rate for the first quarter of 2013 has been adjusted to reflect the impact from the change in interim accounting for advertising expenses. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further discussion. Our effective tax rates were significantly lower than the federal statutory rate of 35% primarily due to lower statutory income tax rates applicable to our Canada and Europe businesses, as well as the discrete items further discussed below. The effective tax rate for the three months ended March 31, 2014, decreased versus the three months ended March 30, 2013, primarily due to increased discrete tax benefits recognized in the current year resulting from the favorable resolution of unrecognized tax positions related to tax audits settled in the first quarter of 2014, and the release of valuation allowances in Europe. Our total net discrete tax benefit was $24.8 million in the first quarter of 2014, which reduced our quarterly effective tax rate by 15 percentage points.
	Our tax rate is volatile and may move up or down with changes in, among other things, the amount and source of income or loss, our ability to utilize foreign tax credits, changes in tax laws, and the movement of liabilities established for uncertain tax positions as statutes of limitations expire or positions are otherwise effectively settled. There are proposed or pending tax law changes in various jurisdictions that, if enacted, may have an impact on our effective tax rate.
	As of March 31, 2014, and December 31, 2013, we had unrecognized tax benefits including interest, penalties and offsetting positions of $56.5 million and $115.9 million, respectively. The allocation of these balances between current and noncurrent has not changed materially since December 31, 2013. The decrease to our unrecognized tax benefits on our unaudited condensed consolidated balance sheets from December 31, 2013, to March 31, 2014, was due to the previously discussed favorable resolution of unrecognized tax positions and the reclassification of certain unrecognized tax benefits as a result of the adoption of the recently issued guidance

Earnings_per_Share_EPS

Earnings per Share ("EPS")	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Earnings per Share ("EPS")	'
	Earnings Per Share
	Basic earnings per share ("EPS") was computed using the weighted-average number of shares of common stock outstanding during the period. Diluted EPS includes the additional dilutive effect of our potentially dilutive securities, which includes stock options, stock-only stock appreciation rights ("SOSARs"), restricted stock units ("RSUs"), performance units ("PUs"), performance share units ("PSUs") and deferred stock units ("DSUs"). The dilutive effects of our potentially dilutive securities are calculated using the treasury stock method. The following summarizes the effect of dilutive securities on diluted EPS:
		Three Months Ended
		March 31, 2014				March 30, 2013(1)
		(In millions, except per share amounts)
	Amounts attributable to MCBC
	Net income (loss) from continuing operations	$	165.3			$	29.4
	Income (loss) from discontinued operations, net of tax	(1.9		)		(0.9		)
	Net income (loss) attributable to Molson Coors Brewing Company	$	163.4			$	28.5
	Weighted-average shares for basic EPS	184.3				181.7
	Effect of dilutive securities:
	Stock options and SOSARs	0.6				0.7
	RSUs, PSUs, PUs and DSUs	0.6				0.5
	Weighted-average shares for diluted EPS	185.5				182.9
	Basic net income (loss) attributable to Molson Coors Brewing Company per share:
	From continuing operations	$	0.9			$	0.16
	From discontinued operations	(0.01		)		—
	Basic net income (loss) attributable to Molson Coors Brewing Company per share	$	0.89			$	0.16
	Diluted net income (loss) attributable to Molson Coors Brewing Company per share:
	From continuing operations	$	0.89			$	0.16
	From discontinued operations	(0.01		)		—
	Diluted net income (loss) attributable to Molson Coors Brewing Company per share	$	0.88			$	0.16
	Dividends declared and paid per share	$	0.37			$	0.32
	-1	Amounts have been adjusted to reflect the change in interim accounting for advertising expenses. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further discussion.
	The following anti-dilutive securities were excluded from the computation of the effect of dilutive securities on diluted earnings per share:
		Three Months Ended
		March 31, 2014			March 30, 2013
		(In millions)
	Stock options, SOSARs and RSUs	0.1			0.2
	Total weighted-average anti-dilutive securities	0.1			0.2
	Convertible Notes
	In June 2007, we issued $575 million Convertible Senior Notes ("$575 million convertible bonds") due July 2013. On July 30, 2013, these notes matured and were repaid for their face value of $575 million. The required premium payment was settled in cash and entirely offset by the cash proceeds received from the settlement of the call options we purchased in 2007 related to these notes. As a result, these notes and related call options did not impact our shares outstanding. Additionally, the potential impacts of these notes and related call options had no impact on diluted income per share for any period in which they were outstanding. Simultaneously with the issuance of these notes, we issued warrants which began expiring in December 2013 and the final warrants expired February 6, 2014, all of which were out-of-the-money upon settlement. The potential impacts of these warrants had no impact on diluted income per share for all periods presented and were excluded from the computation of the effect of dilutive securities on diluted earnings per share for the three months ended March 31, 2014, and March 30, 2013.
	In June 2012, we issued a €500 million Zero Coupon Senior Unsecured Convertible Note ("€500 million convertible note"). On August 13, 2013, the embedded put option was exercised and we subsequently settled the note using cash. See Note 11, "Debt" for further discussion. As a result, the €500 million convertible note did not impact our shares outstanding and was excluded from the computation of the effect of diluted securities on diluted earnings per share for the three months ended March 30, 2013.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangible Assets	'
	Goodwill and Intangible Assets
	The following summarizes the change in goodwill for the three months ended March 31, 2014:
		Canada				Europe				MCI				Consolidated
		(In millions)
	Balance at December 31, 2013	$	718.2			$	1,693.20			$	7.3			$	2,418.70
	Foreign currency translation	(27.7		)		3.5				0.2				(24.0		)
	Balance at March 31, 2014	$	690.5			$	1,696.70			$	7.5			$	2,394.70
	The following table presents details of our intangible assets, other than goodwill, as of March 31, 2014:
		Useful life		Gross				Accumulated				Net
								amortization
		(Years)		(In millions)
	Intangible assets subject to amortization:
	Brands	3 - 40		$	531.2			$	(226.6	)		$	304.6
	Distribution rights	2 - 23		262.7				(214.4		)		48.3
	Patents and technology and distribution channels	3 - 10		36.4				(33.3		)		3.1
	Other	2		1.2				(1.2		)		—
	Intangible assets not subject to amortization:
	Brands	Indefinite		5,363.30				—				5,363.30
	Distribution networks	Indefinite		915.5				—				915.5
	Other	Indefinite		17.5				—				17.5
	Total			$	7,127.80			$	(475.5	)		$	6,652.30
	The following table presents details of our intangible assets, other than goodwill, as of December 31, 2013:
		Useful life		Gross				Accumulated				Net
								amortization
		(Years)		(In millions)
	Intangible assets subject to amortization:
	Brands	3 - 40		$	537.5			$	(224.7	)		$	312.8
	Distribution rights	2 - 23		314.1				(255.0		)		59.1
	Patents and technology and distribution channels	3 - 10		36.2				(32.8		)		3.4
	Other	2		1.2				(1.2		)		—
	Intangible assets not subject to amortization:
	Brands	Indefinite		5,482.30				—				5,482.30
	Distribution networks	Indefinite		952.3				—				952.3
	Other	Indefinite		15.2				—				15.2
	Total			$	7,338.80			$	(513.7	)		$	6,825.10
	The changes in the gross carrying amounts of intangibles from December 31, 2013, to March 31, 2014, are primarily driven by the impact of foreign exchange rates, as a significant amount of intangibles are denominated in foreign currencies. Additionally, upon termination of MMI operations in the first quarter of 2014, we accelerated the amortization of the remaining $4.9 million net carrying value of the related definite-lived intangible asset and wrote-off its gross value of $40.5 million. See Note 4, "Investments" for further discussion.
	Based on foreign exchange rates as of March 31, 2014, the estimated future amortization expense of intangible assets is as follows:
	Fiscal year	Amount
		(In millions)
	2014 - remaining	$	31
	2015	$	38.9
	2016	$	38.9
	2017	$	13.8
	2018	$	12
	Amortization expense of intangible assets was $10.6 million and $11.9 million for the three months ended March 31, 2014, and March 30, 2013, respectively, and is presented within marketing, general and administrative expenses. This excludes the accelerated amortization recognized for the write-off of the intangible asset associated with the termination of MMI operations in the first quarter of 2014. See Note 4, "Investments" for further discussion.
	We completed our required annual goodwill and indefinite-lived intangible impairment testing as of June 30, 2013, the first day of our fiscal year 2013 third quarter, and concluded there were no impairments of goodwill within our Europe, Canada or India reporting units or impairments of our indefinite-lived intangible assets, with the exception of the Jelen and Ostravar brand intangibles as discussed below.
	Reporting Units and Goodwill
	The operations in each of the specific regions within our Canada, Europe and MCI segments are considered components based on the availability of discrete financial information and the regular review by segment management. We have concluded that the components within the Canada and Europe segments each meet the criteria as having similar economic characteristics and therefore have aggregated these components into the Canada and Europe reporting units, respectively. Additionally, we determined that the components within our MCI segment do not meet the criteria for aggregation, and therefore, the operations of our India business constitute a separate reporting unit at the component level.
	Our annual goodwill impairment testing determined that our Europe and Canada reporting units were at risk of failing step one of the goodwill impairment test. Specifically, the fair value of the Europe and Canada reporting units were estimated at approximately 11% and 16% in excess of carrying value, respectively, as of the testing date. The risk in the Europe reporting unit is due to continued adverse impacts of a weak economy in Europe partially offset by the realized benefits of combining our U.K. and Central Europe businesses. The Canada reporting unit had a marginal improvement over the prior year primarily as a result of incremental anticipated cost savings and improvements to market multiples more than offsetting the continued competitive pressures and challenging macroeconomic conditions in the Canada market.
	Indefinite-Lived Intangibles
	In 2013, our annual indefinite-lived intangible impairment testing determined that the fair values of the Jelen and Ostravar indefinite-lived brand intangibles within our Europe segment were below their respective carrying values. As a result, we recorded an aggregate impairment charge of $150.9 million within special items in the third quarter of 2013. Additionally, two brands, Ozujsko in Croatia and Branik in Czech Republic, were determined to be at risk of future impairment as a result of discount rate pressures due to country specific macroeconomic risk factors that are currently more than offset by improved cash flow projections driven by post-acquisition performance and innovations. The Jelen, Ozujsko and Branik brands are, therefore, at risk of future impairment with an aggregate fair value estimated at approximately 1% in excess of their aggregate carrying value as of the impairment testing date. As of March 31, 2014, these at-risk intangible assets had a carrying value of $1,306.1 million. Additionally, in conjunction with the brand impairment test, we reclassified Ostravar as a definite-lived intangible asset.
	Separately, our Molson core brand intangible continues to be at risk of future impairment with a fair value estimated at approximately 10% in excess of its carrying value as of the impairment testing date, as the Molson core brands have continued to face significant competitive pressures and challenging macroeconomic conditions in the Canada market. These challenges have been partially offset by anticipated cost savings initiatives. As of March 31, 2014, the Molson core brand intangible had a carrying value of $2,747.4 million.
	Regarding definite-lived intangibles, we continuously monitor the performance of the underlying asset for potential triggering events suggesting an impairment review should be performed. No such triggering events were identified in the first quarter of 2014. However, recent litigation related to the licensing agreement with Miller in Canada resulted in a $17.9 million impairment charge of our definite-lived intangible asset related to our licensing agreement in December 2013. As of March 31, 2014, the intangible has a remaining carrying value of $34.0 million with an estimated remaining life of approximately three years. The outcome of the litigation or any future settlement discussions with Miller could result in additional impairments. See Note 15, "Commitments and Contingencies" for further discussion.

Debt

Debt	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
Debt	'
	Debt
	Debt obligations
	Our total borrowings as of March 31, 2014, and December 31, 2013, were composed of the following:
		As of
		March 31, 2014			December 31, 2013
		(In millions)
	Senior notes:
	€500 million 0.0% convertible note due 2013(1)	$	15		$	61.8
	Canadian Dollar ("CAD") 900 million 5.0% notes due 2015	814.5			847.2
	CAD 500 million 3.95% Series A notes due 2017	452.5			470.7
	$300 million 2.0% notes due 2017	300			300
	$500 million 3.5% notes due 2022	500			500
	$1.1 billion 5.0% notes due 2042	1,100.00			1,100.00
	Other long-term debt	0.1			0.2
	Long-term credit facilities(2)	—			—
	Less: unamortized debt discounts and other	(4.8		)	(5.1		)
	Total long-term debt (including current portion)	3,177.30			3,274.80
	Less: current portion of long-term debt	(15.0		)	(61.8		)
	Total long-term debt	$	3,162.30		$	3,213.00
	Short-term borrowings(2)	$	615.4		$	525.1
	Current portion of long-term debt	15			61.8
	Current portion of long-term debt and short-term borrowings	$	630.4		$	586.9
	-1	On June 15, 2012, we issued a €500 million convertible note due December 31, 2013, which included a put conversion feature to the Seller. On August 13, 2013, the conversion feature was exercised for an agreed-upon value upon exercise of €510.9 million, consisting of €500 million in principal and €10.9 million for the conversion feature.
	On September 3, 2013, we paid the Seller in cash a total of €466.0 million ($614.7 million) consisting of €455.1 million ($600.3 million) in principal and €10.9 million ($14.4 million) for the conversion feature. Separate from the Seller's notice to put, we had made claims with regard to the representations and warranties provided to us upon close of the Acquisition related to local country regulatory matters associated with pre-acquisition periods. As of December 31, 2013, we had withheld €44.9 million ($61.8 million) from the €500 million in principal related to these outstanding claims. During the first quarter of 2014, we released €34.0 million ($46.3 million at settlement) of the amount withheld to the Seller as a result of the settlement of one of these claims. As of March 31, 2014, the remaining amount withheld was €10.9 million ($15.0 million), which we subsequently released in April 2014 for a final principal payment of €10.9 million ($15.1 million at settlement). We did not incur any interest on amounts withheld.
	The €500 million convertible note's embedded conversion feature was determined to meet the definition of a derivative required to be bifurcated and separately accounted for at fair value with changes in fair value recorded in earnings. During the first quarter of 2013, we recognized an unrealized loss of $29.5 million on the conversion feature based on the fair value movements during the quarter. The cash and non-cash interest, excluding the change in fair value of the convertible feature, resulted in an immaterial impact to our effective interest rate for the first quarter of 2013.
	-2	As of March 31, 2014, and December 31, 2013, the outstanding borrowings under the commercial paper program were $351.1 million and $379.8 million, respectively, with a weighted average effective interest rate and tenor for these outstanding borrowings of 0.42%; 26.6 days and 0.49%; 47.2 days, respectively. We have a revolving credit facility in Europe to provide €150 million on an uncommitted basis through September 2014. As of March 31, 2014, and December 31, 2013, the outstanding borrowings under this revolving credit facility were $123.9 million (€90.0 million) and $137.4 million (€100.0 million), respectively.
	As of March 31, 2014, and December 31, 2013, there were no outstanding borrowings under our $400 million or $550 million revolving credit facilities which mature in the second quarters of 2015 and 2016, respectively. As of March 31, 2014, we have $573.0 million available to draw on, as the borrowing capacity is reduced by borrowings under our commercial paper program discussed above and our letters of credit in Canada.
	As of March 31, 2014, and December 31, 2013, we had outstanding borrowings of $3.7 million and $3.1 million, respectively, under the Japanese Yen line of credit and no borrowings under the GBP and CAD facilities.
	Our Europe segment has a notional cross-border, cross-currency cash pool for the majority of its subsidiaries. As of March 31, 2014, we had $114.1 million in bank overdrafts and $139.2 million in bank cash related to the pool for a net positive position of $25.1 million. As of December 31, 2013, we were not in an overdraft position on a net basis. Also included in short-term borrowings is $22.6 million and $4.8 million related to factoring arrangements and other short-term borrowings within our Europe business as of March 31, 2014, and December 31, 2013, respectively.
	Debt Fair Value Measurements
	We utilize market approaches to estimate the fair value of certain outstanding borrowings by discounting anticipated future cash flows derived from the contractual terms of the obligations and observable market interest and foreign exchange rates. As of March 31, 2014, and December 31, 2013, the fair value of our outstanding long-term debt (including current portion) was $3,355.0 million and $3,359.1 million, respectively. All senior notes are valued based on significant observable inputs and would be classified as Level 2 in the fair value hierarchy. The carrying values of all other outstanding long-term borrowings and our short-term borrowings approximate their fair values.
	Other
	Under the terms of each of our debt facilities, we must comply with certain restrictions. These include restrictions on priority indebtedness (certain threshold percentages of secured consolidated net tangible assets), leverage thresholds, liens, and restrictions on certain types of sale lease-back transactions and transfers of assets. As of March 31, 2014, and December 31, 2013, we were in compliance with all of these restrictions and have met all debt payment obligations.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]	'
Accumuolated Other Comprehensive Income (Loss)	'
	Accumulated Other Comprehensive Income (Loss)
	Changes in accumulated other comprehensive income (loss) ("AOCI") for the first quarter of 2014 were as follows:
		MCBC shareholders
		Foreign				Gain (loss) on				Pension and			Equity method			Accumulated
		currency				derivative				postretirement			investments			other
		translation				instruments				benefit						comprehensive
		adjustments								adjustments						income (loss)
		(In millions)
	As of December 31, 2013	$	979.1			$	14.6			$	(556.3	)	$	(282.5	)	$	154.9
	Foreign currency translation adjustments	(126.8		)		(8.9		)		0.1			—			(135.6		)
	Unrealized gain (loss) on derivative instruments	—				21.5				—			—			21.5
	Reclassification of derivative (gain) loss to income	—				(4.7		)		—			—			(4.7		)
	Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income	—				—				8.3			—			8.3
	Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	—				—				—			4.5			4.5
	Tax benefit (expense)	(46.4		)		(5.5		)		(0.7		)	(2.9		)	(55.5		)
	As of March 31, 2014	$	805.9			$	17			$	(548.6	)	$	(280.9	)	$	(6.6	)
	Reclassifications from AOCI to income for the three months ended March 31, 2014, and March 30, 2013, were as follows:
			Three Months Ended
			March 31, 2014				March 30, 2013
			Reclassifications from AOCI								Location of gain (loss)
											recognized in income
			(In millions)
	Gain/(loss) on cash flow hedges:
	Forward starting interest rate swaps		$	(0.4	)		$	(0.4	)		Interest expense, net
	Foreign currency forwards		1.6				(0.1		)		Other income (expense), net
	Foreign currency forwards		3.3				0.5				Cost of goods sold
	Commodity swaps		0.2				(0.2		)		Cost of goods sold
	Total income (loss) reclassified, before tax		4.7				(0.2		)
	Income tax benefit (expense)		(1.5		)		0.1
	Net income (loss) reclassified, net of tax		$	3.2			$	(0.1	)
	Amortization of defined benefit pension and other postretirement benefit plan items:
	Prior service benefit (cost)		$	0.6			$	0.7			-1
	Net actuarial gain (loss)		(8.9		)		(14.2		)		-1
	Total income (loss) reclassified, before tax		(8.3		)		(13.5		)
	Income tax benefit (expense)		0.7				2.9
	Net income (loss) reclassified, net of tax		$	(7.6	)		$	(10.6	)
	Total income (loss) reclassified, net of tax		$	(4.4	)		$	(10.7	)
	-1	These components of AOCI are included in the computation of net periodic pension and other postretirement benefit cost. See Note 14, "Pension and Other Postretirement Benefits" for additional details.

Derivative_Instruments_and_Hed

Derivative Instruments and Hedging Activities	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments and Hedging Activities	'
	Derivative Instruments and Hedging Activities
	Our risk management and derivative accounting policies are presented in Notes 1 and 17 of the Notes included in our Annual Report and did not significantly change during the first quarter of 2014. As noted in Note 17 of the Notes included in our Annual Report, due to the nature of our counterparty agreements, and the fact that we are not subject to master netting arrangements, we are not able to net positions with the same counterparty and therefore present our derivative positions gross in our unaudited condensed consolidated balance sheets. Our significant derivative/hedge positions have not changed significantly since year-end, except as noted below.
	Cross Currency Swaps
	In the first quarter of 2014, we early settled the final remaining CAD 241 million notional of our outstanding currency swaps designated as a net investment hedge of our Canadian operations for $65.2 million. As of March 31, 2014, we do not have any cross currency swap positions outstanding.
	Derivative Fair Value Measurements
	We utilize market approaches to estimate the fair value of our derivative instruments by discounting anticipated future cash flows derived from the derivative's contractual terms and observable market interest, foreign exchange and commodity rates. The fair values of our derivatives also include credit risk adjustments to account for our counterparties' credit risk, as well as our own non-performance risk. The table below summarizes our derivative assets and liabilities that were measured at fair value as of March 31, 2014, and December 31, 2013.
						Fair value measurements as of March 31, 2014
		Total at March 31, 2014				Quoted prices in				Significant other				Significant
						active markets				observable inputs				unobservable
						(Level 1)				(Level 2)				inputs (Level 3)
		(In millions)
	Foreign currency forwards	$	29.9			$	—			$	29.9			$	—
	Commodity swaps	(5.8		)		—				(5.8		)		—
	Total	$	24.1			$	—			$	24.1			$	—
						Fair value measurements as of December 31, 2013
		Total at December 31, 2013				Quoted prices in				Significant other				Significant
						active markets				observable inputs				unobservable
						(Level 1)				(Level 2)				inputs (Level 3)
		(In millions)
	Cross currency swaps	$	(71.7	)		$	—			$	(71.7	)		$	—
	Foreign currency forwards	19.7				—				19.7				—
	Commodity swaps	(4.9		)		—				(4.9		)		—
	Total	$	(56.9	)		$	—			$	(56.9	)		$	—
	As of March 31, 2014, we had no significant transfers between Level 1 and Level 2. New derivative contracts transacted during the three months ended March 31, 2014, were all included in Level 2.
	Results of Period Derivative Activity
	The tables below include the year to date results of our derivative activity in the unaudited condensed consolidated balance sheets as of March 31, 2014, and December 31, 2013, and the unaudited condensed consolidated statements of operations for the three months ended March 31, 2014, and March 30, 2013.
	Fair Value of Derivative Instruments in the Condensed Consolidated Balance Sheet (in millions, except for certain commodity swaps with notional amounts measured in Metric Tonnes, as noted)
		March 31, 2014
						Asset derivatives						Liability derivatives
		Notional amount				Balance sheet location		Fair value				Balance sheet location		Fair value
	Derivatives designated as hedging instruments:
	Foreign currency forwards	USD	422.6			Other current assets		$	17			Accounts payable and other current liabilities		$	—
						Other non-current assets		12.9				Other liabilities		—
	Commodity swaps	kWh	846.2			Other current assets		0.7				Accounts payable and other current liabilities		(0.8		)
						Other non-current assets		0.1				Other liabilities		(0.2		)
	Total derivatives designated as hedging instruments							$	30.7					$	(1.0	)
	Derivatives not designated as hedging instruments:
	Commodity swaps	Metric tonnes (actual)	57,222			Other current assets		$	0.2			Accounts payable and other current liabilities		$	(2.2	)
						Other non-current assets		0.1				Other liabilities		(3.7		)
	Total derivatives not designated as hedging instruments							$	0.3					$	(5.9	)
		December 31, 2013
						Asset derivatives						Liability derivatives
		Notional amount				Balance sheet location		Fair value				Balance sheet location		Fair value
	Derivatives designated as hedging instruments:
	Cross currency swaps	CAD	240.7			Other current assets		$	—			Accounts payable and other current liabilities		$	(71.7	)
	Foreign currency forwards	USD	476.1			Other current assets		11.5				Accounts payable and other current liabilities		—
						Other non-current assets		8.2				Other liabilities		—
	Commodity swaps	kWh	848.8			Other current assets		0.2				Accounts payable and other current liabilities		(0.2		)
						Other non-current assets		0.1				Other liabilities		(0.3		)
	Total derivatives designated as hedging instruments							$	20					$	(72.2	)
	Derivatives not designated as hedging instruments:
	Commodity swaps	Metric tonnes (actual)	55,653			Other current assets		$	—			Accounts payable and other current liabilities		$	(2.0	)
						Other non-current assets		—				Other liabilities		(2.7		)
	Total derivatives not designated as hedging instruments							$	—					$	(4.7	)
	The Pretax Effect of Derivative Instruments on the Condensed Consolidated Statement of Operations (in millions)
	For the Three Months Ended March 31, 2014
	Derivatives in cash flow hedge relationships		Amount of gain				Location of gain (loss)		Amount of gain				Location of gain (loss)		Amount of gain (loss)
			(loss) recognized				reclassified from AOCI into		(loss) recognized				recognized in income on		recognized in income
			in OCI on				income (effective portion)		from AOCI on				derivative (ineffective portion		on derivative
			derivative						derivative				and amount excluded from		(ineffective portion and
			(effective						(effective portion)				effectiveness testing)		amount excluded from
			portion)												effectiveness testing)
	Forward starting interest rate swaps		$	—			Interest expense, net		$	(0.4	)		Interest expense, net		$	—
Foreign currency forwards		14.7				Other income (expense), net		1.6				Other income (expense), net		—
						Cost of goods sold		3.3				Cost of goods sold		—
Commodity swaps		0.3				Cost of goods sold		0.2				Cost of goods sold		—
Total		$	15					$	4.7					$	—
For the Three Months Ended March 31, 2014
Derivatives and non-derivative financial instruments in net investment hedge relationships		Amount of gain				Location of gain (loss)		Amount of gain				Location of gain (loss)		Amount of gain (loss)
		(loss) recognized in				reclassified from AOCI into		(loss) recognized				recognized in income		recognized in income
		OCI (effective portion)				income (effective portion)		from AOCI				(ineffective portion		(ineffective portion and
								(effective portion)				and amount excluded from		amount excluded from
												effectiveness testing)		effectiveness testing)
Cross currency swaps		$	6.5			Other income (expense), net		$	—			Other income (expense), net		$	—
Total		$	6.5					$	—					$	—
For the Three Months Ended March 30, 2013
Derivatives in cash flow hedge relationships		Amount of gain				Location of gain (loss)		Amount of gain				Location of gain (loss)		Amount of gain (loss)
		(loss) recognized				reclassified from AOCI into		(loss) recognized				recognized in income on		recognized in income
		in OCI on				income (effective portion)		from AOCI on				derivative (ineffective portion		on derivative
		derivative						derivative				and amount excluded from		(ineffective portion and
		(effective						(effective portion)				effectiveness testing)		amount excluded from
		portion)												effectiveness testing)
Forward starting interest rate swaps		$	—			Interest expense, net		$	(0.4	)		Interest expense, net		$	—
Foreign currency forwards		8.9				Other income (expense), net		(0.1		)		Other income (expense), net		—
						Cost of goods sold		0.5				Cost of goods sold		—
Commodity swaps		0.6				Cost of goods sold		(0.2		)		Cost of goods sold		—
Total		$	9.5					$	(0.2	)				$	—
For the Three Months Ended March 30, 2013
Derivatives and non-derivative financial instruments in net investment hedge relationships		Amount of gain				Location of gain (loss)		Amount of gain				Location of gain (loss)		Amount of gain (loss)
		(loss) recognized in				reclassified from AOCI into		(loss) recognized				recognized in income		recognized in income
		OCI (effective portion)				income (effective portion)		from AOCI				(ineffective portion		(ineffective portion and
								(effective portion)				and amount excluded from		amount excluded from
												effectiveness testing)		effectiveness testing)
Cross currency swaps		$	14.2			Other income (expense), net		$	—			Other income (expense), net		$	—
€120 million term loan due 2016		3.7				Other income (expense), net		—				Other income (expense), net		—
Total		$	17.9					$	—					$	—
During the periods presented we recorded no significant ineffectiveness related to these cash flow and net investment hedges.
We expect net gains of approximately $16.9 million (pre-tax) recorded in AOCI at March 31, 2014, will be reclassified into earnings within the next 12 months. The maximum length of time over which forecasted transactions are hedged at March 31, 2014, is 3.8 years, and such transactions relate to foreign exchange and commodity exposures.
Other Derivatives (in millions)
For the Three Months Ended March 31, 2014
Derivatives not in hedging relationships		Location of gain (loss) recognized in		Amount of gain (loss) recognized in
		income on derivative		income on derivative
Commodity swaps		Cost of goods sold		$	(1.3	)
Total				$	(1.3	)
For the Three Months Ended March 30, 2013
Derivatives not in hedging relationships		Location of gain (loss) recognized in		Amount of gain (loss) recognized in
		income on derivative		income on derivative
Equity conversion feature of debt		Interest expense, net		$	(29.7	)
		Other income (expense), net		0.2
Commodity Swaps		Cost of goods sold		—
Foreign currency forwards		Other income (expense), net		(10.6		)
Total				$	(40.1	)

