Molson Coors Beverage (TAP) 10-Q 1 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Document - shares	6 Months Ended
	Jun. 30, 2018	Jul. 26, 2018
Entity Information [Line Items]
Entity Registrant Name	MOLSON COORS BREWING CO
Trading Symbol	tap
Entity Central Index Key	24,545
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Entity Filer Category	Large Accelerated Filer
Common Class A [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		2,560,668
Common Class B [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		195,617,180
Class A Exchangeable Shares [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		2,878,431
Class B Exchangeable Shares [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		14,691,557

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Sales	$ 3,820.5	$ 3,793.1	$ 6,688.5	$ 6,706.9
Excise taxes	(735.3)	(701.8)	(1,271.8)	(1,166.9)
Net Sales	3,085.2	3,091.3	5,416.7	5,540
Cost of Goods Sold	(1,739.1)	(1,755.5)	(3,274.8)	(3,127.8)
Gross profit	1,346.1	1,335.8	2,141.9	2,412.2
Marketing, general and administrative expenses	(744.7)	(782.4)	(1,425.8)	(1,487.7)
Special items, net	(10.5)	(16.5)	304.3	(23.2)
Operating income (loss)	590.9	536.9	1,020.4	901.3
Interest income (expense), net	(76.7)	(89.2)	(159.9)	(185.8)
Other pension and postretirement benefits (costs), net	9.9	9.4	19.9	22.7
Other income (expense), net	(1.1)	3.1	0	2.9
Income (loss) before income taxes	523	460.2	880.4	741.1
Income tax benefit (expense)	(92.2)	(125.2)	(167.1)	(191.1)
Net Income (loss)	430.8	335	713.3	550
Net (income) loss attributable to noncontrolling interests	(6.7)	(5.1)	(11.1)	(11.6)
Net income (loss) attributable to Molson Coors Brewing Company	$ 424.1	$ 329.9	$ 702.2	$ 538.4
Basic net income (loss) attributable to Molson Coors Brewing Company per share:
Income (Loss) from Continuing Operations, Per Basic Share	$ 1.96	$ 1.53	$ 3.25	$ 2.50
Diluted net income (loss) attributable to Molson Coors Brewing Company per share:
Income (Loss) from Continuing Operations, Per Diluted Share	$ 1.96	$ 1.52	$ 3.24	$ 2.49
Weighted average shares - basic (in shares)	216	215.4	215.9	215.3
Dilutive effect of share-based awards	0.5	1	0.7	1.1
Weighted average shares - diluted (in shares)	216.5	216.4	216.6	216.4
Dividends declared and paid per share (in dollars per share)	$ 0.41	$ 0.41	$ 0.82	$ 0.82
Stock Compensation Plan [Member]
Diluted net income (loss) attributable to Molson Coors Brewing Company per share:
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1.2	0.3	0.7	0.3