Pension_and_Other_Postretireme

Pension and Other Postretirement Benefits	3 Months Ended
	Mar. 31, 2014
Compensation and Retirement Disclosure [Abstract]	'
Pension and Other Postretirement Benefits	'
	Pension and Other Postretirement Benefits
	Net Periodic Pension and Other Postretirement Benefits ("OPEB") Cost
		For the Three Months Ended
		31-Mar-14									30-Mar-13
		Pension			OPEB			Consolidated			Pension			OPEB			Consolidated
		(In millions)
	Net periodic pension and OPEB cost:
	Service cost - benefits earned during the year	$	3.3		$	0.7		$	4		$	4		$	0.9		$	4.9
	Interest cost on projected benefit obligation	42.1			1.7			43.8			39.4			1.8			41.2
	Expected return on plan assets	(49.1		)	—			(49.1		)	(44.7		)	—			(44.7		)
	Amortization of prior service cost (benefit)	0.2			(0.8		)	(0.6		)	0.2			(0.9		)	(0.7		)
	Amortization of net actuarial loss (gain)	9.1			(0.2		)	8.9			14.3			(0.1		)	14.2
	Less: expected participant contributions	(0.3		)	—			(0.3		)	(0.3		)	—			(0.3		)
	Net periodic pension and OPEB cost	$	5.3		$	1.4		$	6.7		$	12.9		$	1.7		$	14.6
	During the three months ended March 31, 2014, employer contributions to the defined benefit plans were $14.9 million. Total fiscal year 2014 employer contributions to the defined benefit plans are expected to be approximately $20 million to $40 million based on foreign exchange rates as of March 31, 2014. MillerCoors, BRI and BDL contributions to their defined benefit pension and other postretirement benefit plans are not included above, as they are not consolidated in our financial statements.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	Discontinued Operations
	Kaiser
	In 2006, we sold our entire equity interest in our Brazilian unit, Cervejarias Kaiser Brasil S.A. ("Kaiser") to FEMSA Cerveza S.A. de C.V. ("FEMSA"). The terms of the sale agreement require us to indemnify FEMSA for exposures related to certain tax, civil and labor contingencies arising prior to FEMSA's purchase of Kaiser. In addition, we provided an indemnity to FEMSA for losses Kaiser may incur with respect to tax claims associated with certain previously utilized purchased tax credits. The discontinued operations balances within the current and non-current liabilities of our unaudited condensed consolidated balance sheets consist entirely of our estimates of these liabilities. These liabilities are denominated in Brazilian Reais and are therefore subject to foreign exchange gains or losses, which are recognized in the discontinued operations section of the unaudited condensed consolidated statement of operations. There have been no changes in the underlying liabilities from the year ended December 31, 2013, therefore all changes in the current and non-current liabilities of discontinued operations during the three months ended March 31, 2014, are due to fluctuations in foreign exchange rates from December 31, 2013, to March 31, 2014. In the three months ended March 31, 2014, and March 30, 2013, we recognized losses of $1.9 million and $0.9 million, respectively, from discontinued operations associated with foreign exchange gains and losses related to indemnities we provided to FEMSA. Our exposure related to the tax, civil and labor indemnity claims is capped at the amount of the sales price of the 68% equity interest of Kaiser, which was $68.0 million. Separately, the maximum potential claims amount remaining for the purchased tax credits was $154.2 million as of March 31, 2014.
	Future settlement procedures and related negotiation activities associated with these contingencies are largely outside of our control. Due to the uncertainty involved with the ultimate outcome and timing of these contingencies, significant adjustments to the carrying values of the indemnity obligations have been recorded to date, and additional future adjustments may be required.
	Guarantees
	We guarantee indebtedness and other obligations to banks and other third parties for some of our equity method investments and consolidated subsidiaries. Related to our previous ownership in the Montréal Canadiens, we guarantee its obligations under a ground lease for the Bell Centre Arena (the "Ground Lease Guarantee"). Upon sale of our interest, the new owners agreed to indemnify us in connection with the liabilities we may incur under the Ground Lease Guarantee and provided us with a CAD 10 million letter of credit to guarantee such indemnity. This transaction did not materially affect our risk exposure related to the Ground Lease Guarantee, which continues to be recognized as a liability on our consolidated balance sheets.
	Related to guarantees, other liabilities in the accompanying unaudited condensed consolidated balance sheets include $5.5 million as of March 31, 2014, and $5.8 million as of December 31, 2013, both of which are non-current.
	Litigation and Other Disputes and Environmental
	Related to litigation, other disputes and environmental issues, we have accrued an aggregate of $15.4 million as of March 31, 2014, and $14.0 million as of December 31, 2013. We believe that any reasonably possible losses in excess of the amounts accrued are immaterial to our unaudited condensed consolidated financial statements.
	In addition to the specific case discussed below, we are involved in other disputes and legal actions arising in the ordinary course of our business. While it is not feasible to predict or determine the outcome of these proceedings, in our opinion, based on a review with legal counsel, none of these disputes and legal actions is expected to have a material impact on our business, consolidated financial position, results of operations or cash flows. However, litigation is subject to inherent uncertainties and an adverse result in these or other matters may arise from time to time that may harm our business.
	In 2013, we became aware of potential liabilities in several Central European countries primarily related to local country regulatory matters associated with pre-acquisition periods. We recorded liabilities related to these matters in the second quarter of 2013 as we finalized purchase price accounting related to the Acquisition. During the first quarter of 2014, these matters were favorably resolved and we released the associated indirect tax and income tax related reserves, inclusive of post-acquisition accrued interest, resulting in a gain of $13.0 million, recorded within marketing, general and administrative expenses and an income tax benefit of $18.5 million. As a result of the resolution, we released amounts previously withheld with regard to these matters to the Seller. See Note 11, "Debt" for further discussion.
	While we cannot predict the eventual aggregate cost for environmental and related matters in which we are currently involved, we believe that any payments, if required, for these matters would be made over a period of time in amounts that would not be material in any one year to our results from operations, cash flows or our financial or competitive position. We believe adequate reserves have been provided for losses that are probable and estimable.
	Litigation and Other Disputes
	In December 2012, Miller Brewing Company (“Miller”) orally informed us of its intent to terminate the license agreement between Miller and us whereby we have exclusive rights to distribute certain Miller products in Canada (the “License Agreement”). Miller alleges that we failed to meet certain volume sales targets under the License Agreement. We do not believe Miller has any right under the License Agreement or otherwise to terminate the License Agreement. We filed a lawsuit in Ontario, Canada (Molson Canada 2005 v. Miller Brewing Company, Sup. Ct. of Justice-Ontario, CV-12-470589) seeking an injunction preventing Miller from terminating the License Agreement and ordering Miller to abide by its contractual terms. On January 18, 2013, Miller sent written notice to us purporting to terminate the License Agreement. On June 20, 2013, we were granted an injunction preventing Miller's termination of the License Agreement, pending a trial on the merits, originally scheduled for December 2013. During December 2013, upon completion of discovery and exchange of affidavits, both parties requested an extension of the trial and entered into private settlement discussions. The parties have been unable to reach a settlement at this time. On May 2, 2014, the court set a new trial date that has been tentatively scheduled for November 2014.
	At trial we would intend to vigorously assert and defend our rights in this lawsuit. The ultimate outcome of the litigation could result in a materially different outcome than currently estimated by management, including the potential of further impairment beyond the $17.9 million non-cash charge recorded in the fourth quarter of 2013, or possible recovery of previously impaired amounts. We recognized net sales related to the License Agreement of $13.9 million and $17.2 million for the three months ended March 31, 2014, and March 30, 2013, respectively. Additionally, as of March 31, 2014, we had a definite-lived intangible asset related to the License Agreement with a carrying value of $34.0 million and a remaining life of approximately three years.
	Environmental
	Canada
	Our Canada brewing operations are subject to provincial environmental regulations and local permit requirements. Our Montréal and Toronto breweries have water treatment facilities to pre-treat waste water before it goes to the respective local governmental facility for final treatment. We have environmental programs in Canada including organization, monitoring and verification, regulatory compliance, reporting, education and training, and corrective action.
	We sold a chemical specialties business in 1996. We are still responsible for certain aspects of environmental remediation, undertaken or planned, at those chemical specialties business locations. We have established provisions for the costs of these remediation programs.
	United States
	We were previously notified that we are or may be a potentially responsible party ("PRP") under the Comprehensive Environmental Response, Compensation and Liability Act or similar state laws for the cleanup of sites where hazardous substances have allegedly been released into the environment. We cannot predict with certainty the total costs of cleanup, our share of the total cost, the extent to which contributions will be available from other parties, the amount of time necessary to complete the cleanups or insurance coverage.
	Lowry
	We are one of a number of entities named by the Environmental Protection Agency ("EPA") as a PRP at the Lowry Superfund site. This landfill is owned by the City and County of Denver ("Denver") and is managed by Waste Management of Colorado, Inc. ("Waste Management"). In 1990, we recorded a pre-tax charge of $30 million, a portion of which was put into a trust in 1993 as part of a settlement with Denver and Waste Management regarding the then-outstanding litigation. Our settlement was based on an assumed remediation cost of $120 million (in 1992 adjusted dollars). We are obligated to pay a portion of future costs, if any, in excess of that amount.
	Waste Management provides us with updated annual cost estimates through 2032. We review these cost estimates in the assessment of our accrual related to this issue. We use certain assumptions that differ from Waste Management's estimates to assess our expected liability. Our expected liability (based on the $120 million threshold being met) is based on our best estimates available.
	The assumptions used are as follows:
	•	trust management costs are included in projections with regard to the $120 million threshold, but are expensed only as incurred;
	•	income taxes, which we believe are not an included cost, are excluded from projections with regard to the $120 million threshold;
	•	a 2.5% inflation rate for future costs; and
	•	certain operations and maintenance costs were discounted using a 3.15% risk-free rate of return.
	Based on these assumptions, the present value and gross amount of the costs at March 31, 2014, are approximately $2.8 million and $7.3 million, respectively. We did not assume any future recoveries from insurance companies in the estimate of our liability, and none are expected.
	Considering the estimates extend through the year 2032 and the related uncertainties at the site, including what additional remedial actions may be required by the EPA, new technologies and what costs are included in the determination of when the $120 million is reached, the estimate of our liability may change as further facts develop. We cannot predict the amount of any such change, but additional accruals in the future are possible.
	Other
	In prior years, we have been notified by the EPA and certain state environmental divisions that we are a PRP, along with other parties, at the Cooper Drum site in southern California, the East Rutherford and Berry's Creek sites in New Jersey and the Chamblee and Smyrna sites in Georgia. Certain former non-beer business operations, which we discontinued use of and sold (excluding the property of the former Chamblee site) in the mid-1990s, were involved at these sites. Potential losses associated with these sites could increase as remediation planning progresses.
	We are aware of groundwater contamination at some of our properties in Colorado resulting from historical, ongoing, or nearby activities. There may also be other contamination of which we are currently unaware.
	Europe and MCI
	We are subject to the requirements of governmental and local environmental and occupational health and safety laws and regulations within each of the countries in which we operate. Compliance with these laws and regulations did not materially affect our first quarter of 2014 capital expenditures, results of operations or our financial or competitive position, and we do not anticipate that they will do so during the remainder of the year.

Supplemental_Guarantor_Informa

Supplemental Guarantor Information	3 Months Ended
	Mar. 31, 2014
Supplemental Guarantor Information [Abstract]	'
Supplemental Guarantor Information	'
	Supplemental Guarantor Information
	For purposes of this Note 16, including the tables, "Parent Guarantor and 2012 Issuer" shall mean MCBC and "Subsidiary Guarantors" shall mean certain U.S., European and Canadian subsidiaries reflecting the substantial operations of each of our U.S. and Canadian segments, as well as our U.K. operations of our European segment.
	SEC Registered Securities
	On May 3, 2012, MCBC issued $1.9 billion of senior notes, in a registered public offering, consisting of $300 million 2.0% senior notes due 2017, $500 million 3.5% senior notes due 2022, and $1.1 billion 5.0% senior notes due 2042. These senior notes are guaranteed on a senior unsecured basis by the Subsidiary Guarantors. Each of the Subsidiary Guarantors is 100% owned by the Parent Guarantor. The guarantees are full and unconditional and joint and several.
	Other Debt
	On September 22, 2005, MC Capital Finance ULC ("MC Capital Finance") issued $1.1 billion of senior notes consisting of $300 million 4.85% U.S. publicly registered notes due 2010 and CAD 900 million 5.0% privately placed notes maturing on September 22, 2015. These CAD 900 million senior notes were subsequently exchanged for substantially identical CAD 900 million senior notes which were quantified by way of a prospectus in Canada. In connection with an internal corporate reorganization, Molson Coors International LP ("MCI LP") was subsequently added as a co-issuer of the CAD 900 million senior notes in 2007. The $300 million senior notes were repaid in 2010. The continuous disclosure requirements applicable to MC Capital Finance in Canada are satisfied through the consolidating financial information in respect of MC Capital Finance, MCI LP and other subsidiary guarantors of the CAD 900 million senior notes as currently presented within the Subsidiary Guarantors column.
	None of our other outstanding debt is publicly registered, and it is all guaranteed on a senior and unsecured basis by the Parent Guarantor and Subsidiary Guarantors. These guarantees are full and unconditional and joint and several. See Note 11, "Debt" for details of all debt issued and outstanding as of March 31, 2014.
	Presentation
	Effective the first quarter of 2014, we changed our interim accounting for advertising expenses and have applied the change to our historical interim periods retrospectively. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further information. Note that we do not consider the impacts material to the presentation of our interim guarantor condensed consolidating statements of operations or condensed consolidating statement of cash flows.
	During the third quarter of 2013, we identified that we had incorrectly recorded tax adjustments related to certain foreign currency movements in the financial statements for both the first and second quarters of 2013. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further information. We have revised comprehensive income (loss) attributable to MCBC in the condensed consolidating statement of operations for the three months ended March 30, 2013, and will revise amounts for the three and six months ended June 29, 2013 in future filings. The impact of correcting these errors has been reflected in our condensed consolidating statement of operations for the nine months ended September 28, 2013. This revision, in addition to the change in accounting described above, resulted in adjustments to comprehensive income (loss) attributable to MCBC within the condensed consolidating statement of operations for the Parent Guarantor from $(206.2) million, as previously reported, to $(232.7) million, as adjusted, for the three months ended March 30, 2013, $225.9 million, as previously reported, to $180.6 million, as adjusted, for the three months ended June 29, 2013, and $19.7 million, as previously reported, to $(52.1) million, as adjusted, for the six months ended June 29, 2013.
	The following information sets forth the condensed consolidating statements of operations for the three months ended March 31, 2014, and March 30, 2013, condensed consolidating balance sheets as of March 31, 2014, and December 31, 2013, and condensed consolidating statements of cash flows for the three months ended March 31, 2014, and March 30, 2013. Investments in subsidiaries are accounted for under the equity method; accordingly, entries necessary to consolidate the Parent Guarantor and all of our guarantor and non-guarantor subsidiaries are reflected in the eliminations column. In the opinion of management, separate complete financial statements of MCBC and the Subsidiary Guarantors would not provide additional material information that would be useful in assessing their financial composition.
	MOLSON COORS BREWING COMPANY AND SUBSIDIARIES
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
	FOR THE THREE MONTHS ENDED MARCH 31, 2014
	(IN MILLIONS)
	(UNAUDITED)
		Parent			Subsidiary			Subsidiary			Eliminations			Consolidated
		Guarantor and			Guarantors			Non
		2012 Issuer						Guarantors
	Sales	$	8		$	950.8		$	259		$	(39.5	)	$	1,178.30
	Excise taxes	—			(304.9		)	(57.4		)	—			(362.3		)
	Net sales	8			645.9			201.6			(39.5		)	816
	Cost of goods sold	—			(404.7		)	(142.8		)	24.3			(523.2		)
	Gross profit	8			241.2			58.8			(15.2		)	292.8
	Marketing, general and administrative expenses	(31.2		)	(173.8		)	(74.1		)	15.2			(263.9		)
	Special items, net	—			(10.7		)	63.2			—			52.5
	Equity income (loss) in subsidiaries	201.4			(33.7		)	21.2			(188.9		)	—
	Equity income in MillerCoors	—			122.8			—			—			122.8
	Operating income (loss)	178.2			145.8			69.1			(188.9		)	204.2
	Interest income (expense), net	(21.4		)	75.8			(89.8		)	—			(35.4		)
	Other income (expense), net	0.3			2			(1.5		)	—			0.8
	Income (loss) from continuing operations before income taxes	157.1			223.6			(22.2		)	(188.9		)	169.6
	Income tax benefit (expense)	6.3			(15.3		)	4.2			—			(4.8		)
	Net income (loss) from continuing operations	163.4			208.3			(18.0		)	(188.9		)	164.8
	Income (loss) from discontinued operations, net of tax	—			—			(1.9		)	—			(1.9		)
	Net income (loss) including noncontrolling interests	163.4			208.3			(19.9		)	(188.9		)	162.9
	Less: Net (income) loss attributable to noncontrolling interests	—			—			0.5			—			0.5
	Net income (loss) attributable to MCBC	$	163.4		$	208.3		$	(19.4	)	$	(188.9	)	$	163.4
	Comprehensive income (loss) attributable to MCBC	$	1.9		$	94		$	(21.9	)	$	(72.1	)	$	1.9
	MOLSON COORS BREWING COMPANY AND SUBSIDIARIES
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
	FOR THE THREE MONTHS ENDED MARCH 30, 2013
	(IN MILLIONS)
	(UNAUDITED)
		Parent			Subsidiary			Subsidiary			Eliminations			Consolidated
		Guarantor and			Guarantors			Non
		2012 Issuer						Guarantors
	Sales	$	3.9		$	972.8		$	240.4		$	(32.3	)	$	1,184.80
	Excise taxes	—			(303.8		)	(52.5		)	—			(356.3		)
	Net sales	3.9			669			187.9			(32.3		)	828.5
	Cost of goods sold	—			(427.7		)	(146.7		)	27.3			(547.1		)
	Gross profit	3.9			241.3			41.2			(5.0		)	281.4
	Marketing, general and administrative expenses	(37.1		)	(184.3		)	(77.5		)	5			(293.9		)
	Special items, net	(0.3		)	(0.8		)	(0.4		)	—			(1.5		)
	Equity income (loss) in subsidiaries	99.6			(151.3		)	35.2			16.5			—
	Equity income in MillerCoors	—			117.4			—			—			117.4
	Operating income (loss)	66.1			22.3			(1.5		)	16.5			103.4
	Interest income (expense), net	(26.0		)	48.1			(97.0		)	—			(74.9		)
	Other income (expense), net	(13.6		)	30.8			(12.9		)	—			4.3
	Income (loss) from continuing operations before income taxes	26.5			101.2			(111.4		)	16.5			32.8
	Income tax benefit (expense)	2			(3.0		)	(1.0		)	—			(2.0		)
	Net income (loss) from continuing operations	28.5			98.2			(112.4		)	16.5			30.8
	Income (loss) from discontinued operations, net of tax	—			—			(0.9		)	—			(0.9		)
Net income (loss) including noncontrolling interests	28.5			98.2			(113.3		)	16.5			29.9
Less: Net (income) loss attributable to noncontrolling interests	—			—			(1.4		)	—			(1.4		)
Net income (loss) attributable to MCBC	$	28.5		$	98.2		$	(114.7	)	$	16.5		$	28.5
Comprehensive income (loss) attributable to MCBC	$	(232.7	)	$	(124.5	)	$	(226.0	)	$	350.5		$	(232.7	)
MOLSON COORS BREWING COMPANY AND SUBSIDIARIES
CONDENSED CONSOLIDATING BALANCE SHEETS
AS OF MARCH 31, 2014
(IN MILLIONS)
(UNAUDITED)
	Parent			Subsidiary			Subsidiary			Eliminations			Consolidated
	Guarantor and			Guarantors			Non
	2012 Issuer						Guarantors
Assets
Current assets:
Cash and cash equivalents	$	28.6		$	108.3		$	200.7		$	—		$	337.6
Accounts receivable, net	0.4			405.8			145.9			—			552.1
Other receivables, net	65.8			57.6			37.9			—			161.3
Total inventories, net	—			215.1			48.1			—			263.2
Other current assets, net	9.1			64.1			50.5			—			123.7
Deferred tax assets	—			1.4			47.8			(2.8		)	46.4
Intercompany accounts receivable	—			3,340.50			167.8			(3,508.3		)	—
Total current assets	103.9			4,192.80			698.7			(3,511.1		)	1,484.30
Properties, net	31.7			1,241.70			662.8			—			1,936.20
Goodwill	—			1,155.90			1,238.80			—			2,394.70
Other intangibles, net	—			4,130.70			2,521.60			—			6,652.30
Investment in MillerCoors	—			2,608.50			—			—			2,608.50
Net investment in and advances to subsidiaries	12,930.30			3,428.50			6,500.60			(22,859.4		)	—
Deferred tax assets	8.5			1.9			0.1			5.2			15.7
Other assets	34.8			177.1			62.2			—			274.1
Total assets	$	13,109.20		$	16,937.10		$	11,684.80		$	(26,365.3	)	$	15,365.80
Liabilities and equity
Current liabilities:
Accounts payable and other current liabilities	$	67.7		$	845.3		$	354		$	—		$	1,267.00
Deferred tax liabilities	10.6			159.5			—			(2.8		)	167.3
Current portion of long-term debt and short-term borrowings	351.1			15			264.3			—			630.4
Discontinued operations	—			—			7.1			—			7.1
Intercompany accounts payable	2,173.40			258.1			1,076.80			(3,508.3		)	—
Total current liabilities	2,602.80			1,277.90			1,702.20			(3,511.1		)	2,071.80
Long-term debt	1,896.20			1,266.00			0.1			—			3,162.30
Pension and postretirement benefits	2.6			427			6.9			—			436.5
Deferred tax liabilities	—			0.2			927.1			5.2			932.5
Other liabilities	9.8			22.9			87.3			—			120
Discontinued operations	—			—			18			—			18
Intercompany notes payable	—			1,546.70			5,824.50			(7,371.2		)	—
Total liabilities	4,511.40			4,540.70			8,566.10			(10,877.1		)	6,741.10
MCBC stockholders' equity	8,600.90			18,403.80			4,455.60			(22,859.4		)	8,600.90
Intercompany notes receivable	(3.1		)	(6,007.4		)	(1,360.7		)	7,371.20			—
Total stockholders' equity	8,597.80			12,396.40			3,094.90			(15,488.2		)	8,600.90
Noncontrolling interests	—			—			23.8			—			23.8
Total equity	8,597.80			12,396.40			3,118.70			(15,488.2		)	8,624.70
Total liabilities and equity	$	13,109.20		$	16,937.10		$	11,684.80		$	(26,365.3	)	$	15,365.80
MOLSON COORS BREWING COMPANY AND SUBSIDIARIES
CONDENSED CONSOLIDATING BALANCE SHEETS
AS OF DECEMBER 31, 2013
(IN MILLIONS)
(UNAUDITED)
	Parent			Subsidiary			Subsidiary			Eliminations			Consolidated
	Guarantor and			Guarantors			Non
	2012 Issuer						Guarantors
Assets
Current assets:
Cash and cash equivalents	$	90.6		$	248.7		$	103		$	—		$	442.3
Accounts receivable, net	0.7			466.3			136.6			—			603.6
Other receivables, net	48			56.5			19.9			—			124.4
Total inventories, net	—			166.8			38.5			—			205.3
Other current assets, net	8.4			60.1			43.2			—			111.7
Deferred tax assets	—			—			53.3			(2.9		)	50.4
Intercompany accounts receivable	—			3,186.80			196.5			(3,383.3		)	—
Total current assets	147.7			4,185.20			591			(3,386.2		)	1,537.70
Properties, net	31			1,282.80			656.3			—			1,970.10
Goodwill	—			1,161.80			1,256.90			—			2,418.70
Other intangibles, net	—			4,292.30			2,532.80			—			6,825.10
Investment in MillerCoors	—			2,506.50			—			—			2,506.50
Net investment in and advances to subsidiaries	12,860.90			3,303.70			6,654.90			(22,819.5		)	—
Deferred tax assets	28.8			3.1			1			5.4			38.3
Other assets	35.5			175			73.2			—			283.7
Total assets	$	13,103.90		$	16,910.40		$	11,766.10		$	(26,200.3	)	$	15,580.10
Liabilities and equity
Current liabilities:
Accounts payable and other current liabilities	$	52.2		$	998.6		$	359.5		$	—		$	1,410.30
Deferred tax liabilities	8.8			132.2			—			(2.9		)	138.1
Current portion of long-term debt and short-term borrowings	379.7			61.8			145.4			—			586.9
Discontinued operations	—			—			6.8			—			6.8
Intercompany accounts payable	2,120.70			228.3			1,034.30			(3,383.3		)	—
Total current liabilities	2,561.40			1,420.90			1,546.00			(3,386.2		)	2,142.10
Long-term debt	1,896.20			1,316.60			0.2			—			3,213.00
Pension and postretirement benefits	2.6			453.3			6.7			—			462.6
Deferred tax liabilities	—			—			906			5.4			911.4
Other liabilities	8			22.4			139.5			—			169.9
Discontinued operations	—			—			17.3			—			17.3
Intercompany notes payable	—			1,693.90			6,138.90			(7,832.8		)	—
Total liabilities	4,468.20			4,907.10			8,754.60			(11,213.6		)	6,916.30
MCBC stockholders' equity	8,638.90			18,332.50			4,487.00			(22,819.5		)	8,638.90
Intercompany notes receivable	(3.2		)	(6,329.2		)	(1,500.4		)	7,832.80			—
Total stockholders' equity	8,635.70			12,003.30			2,986.60			(14,986.7		)	8,638.90
Noncontrolling interests	—			—			24.9			—			24.9
Total equity	8,635.70			12,003.30			3,011.50			(14,986.7		)	8,663.80
Total liabilities and equity	$	13,103.90		$	16,910.40		$	11,766.10		$	(26,200.3	)	$	15,580.10
MOLSON COORS BREWING COMPANY AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
FOR THE THREE MONTHS ENDED MARCH 31, 2014
(IN MILLIONS)
(UNAUDITED)
	Parent			Subsidiary			Subsidiary			Eliminations			Consolidated
	Guarantor and			Guarantors			Non
	2012 Issuer						Guarantors
Net cash provided by (used in) operating activities	$	8		$	98.1		$	43.6		$	—		$	149.7
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to properties	(3.0		)	(42.5		)	(19.8		)	—			(65.3		)
Proceeds from sales of properties and other assets	—			1.4			0.3			—			1.7
Investment in MillerCoors	—			(354.9		)	—			—			(354.9		)
Return of capital from MillerCoors	—			259.5			—			—			259.5
Loan repayments	—			2.2			—			—			2.2
Loan advances	—			(1.6		)	(15.1		)	—			(16.7		)
Net intercompany investing activity	—			140.1			127.5			(267.6		)	—
Net cash provided by (used in) investing activities	(3.0		)	4.2			92.9			(267.6		)	(173.5		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Exercise of stock options under equity compensation plans	20.2			—			—			—			20.2
Excess tax benefits from share-based compensation	2			—			—			—			2
Dividends paid	(60.2		)	—			(8.0		)	—			(68.2		)
Payments for purchase of noncontrolling interest	—			—			(0.2		)				(0.2		)
Payments on long-term debt and capital lease obligations	(0.4		)	(46.4		)	(0.1		)	—			(46.9		)
Proceeds from short-term borrowings	—			—			20.9			—			20.9
Payments on short-term borrowings	—			—			(12.5		)	—			(12.5		)
Payments on settlement of derivative instruments	—			(65.2		)	—			—			(65.2		)
Net proceeds from (payments on) revolving credit facilities and commercial paper	(28.6		)	—			(13.2		)	—			(41.8		)
Change in overdraft balances and other	—			—			111.5			—			111.5
Net intercompany financing activity	—			(127.5		)	(140.1		)	267.6			—
Net cash provided by (used in) financing activities	(67.0		)	(239.1		)	(41.7		)	267.6			(80.2		)
CASH AND CASH EQUIVALENTS:
Net increase (decrease) in cash and cash equivalents	(62.0		)	(136.8		)	94.8			—			(104.0		)
Effect of foreign exchange rate changes on cash and cash equivalents	—			(3.6		)	2.9			—			(0.7		)
Balance at beginning of year	90.6			248.7			103			—			442.3
Balance at end of period	$	28.6		$	108.3		$	200.7		$	—		$	337.6
MOLSON COORS BREWING COMPANY AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
FOR THE THREE MONTHS ENDED MARCH 30, 2013
(IN MILLIONS)
(UNAUDITED)
	Parent			Subsidiary			Subsidiary			Eliminations			Consolidated
	Guarantor and			Guarantors			Non
	2012 Issuer						Guarantors
Net cash provided by (used in) operating activities	$	(58.0	)	$	174.6		$	2.5		$	(0.7	)	$	118.4
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to properties	(1.6		)	(30.2		)	(36.5		)	—			(68.3		)
Proceeds from sales of properties and other assets	—			1.2			2.5			—			3.7
Investment in MillerCoors	—			(331.8		)	—			—			(331.8		)
Return of capital from MillerCoors	—			222.4			—			—			222.4
Loan repayments	—			2.6			—			—			2.6
Loan advances	—			(2.5		)	—			—			(2.5		)
Net intercompany investing activity	—			(9.4		)	—			9.4			—
Net cash provided by (used in) investing activities	(1.6		)	(147.7		)	(34.0		)	9.4			(173.9		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Exercise of stock options under equity compensation plans	27.2			—			—			—			27.2
Excess tax benefits from share-based compensation	1.6			—			—			—			1.6
Dividends paid	(51.2		)	—			(7.7		)	0.7			(58.2		)
Payments for purchase of noncontrolling interest	—			—			(0.2		)	—			(0.2		)
Proceeds from short-term borrowings	—			—			5.9			—			5.9
Payments on short-term borrowings	—			—			(13.8		)	—			(13.8		)
Net proceeds from (payments on) revolving credit facilities	—			—			(1.2		)	—			(1.2		)
Change in overdraft balances and other	—			(0.2		)	3.7			—			3.5
Net intercompany financing activity	—			—			9.4			(9.4		)	—
Net cash provided by (used in) financing activities	(22.4		)	(0.2		)	(3.9		)	(8.7		)	(35.2		)
CASH AND CASH EQUIVALENTS:
Net increase (decrease) in cash and cash equivalents	(82.0		)	26.7			(35.4		)	—			(90.7		)
Effect of foreign exchange rate changes on cash and cash equivalents	—			(16.7		)	(5.1		)	—			(21.8		)
Balance at beginning of year	189.8			249.3			184.9			—			624
Balance at end of period	$	107.8		$	259.3		$	144.4		$	—		$	511.5

Basis_of_Presentation_and_Summ1

Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation and Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]	'
	The quarterly impact of the change in accounting policy on marketing, general and administrative expenses and the associated impact on income tax expense, as well as the impact to certain subtotals and diluted earnings per share within our unaudited condensed consolidated statement of operations, is as follows:
		Three Months Ended						Three Months Ended						Three Months Ended						Three Months Ended
		30-Mar-13						29-Jun-13						28-Sep-13						31-Dec-13
		As Reported			As Adjusted			As Reported			As Adjusted			As Reported			As Adjusted			As Reported			As Adjusted
		(In millions)
	Marketing, general and administrative expenses	$	(285.3	)	$	(293.9	)	$	(304.3	)	$	(319.5	)	$	(307.8	)	$	(290.8	)	$	(296.4	)	$	(289.6	)
	Income (loss) from continuing operations before income taxes	$	41.4		$	32.8		$	312.4		$	297.2		$	155.4		$	172.4		$	145.3		$	152.1
	Income tax benefit (expense)	$	(3.5	)	$	(2.0	)	$	(34.1	)	$	(30.0	)	$	(32.7	)	$	(37.2	)	$	(13.7	)	$	(14.8	)
	Net income (loss) attributable to Molson Coors Brewing Company	$	35.6		$	28.5		$	278.4		$	267.3		$	121.8		$	134.3		$	131.5		$	137.2
	Diluted net income (loss) attributable to Molson Coors Brewing Company per share	$	0.2		$	0.16		$	1.51		$	1.45		$	0.66		$	0.73		$	0.71		$	0.74
	As noted above, under our historical treatment, advertising expenses were not deferred from one fiscal year to the next. Therefore, the change in interim accounting had no impact on full year consolidated results.
	The following table shows the impact to income (loss) from continuing operations before income taxes by segment as a result of the change in accounting policy for advertising expense. The full impact of this change in presentation is reflected within marketing, general and administrative expenses.
	Income (loss) from continuing operations before income taxes by segment:
		Three Months Ended						Three Months Ended						Three Months Ended						Three Months Ended
		30-Mar-13						29-Jun-13						28-Sep-13						31-Dec-13
		As Reported			As Adjusted			As Reported			As Adjusted			As Reported			As Adjusted			As Reported			As Adjusted
		(In millions)
	Canada	$	36.4		$	28.4		$	137.3		$	128.6		$	128.7		$	143.6		$	60.9		$	62.7
	U.S.	$	117.4		$	117.4		$	172.6		$	172.6		$	148.3		$	148.3		$	100.7		$	100.7
	Europe	$	(3.7	)	$	(5.2	)	$	81.6		$	75.8		$	(69.5	)	$	(67.4	)	$	25.9		$	31.1
	MCI	$	(6.1	)	$	(5.2	)	$	(3.3	)	$	(4.0	)	$	(2.4	)	$	(2.4	)	$	—		$	(0.2	)
	Corporate	$	(102.6	)	$	(102.6	)	$	(75.8	)	$	(75.8	)	$	(49.7	)	$	(49.7	)	$	(42.2	)	$	(42.2	)
Schedule of Error Corrections and Prior Period Adjustments	'
	During the third quarter of 2013, we identified that we had incorrectly recorded tax adjustments related to certain foreign currency movements in the financial statements for both the first and second quarters of 2013 that misstated non-current deferred tax assets, accumulated other comprehensive income (loss), and comprehensive income by immaterial amounts. We have revised the foreign currency translation adjustments, net of tax, included in other comprehensive income (loss) and comprehensive income (loss) in the unaudited condensed consolidated statement of comprehensive income (loss) for the three months ended March 30, 2013, and will revise in the unaudited condensed consolidated statements of comprehensive income (loss) for the three and six months ended June 29, 2013, in future filings. These errors were corrected in the third quarter of 2013 and therefore had no impact on the unaudited condensed consolidated balance sheet as of December 31, 2013. Note that the as adjusted amounts below also reflect the adjustments related to the change in interim accounting for advertising expense as discussed above.
		Three Months Ended						Three Months Ended						Six Months Ended
		30-Mar-13						29-Jun-13						29-Jun-13
		As Reported			As Adjusted			As Reported			As Adjusted			As Reported			As Adjusted
		(In millions)
	Foreign currency translation adjustments, net of tax	$	(261.3	)	$	(280.7	)	$	(79.4	)	$	(113.6	)	$	(340.7	)	$	(394.3	)
	Total other comprehensive income (loss), net of tax	$	(241.8	)	$	(261.2	)	$	(52.5	)	$	(86.7	)	$	(294.3	)	$	(347.9	)
	Comprehensive income (loss) attributable to Molson Coors Brewing Company	$	(206.2	)	$	(232.7	)	$	225.9		$	180.6		$	19.7		$	(52.1	)

Segment_Reporting_Tables

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Net sales by segment	'
	The following table presents net sales by segment:
		Three Months Ended
		March 31, 2014			March 30, 2013
		(In millions)
	Canada	$	347.1		$	395.6
	Europe	437.6			406.4
	MCI	32.2			27
	Corporate	0.3			0.3
	Eliminations(1)	(1.2		)	(0.8		)
	Consolidated	$	816		$	828.5
	-1	Represents inter-segment sales from the Europe segment to the MCI segment.
Income (loss) from continuing operations before income taxes by segment	'
	The following table presents income (loss) from continuing operations before income taxes by segment:
		Three Months Ended
		March 31, 2014			March 30, 2013(1)
		(In millions)
	Canada	$	88.3		$	28.4
	U.S.	122.8			117.4
	Europe	27			(5.2		)
	MCI	(3.0		)	(5.2		)
	Corporate	(65.5		)	(102.6		)
	Consolidated	$	169.6		$	32.8
	-1	Amounts have been adjusted to reflect the change in interim accounting for advertising expenses. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further discussion.
Total assets by segment	'
	The following table presents total assets by segment:
		As of
		March 31, 2014			December 31, 2013
		(In millions)
	Canada	$	5,771.70		$	6,103.20
	U.S.	2,608.50			2,506.50
	Europe	6,678.80			6,547.70
	MCI	78.3			83.3
	Corporate	228.5			339.4
	Consolidated	$	15,365.80		$	15,580.10

Investments_Tables

Investments (Tables)	3 Months Ended
	Mar. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]	'
Summarized financial information of MillerCoors	'
	Summarized financial information for MillerCoors is as follows:
	Condensed Balance Sheets
		As of
		March 31, 2014			December 31, 2013
		(In millions)
	Current assets	$	995.1		$	798.4
	Non-current assets	8,958.70			8,989.30
	Total assets	$	9,953.80		$	9,787.70
	Current liabilities	$	933.4		$	950.1
	Non-current liabilities	1,288.60			1,346.20
	Total liabilities	2,222.00			2,296.30
	Noncontrolling interests	20.9			20.7
	Owners' equity	7,710.90			7,470.70
	Total liabilities and equity	$	9,953.80		$	9,787.70
	The following represents our proportionate share in MillerCoors' equity:
		As of
		March 31, 2014			December 31, 2013
		(In millions, except percentages)
	MillerCoors owners' equity	$	7,710.90		$	7,470.70
	MCBC economic interest	42		%	42		%
	MCBC proportionate share in MillerCoors' equity	3,238.60			3,137.70
	Difference between MCBC contributed cost basis and proportionate share of the underlying equity in net assets of MillerCoors(1)	(665.1		)	(666.2		)
	Accounting policy elections	35			35
	Investment in MillerCoors	$	2,608.50		$	2,506.50
	-1	Our net investment in MillerCoors is based on the carrying values of the net assets contributed to the joint venture which is less than our proportionate share of underlying equity (42%) of MillerCoors (contributed by both Coors Brewing Company ("CBC") and Miller Brewing Company ("Miller")). This basis difference, with the exception of certain non-amortizing items (goodwill, land, etc.), is being amortized as additional equity income over the remaining useful lives of the contributed long-lived amortizing assets.
	Results of Operations
		Three Months Ended
		March 31, 2014			March 31, 2013
		(In millions)
	Net sales	$	1,790.40		$	1,788.30
	Cost of goods sold	(1,094.1		)	(1,088.7		)
	Gross profit	$	696.3		$	699.6
	Operating income	$	297.5		$	274.5
	Net income attributable to MillerCoors	$	291.2		$	271.9
MCBC's proportional share in MillerCoors of net income reported under the equity method	'
	The following represents our proportionate share in net income attributable to MillerCoors reported under the equity method:
		Three Months Ended
		March 31, 2014			March 30, 2013
		(In millions, except percentages)
	Net income attributable to MillerCoors	$	291.2		$	271.9
	MCBC economic interest	42		%	42		%
	MCBC proportionate share of MillerCoors net income	122.3			114.2
	Amortization of the difference between MCBC contributed cost basis and proportionate share of the underlying equity in net assets of MillerCoors	1.1			1.2
	Share-based compensation adjustment(1)	(0.6		)	2
	Equity income in MillerCoors	$	122.8		$	117.4
	-1	The net adjustment is to eliminate all share-based compensation impacts related to pre-existing SABMiller plc equity awards held by former Miller employees employed by MillerCoors.
Summary of transactions with MillerCoors	'
	The following table summarizes our transactions with MillerCoors:
		Three Months Ended
		March 31, 2014			March 30, 2013
		(In millions)
	Beer sales to MillerCoors	$	2.6		$	4.4
	Beer purchases from MillerCoors	$	7.1		$	3.1
	Service agreement costs and other charges to MillerCoors	$	0.4		$	0.6
	Service agreement costs and other charges from MillerCoors	$	0.2		$	0.2
Schedules of Consolidated Investments	'
	The following summarizes the assets and liabilities of our consolidated VIEs (including noncontrolling interests):
		As of
		March 31, 2014						December 31, 2013
		Total Assets			Total Liabilities			Total Assets		Total Liabilities
		(In millions)
	Grolsch	$	6.9		$	2.3		$	5.6	$	1.7
	Cobra U.K.	$	31.7		$	0.4		$	36.5	$	1.9

ShareBased_Payments_Tables

Share-Based Payments (Tables)	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of Share-based payment Award, Performance Share Units, Valuation Assumptions [Table Text Block]	'
	The fair value of the market metric for each PSU granted in the first quarter of 2014 and 2013 was determined on the date of grant using a Monte Carlo model to simulate total shareholder return for MCBC and peer companies with the following weighted-average assumptions:
		Three Months Ended
		March 31, 2014		March 30, 2013
	Risk-free interest rate	0.72%		0.33%
	Dividend yield	2.57%		2.88%
	Volatility range	12.45%-72.41%		12.18%-69.37%
	Weighted-average volatility	21.72%		21.13%
	Expected term (years)	2.82		2.83
	Weighted-average fair market value	$58.69		$43.10
Schedule of components of share-based compensation expense	'
	The following table summarizes share-based compensation expense:
		Three Months Ended
		March 31, 2014				March 30, 2013
		(In millions)
	Pretax compensation expense	$	8.3			$	11.1
	Tax benefit	(2.7		)		(3.4		)
	After-tax compensation expense	$	5.6			$	7.7
Schedule of stock options and SOSARs outstanding and the activity for the period	'
	The following table represents the summary of stock options and stock-only stock appreciation rights ("SOSAR") outstanding as of March 31, 2014, and the activity during the three months ended March 31, 2014:
		Shares outstanding		Weighted-average		Weighted-average		Aggregate
				exercise price per		remaining		intrinsic value
				share		contractual life
						(years)
		(In millions, except per share amounts and years)
	Outstanding as of December 31, 2013	3.5		$43.41		4.57		$	45.1
	Granted	0.2		$58.24
	Exercised	-0.6		$42.19
	Forfeited	-0.1		$44.24
	Outstanding as of March 31, 2014	3		$44.46		4.73		$	43.2
	Exercisable at March 31, 2014	2.6		$43.66		4.03		$	39.3
Schedule of non-vested RSUs, PUs and DSUs outstanding and the activity for the period	'
	The following table represents non-vested RSUs, DSUs, PSUs and PUs as of March 31, 2014, and the activity during the three months ended March 31, 2014:
		RSUs and DSUs					PUs				PSUs
		Units			Weighted-average		Units			Weighted-average	Units	Weighted-average
					grant date fair value					fair value		grant date fair value
					per unit					per unit		per unit
		(In millions, except per unit amounts)
	Non-vested as of December 31, 2013	0.7			$42.08		1			$2.87	0.2	$43.10
	Granted	0.2			$58.17		—			$—	0.2	$58.69
	Vested	(0.2	)		$40.27		(0.5	)		$6.16	—	$—
	Forfeited	—			$—		—			$—	—	$—
	Non-vested as of March 31, 2014	0.7			$46.55		0.5			$0.43	0.4	$50.44
Schedule of share-based compensation weighted average assumptions	'
	The fair value of each option granted in the first quarter of 2014 and 2013 was determined on the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions:
		Three Months Ended
		March 31, 2014		March 30, 2013
	Risk-free interest rate	2.29%		1.43%
	Dividend yield	2.57%		2.88%
	Volatility range	22.66%-26.57%		22.39%-25.90%
	Weighted-average volatility	25.59%		25.02%
	Expected term (years)	7.5		7.7
	Weighted-average fair market value	$12.78		$8.39

Special_items_Tables

Special items (Tables)	3 Months Ended
	Mar. 31, 2014
Extraordinary and Unusual Items [Abstract]	'
Special items recorded by segment	'
	The table below summarizes special items recorded by segment:
		Three Months Ended
		March 31, 2014			March 30, 2013
		(In millions)
	Employee related charges
	Restructuring(1)
	Canada	$	5.3		$	1.3
	Europe	0.5			3.3
	Corporate	—			0.3
	Special termination benefits
	Canada(2)	—			0.8
	Impairments or asset abandonment charges
	Canada - Intangible asset write-off(3)	4.9			—
	Unusual or infrequent items
	Europe - Release of non-income-related tax reserve(4)	—			(4.2		)
	Termination fees and other (gains)/losses
	Canada - Termination fee income(3)	(63.2		)	—
	Special items, net	$	(52.5	)	$	1.5
	-1	During the three months ended March 31, 2014, and March 30, 2013, we recognized expenses associated with restructuring programs focused on labor savings and organizational effectiveness across all functions. See further discussion of restructuring activities below.
	-2	During the three months ended March 30, 2013, we recognized charges related to special termination benefits as eligible employees elected early retirement offered as a result of the ratification of collective bargaining agreements with MCC's brewery groups.
	-3	See Note 4, "Investments" for further discussion related to the termination of MMI operations and related intangible asset charge.
	-4	During 2009, we established a non-income-related tax reserve of $10.4 million that was recorded as a special item. In the first quarter of 2013, the remaining outstanding amount of this non-income-related tax reserve was fully released.
Change in the restructuring accrual	'
	The table below summarizes the activity in the restructuring accruals by segment:
		Canada			Europe			MCI			Corporate			Total
		(In millions)
	Total at December 31, 2013	$	9.7		$	13.6		$	0.5		$	0.9		$	24.7
	Charges incurred	5.3			0.5			—			—			5.8
	Payments made	(3.6		)	(0.6		)	(0.1		)	(0.2		)	(4.5		)
	Foreign currency and other adjustments	(0.4		)	0.2			—			—			(0.2		)
	Total at March 31, 2014	$	11		$	13.7		$	0.4		$	0.7		$	25.8
		Canada			Europe			MCI			Corporate			Total
		(In millions)
	Total at December 29, 2012	$	7.1		$	13.4		$	2.8		$	1.5		$	24.8
	Charges incurred	1.3			3.3			—			0.3			4.9
	Payments made	(2.9		)	(2.6		)	(1.7		)	(0.3		)	(7.5		)
	Foreign currency and other adjustments	(0.2		)	(0.4		)	—			—			(0.6		)
	Total at March 30, 2013	$	5.3		$	13.7		$	1.1		$	1.5		$	21.6

Other_Income_and_Expense_Table

Other Income and Expense (Tables)	3 Months Ended
	Mar. 31, 2014
Other Income and Expenses [Abstract]	'
Summarization of other income and expenses	'
	The table below summarizes other income and expense:
		Three Months Ended
		March 31, 2014		March 30, 2013
		(In millions)
	Gain on sale of non-operating asset(1)	$	—	$	1.2
	Gain (loss) from other foreign exchange and derivative activity(2)	0.8		2.7
	Other, net	—		0.4
	Other income (expense), net	$	0.8	$	4.3
	-1	During the first quarter of 2013, we realized a gain for proceeds received related to a non-income-related tax settlement resulting from historical activity within our former investment in the Montréal Canadiens.
	-2	Included in this amount are gains of $0.5 million and $20.1 million for the three months ended March 31, 2014, and March 30, 2013, respectively, related to foreign currency movements on foreign-denominated financing instruments entered into in conjunction with the closing of the Acquisition. We also recorded a net loss of $10.6 million for the three months ended March 30, 2013, related to foreign cash positions and foreign exchange contracts entered into to hedge our risk associated with the payment of this foreign-denominated debt. Additionally, we recorded net gains of $0.3 million and losses of $6.8 million related to other foreign exchange and derivative activity during the three months ended March 31, 2014, and March 30, 2013, respectively.