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 792.9	$ 418.6
Accounts receivable, net	984.9	733.8
Other receivables, net	131.1	168.2
Total inventories, net	637.5	591.5
Other current assets, net	341.1	277.6
Total current assets	2,887.5	2,189.7
Properties, net	4,599.4	4,673.7
Goodwill	8,332.6	8,405.5
Other intangibles, net	14,018.4	14,296.5
Other assets	723	681.5
Total assets	30,560.9	30,246.9
Current liabilities:
Accounts payable and other current liabilities	2,971	2,684.5
Current portion of long-term debt and short-term borrowings	1,411	714.8
Total current liabilities	4,382	3,399.3
Long-term debt	9,455.1	10,598.7
Pension and postretirement benefits	828.1	848.5
Deferred tax liabilities	1,771	1,648.6
Other liabilities	328.1	316.8
Total liabilities	16,764.3	16,811.9
Commitments and contingencies (Note 16)
Capital stock:
Preferred stock, $0.01 par value (authorized: 25.0 shares; none issued)	0	0
Paid-in capital	6,707	6,688.5
Retained earnings	7,703.5	7,206.1
Accumulated other comprehensive income (loss)	(1,025.4)	(860)
Class B common stock held in treasury at cost (9.5 shares and 9.5 shares, respectively)	(471.4)	(471.4)
Total Molson Coors Brewing Company stockholders' equity	13,576.6	13,226.1
Noncontrolling interests	220	208.9
Total equity	13,796.6	13,435
Total liabilities and equity	30,560.9	30,246.9
Class A common stock, voting [Member]
Capital stock:
Common stock - Class A, $0.01 par value (authorized: 500.0 shares; issued and outstanding: 2.6 shares and 2.6 shares, respectively); Class B, $0.01 par value (authorized: 500.0 shares; issued and outstanding: 205.1 shares and 204.7 shares, respectively)	0	0
Total equity	0	0
Class B common stock, non-voting [Member]
Capital stock:
Common stock - Class A, $0.01 par value (authorized: 500.0 shares; issued and outstanding: 2.6 shares and 2.6 shares, respectively); Class B, $0.01 par value (authorized: 500.0 shares; issued and outstanding: 205.1 shares and 204.7 shares, respectively)	2	2
Total equity	2	2
Class A Exchangeable Shares [Member]
Capital stock:
Exchangeable shares - Class A, no par value (issued and outstanding: 2.9 shares and 2.9 shares, respectively); Class B, no par value (issued and outstanding: 14.7 shares and 14.7 shares, respectively)	107.7	107.7
Total equity	107.7	107.7
Class B Exchangeable Shares [Member]
Capital stock:
Exchangeable shares - Class A, no par value (issued and outstanding: 2.9 shares and 2.9 shares, respectively); Class B, no par value (issued and outstanding: 14.7 shares and 14.7 shares, respectively)	553.2	553.2
Total equity	$ 553.2	$ 553.2

CONDENSED CONSOLIDATED STATEME4

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net income (loss) including noncontrolling interests	$ 430.8	$ 335	$ 713.3	$ 550
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(255)	310.9	(180.9)	392.5
Unrealized gain (loss) on derivative instruments	36.2	(68.6)	10.4	(77.2)
Reclassification of derivative (gain) loss to income	0.7	(0.4)	1.8	(0.4)
Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income	1.3	4.7	3	3.7
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	0.7	0.9	(0.5)	2
Total other comprehensive income (loss), net of tax	(216.1)	247.5	(166.2)	320.6
Comprehensive income (loss)	214.7	582.5	547.1	870.6
Comprehensive (income) loss attributable to noncontrolling interests	(5.1)	(6.3)	(10.3)	(13.2)
Comprehensive income (loss) attributable to Molson Coors Brewing Company	209.6	576.2	536.8	857.4
Consolidated [Member]
Other comprehensive income (loss), net of tax:
Comprehensive income (loss) attributable to Molson Coors Brewing Company	$ 209.6	$ 576.2	$ 536.8	$ 857.4

CONSOLIDATED BALANCE SHEETS (PA

CONSOLIDATED BALANCE SHEETS (PARENTHETICALS) - $ / shares shares in Millions	Jun. 30, 2018	Dec. 31, 2017
Preferred Stock, Non-voting, No Par Value	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	25	25
Preferred Stock, Shares Issued	0	0
Treasury Stock, Shares	9.5	9.5
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	205.1	204.7
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	14.7	14.7
Exchangeable Stock, Shares Outstanding	14.7	14.7