Earnings_per_Share_EPS_Tables

Earnings per Share ("EPS") (Tables)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Effect of dilutive securities on diluted earnings per share	'
	The following summarizes the effect of dilutive securities on diluted EPS:
		Three Months Ended
		March 31, 2014				March 30, 2013(1)
		(In millions, except per share amounts)
	Amounts attributable to MCBC
	Net income (loss) from continuing operations	$	165.3			$	29.4
	Income (loss) from discontinued operations, net of tax	(1.9		)		(0.9		)
	Net income (loss) attributable to Molson Coors Brewing Company	$	163.4			$	28.5
	Weighted-average shares for basic EPS	184.3				181.7
	Effect of dilutive securities:
	Stock options and SOSARs	0.6				0.7
	RSUs, PSUs, PUs and DSUs	0.6				0.5
	Weighted-average shares for diluted EPS	185.5				182.9
	Basic net income (loss) attributable to Molson Coors Brewing Company per share:
	From continuing operations	$	0.9			$	0.16
	From discontinued operations	(0.01		)		—
	Basic net income (loss) attributable to Molson Coors Brewing Company per share	$	0.89			$	0.16
	Diluted net income (loss) attributable to Molson Coors Brewing Company per share:
	From continuing operations	$	0.89			$	0.16
	From discontinued operations	(0.01		)		—
	Diluted net income (loss) attributable to Molson Coors Brewing Company per share	$	0.88			$	0.16
	Dividends declared and paid per share	$	0.37			$	0.32
	-1	Amounts have been adjusted to reflect the change in interim accounting for advertising expenses. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further discussion.
Anti-dilutive securities excluded from computation of diluted earnings per share	'
	The following anti-dilutive securities were excluded from the computation of the effect of dilutive securities on diluted earnings per share:
		Three Months Ended
		March 31, 2014			March 30, 2013
		(In millions)
	Stock options, SOSARs and RSUs	0.1			0.2
	Total weighted-average anti-dilutive securities	0.1			0.2

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of changes in goodwill	'
	The following summarizes the change in goodwill for the three months ended March 31, 2014:
		Canada				Europe				MCI				Consolidated
		(In millions)
	Balance at December 31, 2013	$	718.2			$	1,693.20			$	7.3			$	2,418.70
	Foreign currency translation	(27.7		)		3.5				0.2				(24.0		)
	Balance at March 31, 2014	$	690.5			$	1,696.70			$	7.5			$	2,394.70
Schedule of intangible assets excluding goodwill	'
	The following table presents details of our intangible assets, other than goodwill, as of March 31, 2014:
		Useful life		Gross				Accumulated				Net
								amortization
		(Years)		(In millions)
	Intangible assets subject to amortization:
	Brands	3 - 40		$	531.2			$	(226.6	)		$	304.6
	Distribution rights	2 - 23		262.7				(214.4		)		48.3
	Patents and technology and distribution channels	3 - 10		36.4				(33.3		)		3.1
	Other	2		1.2				(1.2		)		—
	Intangible assets not subject to amortization:
	Brands	Indefinite		5,363.30				—				5,363.30
	Distribution networks	Indefinite		915.5				—				915.5
	Other	Indefinite		17.5				—				17.5
	Total			$	7,127.80			$	(475.5	)		$	6,652.30
	The following table presents details of our intangible assets, other than goodwill, as of December 31, 2013:
		Useful life		Gross				Accumulated				Net
								amortization
		(Years)		(In millions)
	Intangible assets subject to amortization:
	Brands	3 - 40		$	537.5			$	(224.7	)		$	312.8
	Distribution rights	2 - 23		314.1				(255.0		)		59.1
	Patents and technology and distribution channels	3 - 10		36.2				(32.8		)		3.4
	Other	2		1.2				(1.2		)		—
	Intangible assets not subject to amortization:
	Brands	Indefinite		5,482.30				—				5,482.30
	Distribution networks	Indefinite		952.3				—				952.3
	Other	Indefinite		15.2				—				15.2
	Total			$	7,338.80			$	(513.7	)		$	6,825.10
Schedule of estimated amortization expense related to intangible assets	'
	Based on foreign exchange rates as of March 31, 2014, the estimated future amortization expense of intangible assets is as follows:
	Fiscal year	Amount
		(In millions)
	2014 - remaining	$	31
	2015	$	38.9
	2016	$	38.9
	2017	$	13.8
	2018	$	12

Debt_Tables

Debt (Tables)	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
Total long-term borrowings	'
	Our total borrowings as of March 31, 2014, and December 31, 2013, were composed of the following:
		As of
		March 31, 2014			December 31, 2013
		(In millions)
	Senior notes:
	€500 million 0.0% convertible note due 2013(1)	$	15		$	61.8
	Canadian Dollar ("CAD") 900 million 5.0% notes due 2015	814.5			847.2
	CAD 500 million 3.95% Series A notes due 2017	452.5			470.7
	$300 million 2.0% notes due 2017	300			300
	$500 million 3.5% notes due 2022	500			500
	$1.1 billion 5.0% notes due 2042	1,100.00			1,100.00
	Other long-term debt	0.1			0.2
	Long-term credit facilities(2)	—			—
	Less: unamortized debt discounts and other	(4.8		)	(5.1		)
	Total long-term debt (including current portion)	3,177.30			3,274.80
	Less: current portion of long-term debt	(15.0		)	(61.8		)
	Total long-term debt	$	3,162.30		$	3,213.00
	Short-term borrowings(2)	$	615.4		$	525.1
	Current portion of long-term debt	15			61.8
	Current portion of long-term debt and short-term borrowings	$	630.4		$	586.9
	-1	On June 15, 2012, we issued a €500 million convertible note due December 31, 2013, which included a put conversion feature to the Seller. On August 13, 2013, the conversion feature was exercised for an agreed-upon value upon exercise of €510.9 million, consisting of €500 million in principal and €10.9 million for the conversion feature.
	On September 3, 2013, we paid the Seller in cash a total of €466.0 million ($614.7 million) consisting of €455.1 million ($600.3 million) in principal and €10.9 million ($14.4 million) for the conversion feature. Separate from the Seller's notice to put, we had made claims with regard to the representations and warranties provided to us upon close of the Acquisition related to local country regulatory matters associated with pre-acquisition periods. As of December 31, 2013, we had withheld €44.9 million ($61.8 million) from the €500 million in principal related to these outstanding claims. During the first quarter of 2014, we released €34.0 million ($46.3 million at settlement) of the amount withheld to the Seller as a result of the settlement of one of these claims. As of March 31, 2014, the remaining amount withheld was €10.9 million ($15.0 million), which we subsequently released in April 2014 for a final principal payment of €10.9 million ($15.1 million at settlement). We did not incur any interest on amounts withheld.
	The €500 million convertible note's embedded conversion feature was determined to meet the definition of a derivative required to be bifurcated and separately accounted for at fair value with changes in fair value recorded in earnings. During the first quarter of 2013, we recognized an unrealized loss of $29.5 million on the conversion feature based on the fair value movements during the quarter. The cash and non-cash interest, excluding the change in fair value of the convertible feature, resulted in an immaterial impact to our effective interest rate for the first quarter of 2013.
	-2	As of March 31, 2014, and December 31, 2013, the outstanding borrowings under the commercial paper program were $351.1 million and $379.8 million, respectively, with a weighted average effective interest rate and tenor for these outstanding borrowings of 0.42%; 26.6 days and 0.49%; 47.2 days, respectively. We have a revolving credit facility in Europe to provide €150 million on an uncommitted basis through September 2014. As of March 31, 2014, and December 31, 2013, the outstanding borrowings under this revolving credit facility were $123.9 million (€90.0 million) and $137.4 million (€100.0 million), respectively.
	As of March 31, 2014, and December 31, 2013, there were no outstanding borrowings under our $400 million or $550 million revolving credit facilities which mature in the second quarters of 2015 and 2016, respectively. As of March 31, 2014, we have $573.0 million available to draw on, as the borrowing capacity is reduced by borrowings under our commercial paper program discussed above and our letters of credit in Canada.
	As of March 31, 2014, and December 31, 2013, we had outstanding borrowings of $3.7 million and $3.1 million, respectively, under the Japanese Yen line of credit and no borrowings under the GBP and CAD facilities.
	Our Europe segment has a notional cross-border, cross-currency cash pool for the majority of its subsidiaries. As of March 31, 2014, we had $114.1 million in bank overdrafts and $139.2 million in bank cash related to the pool for a net positive position of $25.1 million. As of December 31, 2013, we were not in an overdraft position on a net basis. Also included in short-term borrowings is $22.6 million and $4.8 million related to factoring arrangements and other short-term borrowings within our Europe business as of March 31, 2014, and December 31, 2013, respectively.

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]	'
Schedule of Accumulated Other Comprehensive Income (Loss)	'
	Changes in accumulated other comprehensive income (loss) ("AOCI") for the first quarter of 2014 were as follows:
		MCBC shareholders
		Foreign				Gain (loss) on				Pension and			Equity method			Accumulated
		currency				derivative				postretirement			investments			other
		translation				instruments				benefit						comprehensive
		adjustments								adjustments						income (loss)
		(In millions)
	As of December 31, 2013	$	979.1			$	14.6			$	(556.3	)	$	(282.5	)	$	154.9
	Foreign currency translation adjustments	(126.8		)		(8.9		)		0.1			—			(135.6		)
	Unrealized gain (loss) on derivative instruments	—				21.5				—			—			21.5
	Reclassification of derivative (gain) loss to income	—				(4.7		)		—			—			(4.7		)
	Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income	—				—				8.3			—			8.3
	Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	—				—				—			4.5			4.5
	Tax benefit (expense)	(46.4		)		(5.5		)		(0.7		)	(2.9		)	(55.5		)
	As of March 31, 2014	$	805.9			$	17			$	(548.6	)	$	(280.9	)	$	(6.6	)
Schedule of Reclassifications from Accumulated Other Comprehensive Income to Earnings	'
	Reclassifications from AOCI to income for the three months ended March 31, 2014, and March 30, 2013, were as follows:
			Three Months Ended
			March 31, 2014				March 30, 2013
			Reclassifications from AOCI								Location of gain (loss)
											recognized in income
			(In millions)
	Gain/(loss) on cash flow hedges:
	Forward starting interest rate swaps		$	(0.4	)		$	(0.4	)		Interest expense, net
	Foreign currency forwards		1.6				(0.1		)		Other income (expense), net
	Foreign currency forwards		3.3				0.5				Cost of goods sold
	Commodity swaps		0.2				(0.2		)		Cost of goods sold
	Total income (loss) reclassified, before tax		4.7				(0.2		)
	Income tax benefit (expense)		(1.5		)		0.1
	Net income (loss) reclassified, net of tax		$	3.2			$	(0.1	)
	Amortization of defined benefit pension and other postretirement benefit plan items:
	Prior service benefit (cost)		$	0.6			$	0.7			-1
	Net actuarial gain (loss)		(8.9		)		(14.2		)		-1
	Total income (loss) reclassified, before tax		(8.3		)		(13.5		)
	Income tax benefit (expense)		0.7				2.9
	Net income (loss) reclassified, net of tax		$	(7.6	)		$	(10.6	)
	Total income (loss) reclassified, net of tax		$	(4.4	)		$	(10.7	)
	-1	These components of AOCI are included in the computation of net periodic pension and other postretirement benefit cost. See Note 14, "Pension and Other Postretirement Benefits" for additional details.

Derivative_Instruments_and_Hed1

Derivative Instruments and Hedging Activities (Tables)	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule of Derivative Assets and Liabilities at Fair Value	'
	The table below summarizes our derivative assets and liabilities that were measured at fair value as of March 31, 2014, and December 31, 2013.
						Fair value measurements as of March 31, 2014
		Total at March 31, 2014				Quoted prices in				Significant other				Significant
						active markets				observable inputs				unobservable
						(Level 1)				(Level 2)				inputs (Level 3)
		(In millions)
	Foreign currency forwards	$	29.9			$	—			$	29.9			$	—
	Commodity swaps	(5.8		)		—				(5.8		)		—
	Total	$	24.1			$	—			$	24.1			$	—
						Fair value measurements as of December 31, 2013
		Total at December 31, 2013				Quoted prices in				Significant other				Significant
						active markets				observable inputs				unobservable
						(Level 1)				(Level 2)				inputs (Level 3)
		(In millions)
	Cross currency swaps	$	(71.7	)		$	—			$	(71.7	)		$	—
	Foreign currency forwards	19.7				—				19.7				—
	Commodity swaps	(4.9		)		—				(4.9		)		—
	Total	$	(56.9	)		$	—			$	(56.9	)		$	—
Fair Value of Derivative Instruments in the Condensed Consolidated Balance Sheets	'
	Fair Value of Derivative Instruments in the Condensed Consolidated Balance Sheet (in millions, except for certain commodity swaps with notional amounts measured in Metric Tonnes, as noted)
		March 31, 2014
						Asset derivatives						Liability derivatives
		Notional amount				Balance sheet location		Fair value				Balance sheet location		Fair value
	Derivatives designated as hedging instruments:
	Foreign currency forwards	USD	422.6			Other current assets		$	17			Accounts payable and other current liabilities		$	—
						Other non-current assets		12.9				Other liabilities		—
	Commodity swaps	kWh	846.2			Other current assets		0.7				Accounts payable and other current liabilities		(0.8		)
						Other non-current assets		0.1				Other liabilities		(0.2		)
	Total derivatives designated as hedging instruments							$	30.7					$	(1.0	)
	Derivatives not designated as hedging instruments:
	Commodity swaps	Metric tonnes (actual)	57,222			Other current assets		$	0.2			Accounts payable and other current liabilities		$	(2.2	)
						Other non-current assets		0.1				Other liabilities		(3.7		)
	Total derivatives not designated as hedging instruments							$	0.3					$	(5.9	)
		December 31, 2013
						Asset derivatives						Liability derivatives
		Notional amount				Balance sheet location		Fair value				Balance sheet location		Fair value
	Derivatives designated as hedging instruments:
	Cross currency swaps	CAD	240.7			Other current assets		$	—			Accounts payable and other current liabilities		$	(71.7	)
	Foreign currency forwards	USD	476.1			Other current assets		11.5				Accounts payable and other current liabilities		—
						Other non-current assets		8.2				Other liabilities		—
	Commodity swaps	kWh	848.8			Other current assets		0.2				Accounts payable and other current liabilities		(0.2		)
						Other non-current assets		0.1				Other liabilities		(0.3		)
	Total derivatives designated as hedging instruments							$	20					$	(72.2	)
	Derivatives not designated as hedging instruments:
	Commodity swaps	Metric tonnes (actual)	55,653			Other current assets		$	—			Accounts payable and other current liabilities		$	(2.0	)
						Other non-current assets		—				Other liabilities		(2.7		)
	Total derivatives not designated as hedging instruments							$	—					$	(4.7	)
The Effect of Derivative Instruments on the Condensed Consolidated Statements of Operations	'
	The Pretax Effect of Derivative Instruments on the Condensed Consolidated Statement of Operations (in millions)
	For the Three Months Ended March 31, 2014
	Derivatives in cash flow hedge relationships		Amount of gain				Location of gain (loss)		Amount of gain				Location of gain (loss)		Amount of gain (loss)
			(loss) recognized				reclassified from AOCI into		(loss) recognized				recognized in income on		recognized in income
			in OCI on				income (effective portion)		from AOCI on				derivative (ineffective portion		on derivative
			derivative						derivative				and amount excluded from		(ineffective portion and
			(effective						(effective portion)				effectiveness testing)		amount excluded from
			portion)												effectiveness testing)
	Forward starting interest rate swaps		$	—			Interest expense, net		$	(0.4	)		Interest expense, net		$	—
	Foreign currency forwards		14.7				Other income (expense), net		1.6				Other income (expense), net		—
							Cost of goods sold		3.3				Cost of goods sold		—
	Commodity swaps		0.3				Cost of goods sold		0.2				Cost of goods sold		—
	Total		$	15					$	4.7					$	—
	For the Three Months Ended March 31, 2014
	Derivatives and non-derivative financial instruments in net investment hedge relationships		Amount of gain				Location of gain (loss)		Amount of gain				Location of gain (loss)		Amount of gain (loss)
			(loss) recognized in				reclassified from AOCI into		(loss) recognized				recognized in income		recognized in income
			OCI (effective portion)				income (effective portion)		from AOCI				(ineffective portion		(ineffective portion and
									(effective portion)				and amount excluded from		amount excluded from
													effectiveness testing)		effectiveness testing)
	Cross currency swaps		$	6.5			Other income (expense), net		$	—			Other income (expense), net		$	—
	Total		$	6.5					$	—					$	—
	For the Three Months Ended March 30, 2013
	Derivatives in cash flow hedge relationships		Amount of gain				Location of gain (loss)		Amount of gain				Location of gain (loss)		Amount of gain (loss)
			(loss) recognized				reclassified from AOCI into		(loss) recognized				recognized in income on		recognized in income
			in OCI on				income (effective portion)		from AOCI on				derivative (ineffective portion		on derivative
			derivative						derivative				and amount excluded from		(ineffective portion and
			(effective						(effective portion)				effectiveness testing)		amount excluded from
			portion)												effectiveness testing)
	Forward starting interest rate swaps		$	—			Interest expense, net		$	(0.4	)		Interest expense, net		$	—
	Foreign currency forwards		8.9				Other income (expense), net		(0.1		)		Other income (expense), net		—
							Cost of goods sold		0.5				Cost of goods sold		—
	Commodity swaps		0.6				Cost of goods sold		(0.2		)		Cost of goods sold		—
	Total		$	9.5					$	(0.2	)				$	—
	For the Three Months Ended March 30, 2013
	Derivatives and non-derivative financial instruments in net investment hedge relationships		Amount of gain				Location of gain (loss)		Amount of gain				Location of gain (loss)		Amount of gain (loss)
			(loss) recognized in				reclassified from AOCI into		(loss) recognized				recognized in income		recognized in income
			OCI (effective portion)				income (effective portion)		from AOCI				(ineffective portion		(ineffective portion and
									(effective portion)				and amount excluded from		amount excluded from
													effectiveness testing)		effectiveness testing)
	Cross currency swaps		$	14.2			Other income (expense), net		$	—			Other income (expense), net		$	—
	€120 million term loan due 2016		3.7				Other income (expense), net		—				Other income (expense), net		—
	Total		$	17.9					$	—					$	—
	We expect net gains of approximately $16.9 million (pre-tax) recorded in AOCI at March 31, 2014, will be reclassified into earnings within the next 12 months. The maximum length of time over which forecasted transactions are hedged at March 31, 2014, is 3.8 years, and such transactions relate to foreign exchange and commodity exposures.
Other Derivatives	'
	Other Derivatives (in millions)
	For the Three Months Ended March 31, 2014
	Derivatives not in hedging relationships		Location of gain (loss) recognized in		Amount of gain (loss) recognized in
			income on derivative		income on derivative
	Commodity swaps		Cost of goods sold		$	(1.3	)
	Total				$	(1.3	)
	For the Three Months Ended March 30, 2013
	Derivatives not in hedging relationships		Location of gain (loss) recognized in		Amount of gain (loss) recognized in
			income on derivative		income on derivative
	Equity conversion feature of debt		Interest expense, net		$	(29.7	)
			Other income (expense), net		0.2
	Commodity Swaps		Cost of goods sold		—
	Foreign currency forwards		Other income (expense), net		(10.6		)
	Total				$	(40.1	)

Pension_and_Other_Postretireme1

Pension and Other Postretirement Benefits (Tables)	3 Months Ended
	Mar. 31, 2014
Compensation and Retirement Disclosure [Abstract]	'
Net periodic pension costs under retirement plans and other post-retirement benefits	'
	Net Periodic Pension and Other Postretirement Benefits ("OPEB") Cost
		For the Three Months Ended
		31-Mar-14									30-Mar-13
		Pension			OPEB			Consolidated			Pension			OPEB			Consolidated
		(In millions)
	Net periodic pension and OPEB cost:
	Service cost - benefits earned during the year	$	3.3		$	0.7		$	4		$	4		$	0.9		$	4.9
	Interest cost on projected benefit obligation	42.1			1.7			43.8			39.4			1.8			41.2
	Expected return on plan assets	(49.1		)	—			(49.1		)	(44.7		)	—			(44.7		)
	Amortization of prior service cost (benefit)	0.2			(0.8		)	(0.6		)	0.2			(0.9		)	(0.7		)
	Amortization of net actuarial loss (gain)	9.1			(0.2		)	8.9			14.3			(0.1		)	14.2
	Less: expected participant contributions	(0.3		)	—			(0.3		)	(0.3		)	—			(0.3		)
	Net periodic pension and OPEB cost	$	5.3		$	1.4		$	6.7		$	12.9		$	1.7		$	14.6

Supplemental_Guarantor_Informa1

Supplemental Guarantor Information Supplemental (Tables)	3 Months Ended
	Mar. 31, 2014																Mar. 30, 2013
Statement of Operations [Member]	'																'
Schedule of Supplemental Guarantor Information	'																'
	MOLSON COORS BREWING COMPANY AND SUBSIDIARIES																MOLSON COORS BREWING COMPANY AND SUBSIDIARIES
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS																CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
	FOR THE THREE MONTHS ENDED MARCH 31, 2014																FOR THE THREE MONTHS ENDED MARCH 30, 2013
	(IN MILLIONS)																(IN MILLIONS)
	(UNAUDITED)																(UNAUDITED)
		Parent			Subsidiary			Subsidiary			Eliminations			Consolidated				Parent			Subsidiary			Subsidiary			Eliminations			Consolidated
		Guarantor and			Guarantors			Non										Guarantor and			Guarantors			Non
		2012 Issuer						Guarantors										2012 Issuer						Guarantors
	Sales	$	8		$	950.8		$	259		$	(39.5	)	$	1,178.30		Sales	$	3.9		$	972.8		$	240.4		$	(32.3	)	$	1,184.80
	Excise taxes	—			(304.9		)	(57.4		)	—			(362.3		)	Excise taxes	—			(303.8		)	(52.5		)	—			(356.3		)
	Net sales	8			645.9			201.6			(39.5		)	816			Net sales	3.9			669			187.9			(32.3		)	828.5
	Cost of goods sold	—			(404.7		)	(142.8		)	24.3			(523.2		)	Cost of goods sold	—			(427.7		)	(146.7		)	27.3			(547.1		)
	Gross profit	8			241.2			58.8			(15.2		)	292.8			Gross profit	3.9			241.3			41.2			(5.0		)	281.4
	Marketing, general and administrative expenses	(31.2		)	(173.8		)	(74.1		)	15.2			(263.9		)	Marketing, general and administrative expenses	(37.1		)	(184.3		)	(77.5		)	5			(293.9		)
	Special items, net	—			(10.7		)	63.2			—			52.5			Special items, net	(0.3		)	(0.8		)	(0.4		)	—			(1.5		)
	Equity income (loss) in subsidiaries	201.4			(33.7		)	21.2			(188.9		)	—			Equity income (loss) in subsidiaries	99.6			(151.3		)	35.2			16.5			—
	Equity income in MillerCoors	—			122.8			—			—			122.8			Equity income in MillerCoors	—			117.4			—			—			117.4
	Operating income (loss)	178.2			145.8			69.1			(188.9		)	204.2			Operating income (loss)	66.1			22.3			(1.5		)	16.5			103.4
	Interest income (expense), net	(21.4		)	75.8			(89.8		)	—			(35.4		)	Interest income (expense), net	(26.0		)	48.1			(97.0		)	—			(74.9		)
	Other income (expense), net	0.3			2			(1.5		)	—			0.8			Other income (expense), net	(13.6		)	30.8			(12.9		)	—			4.3
	Income (loss) from continuing operations before income taxes	157.1			223.6			(22.2		)	(188.9		)	169.6			Income (loss) from continuing operations before income taxes	26.5			101.2			(111.4		)	16.5			32.8
	Income tax benefit (expense)	6.3			(15.3		)	4.2			—			(4.8		)	Income tax benefit (expense)	2			(3.0		)	(1.0		)	—			(2.0		)
	Net income (loss) from continuing operations	163.4			208.3			(18.0		)	(188.9		)	164.8			Net income (loss) from continuing operations	28.5			98.2			(112.4		)	16.5			30.8
	Income (loss) from discontinued operations, net of tax	—			—			(1.9		)	—			(1.9		)	Income (loss) from discontinued operations, net of tax	—			—			(0.9		)	—			(0.9		)
	Net income (loss) including noncontrolling interests	163.4			208.3			(19.9		)	(188.9		)	162.9			Net income (loss) including noncontrolling interests	28.5			98.2			(113.3		)	16.5			29.9
	Less: Net (income) loss attributable to noncontrolling interests	—			—			0.5			—			0.5			Less: Net (income) loss attributable to noncontrolling interests	—			—			(1.4		)	—			(1.4		)
	Net income (loss) attributable to MCBC	$	163.4		$	208.3		$	(19.4	)	$	(188.9	)	$	163.4		Net income (loss) attributable to MCBC	$	28.5		$	98.2		$	(114.7	)	$	16.5		$	28.5
	Comprehensive income (loss) attributable to MCBC	$	1.9		$	94		$	(21.9	)	$	(72.1	)	$	1.9		Comprehensive income (loss) attributable to MCBC	$	(232.7	)	$	(124.5	)	$	(226.0	)	$	350.5		$	(232.7	)
Balance Sheet [Member]	'																'
Schedule of Supplemental Guarantor Information	'																'
	MOLSON COORS BREWING COMPANY AND SUBSIDIARIES
	CONDENSED CONSOLIDATING BALANCE SHEETS
	AS OF MARCH 31, 2014
	(IN MILLIONS)
	(UNAUDITED)
		Parent			Subsidiary			Subsidiary			Eliminations			Consolidated
		Guarantor and			Guarantors			Non
		2012 Issuer						Guarantors
	Assets
	Current assets:
	Cash and cash equivalents	$	28.6		$	108.3		$	200.7		$	—		$	337.6
	Accounts receivable, net	0.4			405.8			145.9			—			552.1
	Other receivables, net	65.8			57.6			37.9			—			161.3
	Total inventories, net	—			215.1			48.1			—			263.2
	Other current assets, net	9.1			64.1			50.5			—			123.7
	Deferred tax assets	—			1.4			47.8			(2.8		)	46.4
	Intercompany accounts receivable	—			3,340.50			167.8			(3,508.3		)	—
	Total current assets	103.9			4,192.80			698.7			(3,511.1		)	1,484.30
	Properties, net	31.7			1,241.70			662.8			—			1,936.20
	Goodwill	—			1,155.90			1,238.80			—			2,394.70
	Other intangibles, net	—			4,130.70			2,521.60			—			6,652.30
	Investment in MillerCoors	—			2,608.50			—			—			2,608.50
	Net investment in and advances to subsidiaries	12,930.30			3,428.50			6,500.60			(22,859.4		)	—
	Deferred tax assets	8.5			1.9			0.1			5.2			15.7
	Other assets	34.8			177.1			62.2			—			274.1
	Total assets	$	13,109.20		$	16,937.10		$	11,684.80		$	(26,365.3	)	$	15,365.80
	Liabilities and equity
	Current liabilities:
	Accounts payable and other current liabilities	$	67.7		$	845.3		$	354		$	—		$	1,267.00
	Deferred tax liabilities	10.6			159.5			—			(2.8		)	167.3
	Current portion of long-term debt and short-term borrowings	351.1			15			264.3			—			630.4
	Discontinued operations	—			—			7.1			—			7.1
	Intercompany accounts payable	2,173.40			258.1			1,076.80			(3,508.3		)	—
	Total current liabilities	2,602.80			1,277.90			1,702.20			(3,511.1		)	2,071.80
	Long-term debt	1,896.20			1,266.00			0.1			—			3,162.30
	Pension and postretirement benefits	2.6			427			6.9			—			436.5
	Deferred tax liabilities	—			0.2			927.1			5.2			932.5
	Other liabilities	9.8			22.9			87.3			—			120
	Discontinued operations	—			—			18			—			18
	Intercompany notes payable	—			1,546.70			5,824.50			(7,371.2		)	—
	Total liabilities	4,511.40			4,540.70			8,566.10			(10,877.1		)	6,741.10
	MCBC stockholders' equity	8,600.90			18,403.80			4,455.60			(22,859.4		)	8,600.90
	Intercompany notes receivable	(3.1		)	(6,007.4		)	(1,360.7		)	7,371.20			—
	Total stockholders' equity	8,597.80			12,396.40			3,094.90			(15,488.2		)	8,600.90
	Noncontrolling interests	—			—			23.8			—			23.8
	Total equity	8,597.80			12,396.40			3,118.70			(15,488.2		)	8,624.70
	Total liabilities and equity	$	13,109.20		$	16,937.10		$	11,684.80		$	(26,365.3	)	$	15,365.80
	MOLSON COORS BREWING COMPANY AND SUBSIDIARIES
	CONDENSED CONSOLIDATING BALANCE SHEETS
	AS OF DECEMBER 31, 2013
	(IN MILLIONS)
	(UNAUDITED)
		Parent			Subsidiary			Subsidiary			Eliminations			Consolidated
		Guarantor and			Guarantors			Non
		2012 Issuer						Guarantors
	Assets
	Current assets:
	Cash and cash equivalents	$	90.6		$	248.7		$	103		$	—		$	442.3
	Accounts receivable, net	0.7			466.3			136.6			—			603.6
	Other receivables, net	48			56.5			19.9			—			124.4
	Total inventories, net	—			166.8			38.5			—			205.3
	Other current assets, net	8.4			60.1			43.2			—			111.7
	Deferred tax assets	—			—			53.3			(2.9		)	50.4
Intercompany accounts receivable	—			3,186.80			196.5			(3,383.3		)	—
Total current assets	147.7			4,185.20			591			(3,386.2		)	1,537.70
Properties, net	31			1,282.80			656.3			—			1,970.10
Goodwill	—			1,161.80			1,256.90			—			2,418.70
Other intangibles, net	—			4,292.30			2,532.80			—			6,825.10
Investment in MillerCoors	—			2,506.50			—			—			2,506.50
Net investment in and advances to subsidiaries	12,860.90			3,303.70			6,654.90			(22,819.5		)	—
Deferred tax assets	28.8			3.1			1			5.4			38.3
Other assets	35.5			175			73.2			—			283.7
Total assets	$	13,103.90		$	16,910.40		$	11,766.10		$	(26,200.3	)	$	15,580.10
Liabilities and equity
Current liabilities:
Accounts payable and other current liabilities	$	52.2		$	998.6		$	359.5		$	—		$	1,410.30
Deferred tax liabilities	8.8			132.2			—			(2.9		)	138.1
Current portion of long-term debt and short-term borrowings	379.7			61.8			145.4			—			586.9
Discontinued operations	—			—			6.8			—			6.8
Intercompany accounts payable	2,120.70			228.3			1,034.30			(3,383.3		)	—
Total current liabilities	2,561.40			1,420.90			1,546.00			(3,386.2		)	2,142.10
Long-term debt	1,896.20			1,316.60			0.2			—			3,213.00
Pension and postretirement benefits	2.6			453.3			6.7			—			462.6
Deferred tax liabilities	—			—			906			5.4			911.4
Other liabilities	8			22.4			139.5			—			169.9
Discontinued operations	—			—			17.3			—			17.3
Intercompany notes payable	—			1,693.90			6,138.90			(7,832.8		)	—
Total liabilities	4,468.20			4,907.10			8,754.60			(11,213.6		)	6,916.30
MCBC stockholders' equity	8,638.90			18,332.50			4,487.00			(22,819.5		)	8,638.90
Intercompany notes receivable	(3.2		)	(6,329.2		)	(1,500.4		)	7,832.80			—
Total stockholders' equity	8,635.70			12,003.30			2,986.60			(14,986.7		)	8,638.90
Noncontrolling interests	—			—			24.9			—			24.9
Total equity	8,635.70			12,003.30			3,011.50			(14,986.7		)	8,663.80
Total liabilities and equity	$	13,103.90		$	16,910.40		$	11,766.10		$	(26,200.3	)	$	15,580.10
Statement of Cash Flows [Member]	'																'
Schedule of Supplemental Guarantor Information	'																'
	MOLSON COORS BREWING COMPANY AND SUBSIDIARIES																MOLSON COORS BREWING COMPANY AND SUBSIDIARIES
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS																CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	FOR THE THREE MONTHS ENDED MARCH 31, 2014																FOR THE THREE MONTHS ENDED MARCH 30, 2013
	(IN MILLIONS)																(IN MILLIONS)
	(UNAUDITED)																(UNAUDITED)
		Parent			Subsidiary			Subsidiary			Eliminations			Consolidated				Parent			Subsidiary			Subsidiary			Eliminations			Consolidated
		Guarantor and			Guarantors			Non										Guarantor and			Guarantors			Non
		2012 Issuer						Guarantors										2012 Issuer						Guarantors
	Net cash provided by (used in) operating activities	$	8		$	98.1		$	43.6		$	—		$	149.7		Net cash provided by (used in) operating activities	$	(58.0	)	$	174.6		$	2.5		$	(0.7	)	$	118.4
	CASH FLOWS FROM INVESTING ACTIVITIES:																CASH FLOWS FROM INVESTING ACTIVITIES:
	Additions to properties	(3.0		)	(42.5		)	(19.8		)	—			(65.3		)	Additions to properties	(1.6		)	(30.2		)	(36.5		)	—			(68.3		)
	Proceeds from sales of properties and other assets	—			1.4			0.3			—			1.7			Proceeds from sales of properties and other assets	—			1.2			2.5			—			3.7
	Investment in MillerCoors	—			(354.9		)	—			—			(354.9		)	Investment in MillerCoors	—			(331.8		)	—			—			(331.8		)
	Return of capital from MillerCoors	—			259.5			—			—			259.5			Return of capital from MillerCoors	—			222.4			—			—			222.4
	Loan repayments	—			2.2			—			—			2.2			Loan repayments	—			2.6			—			—			2.6
	Loan advances	—			(1.6		)	(15.1		)	—			(16.7		)	Loan advances	—			(2.5		)	—			—			(2.5		)
	Net intercompany investing activity	—			140.1			127.5			(267.6		)	—			Net intercompany investing activity	—			(9.4		)	—			9.4			—
	Net cash provided by (used in) investing activities	(3.0		)	4.2			92.9			(267.6		)	(173.5		)	Net cash provided by (used in) investing activities	(1.6		)	(147.7		)	(34.0		)	9.4			(173.9		)
	CASH FLOWS FROM FINANCING ACTIVITIES:																CASH FLOWS FROM FINANCING ACTIVITIES:
	Exercise of stock options under equity compensation plans	20.2			—			—			—			20.2
																	Exercise of stock options under equity compensation plans	27.2			—			—			—			27.2
	Excess tax benefits from share-based compensation	2			—			—			—			2
																	Excess tax benefits from share-based compensation	1.6			—			—			—			1.6
	Dividends paid	(60.2		)	—			(8.0		)	—			(68.2		)
																	Dividends paid	(51.2		)	—			(7.7		)	0.7			(58.2		)
	Payments for purchase of noncontrolling interest	—			—			(0.2		)				(0.2		)
																	Payments for purchase of noncontrolling interest	—			—			(0.2		)	—			(0.2		)
	Payments on long-term debt and capital lease obligations	(0.4		)	(46.4		)	(0.1		)	—			(46.9		)
																	Proceeds from short-term borrowings	—			—			5.9			—			5.9
	Proceeds from short-term borrowings	—			—			20.9			—			20.9
																	Payments on short-term borrowings	—			—			(13.8		)	—			(13.8		)
	Payments on short-term borrowings	—			—			(12.5		)	—			(12.5		)
																	Net proceeds from (payments on) revolving credit facilities	—			—			(1.2		)	—			(1.2		)
	Payments on settlement of derivative instruments	—			(65.2		)	—			—			(65.2		)
																	Change in overdraft balances and other	—			(0.2		)	3.7			—			3.5
	Net proceeds from (payments on) revolving credit facilities and commercial paper	(28.6		)	—			(13.2		)	—			(41.8		)
																	Net intercompany financing activity	—			—			9.4			(9.4		)	—
	Change in overdraft balances and other	—			—			111.5			—			111.5
																	Net cash provided by (used in) financing activities	(22.4		)	(0.2		)	(3.9		)	(8.7		)	(35.2		)
	Net intercompany financing activity	—			(127.5		)	(140.1		)	267.6			—			CASH AND CASH EQUIVALENTS:
																	Net increase (decrease) in cash and cash equivalents	(82.0		)	26.7			(35.4		)	—			(90.7		)
	Net cash provided by (used in) financing activities	(67.0		)	(239.1		)	(41.7		)	267.6			(80.2		)
																	Effect of foreign exchange rate changes on cash and cash equivalents	—			(16.7		)	(5.1		)	—			(21.8		)
	CASH AND CASH EQUIVALENTS:
	Net increase (decrease) in cash and cash equivalents	(62.0		)	(136.8		)	94.8			—			(104.0		)	Balance at beginning of year	189.8			249.3			184.9			—			624
	Effect of foreign exchange rate changes on cash and cash equivalents	—			(3.6		)	2.9			—			(0.7		)	Balance at end of period	$	107.8		$	259.3		$	144.4		$	—		$	511.5
	Balance at beginning of year	90.6			248.7			103			—			442.3
	Balance at end of period	$	28.6		$	108.3		$	200.7		$	—		$	337.6

Basis_of_Presentation_and_Summ2

Basis of Presentation and Summary of Significant Accounting Policies Narrative (Details)	3 Months Ended
	Mar. 31, 2014
	weeks
Minimum [Member]	'
Number of Weeks in Fiscal Year, Range (in weeks)	52
Maximum [Member]	'
Number of Weeks in Fiscal Year, Range (in weeks)	53

Basis_of_Presentation_and_Summ3

Basis of Presentation and Summary of Significant Accounting Policies Change in Accounting Policy (Details) (USD $)

3 Months Ended

In Millions, except Per Share data, unless otherwise specified

Mar. 31, 2014

Mar. 30, 2013

Mar. 31, 2014

Mar. 30, 2013

Mar. 31, 2014

Mar. 30, 2013

Mar. 31, 2014

Mar. 30, 2013

Mar. 31, 2014

Mar. 30, 2013

Mar. 31, 2014

Mar. 30, 2013

Dec. 31, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Dec. 31, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Dec. 31, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Dec. 31, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Dec. 31, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Dec. 31, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Dec. 31, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Dec. 31, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Dec. 31, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Dec. 31, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Dec. 31, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Dec. 31, 2013

Sep. 28, 2013

Jun. 29, 2013

Mar. 30, 2013

Canada [Member]

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Corporate [Member]

Corporate [Member]

As Reported [Member]

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As Reported [Member]

As Reported [Member]

As Reported [Member]

As Reported [Member]

As Reported [Member]

As Reported [Member]

As Reported [Member]

As Reported [Member]

As Reported [Member]

As Adjusted [Member]

As Adjusted [Member]

As Adjusted [Member]

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As Adjusted [Member]

As Adjusted [Member]

As Adjusted [Member]

As Adjusted [Member]

As Adjusted [Member]

As Adjusted [Member]

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As Adjusted [Member]

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Canada [Member]

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U.S. [Member]

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U.S. [Member]

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Europe [Member]

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MCI [Member]

MCI [Member]

MCI [Member]

MCI [Member]

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Corporate [Member]

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MCI [Member]

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New Accounting Pronouncements or Change in Accounting Principle [Line Items]

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'

'

'

'

'

'

Income (loss) from continuing operations before income taxes

169.6

32.8

[1]

88.3

28.4

[1]

122.8

117.4

[1]

27

-5.2

[1]

-3

-5.2

[1]

-65.5

-102.6

[1]

145.3

155.4

312.4

41.4

60.9

128.7

137.3

36.4

100.7

148.3

172.6

117.4

25.9

-69.5

81.6

-3.7

0

-2.4

-3.3

-6.1

-42.2

-49.7

-75.8

-102.6

152.1

172.4

297.2

32.8

62.7

143.6

128.6

28.4

100.7

148.3

172.6

117.4

31.1

-67.4

75.8

-5.2

-0.2

-2.4

-4

-5.2

-42.2

-49.7

-75.8

-102.6

Income tax benefit (expense)

-4.8

-2

'

'

'

'

'

'

'

'

'

'

-13.7

-32.7

-34.1

-3.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-14.8

-37.2

-30

-2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income (loss) attributable to Molson Coors Brewing Company

$163.40

$28.50

[1]

'

'

'

'

'

'

'

'

'

'

$131.50

$121.80

$278.40

$35.60

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$137.20

$134.30

$267.30

$28.50

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Diluted net income (loss) attributable to Molson Coors Brewing Company per share

$0.88

$0.16

[1]

'

'

'

'

'

'

'

'

'

'

$0.71

$0.66

$1.51

$0.20

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.74

$0.73

$1.45

$0.16

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Amounts have been adjusted to reflect the change in interim accounting for advertising expenses. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further discussion.

Basis_of_Presentation_and_Summ4

Basis of Presentation and Summary of Significant Accounting Policies Foreign Currency Translation (Details) (USD $)	3 Months Ended				6 Months Ended	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013	Jun. 29, 2013	Mar. 30, 2013	Jun. 29, 2013	Jun. 29, 2013	Mar. 30, 2013	Jun. 29, 2013
			As Reported [Member]	As Reported [Member]	As Reported [Member]	As Adjusted [Member]	As Adjusted [Member]	As Adjusted [Member]
Foreign currency translation adjustments, net of tax	'	'	($79.40)	($261.30)	($340.70)	($113.60)	($280.70)	($394.30)
Total other comprehensive income (loss), net of tax	-161.5	-261.2	-52.5	-241.8	-294.3	-86.7	-261.2	-347.9
Comprehensive income (loss) attributable to Molson Coors Brewing Company	$1.90	($232.70)	$225.90	($206.20)	$19.70	$180.60	($232.70)	($52.10)

New_Accounting_Pronouncements_

New Accounting Pronouncements New Accounting Pronouncements (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]	'
Reduction of unrecognized tax benefits	$37.80

Segment_Reporting_Net_Sales_De

Segment Reporting Net Sales (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 30, 2013
Segment Reporting	'		'
Net sales	$816		$828.50
Maximum percentage of sales accounted for by a single customer (as a percent)	10.00%		'
Canada [Member]	'		'
Segment Reporting	'		'
Net sales	347.1		395.6
Europe [Member]	'		'
Segment Reporting	'		'
Net sales	437.6		406.4
MCI [Member]	'		'
Segment Reporting	'		'
Net sales	32.2		27
Corporate [Member]	'		'
Segment Reporting	'		'
Net sales	0.3		0.3
Intersegment sales elimination	'		'
Segment Reporting	'		'
Net sales	($1.20)	[1]	($0.80)	[1]
[1]	Represents inter-segment sales from the Europe segment to the MCI segment.

Segment_Reporting_Income_Loss_

Segment Reporting Income (Loss) From Continuing Operations (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
Segment Reporting	'	'
Income (loss) from continuing operations before income taxes	$169.60	$32.80	[1]
Canada [Member]	'	'
Segment Reporting	'	'
Income (loss) from continuing operations before income taxes	88.3	28.4	[1]
U.S. [Member]	'	'
Segment Reporting	'	'
Income (loss) from continuing operations before income taxes	122.8	117.4	[1]
Europe [Member]	'	'
Segment Reporting	'	'
Income (loss) from continuing operations before income taxes	27	-5.2	[1]
MCI [Member]	'	'
Segment Reporting	'	'
Income (loss) from continuing operations before income taxes	-3	-5.2	[1]
Corporate [Member]	'	'
Segment Reporting	'	'
Income (loss) from continuing operations before income taxes	($65.50)	($102.60)	[1]
[1]	Amounts have been adjusted to reflect the change in interim accounting for advertising expenses. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further discussion.

Segment_Reporting_Total_Assets

Segment Reporting Total Assets (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Segment Reporting Information [Line Items]	'	'
Total assets	$15,365.80	$15,580.10
Canada [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Total assets	5,771.70	6,103.20
U.S. [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Total assets	2,608.50	2,506.50
Europe [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Total assets	6,678.80	6,547.70
MCI [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Total assets	78.3	83.3
Corporate [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Total assets	$228.50	$339.40

Investments_Financials_Details

Investments Financials (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 30, 2013	Dec. 31, 2013
Equity Method Investment, Summarized Financial Information, Liabilities and Equity [Abstract]	'		'	'
Total equity	$8,624.70		'	$8,663.80
MillerCoors	'		'	'
Condensed balance sheets	'		'	'
Current assets	995.1		'	798.4
Noncurrent assets	8,958.70		'	8,989.30
Total assets	9,953.80		'	9,787.70
Current liabilities	933.4		'	950.1
Noncurrent liabilities	1,288.60		'	1,346.20
Total liabilities	2,222		'	2,296.30
Noncontrolling interests	20.9		'	20.7
Owners' equity	7,710.90		'	7,470.70
Total liabilities and equity	9,953.80		'	9,787.70
Equity Method Investment, Summarized Financial Information, Liabilities and Equity [Abstract]	'		'	'
Total equity	7,710.90		'	7,470.70
MCBC economic interest	42.00%		42.00%	42.00%
MCBC proportionate share of MillerCoors equity	3,238.60		'	3,137.70
Difference between MCBC contributed cost basis and proportional share of the underlying equity in net assets of MillerCoors	-665.1	[1]	'	-666.2	[1]
Investment in MillerCoors	2,608.50		'	2,506.50
Results of operations	'		'	'
Net sales	1,790.40		1,788.30	'
Cost of goods sold	-1,094.10		-1,088.70	'
Gross profit	696.3		699.6	'
Operating income	297.5		274.5	'
Net income attributable to MillerCoors	291.2		271.9	'
Special charges, restructuring	0		'	'
Parent [Member]	'		'	'
Equity Method Investment, Summarized Financial Information, Liabilities and Equity [Abstract]	'		'	'
Equity Method Investment, Difference From Accounting Policy Elections	$35		'	$35
[1]	Our net investment in MillerCoors is based on the carrying values of the net assets contributed to the joint venture which is less than our proportionate share of underlying equity (42%) of MillerCoors (contributed by both Coors Brewing Company ("CBC") and Miller Brewing Company ("Miller")). This basis difference, with the exception of certain non-amortizing items (goodwill, land, etc.), is being amortized as additional equity income over the remaining useful lives of the contributed long-lived amortizing assets.

Investments_Proportional_Detai

Investments Proportional (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 30, 2013		Dec. 31, 2013
Schedule of Equity Method Investments [Line Items]	'		'		'
Equity income in MillerCoors	$122.80		$117.40		'
MillerCoors	'		'		'
Schedule of Equity Method Investments [Line Items]	'		'		'
Net income attributable to MillerCoors	291.2		271.9		'
MCBC economic interest	42.00%		42.00%		42.00%
MCBC proportionate share of MillerCoors net income	122.3		114.2		'
Amortization of the difference between MCBC contributed cost basis and proportional share of the underlying equity in the net assets of MillerCoors	1.1		1.2		'
Share-based compensation adjustment	-0.6	[1]	2	[1]	'
Equity income in MillerCoors	$122.80		$117.40		'
[1]	The net adjustment is to eliminate all share-based compensation impacts related to pre-existing SABMillerB plc equity awards held by former Miller employees employed by MillerCoors.

Investments_Transactions_with_

Investments Transactions with MillerCoors (Details) (MillerCoors, USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
MillerCoors	'	'
Schedule of Equity Method Investments [Line Items]	'	'
Sales of beer to MillerCoors	$2.60	$4.40
Purchases of beer from MillerCoors	7.1	3.1
Service agreement and other charges to MillerCoors	0.4	0.6
Service agreement costs from MillerCoors	$0.20	$0.20

Investments_Other_Equity_Metho

Investments Other Equity Method Investments (Details)

3 Months Ended

0 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

3 Months Ended

In Millions, unless otherwise specified

Mar. 31, 2014

Mar. 30, 2013

Nov. 05, 2013

Mar. 31, 2014

Mar. 30, 2013

Dec. 31, 2013

Nov. 05, 2013

Mar. 31, 2014

Mar. 30, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 30, 2013

USD ($)

USD ($)

Modelo Molson Imports L P MMI [Member]

Modelo Molson Imports L P MMI [Member]

Modelo Molson Imports L P MMI [Member]

Modelo Molson Imports L P MMI [Member]

Modelo Molson Imports L P MMI [Member]

Modelo [Member]

Modelo [Member]

Licensing Agreements [Member]

Canada [Member]

Canada [Member]

Canada [Member]

CAD

USD ($)

USD ($)

USD ($)

Subsequent Event [Member]

USD ($)

USD ($)

USD ($)

Licensing Agreements [Member]

Licensing Agreements [Member]

Licensing Agreements [Member]

USD ($)

USD ($)

USD ($)

Schedule of Equity Method Investments [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions

'

'

'

50.00%

'

'

'

50.00%

'

'

'

'

'

Joint Venture Agreement, Maturity Term

'

'

'

'

'

'

'10 years

'

'

'

'

'

'

Proceeds from Divestiture of Interest in Joint Venture

'

'

'

'

'

'

'

($63.20)

[1]

$0

[1]

'

'

'

'

Gain on early termination of joint venture

'

'

70

'

'

'

'

'

'

'

'

'

'

Finite-Lived License Agreements, Gross

'

'

'

'

'

'

'

'

'

'

'

40.5

'

Amortization of Intangible Assets

10.6

11.9

'

'

'

'

'

'

'

'

4.9

[1]

'

0

[1]

Impairment of Intangible Assets, Finite-lived

'

'

'

'

'

'

'

'

'

'

'

17.9

'

Equity Method Investment, Summarized Financial Information, Liabilities and Equity

'

'

'

10.1

'

21.2

'

'

'

'

'

'

'

Equity Method Investments, Intercompany Transactions, Net Payables Due

'

'

'

4.5

'

13.8

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Net

'

'

'

'

'

'

'

'

'

34

'

4.9

'

Income (Loss) from Equity Method Investments

4.2

1.1

'

0.7

0.6

'

'

'

'

'

'

'

'

Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party

'

'

'

$1.10

$2.40

'

'

'

'

'

'

'

'

[1]

See Note 4, "Investments" for further discussion related to the termination of MMI operations and related intangible asset charge.

Investments_Variable_Interest_

Investments Variable Interest Entity (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Grolsch	'	'
Variable Interest Entity	'	'
Total Assets	$6.90	$5.60
Total Liabilities	2.3	1.7
Cobra	'	'
Variable Interest Entity	'	'
Total Assets	31.7	36.5
Total Liabilities	$0.40	$1.90

Investments_Narrative_Details

Investments Narrative (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified	VIE	VIE
Schedule of Equity Method Investments [Line Items]	'	'
Number of Variable Interest Entities with Debt	0	0
MillerCoors	'	'
Schedule of Equity Method Investments [Line Items]	'	'
Net payables due to MillerCoors	5.2	4.4

ShareBased_Payments_Compensati

Share-Based Payments Compensation Expense (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Operating Activities	$2	$1.60
Options and Sosars [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Pre-tax compensation expense (in dollars)	8.3	11.1
Tax benefit (in dollars)	-2.7	-3.4
After-tax compensation expense (in dollars)	5.6	7.7
Gross [Member] | Options and Sosars [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Tax Benefit from Stock Options Exercised	$2	$1.60

ShareBased_Payments_Stock_Opti

Share-Based Payments Stock Options (Details) (Options and Sosars [Member], USD $)	3 Months Ended	12 Months Ended	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 30, 2013
			Gross [Member]	Gross [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Tax Benefit from Stock Options Exercised	'	'	$2	$1.60
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]	'	'	'	'
Outstanding at the beginning of the period (in shares)	3.5	'	'	'
Granted (in shares)	0.2	'	'	'
Exercised (in shares)	-0.6	'	'	'
Forfeited (in shares)	-0.1	'	'	'
Outstanding at the end of the period (in shares)	3	3.5	'	'
Exercisable (in shares)	2.6	'	'	'
Weighted-average exercise price of shares outstanding, beginning of the period (in dollars per share)	$43.41	'	'	'
Weighted-average exercise price of shares granted (in dollars per share)	$58.24	'	'	'
Weighted-average exercise price of shares exercised (in dollars per share)	$42.19	'	'	'
Weighted-average exercise price of shares forfeited (in dollars per share)	$44.24	'	'	'
Weighted-average exercise price of shares outstanding, end of the period (in dollars per share)	$44.46	$43.41	'	'
Weighted-average exercise price of shares exercisable (in dollars per share)	$43.66	'	'	'
Weighted-average remaining contractual life, outstanding (in years)	'4 years 8 months 24 days	'4 years 6 months 25 days	'	'
Weighted-average remaining contractual life, exercisable (in years)	'4 years 11 days	'	'	'
Aggregate intrinsic value of shares outstanding (in dollars)	45.1	'	'	'
Aggregate intrinsic value of shares outstanding (in dollars)	43.2	45.1	'	'
Aggregate intrinsic value of shares exercisable (in dollars)	$39.30	'	'	'

ShareBased_Payments_Nonvested_

Share-Based Payments Non-vested (Details) (USD $)	3 Months Ended			3 Months Ended
Share data in Millions, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 30, 2013
	Rsus and Dsus [Member]	PUs [Member]	PUs [Member]	PSUs [Member]	PSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Intrinsic Value, Amount Per Share	'	$0.43	$2.87	$42.75	'
Non-vested awards outstanding at the beginning of the period (in shares)	0.7	1	'	0.2	'
Granted (in shares)	0.2	0	'	0.2	'
Vested (in shares)	-0.2	-0.5	'	0	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	'	$6.16	'	'	'
Forfeited (in shares)	0	0	'	0	'
Non-vested awards outstanding at the end of the period (in shares)	0.7	0.5	'	0.4	'
Non-vested, weighted-average grant date fair value at the beginning of the period (in dollars per unit)	$42.08	'	'	$43.10	'
Granted, weighted-average grant date fair value (in dollars per unit)	$58.17	$0	'	$58.69	$43.10
Vested, weighted-average grant date fair value (in dollars per unit)	$40.27	'	'	$0	'
Forfeited, weighted-average grant date fair value (in dollars per unit)	$0	$0	'	$0	'
Non-vested, weighted-average grant date fair value at the end of the period (in dollars per unit)	$46.55	'	'	$50.44	'

ShareBased_Payments_Weighted_A

Share-Based Payments Weighted Average Assumptions (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 30, 2013
Options and Sosars [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Risk-free interest rate (as a percent)	2.29%	1.43%
Dividend yield (as a percent)	2.57%	2.88%
Weighted-average volatility (as a percent)	25.59%	25.02%
Expected term	'7 years 6 months	'7 years 8 months 12 days
Weighted-average fair market value (in dollars per share)	$12.78	$8.39
Options and Sosars [Member] | Minimum [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Volatility rate (percent)	22.66%	22.39%
Options and Sosars [Member] | Maximum [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Volatility rate (percent)	26.57%	25.90%
Performance Shares [Member] | Minimum [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Volatility rate (percent)	12.45%	12.18%
Performance Shares [Member] | Maximum [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Volatility rate (percent)	72.41%	69.37%