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income (loss) including noncontrolling interests	$ 713.3	$ 550
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	429.6	396
Amortization of debt issuance costs and discounts	7.2	11.2
Share-based compensation	25.1	31.6
(Gain) loss on sale or impairment of properties and other assets, net	0	(4.3)
Unrealized (gain) loss on foreign currency fluctuations and derivative instruments, net	38.4	(41.5)
Income tax (benefit) expense	167.1	191.1
Income tax (paid) received	20	23.5
Interest expense, excluding interest amortization	155.8	177.6
Interest paid	(152.5)	(175.4)
Pension expense (benefit)	(29.5)	(31.4)
Pension contributions paid	(5)	(72.1)
Change in current assets and liabilities (net of impact of business combinations) and other	(71.7)	(237.8)
Net Cash Provided by (Used in) Operating Activities	1,297.8	818.5
Cash flows from investing activities:
Additions to properties	(351.1)	(354)
Proceeds from sales of properties and other assets	4.4	46.1
Other	(50.5)	6
Net cash provided by (used in) investing activities	(397.2)	(301.9)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	6.3	1.1
Dividends paid	(177)	(176.6)
Payments on debt and borrowings	(2.4)	(2,201.5)
Proceeds on debt and borrowings	0	1,536
Net proceeds from (payments on) revolving credit facilities and commercial paper	(376.1)	282
Change in overdraft balances and other	24.5	(34.2)
Net cash provided by (used in) financing activities	(524.7)	(593.2)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	375.9	(76.6)
Effect of foreign exchange rate changes on cash and cash equivalents	(1.6)	18.6
Balance at beginning of year	418.6	560.9
Balance at end of period	$ 792.9	$ 502.9

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY AND NONCONTROLLING INTERESTS - USD ($) $ in Millions	Total	Class A common stock, voting [Member]	Common Class B [Member]	Exchangeable shares issued, Class A	Exchangeable shares issued, Class B	Paid-in capital	Retained earnings	AOCI Attributable to Parent [Member]	Common stock held in treasury, Class B	Noncontrolling interest
Balance at Dec. 31, 2016	$ 11,621.7	$ 0	$ 2	$ 108.1	$ 571.2	$ 6,635.3	$ 6,145.3	$ (1,571.8)	$ (471.4)	$ 203
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exchange of shares	0			(0.4)	(16.8)	17.2
Shares issued under equity compensation plan	(24.7)					(24.7)
Amortization of share-based compensation	30.7					30.7
Acquisition of business and purchase of noncontrolling interest	1.6									1.6
Net income (loss) including noncontrolling interests	550						538.4			11.6
Other comprehensive income (loss), net of tax	320.6							319		1.6
Dividends declared and paid	(184.5)						(176.6)			(7.9)
Balance at Jun. 30, 2017	12,315.4	0	2	107.7	554.4	6,658.5	6,507.1	(1,252.8)	(471.4)	209.9
Balance at Dec. 31, 2017	13,435	0	2	107.7	553.2	6,688.5	7,206.1	(860)	(471.4)	208.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under equity compensation plan	(6.4)					(6.4)
Amortization of share-based compensation	24.9					24.9
Acquisition of business and purchase of noncontrolling interest	(0.1)									(0.1)
Net income (loss) including noncontrolling interests	713.3						702.2			11.1
Other comprehensive income (loss), net of tax	(166.2)							(165.4)		(0.8)
Initial Application Period Cumulative Effect Transition for Accounting Standards Update 2014-09	(27.8)						(27.8)
Proceeds from (Payments to) Noncontrolling Interests	6.4									6.4
Dividends declared and paid	(182.5)						(177)			(5.5)
Balance at Jun. 30, 2018	$ 13,796.6	$ 0	$ 2	$ 107.7	$ 553.2	$ 6,707	$ 7,703.5	$ (1,025.4)	$ (471.4)	$ 220