ShareBased_Payments_Narrative_

Share-Based Payments Narrative (Details) (USD $)	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Total unrecognized compensation expense related to non-vested shares from share-based compensation arrangements (in dollars)	$26.70	'
Weighted-average period over which compensation expense is expected to be recognized (in years)	'1 year 7 months 6 days	'
Proceeds from Stock Plans	20.2	27.2
Class B common stock, non-voting [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock approved by Board of Directors and available for issuance (in shares)	7.4	'
Options and Sosars [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value	8.9	8.9
Proceeds from Stock Plans	20.2	27.2
Expected term	'7 years 6 months	'7 years 8 months 12 days
Risk-free interest rate (percent)	2.29%	1.43%
Dividend yield (percent)	2.57%	2.88%
Rsus and Dsus [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Grant date fair value	$58.17	'
PUs [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Grant date fair value	$0	'
PSUs [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'3 years	'
Grant date fair value	$58.69	$43.10
Expected term	'2 years 9 months 26 days	'2 years 9 months 29 days
Volatility rate (percent)	21.72%	21.13%
Risk-free interest rate (percent)	0.72%	0.33%
Dividend yield (percent)	2.57%	2.88%
Minimum [Member] | Options and Sosars [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Volatility rate (percent)	22.66%	22.39%
Maximum [Member] | Options and Sosars [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Volatility rate (percent)	26.57%	25.90%
Gross [Member] | Options and Sosars [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Tax Benefit from Stock Options Exercised	$2	$1.60

Special_items_Summary_Special_

Special items Summary Special Items (Details) (USD $)	3 Months Ended				12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 30, 2013		Dec. 26, 2009
Restructuring Cost and Reserve [Line Items]	'		'		'
Total special items	($52.50)		$1.50		'
Amortization of Intangible Assets	10.6		11.9		'
Non-income-related Tax Reserves	'		'		10.4
Canada [Member] | Restructuring	'		'		'
Restructuring Cost and Reserve [Line Items]	'		'		'
Total special items	5.3	[1]	1.3	[1]	'
Canada [Member] | Special termination benefits	'		'		'
Restructuring Cost and Reserve [Line Items]	'		'		'
Total special items	0	[2]	0.8	[2]	'
Europe [Member] | Restructuring	'		'		'
Restructuring Cost and Reserve [Line Items]	'		'		'
Total special items	0.5	[1]	3.3	[1]	'
Europe [Member] | Release of non-income-related tax reserve	'		'		'
Restructuring Cost and Reserve [Line Items]	'		'		'
Total special items	0	[3]	-4.2	[3]	'
Corporate [Member] | Restructuring	'		'		'
Restructuring Cost and Reserve [Line Items]	'		'		'
Total special items	0	[1]	0.3	[1]	'
Modelo [Member]	'		'		'
Restructuring Cost and Reserve [Line Items]	'		'		'
Proceeds from Divestiture of Interest in Joint Venture	63.2	[4]	0	[4]	'
Licensing Agreements [Member] | Canada [Member]	'		'		'
Restructuring Cost and Reserve [Line Items]	'		'		'
Amortization of Intangible Assets	$4.90	[4]	$0	[4]	'
[1]	During the three months ended MarchB 31, 2014, and MarchB 30, 2013, we recognized expenses associated with restructuring programs focused on labor savings and organizational effectiveness across all functions. See further discussion of restructuring activities below.
[2]	During the three months ended MarchB 30, 2013, we recognized charges related to special termination benefits as eligible employees elected early retirement offered as a result of the ratification of collective bargaining agreements with MCC's brewery groups.
[3]	During 2009, we established a non-income-related tax reserve of $10.4 million that was recorded as a special item. In the first quarter of 2013, the remaining outstanding amount of this non-income-related tax reserve was fully released.
[4]	See Note 4, "Investments" for further discussion related to the termination of MMI operations and related intangible asset charge.

Special_items_Severance_and_Ot

Special items Severance and Other Employee Related (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
Severance and other employee- related costs	'	'
Changes in restructuring accruals [Roll Forward]	'	'
Beginning balance of restructuring accruals	$24.70	$24.80
Charges incurred	5.8	4.9
Payments made	-4.5	-7.5
Foreign currency and other adjustments	-0.2	-0.6
Ending balance of restructuring accruals	25.8	21.6
Severance and other employee- related costs | Canada [Member]	'	'
Changes in restructuring accruals [Roll Forward]	'	'
Beginning balance of restructuring accruals	9.7	7.1
Charges incurred	5.3	1.3
Payments made	-3.6	-2.9
Foreign currency and other adjustments	-0.4	-0.2
Ending balance of restructuring accruals	11	5.3
Severance and other employee- related costs | Europe [Member]	'	'
Changes in restructuring accruals [Roll Forward]	'	'
Beginning balance of restructuring accruals	13.6	13.4
Charges incurred	0.5	3.3
Payments made	-0.6	-2.6
Foreign currency and other adjustments	0.2	-0.4
Ending balance of restructuring accruals	13.7	13.7
Severance and other employee- related costs | MCI [Member]	'	'
Changes in restructuring accruals [Roll Forward]	'	'
Beginning balance of restructuring accruals	0.5	2.8
Charges incurred	0	0
Payments made	-0.1	-1.7
Foreign currency and other adjustments	0	0
Ending balance of restructuring accruals	0.4	1.1
Severance and other employee- related costs | Corporate [Member]	'	'
Changes in restructuring accruals [Roll Forward]	'	'
Beginning balance of restructuring accruals	0.9	1.5
Charges incurred	0	0.3
Payments made	-0.2	-0.3
Foreign currency and other adjustments	0	0
Ending balance of restructuring accruals	$0.70	$1.50
Minimum [Member]	'	'
Restructuring Cost and Reserve [Line Items]	'	'
Payment of severance obligations, term	'12 months	'
Maximum [Member]	'	'
Restructuring Cost and Reserve [Line Items]	'	'
Payment of severance obligations, term	'24 months	'

Other_Income_and_Expense_Detai

Other Income and Expense (Details) (USD $)

3 Months Ended

3 Months Ended

Mar. 31, 2014

Mar. 30, 2013

Mar. 31, 2014

Mar. 30, 2013

Mar. 31, 2014

Mar. 30, 2013

Mar. 31, 2014

Mar. 30, 2013

Mar. 31, 2014

Mar. 30, 2013

Mar. 31, 2014

Mar. 30, 2013

3-May-12

Mar. 30, 2013

Other Foreign Exchange and Derivative Activity [Member]

Other Foreign Exchange and Derivative Activity [Member]

Sale of Non-operating Asset [Member]

Sale of Non-operating Asset [Member]

Other Foreign Exchange and Derivative Activity [Member]

Other Foreign Exchange and Derivative Activity [Member]

Other income (expense), net [Member]

Other income (expense), net [Member]

Molson Coors Central Europe (MCCE)

Molson Coors Central Europe (MCCE)

Senior Notes [Member]

StarBev L.P. [Member]

Other Foreign Exchange and Derivative Activity [Member]

Other Foreign Exchange and Derivative Activity [Member]

Foreign Cash Positions and Foreign Exchange Contracts [Member]

Other income and expense:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument, face amount

'

'

'

'

'

'

'

'

'

'

'

'

$1,900,000,000

'

Other income (expense), net

800,000

4,300,000

'

'

0

[1]

1,200,000

[1]

800,000

[2]

2,700,000

[2]

0

400,000

'

'

'

'

Loss on foreign currency movements

'

'

'

'

'

'

'

'

'

'

500,000

20,100,000

'

'

Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments

'

'

'

'

'

'

'

'

'

'

'

'

'

-10,600,000

Loss on derivatives, recognized in income

'

'

$300,000

($6,800,000)

'

'

'

'

'

'

'

'

'

'

[1]

During the first quarter of 2013, we realized a gain for proceeds received related to a non-income-related tax settlement resulting from historical activity within our former investment in the MontrC)al Canadiens.

[2]

Included in this amount are gains of $0.5 million and $20.1 million for the three months ended MarchB 31, 2014, and MarchB 30, 2013, respectively, related to foreign currency movements on foreign-denominated financing instruments entered into in conjunction with the closing of the Acquisition. We also recorded a net loss of $10.6 million for the three months ended MarchB 30, 2013, related to foreign cash positions and foreign exchange contracts entered into to hedge our risk associated with the payment of this foreign-denominated debt. Additionally, we recorded net gains of $0.3 million and losses of $6.8 million related to other foreign exchange and derivative activity during the three months ended MarchB 31, 2014, and MarchB 30, 2013, respectively.

Income_Tax_Details

Income Tax (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'	'	'
Effective tax rate (as a percent)	3.00%	6.00%	'
Federal statutory income tax rate (percent)	35.00%	'	'
Net discrete tax benefit	$24.80	'	'
Reduction in effective income tax rate	15.00%	'	'
Unrecognized tax benefits	($56.50)	'	($115.90)

Earnings_per_Share_EPS_Basic_a

Earnings per Share ("EPS") Basic and Diluted (Details) (USD $)	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
Amounts attributable to MCBC	'	'
Net income (loss) from continuing operations	$165.30	$29.40	[1]
Income (loss) from discontinued operations, net of tax	-1.9	-0.9	[1]
Net income (loss) attributable to Molson Coors Brewing Company	$163.40	$28.50	[1]
Weighted average shares for basic EPS (in shares)	184.3	181.7
Effect of dilutive securities:	'	'
Weighted average shares for diluted EPS (in shares)	185.5	182.9
Basic net income (loss) per share:	'	'
Continuing operations attributable to MCBC (in dollars per share)	$0.90	$0.16	[1]
Discontinued operations attributable to MCBC (in dollars per share)	($0.01)	$0	[1]
Net income attributable to MCBC (in dollars per share)	$0.89	$0.16	[1]
Diluted net income (loss) per share:	'	'
Continuing operations attributable to MCBC (in dollars per share)	$0.89	$0.16	[1]
Discontinued operations attributable to MCBC (in dollars per share)	($0.01)	$0	[1]
Net income attributable to MCBC (in dollars per share)	$0.88	$0.16	[1]
Dividends declared per share (in dollars per share)	$0.37	$0.32
Options and Sosars [Member]	'	'
Effect of dilutive securities:	'	'
Effect of dilutive securities of Options, SOSAR's, RSU's, PU's, and DSU's	0.6	0.7
RSU PSU PU DSU [Member]	'	'
Effect of dilutive securities:	'	'
Effect of dilutive securities of Options, SOSAR's, RSU's, PU's, and DSU's	0.6	0.5
[1]	Amounts have been adjusted to reflect the change in interim accounting for advertising expenses. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further discussion.

Earnings_per_Share_EPS_Antidil

Earnings per Share ("EPS") Antidilutive (Details)	3 Months Ended				3 Months Ended
Share data in Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013	Jun. 30, 2012	3-May-12	Mar. 31, 2014	Mar. 30, 2013	Jun. 15, 2007
			Convertible Senior Unsecured Note Due 2013 €500 Million 0.0% [Member]	2.5% Convertible Senior Notes [Member]	Stock options, SOSARs and RSUs	Stock options, SOSARs and RSUs	Convertible Senior Notes Due 2013 $575 Million 2.5% [Member]
			EUR (€)	USD ($)			2.5% Convertible Senior Notes [Member]
							USD ($)
Anti-dilutive securities:	'	'	'	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0.1	0.2	'	'	0.1	0.2	'
Debt instrument, face amount	'	'	€ 500,000,000	$1,900,000,000	'	'	$575,000,000

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Goodwill activity:	'	'
Balance at beginning of year	$2,418.70	'
Foreign currency translation	-24	'
Balance at end of year	2,394.70	'
Intangible Assets Gross, Excluding Goodwill	7,127.80	7,338.80
Canada [Member]	'	'
Goodwill [Line Items]	'	'
Percentage Of Fair Value Exceeding Carrying Value	16.00%	'
Goodwill activity:	'	'
Balance at beginning of year	718.2	'
Foreign currency translation	-27.7	'
Balance at end of year	690.5	'
Europe [Member]	'	'
Goodwill [Line Items]	'	'
Percentage Of Fair Value Exceeding Carrying Value	11.00%	'
Goodwill activity:	'	'
Balance at beginning of year	1,693.20	'
Foreign currency translation	3.5	'
Balance at end of year	1,696.70	'
MCI [Member]	'	'
Goodwill activity:	'	'
Balance at beginning of year	7.3	'
Foreign currency translation	0.2	'
Balance at end of year	$7.50	'

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets Intangible Assets (Details) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

12 Months Ended

3 Months Ended

In Millions, unless otherwise specified

Mar. 31, 2014

Mar. 30, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 30, 2013

Mar. 31, 2014

Licensing Agreements [Member]

Brands [Member]

Brands [Member]

Brands [Member]

Brands [Member]

Brands [Member]

Brands [Member]

Distribution Rights [Member]

Distribution Rights [Member]

Distribution Rights [Member]

Distribution Rights [Member]

Distribution Rights [Member]

Distribution Rights [Member]

Patents And Technology And Distribution Channels [Member]

Patents And Technology And Distribution Channels [Member]

Patents And Technology And Distribution Channels [Member]

Patents And Technology And Distribution Channels [Member]

Patents And Technology And Distribution Channels [Member]

Patents And Technology And Distribution Channels [Member]

Other [Member]

Other [Member]

Other [Member]

Other [Member]

Other [Member]

Other [Member]

Other Intangible Assets [Member]

Other Intangible Assets [Member]

Distribution Networks [Member]

Distribution Networks [Member]

Brands [Member]

Brands [Member]

Europe [Member]

Canada [Member]

Canada [Member]

Canada [Member]

Canada [Member]

Canada [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Brand Impairment [Member]

Licensing Agreements [Member]

Licensing Agreements [Member]

Licensing Agreements [Member]

Software Abandonment [Member]

Details of intangible assets, other than goodwill:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived License Agreements, Gross

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$40.50

'

'

Amortization of Intangible Assets

10.6

11.9

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.9

[1]

'

0

[1]

'

Impairment of Intangible Assets, Finite-lived

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17.9

'

'

Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

150.9

'

'

'

'

'

Restructuring, Settlement and Impairment Provisions

-52.5

1.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage Of Fair Value Exceeding Carrying Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

16.00%

'

'

'

'

Intangible assets subject to amortization:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Gross

'

'

'

'

531.2

537.5

'

'

'

'

262.7

314.1

'

'

'

'

36.4

36.2

'

'

'

'

1.2

1.2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total Gross

7,127.80

'

7,338.80

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accumulated amortization

-475.5

'

-513.7

'

-226.6

-224.7

'

'

'

'

-214.4

-255

'

'

'

'

-33.3

-32.8

'

'

'

'

-1.2

-1.2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net

'

'

'

34

304.6

312.8

'

'

'

'

48.3

59.1

'

'

'

'

3.1

3.4

'

'

'

'

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

4.9

'

'

Total Net

6,652.30

'

6,825.10

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Indefinite-lived intangible assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$17.50

$15.20

$915.50

$952.30

$5,363.30

$5,482.30

'

'

'

'

'

'

Useful life - minimum (in years)

'

'

'

'

'

'

'3 years

'3 years

'40 years

'40 years

'

'

'2 years

'2 years

'23 years

'23 years

'

'

'3 years

'3 years

'10 years

'10 years

'

'

'2 years

'2 years

'2 years

'2 years

'

'

'

'

'

'

'

'

'

'

'

'3 years

[1]

See Note 4, "Investments" for further discussion related to the termination of MMI operations and related intangible asset charge.

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets Amortization Expense (Details) (USD $)	3 Months Ended				12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 30, 2013		Dec. 31, 2013
	event
Estimated amortization expense of finite-lived intangible assets	'		'		'
2014 - remaining	$31		'		'
2015	38.9		'		'
2016	38.9		'		'
2017	13.8		'		'
2018	12		'		'
Amortization expense of intangible assets	10.6		11.9		'
Indefinite-lived Intangible Assets, Impairment Losses	'		'		0
Goodwill	2,394.70		'		2,418.70
Number of events triggering potential impairment	0		'		'
Licensing Agreements [Member]	'		'		'
Estimated amortization expense of finite-lived intangible assets	'		'		'
Finite-Lived Intangible Assets, Net	34		'		'
Canada [Member]	'		'		'
Estimated amortization expense of finite-lived intangible assets	'		'		'
Percentage Of Fair Value Exceeding Carrying Value	16.00%		'		'
Goodwill	690.5		'		718.2
Canada [Member] | Licensing Agreements [Member]	'		'		'
Estimated amortization expense of finite-lived intangible assets	'		'		'
Amortization expense of intangible assets	4.9	[1]	0	[1]	'
Finite-Lived Intangible Assets, Net	'		'		4.9
Brands [Member]	'		'		'
Estimated amortization expense of finite-lived intangible assets	'		'		'
Indefinite-lived intangible assets	5,363.30		'		5,482.30
Molson Core Brands [Member]	'		'		'
Estimated amortization expense of finite-lived intangible assets	'		'		'
Percentage Of Fair Value Exceeding Carrying Value	10.00%		'		'
Indefinite-lived intangible assets	2,747.40		'		'
Jelen Ozujsko Branik [Member] [Member]	'		'		'
Estimated amortization expense of finite-lived intangible assets	'		'		'
Percentage Of Fair Value Exceeding Carrying Value	1.00%		'		'
Indefinite-lived intangible assets	$1,306.10		'		'
[1]	See Note 4, "Investments" for further discussion related to the termination of MMI operations and related intangible asset charge.

Debt_Table_Details

Debt Table (Details)

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Jun. 30, 2012

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Dec. 31, 2013

Apr. 03, 2012

3-May-12

Jun. 15, 2007

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Sep. 22, 2005

Mar. 31, 2014

Dec. 31, 2013

Oct. 06, 2010

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

3-May-12

Sep. 22, 2005

3-May-12

3-May-12

Mar. 31, 2014

Dec. 31, 2013

Sep. 03, 2013

Sep. 03, 2013

Aug. 13, 2013

Mar. 31, 2014

Mar. 31, 2014

Apr. 30, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Dec. 31, 2013

Aug. 13, 2013

Jun. 15, 2012

Mar. 30, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

USD ($)

USD ($)

Japanese Yen [Member]

Japanese Yen [Member]

Line of Credit [Member]

Line of Credit [Member]

Revolving Credit [Member]

Revolving Credit [Member]

Revolving Credit [Member]

Revolving Credit [Member]

Revolving Credit [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Commercial Paper Program [Member]

Commercial Paper Program [Member]

Molson Coors Central Europe (MCCE)

Molson Coors Central Europe (MCCE)

Molson Coors Central Europe (MCCE)

Molson Coors Central Europe (MCCE)

Molson Coors Central Europe (MCCE)

Molson Coors Central Europe (MCCE)

Molson Coors Central Europe (MCCE)

Molson Coors Central Europe (MCCE)

Molson Coors Central Europe (MCCE)

Molson Coors Central Europe (MCCE)

Molson Coors Central Europe (MCCE)

Molson Coors Central Europe (MCCE)

Equity conversion feature of debt

Central Europe [Member]

Central Europe [Member]

Central Europe [Member]

Central Europe [Member]

USD ($)

USD ($)

Revolving Multicurrency Bank Credit Facility [Member]

Revolving Multicurrency Bank Credit Facility [Member]

USD ($)

EUR (€)

USD ($)

EUR (€)

USD ($)

USD ($)

$575 million 2.5% convertible Senior Notes due 2013

Convertible Senior Unsecured Note Due 2013 €500 Million 0.0% [Member]

Convertible Senior Unsecured Note Due 2013 €500 Million 0.0% [Member]

Canadian dollar ("CAD") 900 million 5.0% notes due 2015

Canadian dollar ("CAD") 900 million 5.0% notes due 2015

Canadian dollar ("CAD") 900 million 5.0% notes due 2015

CAD 500 million 3.95% Series A notes due 2017

CAD 500 million 3.95% Series A notes due 2017

CAD 500 million 3.95% Series A notes due 2017

$300 million 2.0% notes due 2017

$300 million 2.0% notes due 2017

$500 million 3.5% notes due 2022

$500 million 3.5% notes due 2022

$1.1 billion 5.0% notes due 2042

$1.1 billion 5.0% notes due 2042

5.0% Interest Rate, Maturing 2042 [Member]

5.0% Interest Rate, Maturing 2042 [Member]

2.0% Interest Rate, Maturing 2017 [Member]

3.5% Interest Rate, Maturing 2022 [Member]

USD ($)

USD ($)

Convertible Debt [Member]

Convertible Debt [Member]

Convertible Debt [Member]

Convertible Debt [Member]

Convertible Debt [Member]

Convertible Debt [Member]

Convertible Debt [Member]

Convertible Debt [Member]

Convertible Debt [Member]

Convertible Debt [Member]

Convertible Debt [Member]

Convertible Debt [Member]

Molson Coors Central Europe (MCCE)

USD ($)

Line of Credit [Member]

Factoring arrangement [Member]

Factoring arrangement [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Convertible Senior Unsecured Note Due 2013 €500 Million 0.0% [Member]

Convertible Senior Unsecured Note Due 2013 €500 Million 0.0% [Member]

Convertible Senior Unsecured Note Due 2013 €500 Million 0.0% [Member]

Convertible Senior Unsecured Note Due 2013 €500 Million 0.0% [Member]

Convertible Senior Unsecured Note Due 2013 €500 Million 0.0% [Member]

Convertible Senior Unsecured Note Due 2013 €500 Million 0.0% [Member]

Zero Coupon Senior Unsecured Note [Member]

Zero Coupon Senior Unsecured Note [Member]

Zero Coupon Senior Unsecured Note [Member]

Zero Coupon Senior Unsecured Note [Member]

Zero Coupon Senior Unsecured Note [Member]

Zero Coupon Senior Unsecured Note [Member]

Convertible Debt [Member]

EUR (€)

USD ($)

USD ($)

USD ($)

EUR (€)

EUR (€)

USD ($)

EUR (€)

Subsequent Event [Member]

USD ($)

EUR (€)

USD ($)

EUR (€)

EUR (€)

EUR (€)

Zero Coupon Senior Unsecured Note [Member]

USD ($)

USD ($)

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Conversion, Converted Instrument, Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$614,700,000

€ 466,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrealized Gain (Loss) on Derivatives

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-29,500,000

'

'

'

'

Total long-term debt (including current portion) before unamortized discounts and other

'

'

'

'

'

'

'

'

'

'

'

'

'

15,000,000

[1]

61,800,000

[1]

814,500,000

847,200,000

'

452,500,000

470,700,000

'

300,000,000

300,000,000

500,000,000

500,000,000

1,100,000,000

1,100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

510,900,000

'

'

'

'

'

'

Other long-term debt

100,000

200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Commercial Paper Outstanding, Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

351,100,000

379,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Short-term debt, weighted average interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.42%

0.49%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted average interest rate, term

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'638 hours

'1133 hours

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit facilities

0

[2]

0

[2]

3,700,000

3,100,000

'

'

123,900,000

90,000,000

137,400,000

100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Less: unamortized debt discounts and other

-4,800,000

-5,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total long-term debt (including current portion)

3,177,300,000

3,274,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Current portion of long-term debt

-15,000,000

-61,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-15,000,000

-10,900,000

-61,800,000

-44,900,000

'

'

'

'

'

'

'

Total long-term debt

3,162,300,000

3,213,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Short-term debt

615,400,000

[2]

525,100,000

[2]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Current portion of long-term debt and short-term borrowings

630,400,000

586,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

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'

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'

'

'

'

'

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'

'

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'

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'

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'

'

'

'

'

'

'

'

Debt instrument, face amount

'

'

'

'

'

'

'

'

'

'

'

1,900,000,000

575,000,000

'

'

'

'

900,000,000

'

'

500,000,000

'

'

'

'

'

'

1,100,000,000

'

300,000,000

500,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

500,000,000

'

'

'

'

'

Debt instrument, interest rate percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.95%

'

'

'

'

'

'

5.00%

5.00%

2.00%

3.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

0.00%

'

'

'

'

'

Business Combination, Payment of Claim Settlement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

46,300,000

34,000,000

15,100,000

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Convertible, Beneficial Conversion Feature

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

14,400,000

'

10,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term Debt - Portion of Principal Repayment

'

'

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'

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'

'

'

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

600,300,000

455,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Maximum Borrowing Capacity

'

'

'

'

'

400,000,000

'

'

'

'

550,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

150,000,000

'

'

Line of Credit Facility, Remaining Borrowing Capacity

'

'

'

'

573,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Bank overdrafts

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

114,100,000

'

'

'

Bank cash

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

139,200,000

'

'

'

Bank cash, net of overdrafts

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25,100,000

'

'

'

Other Short-term Borrowings

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

$22,600,000

$4,800,000

[1]

On June 15, 2012, we issued a €500 million convertible note due December 31, 2013, which included a put conversion feature to the Seller. On August 13, 2013, the conversion feature was exercised for an agreed-upon value upon exercise of €510.9 million, consisting of €500 million in principal and €10.9 million for the conversion feature. On September 3, 2013, we paid the Seller in cash a total of €466.0 million ($614.7 million) consisting of €455.1 million ($600.3 million) in principal and €10.9 million ($14.4 million) for the conversion feature. Separate from the Seller's notice to put, we had made claims with regard to the representations and warranties provided to us upon close of the Acquisition related to local country regulatory matters associated with pre-acquisition periods. As of December 31, 2013, we had withheld €44.9 million ($61.8 million) from the €500 million in principal related to these outstanding claims. During the first quarter of 2014, we released €34.0 million ($46.3 million at settlement) of the amount withheld to the Seller as a result of the settlement of one of these claims. As of March 31, 2014, the remaining amount withheld was €10.9 million ($15.0 million), which we subsequently released in April 2014 for a final principal payment of €10.9 million ($15.1 million at settlement). We did not incur any interest on amounts withheld. The €500 million convertible note's embedded conversion feature was determined to meet the definition of a derivative required to be bifurcated and separately accounted for at fair value with changes in fair value recorded in earnings. During the first quarter of 2013, we recognized an unrealized loss of $29.5 million on the conversion feature based on the fair value movements during the quarter. The cash and non-cash interest, excluding the change in fair value of the convertible feature, resulted in an immaterial impact to our effective interest rate for the first quarter of 2013.

[2]

As of MarchB 31, 2014, and DecemberB 31, 2013, the outstanding borrowings under the commercial paper program were $351.1 million and $379.8 million, respectively, with a weighted average effective interest rate and tenor for these outstanding borrowings of 0.42%; 26.6 days and 0.49%; 47.2 days, respectively. We have a revolving credit facility in Europe to provide €150 million on an uncommitted basis through September 2014. As of MarchB 31, 2014, and DecemberB 31, 2013, the outstanding borrowings under this revolving credit facility were $123.9 million (€90.0 million) and $137.4 million (€100.0 million), respectively. As of MarchB 31, 2014, and DecemberB 31, 2013, there were no outstanding borrowings under our $400 million or $550 million revolving credit facilities which mature in the second quarters of 2015 and 2016, respectively. As of MarchB 31, 2014, we have $573.0 million available to draw on, as the borrowing capacity is reduced by borrowings under our commercial paper program discussed above and our letters of credit in Canada.As of MarchB 31, 2014, and DecemberB 31, 2013, we had outstanding borrowings of $3.7 million and $3.1 million, respectively, under the Japanese Yen line of credit and no borrowings under the GBP and CAD facilities. Our Europe segment has a notional cross-border, cross-currency cash pool for the majority of its subsidiaries. As of MarchB 31, 2014, we had $114.1 million in bank overdrafts and $139.2 million in bank cash related to the pool for a net positive position of $25.1 million. As of DecemberB 31, 2013, we were not in an overdraft position on a net basis. Also included in short-term borrowings is $22.6 million and $4.8 million related to factoring arrangements and other short-term borrowings within our Europe business as of MarchB 31, 2014, and DecemberB 31, 2013, respectively.

Debt_Narrative_Details

Debt Narrative (Details)

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

3-May-12

Jun. 15, 2007

3-May-12

3-May-12

3-May-12

Sep. 22, 2005

Mar. 31, 2014

Jun. 30, 2012

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Dec. 31, 2013

Apr. 03, 2012

Jun. 15, 2012

Mar. 30, 2013

USD ($)

USD ($)

Commercial Paper Program [Member]

Commercial Paper Program [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Line of Credit [Member]

Line of Credit [Member]

Revolving Credit [Member]

Revolving Credit [Member]

Revolving Credit [Member]

Revolving Credit [Member]

Revolving Credit [Member]

Molson Coors Central Europe (MCCE)

Equity conversion feature of debt

USD ($)

USD ($)

USD ($)

$575 million 2.5% convertible Senior Notes due 2013

2.0% Interest Rate, Maturing 2017 [Member]

3.5% Interest Rate, Maturing 2022 [Member]

5.0% Interest Rate, Maturing 2042 [Member]

5.0% Interest Rate, Maturing 2042 [Member]

Revolving Multicurrency Bank Credit Facility [Member]

Revolving Multicurrency Bank Credit Facility [Member]

USD ($)

EUR (€)

USD ($)

EUR (€)

USD ($)

Convertible Debt [Member]

Molson Coors Central Europe (MCCE)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Zero Coupon Senior Unsecured Note [Member]

Convertible Debt [Member]

EUR (€)

Zero Coupon Senior Unsecured Note [Member]

USD ($)

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument, interest rate percentage

'

'

'

'

'

'

2.00%

3.50%

5.00%

5.00%

'

'

'

'

'

'

'

0.00%

'

Debt instrument, face amount

'

'

'

'

$1,900,000,000

$575,000,000

$300,000,000

$500,000,000

$1,100,000,000

'

'

'

'

'

'

'

'

€ 500,000,000

'

Long-term debt

-3,177,300,000

-3,274,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrealized loss, change in fair value of debt convertion feature

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-29,500,000

Revolving credit facility, maximum borrowing capacity

'

'

'

'

'

'

'

'

'

'

'

400,000,000

'

'

'

'

550,000,000

'

'

Line of Credit Facility, Remaining Borrowing Capacity

'

'

'

'

'

'

'

'

'

'

573,000,000

'

'

'

'

'

'

'

'

Commercial paper outstanding, amount

'

'

351,100,000

379,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Short-term debt, weighted average interest rate

'

'

0.42%

0.49%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit facility, current borrowing capacity

0

[1]

0

[1]

'

'

'

'

'

'

'

'

'

'

123,900,000

90,000,000

137,400,000

100,000,000

'

'

'

Short-term borrowings

615,400,000

[1]

525,100,000

[1]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term debt, fair value

$3,355,000,000

$3,359,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

As of MarchB 31, 2014, and DecemberB 31, 2013, the outstanding borrowings under the commercial paper program were $351.1 million and $379.8 million, respectively, with a weighted average effective interest rate and tenor for these outstanding borrowings of 0.42%; 26.6 days and 0.49%; 47.2 days, respectively. We have a revolving credit facility in Europe to provide €150 million on an uncommitted basis through September 2014. As of MarchB 31, 2014, and DecemberB 31, 2013, the outstanding borrowings under this revolving credit facility were $123.9 million (€90.0 million) and $137.4 million (€100.0 million), respectively. As of MarchB 31, 2014, and DecemberB 31, 2013, there were no outstanding borrowings under our $400 million or $550 million revolving credit facilities which mature in the second quarters of 2015 and 2016, respectively. As of MarchB 31, 2014, we have $573.0 million available to draw on, as the borrowing capacity is reduced by borrowings under our commercial paper program discussed above and our letters of credit in Canada.As of MarchB 31, 2014, and DecemberB 31, 2013, we had outstanding borrowings of $3.7 million and $3.1 million, respectively, under the Japanese Yen line of credit and no borrowings under the GBP and CAD facilities. Our Europe segment has a notional cross-border, cross-currency cash pool for the majority of its subsidiaries. As of MarchB 31, 2014, we had $114.1 million in bank overdrafts and $139.2 million in bank cash related to the pool for a net positive position of $25.1 million. As of DecemberB 31, 2013, we were not in an overdraft position on a net basis. Also included in short-term borrowings is $22.6 million and $4.8 million related to factoring arrangements and other short-term borrowings within our Europe business as of MarchB 31, 2014, and DecemberB 31, 2013, respectively.

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) Table 1 (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]	'	'
Balance at December 31, 2013	$154.90	'
Foreign currency translation adjustments	-135.6	'
Unrealized gain (loss) on derivative instruments	21.5	'
Reclassification of derivative (gain) loss to income	-4.7	'
Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income	8.3	'
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	4.5	'
Tax benefit (expense)	-55.5	'
Total other comprehensive income (loss), net of tax	-161.5	-261.2
Balance at March 31, 2014	-6.6	'
Foreign currency translation adjustments	'	'
Accumulated Other Comprehensive Income (Loss) [Roll Forward]	'	'
Balance at December 31, 2013	979.1	'
Foreign currency translation adjustments	-126.8	'
Unrealized gain (loss) on derivative instruments	0	'
Reclassification of derivative (gain) loss to income	0	'
Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income	0	'
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	0	'
Tax benefit (expense)	-46.4	'
Balance at March 31, 2014	805.9	'
Gain (loss) on derivative instruments	'	'
Accumulated Other Comprehensive Income (Loss) [Roll Forward]	'	'
Balance at December 31, 2013	14.6	'
Foreign currency translation adjustments	-8.9	'
Unrealized gain (loss) on derivative instruments	21.5	'
Reclassification of derivative (gain) loss to income	-4.7	'
Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income	0	'
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	0	'
Tax benefit (expense)	-5.5	'
Balance at March 31, 2014	17	'
Pension and postretirement benefit adjustments	'	'
Accumulated Other Comprehensive Income (Loss) [Roll Forward]	'	'
Balance at December 31, 2013	-556.3	'
Foreign currency translation adjustments	0.1	'
Unrealized gain (loss) on derivative instruments	0	'
Reclassification of derivative (gain) loss to income	0	'
Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income	8.3	'
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	0	'
Tax benefit (expense)	-0.7	'
Balance at March 31, 2014	-548.6	'
Equity method investments	'	'
Accumulated Other Comprehensive Income (Loss) [Roll Forward]	'	'
Balance at December 31, 2013	-282.5	'
Foreign currency translation adjustments	0	'
Unrealized gain (loss) on derivative instruments	0	'
Reclassification of derivative (gain) loss to income	0	'
Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income	0	'
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	4.5	'
Tax benefit (expense)	-2.9	'
Balance at March 31, 2014	($280.90)	'

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Income (Loss) Table 2 (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
Foreign currency forwards and commodity swaps	$523.20	$547.10
Total income (loss) reclassified, before tax	164.8	30.8
Income tax benefit (expense)	-4.8	-2
Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'
Net income (loss) reclassified, net of tax	-4.4	-10.7
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain/(loss) on cash flow hedges [Member]	'	'
Total income (loss) reclassified, before tax	4.7	-0.2
Income tax benefit (expense)	-1.5	0.1
Net income (loss) reclassified, net of tax	3.2	-0.1
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain/(loss) on cash flow hedges [Member] | Other income (expense), net [Member]	'	'
Foreign currency forwards, other	1.6	-0.1
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain/(loss) on cash flow hedges [Member] | Cost of goods sold [Member]	'	'
Foreign currency forwards and commodity swaps	3.3	0.5
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain/(loss) on cash flow hedges [Member] | Forward starting interest rate swaps [Member] | Interest expense, net [Member]	'	'
Forward starting interest rate swaps	-0.4	-0.4
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain/(loss) on cash flow hedges [Member] | Commodity swaps [Member] | Cost of goods sold [Member]	'	'
Foreign currency forwards and commodity swaps	0.2	-0.2
Reclassification out of Accumulated Other Comprehensive Income [Member] | Amortization of defined benefit pension and other postretirement benefit plan items [Member]	'	'
Prior service benefit (cost)	-0.6	-0.7
Net actuarial gain (loss)	-8.9	-14.2
Total income (loss) reclassified, before tax	-8.3	-13.5
Income tax benefit (expense)	0.7	2.9
Net income (loss) reclassified, net of tax	($7.60)	($10.60)

Derivative_Instruments_and_Hed2

Derivative Instruments and Hedging Activities Narrative (Details)	12 Months Ended	46 Months Ended
	Mar. 31, 2015	Dec. 31, 2017	3-May-12	Jun. 15, 2012
	Forecast	Forecast	Senior Notes [Member]	Zero Coupon Senior Unsecured Note [Member]
	USD ($)		USD ($)	Molson Coors Central Europe (MCCE)
	M			Convertible Debt [Member]
				EUR (€)
Schedule of Trading Securities and Other Trading Assets	'	'	'	'
Debt instrument, face amount	'	'	$1,900,000,000	€ 500,000,000
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)	$16,900,000	'	'	'
Term for Expected Losses Recorded in Accumulated Other Comprehensive Income	12	'	'	'
Maximum Length of Time Hedged in Cash Flow Hedge	'	'3 years 9 months	'	'

Derivative_Instruments_and_Hed3

Derivative Instruments and Hedging Activities Derivative Fair Value (Details) (Fair Value, Measurements, Recurring [Member], USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative, Fair Value, Net	$0	$0
Fair Value, Inputs, Level 1 [Member] | Cross currency swaps	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	'	0
Fair Value, Inputs, Level 1 [Member] | Foreign currency forwards	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	0	0
Fair Value, Inputs, Level 1 [Member] | Commodity swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	0	0
Fair Value, Inputs, Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative, Fair Value, Net	24.1	-56.9
Fair Value, Inputs, Level 2 [Member] | Cross currency swaps	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	'	-71.7
Fair Value, Inputs, Level 2 [Member] | Foreign currency forwards	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	-29.9	-19.7
Fair Value, Inputs, Level 2 [Member] | Commodity swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	-5.8	-4.9
Significant unobservable inputs (Level 3) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative, Fair Value, Net	0	0
Significant unobservable inputs (Level 3) [Member] | Cross currency swaps	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	'	0
Significant unobservable inputs (Level 3) [Member] | Foreign currency forwards	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	0	0
Significant unobservable inputs (Level 3) [Member] | Commodity swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	0	0
Reported Value Measurement [Member] | Estimate of Fair Value Measurement [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative, Fair Value, Net	24.1	-56.9
Reported Value Measurement [Member] | Estimate of Fair Value Measurement [Member] | Cross currency swaps	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	'	-71.7
Reported Value Measurement [Member] | Estimate of Fair Value Measurement [Member] | Foreign currency forwards	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	-29.9	-19.7
Reported Value Measurement [Member] | Estimate of Fair Value Measurement [Member] | Commodity swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	($5.80)	($4.90)

Derivative_Instruments_and_Hed4

Derivative Instruments and Hedging Activities Fair Value Balance Sheet (Details)

Mar. 31, 2014

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

In Millions, unless otherwise specified

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

USD ($)

USD ($)

Cross currency swaps

Cross currency swaps

Cross currency swaps

Foreign currency forwards

Foreign currency forwards

Foreign currency forwards

Foreign currency forwards

Foreign currency forwards

Foreign currency forwards

Foreign currency forwards

Foreign currency forwards

Foreign currency forwards

Foreign currency forwards

Commodity swaps [Member]

Commodity swaps [Member]

Commodity swaps [Member]

Commodity swaps [Member]

Commodity swaps [Member]

Commodity swaps [Member]

Commodity swaps [Member]

Commodity swaps [Member]

Commodity swaps [Member]

Commodity swaps [Member]

USD ($)

USD ($)

Commodity swaps [Member]

Commodity swaps [Member]

Commodity [Member]

Commodity [Member]

Commodity [Member]

Commodity [Member]

Commodity [Member]

Commodity [Member]

Commodity [Member]

Commodity [Member]

CAD

Other assets

Long term derivative liability

USD ($)

USD ($)

Other current assets

Other current assets

Other assets

Other assets

Current derivative liability

Current derivative liability

Long term derivative liability

Long term derivative liability

kWh

kWh

Other current assets

Other current assets

Other assets

Other assets

Current derivative liability

Current derivative liability

Long term derivative liability

Long term derivative liability

t

t

Other current assets

Other current assets

Other assets

Other assets

Current derivative liability

Current derivative liability

Long term derivative liability

Long term derivative liability

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Derivatives designated as hedging instruments:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Commodity swaps, Notional Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

846,200,000

848,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative asset, fair value, designated as hedging instrument

$30.70

$20

'

$0

'

'

'

$17

$11.50

$12.90

$8.20

'

'

'

'

'

'

$0.70

$0.20

$0.10

$0.10

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative fair value, liability

-1

-72.2

'

'

71.7

'

'

'

'

'

'

0

0

0

0

'

'

'

'

'

'

-0.8

-0.2

-0.2

-0.3

'

'

'

'

'

'

'

'

'

'

'

'

Derivative, Notional Amount

'

'

240.7

'

'

422.6

476.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivatives not designated as hedging instruments:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Commodity swaps, Notional Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

55,653

57,222

'

'

'

'

'

'

'

'

Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.3

0

'

'

0.2

0

0.1

0

'

'

'

'

Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

($5.90)

($4.70)

'

'

'

'

'

'

($2.20)

($2)

($3.70)

($2.70)

Derivative_Instruments_and_Hed5

Derivative Instruments and Hedging Activities Cash Flow Hedges (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
Cash Flow Hedging [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of (gain) loss recognized in OCI on derivative (effective portion)	$15	$9.50
Amount of gain (loss) recognized from AOCI on derivative (effective portion)	4.7	-0.2
Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)	0	0
Cash Flow Hedging [Member] | Interest Rate Swap [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of (gain) loss recognized in OCI on derivative (effective portion)	0	0
Cash Flow Hedging [Member] | Interest Rate Swap [Member] | Interest Expense [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of gain (loss) recognized from AOCI on derivative (effective portion)	-0.4	-0.4
Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)	0	0
Cash Flow Hedging [Member] | Foreign currency forwards	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of (gain) loss recognized in OCI on derivative (effective portion)	14.7	8.9
Cash Flow Hedging [Member] | Foreign currency forwards | Other Income Expense [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of gain (loss) recognized from AOCI on derivative (effective portion)	1.6	-0.1
Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)	0	0
Cash Flow Hedging [Member] | Foreign currency forwards | Cost of Sales [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of gain (loss) recognized from AOCI on derivative (effective portion)	3.3	0.5
Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)	0	0
Cash Flow Hedging [Member] | Commodity swaps [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of (gain) loss recognized in OCI on derivative (effective portion)	0.3	0.6
Cash Flow Hedging [Member] | Commodity swaps [Member] | Cost of Sales [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of gain (loss) recognized from AOCI on derivative (effective portion)	0.2	-0.2
Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)	0	0
Investment Hedge	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of (gain) loss recognized in OCI on derivative (effective portion)	6.5	17.9
Amount of gain (loss) recognized from AOCI on derivative (effective portion)	0	0
Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)	0	0
Investment Hedge | Cross currency swaps	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of (gain) loss recognized in OCI on derivative (effective portion)	6.5	14.2
Investment Hedge | Cross currency swaps | Other Income Expense [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of gain (loss) recognized from AOCI on derivative (effective portion)	0	0
Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)	0	0
Term Loan Agreement [Member] | Investment Hedge	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of (gain) loss recognized in OCI on derivative (effective portion)	'	3.7
Term Loan Agreement [Member] | Investment Hedge | Other Income Expense [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Amount of gain (loss) recognized from AOCI on derivative (effective portion)	'	0
Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)	'	$0

Derivative_Instruments_and_Hed6

Derivative Instruments and Hedging Activities Other Derivatives (Details) (Not Designated as Hedging Instrument [Member], USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
Other Income Expense [Member]	'	'
Gain (Loss) on Derivative Instruments:	'	'
Amount of Gain (Loss) Recognized in Income on Derivative	($1.30)	($40.10)
Equity conversion feature of debt | Interest Expense [Member]	'	'
Gain (Loss) on Derivative Instruments:	'	'
Amount of Gain (Loss) Recognized in Income on Derivative	'	-29.7
Equity conversion feature of debt | Other Income [Member]	'	'
Gain (Loss) on Derivative Instruments:	'	'
Amount of Gain (Loss) Recognized in Income on Derivative	'	0.2
Commodity swaps [Member] | Cost of goods sold [Member]	'	'
Gain (Loss) on Derivative Instruments:	'	'
Amount of Gain (Loss) Recognized in Income on Derivative	-1.3	0
Foreign currency forwards | Other Income [Member]	'	'
Gain (Loss) on Derivative Instruments:	'	'
Amount of Gain (Loss) Recognized in Income on Derivative	'	($10.60)

Pension_and_Other_Postretireme2

Pension and Other Postretirement Benefits (Details) (USD $)	3 Months Ended			3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2014	Mar. 30, 2013	Mar. 31, 2014	Mar. 30, 2013	Mar. 31, 2014	Mar. 30, 2013
			Defined Benefit Plans	Defined Benefit Plans and Other Postretirement Benefit, Cost [Member]	Defined Benefit Plans and Other Postretirement Benefit, Cost [Member]	Defined Benefit Plans and Other Postretirement Benefit, Cost [Member]	Defined Benefit Plans and Other Postretirement Benefit, Cost [Member]	Defined Benefit Plans and Other Postretirement Benefit, Cost [Member]	Defined Benefit Plans and Other Postretirement Benefit, Cost [Member]
						Defined Benefit Plans	Defined Benefit Plans	Other Postretirement Benefits	Other Postretirement Benefits
Pension and other post-retirement benefits details:	'	'	'	'	'	'	'	'	'
Pension and other postretirement defined benefit plans, noncurrent liabilities	$436.50	$462.60	'	'	'	'	'	'	'
Net periodic pension costs under retirement plans and other postretirement benefits:	'	'	'	'	'	'	'	'	'
Service cost - benefits earned during the period	'	'	'	4	4.9	3.3	4	0.7	0.9
Interest cost on projected benefit obligation	'	'	'	43.8	41.2	42.1	39.4	1.7	1.8
Expected return on plan assets	'	'	'	-49.1	-44.7	-49.1	-44.7	0	0
Amortization of prior service cost (benefit)	'	'	'	-0.6	-0.7	0.2	0.2	-0.8	-0.9
Amortization of net actuarial loss (gain)	'	'	'	8.9	14.2	9.1	14.3	-0.2	-0.1
Less: expected participant contributions	'	'	'	-0.3	-0.3	-0.3	-0.3	0	0
Net periodic pension and OPEB cost	'	'	'	6.7	14.6	5.3	12.9	1.4	1.7
Contributions paid to defined benefit plans	14.9	'	'	'	'	'	'	'	'
Expected total defined benefit plan employer contributions	'	'	20	'	'	'	'	'	'
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year, High End of Range	'	'	$40	'	'	'	'	'	'

Commitments_and_Contingencies_

Commitments and Contingencies Loss Contingency (Details)

1 Months Ended

3 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2009

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 1990

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 30, 2013

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 30, 2013

CAD

USD ($)

USD ($)

Kaiser purchased tax credits indemnity reserve, category two

Kaiser Tax, Civil and Labor Indemnity Reserve [Member]

Environmental matters Lowry [Member]

Environmental matters Lowry [Member]

Other [Member]

Other [Member]

Licensing Agreements [Member]

Licensing Agreements [Member]

Licensing Agreements [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Cervejarias Kaiser Brasil S.A. [Member]

Cervejarias Kaiser Brasil S.A. [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Canada [Member]

Other [Member]

Other [Member]

License Agreement Terms [Member]

USD ($)

USD ($)

USD ($)

Loss Contingencies [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain (loss) discontinued operations

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

($1.90)

($0.90)

Equity interest sold (as a percent)

'

'

'

'

68.00%

'

'

'

'

'

'

'

'

'

'

'

'

Maximum potential claims

'

'

'

154.2

68

'

'

'

'

'

'

'

'

'

'

'

'

Guarantees

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Letter of credit provided to entity

10

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Guarantees related to banks and other third parties noncurrent portion

'

5.5

5.8

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Litigation and Other Disputes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accrued liabilities, litigations and disputes

'

15.4

14

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain on litigation, favorable outcome

'

13

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income tax benefit, litigation settlement

'

-18.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment of Intangible Assets, Finite-lived

'

'

'

'

'

'

'

'

'

'

'

17.9

'

'

'

'

'

License and Services Revenue

'

'

'

'

'

'

'

'

'

13.9

17.2

'

'

'

'

'

'

Finite-Lived Intangible Assets, Net

'

'

'

'

'

'

'

0

0

34

'

4.9

'

'

'

'

'

Useful life - minimum (in years)

'

'

'

'

'

'

'

'

'

'

'

'

'2 years

'2 years

'3 years

'

'

Environmental

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Environmental remediation expense, pretax charge

'

'

'

'

'

30

'

'

'

'

'

'

'

'

'

'

'

Environmental remediation threshold, assumed remediation cost

'

'

'

'

'

'

120

'

'

'

'

'

'

'

'

'

'

Inflation rate assumption, future costs (as a percent)

'

'

'

'

'

'

2.50%

'

'

'

'

'

'

'

'

'

'

Risk free rate of return assumption (as a percent)

'

'

'

'

'

'

3.15%

'

'

'

'

'

'

'

'

'

'

Site contingency, accrual, present value

'

'

'

'

'

'

2.8

'

'

'

'

'

'

'

'

'

'

Site contingency, accrual, undiscounted amount

'

'

'

'

'

'

$7.30

'

'

'

'

'

'

'

'

'

'

Supplemental_Guarantor_Informa2

Supplemental Guarantor Information Supplemental Narrative (Details)

3 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

12 Months Ended

Mar. 31, 2014

Mar. 30, 2013

Dec. 31, 2013

Jun. 29, 2013

Mar. 30, 2013

Jun. 29, 2013

Jun. 29, 2013

Mar. 30, 2013

Jun. 29, 2013

Mar. 31, 2014

Mar. 30, 2013

Dec. 31, 2013

3-May-12

Jun. 15, 2007

Oct. 06, 2010

3-May-12

3-May-12

3-May-12

Sep. 22, 2005

Dec. 25, 2010

Sep. 22, 2005

Sep. 22, 2005

USD ($)

USD ($)

USD ($)

As Reported [Member]

As Reported [Member]

As Reported [Member]

As Adjusted [Member]

As Adjusted [Member]

As Adjusted [Member]

Parent Guarantor, 2007 and 2012 Issuer [Member]

Parent Guarantor, 2007 and 2012 Issuer [Member]

Parent Guarantor, 2007 and 2012 Issuer [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Convertible Senior Notes Due 2013 $575 Million 2.5% [Member]

Series A notes due 2017 CAD 500 million 3.95% [Member]

Parent Company [Member]

Parent Company [Member]

Parent Company [Member]

Issuer 2005 And Issuer 2010 [Member]

Issuer 2005 And Issuer 2010 [Member]

Issuer 2005 And Issuer 2010 [Member]

Issuer 2005 And Issuer 2010 [Member]

USD ($)

USD ($)

Senior Notes Due 2017 $300M 2.0% [Member]

Senior Notes Due 2022 $500M 3.5% [Member]

Senior Notes Due 2042 $1.1B 5.0% [Member]

USD ($)

Senior Notes 4.85 Percent and 5 Percent due 2010 and 2015 [Member]

Senior Notes 4.85 Percent and 5 Percent due 2010 and 2015 [Member]

Series A notes due 2017 CAD 500 million 3.95% [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

CAD

Debt instrument, face amount

'

'

'

'

'

'

'

'

'

'

'

'

$1,900,000,000

$575,000,000

$500,000,000

$300,000,000

$500,000,000

$1,100,000,000

$1,100,000,000

'

$300,000,000

900,000,000

Comprehensive income (loss) attributable to Molson Coors Brewing Company

1,900,000

-232,700,000

'

225,900,000

-206,200,000

19,700,000

180,600,000

-232,700,000

-52,100,000

1,900,000

-232,700,000

'

'

'

'

'

'

'

'

'

'

'

Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures

'

'

'

'

'

'

'

'

'

12,930,300,000

'

12,860,900,000

'

'

'

'

'

'

'

'

'

'

Stockholders' Equity Attributable to Parent

8,600,900,000

'

8,638,900,000

'

'

'

'

'

'

8,600,900,000

'

8,638,900,000

'

'

'

'

'

'

'

'

'