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2018
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: MillerCoors LLC ("MillerCoors" or U.S. segment), operating in the United States; Molson Coors Canada ("MCC" or Canada segment), operating in Canada; Molson Coors Europe (Europe segment), operating in Bulgaria, Croatia, Czech Republic, Hungary, Montenegro, Republic of Ireland, Romania, Serbia, the United Kingdom and various other European countries; and Molson Coors International ("MCI" or International segment), operating in various other countries. Unless otherwise indicated, information in this report is presented in USD and comparisons are to comparable prior periods. Our primary operating currencies, other than USD, include the CAD, the GBP, and our Central European operating currencies such as the EUR, CZK, HRK and RSD. 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 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, 2017 ("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 included in our Annual Report, except as noted below and in Note 2, "New Accounting Pronouncements" . We adopted the FASB's new revenue recognition standard and the presentation of net periodic pension and other postretirement benefit cost standard during the first quarter of 2018. We also adopted the updated hedge accounting standard during the second quarter of 2018. The adoption of each of these accounting standards was effective January 1, 2018 . Our historical unaudited condensed consolidated financial statements have been revised to reflect the retrospective application of our change in accounting policy for calculating the market-related value of pension plan assets used to determine net periodic pension cost as discussed in our Annual Report. The results of operations for the three and six months ended June 30, 2018 , are not necessarily indicative of the results that may be achieved for the full year. Non-Cash Activity Non-cash activity includes non-cash issuances of share-based awards, as well as non-cash investing activities related to movements in our guarantee of indebtedness of certain equity method investments. See Note 4, "Investments" and Note 5, "Share-Based Payments" for further discussion. We also had non-cash activities related to capital expenditures incurred but not yet paid, and the recognition of capital leases. These non-cash activities are excluded from our unaudited condensed consolidated statements of cash flows and were $153.0 million and $163.1 million for the six months ended June 30, 2018 , and June 30, 2017 , respectively. Discontinued Operations We no longer present the activity related to foreign exchange movements nor the liabilities associated with our indemnities resulting from the historical sale of the Kaiser business (as discussed in Note 19 of the Notes included in our Annual Report) within discontinued operations and have accordingly reclassified the activity into other income within continuing operations of the unaudited condensed consolidated statements of operations, and the liabilities into other current and long-term liabilities within the unaudited condensed consolidated balance sheets. This change has been applied retrospectively and prospectively. As a result, we reclassified a foreign exchange gain from discontinued operations to other income (expense), net of $1.6 million and $1.0 million for the three and six months ended June 30, 2017 . Revenue Recognition We account for revenue in accordance with Accounting Standards Codification (“ASC”) Topic 606, Revenue from Contracts with Customers, which we adopted on January 1, 2018 , using the modified retrospective transition approach (see Note 2, "New Accounting Pronouncements" for impacts of adoption). Our net sales represent the sale of beer and other malt beverages (including adjacencies, such as cider and hard soda), net of excise tax. Sales are stated net of incentives, discounts and returns. Sales of products are for cash or otherwise agreed upon credit terms. Our payment terms vary by location and customer, however, the time period between when revenue is recognized and when payment is due is not significant. Our revenue generating activities have a single performance obligation and are recognized at the point in time when control transfers and our obligation has been fulfilled, which is when the related goods are shipped or delivered to the customer, depending upon the method of distribution and shipping terms. Where our products are sold under consignment arrangements, revenue is not recognized until control has transferred, which is when the product is sold to the end customer. Revenue is measured as the amount of consideration we expect to receive in exchange for the sale of our product. The cost of various programs, such as price promotions, rebates and coupons are treated as a reduction of sales. In certain of our markets, we make cash payments to customers such as slotting or listing fees, or payments for other marketing or promotional activities. These cash payments are recorded as a reduction of revenue unless we receive a distinct good or service as defined under ASC 606. Specifically, a good or service is considered distinct when it is separately identifiable