'

Debt instrument, interest rate percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.95%

2.00%

3.50%

5.00%

'

'

4.85%

5.00%

Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$300,000,000

'

'

Supplemental_Guarantor_Informa3

Supplemental Guarantor Information Income statement (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS	'	'
Sales	$1,178.30	$1,184.80
Excise taxes	-362.3	-356.3
Net sales	816	828.5
Cost of goods sold	-523.2	-547.1
Gross profit	292.8	281.4
Marketing, general and administrative expenses	-263.9	-293.9
Special items, net	52.5	-1.5
Equity income in MillerCoors	122.8	117.4
Operating income (loss)	204.2	103.4
Interest income (expense), net	-35.4	-74.9
Other income (expense), net	0.8	4.3
Income (loss) from continuing operations before income taxes	169.6	32.8	[1]
Income tax benefit (expense)	-4.8	-2
Net Income (loss) from continuing operations	164.8	30.8
Income (loss) from discontinued operations, net of tax	-1.9	-0.9	[1]
Net income (loss) including noncontrolling interests	162.9	29.9
Add back (less): Loss (net income) attributable to noncontrolling interests	0.5	-1.4
Net income (loss) attributable to MCBC	163.4	28.5	[1]
Comprehensive income attributable to MCBC	1.9	-232.7
Parent Guarantor, 2007 and 2012 Issuer [Member]	'	'
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS	'	'
Sales	8	3.9
Excise taxes	0	0
Net sales	8	3.9
Cost of goods sold	0	0
Gross profit	8	3.9
Marketing, general and administrative expenses	-31.2	-37.1
Special items, net	0	-0.3
Equity income (loss) in subsidiaries	201.4	99.6
Equity income in MillerCoors	0	0
Operating income (loss)	178.2	66.1
Interest income (expense), net	-21.4	-26
Other income (expense), net	0.3	-13.6
Income (loss) from continuing operations before income taxes	157.1	26.5
Income tax benefit (expense)	6.3	2
Net Income (loss) from continuing operations	163.4	28.5
Income (loss) from discontinued operations, net of tax	0	0
Net income (loss) including noncontrolling interests	163.4	28.5
Add back (less): Loss (net income) attributable to noncontrolling interests	0	0
Net income (loss) attributable to MCBC	163.4	28.5
Comprehensive income attributable to MCBC	1.9	-232.7
Subsidiary Guarantors	'	'
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS	'	'
Sales	950.8	972.8
Excise taxes	-304.9	-303.8
Net sales	645.9	669
Cost of goods sold	-404.7	-427.7
Gross profit	241.2	241.3
Marketing, general and administrative expenses	-173.8	-184.3
Special items, net	-10.7	-0.8
Equity income (loss) in subsidiaries	-33.7	-151.3
Equity income in MillerCoors	122.8	117.4
Operating income (loss)	145.8	22.3
Interest income (expense), net	75.8	48.1
Other income (expense), net	2	30.8
Income (loss) from continuing operations before income taxes	223.6	101.2
Income tax benefit (expense)	-15.3	-3
Net Income (loss) from continuing operations	208.3	98.2
Income (loss) from discontinued operations, net of tax	0	0
Net income (loss) including noncontrolling interests	208.3	98.2
Add back (less): Loss (net income) attributable to noncontrolling interests	0	0
Net income (loss) attributable to MCBC	208.3	98.2
Comprehensive income attributable to MCBC	94	-124.5
Subsidiary Non-Guarantors	'	'
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS	'	'
Sales	259	240.4
Excise taxes	-57.4	-52.5
Net sales	201.6	187.9
Cost of goods sold	-142.8	-146.7
Gross profit	58.8	41.2
Marketing, general and administrative expenses	-74.1	-77.5
Special items, net	63.2	-0.4
Equity income (loss) in subsidiaries	21.2	35.2
Equity income in MillerCoors	0	0
Operating income (loss)	69.1	-1.5
Interest income (expense), net	-89.8	-97
Other income (expense), net	-1.5	-12.9
Income (loss) from continuing operations before income taxes	-22.2	-111.4
Income tax benefit (expense)	4.2	-1
Net Income (loss) from continuing operations	-18	-112.4
Income (loss) from discontinued operations, net of tax	-1.9	-0.9
Net income (loss) including noncontrolling interests	-19.9	-113.3
Add back (less): Loss (net income) attributable to noncontrolling interests	0.5	-1.4
Net income (loss) attributable to MCBC	-19.4	-114.7
Comprehensive income attributable to MCBC	-21.9	-226
Eliminations	'	'
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS	'	'
Sales	-39.5	-32.3
Excise taxes	0	0
Net sales	-39.5	-32.3
Cost of goods sold	24.3	27.3
Gross profit	-15.2	-5
Marketing, general and administrative expenses	15.2	5
Special items, net	0	0
Equity income (loss) in subsidiaries	-188.9	16.5
Equity income in MillerCoors	0	0
Operating income (loss)	-188.9	16.5
Interest income (expense), net	0	0
Other income (expense), net	0	0
Income (loss) from continuing operations before income taxes	-188.9	16.5
Income tax benefit (expense)	0	0
Net Income (loss) from continuing operations	-188.9	16.5
Income (loss) from discontinued operations, net of tax	0	0
Net income (loss) including noncontrolling interests	-188.9	16.5
Add back (less): Loss (net income) attributable to noncontrolling interests	0	0
Net income (loss) attributable to MCBC	-188.9	16.5
Comprehensive income attributable to MCBC	-72.1	350.5
Consolidated [Member]	'	'
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS	'	'
Sales	1,178.30	1,184.80
Excise taxes	-362.3	-356.3
Net sales	816	828.5
Cost of goods sold	-523.2	-547.1
Gross profit	292.8	281.4
Marketing, general and administrative expenses	-263.9	-293.9
Special items, net	52.5	-1.5
Equity income (loss) in subsidiaries	0	0
Equity income in MillerCoors	122.8	117.4
Operating income (loss)	204.2	103.4
Interest income (expense), net	-35.4	-74.9
Other income (expense), net	0.8	4.3
Income (loss) from continuing operations before income taxes	169.6	32.8
Income tax benefit (expense)	-4.8	-2
Net Income (loss) from continuing operations	164.8	30.8
Income (loss) from discontinued operations, net of tax	-1.9	-0.9
Net income (loss) including noncontrolling interests	162.9	29.9
Add back (less): Loss (net income) attributable to noncontrolling interests	0.5	-1.4
Net income (loss) attributable to MCBC	163.4	28.5
Comprehensive income attributable to MCBC	$1.90	($232.70)
[1]	Amounts have been adjusted to reflect the change in interim accounting for advertising expenses. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further discussion.

Supplemental_Guarantor_Informa4

Supplemental Guarantor Information Balance Sheet (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 30, 2013	Dec. 29, 2012
In Millions, unless otherwise specified
Current assets:	'	'	'	'
Cash and cash equivalents	$337.60	$442.30	$511.50	$624
Accounts receivable, net	552.1	603.6	'	'
Other receivables, net	161.3	124.4	'	'
Total inventories, net	263.2	205.3	'	'
Other current assets, net	123.7	111.7	'	'
Deferred tax assets	46.4	50.4	'	'
Total current assets	1,484.30	1,537.70	'	'
Properties, net	1,936.20	1,970.10	'	'
Goodwill	2,394.70	2,418.70	'	'
Other intangibles, net	6,652.30	6,825.10	'	'
Investment in MillerCoors	2,608.50	2,506.50	'	'
Deferred tax assets	15.7	38.3	'	'
Total assets	15,365.80	15,580.10	'	'
Current liabilities :	'	'	'	'
Deferred tax liabilities	167.3	138.1	'	'
Current portion of long-term debt and short-term borrowings	630.4	586.9	'	'
Discontinued operations	7.1	6.8	'	'
Total current liabilities	2,071.80	2,142.10	'	'
Long-term debt	3,162.30	3,213	'	'
Pension and post-retirement benefits	436.5	462.6	'	'
Deferred tax liabilities	932.5	911.4	'	'
Discontinued operations	18	17.3	'	'
Total liabilities	6,741.10	6,916.30	'	'
MCBC stockholders' equity	8,600.90	8,638.90	'	'
Noncontrolling interests	23.8	24.9	'	'
Total equity	8,624.70	8,663.80	'	'
Total liabilities and equity	15,365.80	15,580.10	'	'
Parent Guarantor, 2007 and 2012 Issuer [Member]	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	28.6	90.6	107.8	189.8
Accounts receivable, net	0.4	0.7	'	'
Other receivables, net	65.8	48	'	'
Total inventories, net	0	0	'	'
Other current assets, net	9.1	8.4	'	'
Deferred tax assets	0	0	'	'
Intercompany accounts receivable	0	0	'	'
Total current assets	103.9	147.7	'	'
Properties, net	31.7	31	'	'
Goodwill	0	0	'	'
Other intangibles, net	0	0	'	'
Investment in MillerCoors	0	0	'	'
Net investment in and advances to subsidiaries	12,930.30	12,860.90	'	'
Deferred tax assets	8.5	28.8	'	'
Other assets	34.8	35.5	'	'
Total assets	13,109.20	13,103.90	'	'
Current liabilities :	'	'	'	'
Accounts payable and other current liabilities	67.7	52.2	'	'
Deferred tax liabilities	10.6	8.8	'	'
Current portion of long-term debt and short-term borrowings	351.1	379.7	'	'
Discontinued operations	0	0	'	'
Intercompany accounts payable	2,173.40	2,120.70	'	'
Total current liabilities	2,602.80	2,561.40	'	'
Long-term debt	1,896.20	1,896.20	'	'
Pension and post-retirement benefits	2.6	2.6	'	'
Deferred tax liabilities	0	0	'	'
Other liabilities, net	9.8	8	'	'
Discontinued operations	0	0	'	'
Intercompany notes payable	0	0	'	'
Total liabilities	4,511.40	4,468.20	'	'
MCBC stockholders' equity	8,600.90	8,638.90	'	'
Intercompany notes receivable	-3.1	-3.2	'	'
Total stockholders' equity	8,597.80	8,635.70	'	'
Noncontrolling interests	0	0	'	'
Total equity	8,597.80	8,635.70	'	'
Total liabilities and equity	13,109.20	13,103.90	'	'
Subsidiary Guarantors	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	108.3	248.7	259.3	249.3
Accounts receivable, net	405.8	466.3	'	'
Other receivables, net	57.6	56.5	'	'
Total inventories, net	215.1	166.8	'	'
Other current assets, net	64.1	60.1	'	'
Deferred tax assets	1.4	0	'	'
Intercompany accounts receivable	3,340.50	3,186.80	'	'
Total current assets	4,192.80	4,185.20	'	'
Properties, net	1,241.70	1,282.80	'	'
Goodwill	1,155.90	1,161.80	'	'
Other intangibles, net	4,130.70	4,292.30	'	'
Investment in MillerCoors	2,608.50	2,506.50	'	'
Net investment in and advances to subsidiaries	3,428.50	3,303.70	'	'
Deferred tax assets	1.9	3.1	'	'
Other assets	177.1	175	'	'
Total assets	16,937.10	16,910.40	'	'
Current liabilities :	'	'	'	'
Accounts payable and other current liabilities	845.3	998.6	'	'
Deferred tax liabilities	159.5	132.2	'	'
Current portion of long-term debt and short-term borrowings	15	61.8	'	'
Discontinued operations	0	0	'	'
Intercompany accounts payable	258.1	228.3	'	'
Total current liabilities	1,277.90	1,420.90	'	'
Long-term debt	1,266	1,316.60	'	'
Pension and post-retirement benefits	427	453.3	'	'
Deferred tax liabilities	0.2	0	'	'
Other liabilities, net	22.9	22.4	'	'
Discontinued operations	0	0	'	'
Intercompany notes payable	1,546.70	1,693.90	'	'
Total liabilities	4,540.70	4,907.10	'	'
MCBC stockholders' equity	18,403.80	18,332.50	'	'
Intercompany notes receivable	-6,007.40	-6,329.20	'	'
Total stockholders' equity	12,396.40	12,003.30	'	'
Noncontrolling interests	0	0	'	'
Total equity	12,396.40	12,003.30	'	'
Total liabilities and equity	16,937.10	16,910.40	'	'
Subsidiary Non-Guarantors	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	200.7	103	144.4	184.9
Accounts receivable, net	145.9	136.6	'	'
Other receivables, net	37.9	19.9	'	'
Total inventories, net	48.1	38.5	'	'
Other current assets, net	50.5	43.2	'	'
Deferred tax assets	47.8	53.3	'	'
Intercompany accounts receivable	167.8	196.5	'	'
Total current assets	698.7	591	'	'
Properties, net	662.8	656.3	'	'
Goodwill	1,238.80	1,256.90	'	'
Other intangibles, net	2,521.60	2,532.80	'	'
Investment in MillerCoors	0	0	'	'
Net investment in and advances to subsidiaries	6,500.60	6,654.90	'	'
Deferred tax assets	0.1	1	'	'
Other assets	62.2	73.2	'	'
Total assets	11,684.80	11,766.10	'	'
Current liabilities :	'	'	'	'
Accounts payable and other current liabilities	354	359.5	'	'
Deferred tax liabilities	0	0	'	'
Current portion of long-term debt and short-term borrowings	264.3	145.4	'	'
Discontinued operations	7.1	6.8	'	'
Intercompany accounts payable	1,076.80	1,034.30	'	'
Total current liabilities	1,702.20	1,546	'	'
Long-term debt	0.1	0.2	'	'
Pension and post-retirement benefits	6.9	6.7	'	'
Deferred tax liabilities	927.1	906	'	'
Other liabilities, net	87.3	139.5	'	'
Discontinued operations	18	17.3	'	'
Intercompany notes payable	5,824.50	6,138.90	'	'
Total liabilities	8,566.10	8,754.60	'	'
MCBC stockholders' equity	4,455.60	4,487	'	'
Intercompany notes receivable	-1,360.70	-1,500.40	'	'
Total stockholders' equity	3,094.90	2,986.60	'	'
Noncontrolling interests	23.8	24.9	'	'
Total equity	3,118.70	3,011.50	'	'
Total liabilities and equity	11,684.80	11,766.10	'	'
Eliminations	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	0	0	0	0
Accounts receivable, net	0	0	'	'
Other receivables, net	0	0	'	'
Total inventories, net	0	0	'	'
Other current assets, net	0	0	'	'
Deferred tax assets	-2.8	-2.9	'	'
Intercompany accounts receivable	-3,508.30	-3,383.30	'	'
Total current assets	-3,511.10	-3,386.20	'	'
Properties, net	0	0	'	'
Goodwill	0	0	'	'
Other intangibles, net	0	0	'	'
Investment in MillerCoors	0	0	'	'
Net investment in and advances to subsidiaries	-22,859.40	-22,819.50	'	'
Deferred tax assets	5.2	5.4	'	'
Other assets	0	0	'	'
Total assets	-26,365.30	-26,200.30	'	'
Current liabilities :	'	'	'	'
Accounts payable and other current liabilities	0	0	'	'
Deferred tax liabilities	-2.8	-2.9	'	'
Current portion of long-term debt and short-term borrowings	0	0	'	'
Discontinued operations	0	0	'	'
Intercompany accounts payable	-3,508.30	-3,383.30	'	'
Total current liabilities	-3,511.10	-3,386.20	'	'
Long-term debt	0	0	'	'
Pension and post-retirement benefits	0	0	'	'
Deferred tax liabilities	5.2	5.4	'	'
Other liabilities, net	0	0	'	'
Discontinued operations	0	0	'	'
Intercompany notes payable	-7,371.20	-7,832.80	'	'
Total liabilities	-10,877.10	-11,213.60	'	'
MCBC stockholders' equity	-22,859.40	-22,819.50	'	'
Intercompany notes receivable	7,371.20	7,832.80	'	'
Total stockholders' equity	-15,488.20	-14,986.70	'	'
Noncontrolling interests	0	0	'	'
Total equity	-15,488.20	-14,986.70	'	'
Total liabilities and equity	-26,365.30	-26,200.30	'	'
Consolidated [Member]	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	337.6	442.3	511.5	624
Accounts receivable, net	552.1	603.6	'	'
Other receivables, net	161.3	124.4	'	'
Total inventories, net	263.2	205.3	'	'
Other current assets, net	123.7	111.7	'	'
Deferred tax assets	46.4	50.4	'	'
Intercompany accounts receivable	0	0	'	'
Total current assets	1,484.30	1,537.70	'	'
Properties, net	1,936.20	1,970.10	'	'
Goodwill	2,394.70	2,418.70	'	'
Other intangibles, net	6,652.30	6,825.10	'	'
Investment in MillerCoors	2,608.50	2,506.50	'	'
Net investment in and advances to subsidiaries	0	0	'	'
Deferred tax assets	15.7	38.3	'	'
Other assets	274.1	283.7	'	'
Total assets	15,365.80	15,580.10	'	'
Current liabilities :	'	'	'	'
Accounts payable and other current liabilities	1,267	1,410.30	'	'
Deferred tax liabilities	167.3	138.1	'	'
Current portion of long-term debt and short-term borrowings	630.4	586.9	'	'
Discontinued operations	7.1	6.8	'	'
Intercompany accounts payable	0	0	'	'
Total current liabilities	2,071.80	2,142.10	'	'
Long-term debt	3,162.30	3,213	'	'
Pension and post-retirement benefits	436.5	462.6	'	'
Deferred tax liabilities	932.5	911.4	'	'
Other liabilities, net	120	169.9	'	'
Discontinued operations	18	17.3	'	'
Intercompany notes payable	0	0	'	'
Total liabilities	6,741.10	6,916.30	'	'
MCBC stockholders' equity	8,600.90	8,638.90	'	'
Intercompany notes receivable	0	0	'	'
Total stockholders' equity	8,600.90	8,638.90	'	'
Noncontrolling interests	23.8	24.9	'	'
Total equity	8,624.70	8,663.80	'	'
Total liabilities and equity	$15,365.80	$15,580.10	'	'

Supplemental_Guarantor_Informa5

Supplemental Guarantor Information Cash Flows (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 30, 2013
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS	'	'
Net cash provided by (used in) operating activities	$149.70	$118.40
Cash flows from investing activities:	'	'
Additions to properties	-65.3	-68.3
Proceeds from sales of properties and other assets	1.7	3.7
Investment in MillerCoors	-354.9	-331.8
Loan repayments	2.2	2.6
Loan advances	-16.7	-2.5
Net cash provided by (used in) investing activities	-173.5	-173.9
Cash flows from financing activities:	'	'
Exercise of stock options under equity compensation plans	20.2	27.2
Excess tax benefits from share-based compensation	2	1.6
Dividends paid	-68.2	-58.2
Payments for purchase of noncontrolling interest	-0.2	-0.2
Payments on long-term debt and capital lease obligations	-46.9	0
Payments on short-term borrowings	-12.5	-13.8
Payments on settlement of derivative instruments	65.2	0
Net proceeds from (payments on) revolving credit facilities and commercial paper	-41.8	-1.2
Net cash used in financing activities	-80.2	-35.2
Cash and cash equivalents:	'	'
Net increase (decrease) in cash and cash equivalents	-104	-90.7
Effect of foreign exchange rate changes on cash and cash equivalents	-0.7	-21.8
Balance at beginning of year	442.3	624
Balance at end of period	337.6	511.5
Parent Guarantor, 2007 and 2012 Issuer [Member]	'	'
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS	'	'
Net cash provided by (used in) operating activities	8	-58
Cash flows from investing activities:	'	'
Additions to properties	-3	-1.6
Proceeds from sales of properties and other assets	0	0
Investment in MillerCoors	0	0
Return of capital from MillerCoors	0	0
Loan repayments	0	0
Loan advances	0	0
Net intercompany investing activity	0	0
Net cash provided by (used in) investing activities	-3	-1.6
Cash flows from financing activities:	'	'
Exercise of stock options under equity compensation plans	20.2	27.2
Excess tax benefits from share-based compensation	2	1.6
Dividends paid	-60.2	-51.2
Payments for purchase of noncontrolling interest	0	0
Payments on long-term debt and capital lease obligations	-0.4	'
Proceeds from short-term borrowings	0	0
Payments on short-term borrowings	0	0
Payments on settlement of derivative instruments	0	'
Net proceeds from (payments on) revolving credit facilities and commercial paper	-28.6	0
Change in overdraft balances and other	0	0
Net intercompany financing activity	0	0
Net cash used in financing activities	-67	-22.4
Cash and cash equivalents:	'	'
Net increase (decrease) in cash and cash equivalents	-62	-82
Effect of foreign exchange rate changes on cash and cash equivalents	0	0
Balance at beginning of year	90.6	189.8
Balance at end of period	28.6	107.8
Subsidiary Guarantors	'	'
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS	'	'
Net cash provided by (used in) operating activities	98.1	174.6
Cash flows from investing activities:	'	'
Additions to properties	-42.5	-30.2
Proceeds from sales of properties and other assets	1.4	1.2
Investment in MillerCoors	-354.9	-331.8
Return of capital from MillerCoors	259.5	-222.4
Loan repayments	2.2	2.6
Loan advances	-1.6	-2.5
Net intercompany investing activity	140.1	-9.4
Net cash provided by (used in) investing activities	4.2	-147.7
Cash flows from financing activities:	'	'
Exercise of stock options under equity compensation plans	0	0
Excess tax benefits from share-based compensation	0	0
Dividends paid	0	0
Payments for purchase of noncontrolling interest	0	0
Payments on long-term debt and capital lease obligations	-46.4	'
Proceeds from short-term borrowings	0	0
Payments on short-term borrowings	0	0
Payments on settlement of derivative instruments	65.2	'
Net proceeds from (payments on) revolving credit facilities and commercial paper	0	0
Change in overdraft balances and other	0	-0.2
Net intercompany financing activity	-127.5	0
Net cash used in financing activities	-239.1	-0.2
Cash and cash equivalents:	'	'
Net increase (decrease) in cash and cash equivalents	-136.8	26.7
Effect of foreign exchange rate changes on cash and cash equivalents	-3.6	-16.7
Balance at beginning of year	248.7	249.3
Balance at end of period	108.3	259.3
Subsidiary Non-Guarantors	'	'
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS	'	'
Net cash provided by (used in) operating activities	43.6	2.5
Cash flows from investing activities:	'	'
Additions to properties	-19.8	-36.5
Proceeds from sales of properties and other assets	0.3	2.5
Investment in MillerCoors	0	0
Return of capital from MillerCoors	0	0
Loan repayments	0	0
Loan advances	-15.1	0
Net intercompany investing activity	127.5	0
Net cash provided by (used in) investing activities	92.9	-34
Cash flows from financing activities:	'	'
Exercise of stock options under equity compensation plans	0	0
Excess tax benefits from share-based compensation	0	0
Dividends paid	-8	-7.7
Payments for purchase of noncontrolling interest	-0.2	-0.2
Payments on long-term debt and capital lease obligations	-0.1	'
Proceeds from short-term borrowings	20.9	5.9
Payments on short-term borrowings	-12.5	-13.8
Payments on settlement of derivative instruments	0	'
Net proceeds from (payments on) revolving credit facilities and commercial paper	-13.2	-1.2
Change in overdraft balances and other	111.5	3.7
Net intercompany financing activity	-140.1	9.4
Net cash used in financing activities	-41.7	-3.9
Cash and cash equivalents:	'	'
Net increase (decrease) in cash and cash equivalents	94.8	-35.4
Effect of foreign exchange rate changes on cash and cash equivalents	2.9	-5.1
Balance at beginning of year	103	184.9
Balance at end of period	200.7	144.4
Eliminations	'	'
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS	'	'
Net cash provided by (used in) operating activities	0	-0.7
Cash flows from investing activities:	'	'
Additions to properties	0	0
Proceeds from sales of properties and other assets	0	0
Investment in MillerCoors	0	0
Return of capital from MillerCoors	0	0
Loan repayments	0	0
Loan advances	0	0
Net intercompany investing activity	-267.6	9.4
Net cash provided by (used in) investing activities	-267.6	9.4
Cash flows from financing activities:	'	'
Exercise of stock options under equity compensation plans	0	0
Excess tax benefits from share-based compensation	0	0
Dividends paid	0	0.7
Payments for purchase of noncontrolling interest	'	0
Payments on long-term debt and capital lease obligations	0	'
Proceeds from short-term borrowings	0	0
Payments on short-term borrowings	0	0
Payments on settlement of derivative instruments	0	'
Net proceeds from (payments on) revolving credit facilities and commercial paper	0	0
Change in overdraft balances and other	0	0
Net intercompany financing activity	267.6	-9.4
Net cash used in financing activities	267.6	-8.7
Cash and cash equivalents:	'	'
Net increase (decrease) in cash and cash equivalents	0	0
Effect of foreign exchange rate changes on cash and cash equivalents	0	0
Balance at beginning of year	0	0
Balance at end of period	0	0
Consolidated [Member]	'	'
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS	'	'
Net cash provided by (used in) operating activities	149.7	118.4
Cash flows from investing activities:	'	'
Additions to properties	-65.3	-68.3
Proceeds from sales of properties and other assets	1.7	3.7
Investment in MillerCoors	-354.9	-331.8
Return of capital from MillerCoors	259.5	-222.4
Loan repayments	2.2	2.6
Loan advances	-16.7	-2.5
Net intercompany investing activity	0	0
Net cash provided by (used in) investing activities	-173.5	-173.9
Cash flows from financing activities:	'	'
Exercise of stock options under equity compensation plans	20.2	27.2
Excess tax benefits from share-based compensation	2	1.6
Dividends paid	-68.2	-58.2
Payments for purchase of noncontrolling interest	-0.2	-0.2
Payments on long-term debt and capital lease obligations	-46.9	'
Proceeds from short-term borrowings	20.9	5.9
Payments on short-term borrowings	-12.5	-13.8
Payments on settlement of derivative instruments	65.2	'
Net proceeds from (payments on) revolving credit facilities and commercial paper	-41.8	-1.2
Change in overdraft balances and other	111.5	3.5
Net intercompany financing activity	0	0
Net cash used in financing activities	-80.2	-35.2
Cash and cash equivalents:	'	'
Net increase (decrease) in cash and cash equivalents	-104	-90.7
Effect of foreign exchange rate changes on cash and cash equivalents	-0.7	-21.8
Balance at beginning of year	442.3	624
Balance at end of period	$337.60	$511.50