from other promises in the contract, we receive a benefit from the good or service, and the benefit is separable from the sale of our product to the customer. Certain payments made to customers are conditional on the achievement of volume targets, marketing commitments, or both. If paid in advance, we record such payments as prepayments and amortize them over the relevant period to which the customer commitment is made (generally up to five years). When the payment is not for a distinct good or service, or fair value cannot be reasonably estimated, the amortization of the prepayment or the cost as incurred is recorded as a reduction of revenue. Where a distinct good or service is received and fair value can be reasonably estimated, the cost is included as marketing, general and administrative expenses. The amounts deferred are reassessed regularly for recoverability over the contract period and are impaired where there is objective evidence that the benefits will not be realized or the asset is otherwise not recoverable. Separately, as discussed below, we analyze whether these advance payments contain a significant financing component for potential adjustment to the transaction price. Our primary revenue generating activity represents the sale of beer and other malt beverages to customers, including both domestic and exported product sales. Our customer could be a distributor, retail or on-premise outlet, depending on the market. The majority of our revenues are generated from brands that we own and brew ourselves, however, we also import or brew and sell certain non-owned partner brands under licensing and related arrangements. In addition, primarily in the U.K., as well as certain other countries in our Europe segment, we sell other beverage companies' products to on-premise customers to provide them with a full range of products for their retail outlets. We refer to this as the "factored brand business." Sales from this business are included in our net sales and cost of goods sold when ultimately sold. In the factored brand business, we normally purchase inventory, which includes excise taxes charged by the vendor, take orders from customers for such brands, negotiate with the customers on pricing and invoice customers for the product and related costs of delivery. In addition, we incur the risk of loss at times we are in possession of the inventory and for the receivables due from the customers. Revenues for owned brands, partner and imported brands, as well as factored brands are recognized at the point in time when control is transferred to the customer as discussed above. Other Revenue Generating Activities We contract manufacture for other brewers in some of our markets. These contractual agreements require us to brew, package and ship certain brands to these brewers, who then sell the products to their own customers in their respective markets. Revenues under contract brewing arrangements are recognized when our obligation related to the finished product is fulfilled and control of the product transfers to these other brewers. We also have licensing agreements with third party partners who brew and distribute our products in various markets across our segments. Under these agreements, we are compensated based on the amount of products sold by our partners in these markets at an agreed upon royalty rate or profit percentage. We apply the sales-based royalty practical expedient to these licensing arrangements and recognize revenue as product is sold by our partners at the agreed upon rate. We have evaluated these other revenue generating activities under the disaggregation disclosure criteria outlined within the guidance and concluded that these other revenue generating activities are immaterial for separate disclosure. See Note 3, "Segment Reporting" , for disclosure of revenues by geographic segment. Variable Consideration Our revenue generating activities include variable consideration which is recorded as a reduction of the transaction price based upon expected amounts at the time revenue for the corresponding product sale is recognized. For example, customer promotional discount programs are entered into with certain distributors for certain periods of time. The amount ultimately reimbursed to distributors is determined based upon agreed-upon promotional discounts which are applied to distributors' sales to retailers. Other common forms of variable consideration include volume rebates for meeting established sales targets, and coupons and mail-in rebates offered to the end consumer. The determination of the reduction of the transaction price for variable consideration requires that we make certain estimates and assumptions that affect the timing and amounts of revenue and liabilities recorded. We estimate this variable consideration, including analyzing for a potential constraint on variable consideration, by taking into account factors such as the nature of the promotional activity, historical information and current trends, availability of actual results, and expectations of customer and consumer behavior. We do not have standard terms that permit return of product; however, in certain markets where returns occur we estimate the amount of returns as variable consideration based on historical return experience and adjust our revenue accordingly. Products that do not meet our high quality standards are returned by the customer or recalled and destroyed and are recorded as a reduction of revenue. The reversal of revenue is recorded upon determination that the product will be recalled and destroyed. We estimate the costs required to facilitate product returns and record them in cost of goods sold as required. During the three and six months ended June 30, 2018 , adjustments to revenue from performance obligations satisfied in the prior period due to changes in estimates in variable consideration were immaterial. Significant Financing Component and Costs to Obtain Contracts In certain of our businesses where such practices are legally permitted, we make loans or advanced payments to retail outlets that sell our brands. For arrangements that do not span greater than one year, we apply the practical expedient available under ASC 606 and do not adjust the transaction price for the effects of a potential significant financing component. We further analyze arrangements that span greater than one year on an ongoing basis to determine whether a significant financing component exists. No such arrangements existed during the six months ended June 30, 2018 . Advance payments to customers, where legally permitted, are deferred and amortized as a reduction to revenue over the expected period of benefit and tested for recoverability as appropriate. All other costs to obtain contracts and fulfill are expensed as incurred based on the nature, significance and expected benefit of these costs relative to the contract. Contract Assets and Liabilities We continually evaluate whether our revenue generating activities and advanced payment arrangements with customers result in the recognition of contract assets or liabilities. No such assets or liabilities existed as of June 30, 2018 , or December 31, 2017 . Separately, trade accounts receivable, including affiliate receivables, approximates receivables from contracts with customers. Shipping and Handling Freight costs billed to customers for shipping and handling are recorded as revenue. Shipping and handling expense related to costs incurred to deliver product are recognized within cost of goods sold. We account for shipping and handling activities that occur after control has transferred as a fulfillment cost as opposed to a separate performance obligation, and the costs of shipping and handling are recognized concurrently with the related revenue. Excise Tax Excise tax remitted to tax authorities are government-imposed excise taxes on beer. Excise taxes are shown in a separate line item in the unaudited condensed consolidated statements of operations as a reduction of sales. Excise taxes are recognized as a current liability within accounts payable and other current liabilities on the unaudited condensed consolidated balance sheets, with the liability subsequently reduced when the taxes are remitted to the tax authority. Net Periodic Pension Cost Revised Accounting Policy The following table presents the impacts to our quarterly information resulting from the retrospective application of our change in accounting policy for calculating the market-related value of pension plan assets used to determine net periodic pension cost effective in the fourth quarter of 2017 as discussed in Note 1 of the Notes of our Annual Report. The below "As Adjusted" amounts have been further adjusted to reflect the adoption of the accounting standard on the presentation of net periodic pension and postretirement benefit cost. See Note 2, "New Accounting Pronouncements" . Three Months Ended Three Months Ended Three Months Ended Three Months Ended March 31, 2017 June 30, 2017 September 30, 2017 December 31, 2017 As Reported As Adjusted As Reported As Adjusted As Reported As Adjusted Under Prior Method As Adjusted (In millions) Unaudited Condensed Consolidated Statements of Operations: Cost of goods sold $ (1,372.9 ) $ (1,367.7 ) $ (1,756.1 ) $ (1,750.7 ) $ (1,589.6 ) $ (1,584.1 ) $ (1,520.3 ) $ (1,514.7 ) Marketing, general and administrative expenses $ (702.8 ) $ (699.5 ) $ (781.2 ) $ (777.8 ) $ (782.8 ) $ (779.2 ) $ (779.4 ) $ (775.9 ) Special items, net $ (3.8 ) $ (3.8 ) $ (16.5 ) $ (16.5 ) $ (4.1 ) $ (4.1 ) $ (3.7 ) $ (3.7 ) Income tax benefit (expense) $ (64.6 ) $ (65.9 ) $ (123.0 ) $ (125.2 ) $ (145.3 ) $ (147.4 ) $ 392.4 $ 391.7 Net income (loss) attributable to MCBC $ 201.3 $ 208.5 $ 323.3 $ 329.9 $ 280.0 $ 287.0 $ 580.4 $ 588.8 Basic net income (loss) attributable to MCBC per share $ 0.94 $ 0.97 $ 1.50 $ 1.53 $ 1.30 $ 1.33 $ 2.69 $ 2.73 Diluted net income (loss) attributable to MCBC per share $ 0.93 $ 0.96 $ 1.49 $ 1.52 $ 1.29 $ 1.33 $ 2.68 $ 2.72

New Accounting Pronouncements

New Accounting Pronouncements	6 Months Ended
	Jun. 30, 2018
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	New Accounting Pronouncements New Accounting Pronouncements Recently Adopted Pension and Other Postretirement Benefit Plans In March 2017, the FASB issued authoritative guidance intended to improve the consistency, transparency and usefulness of financial information related to defined benefit pension or other postretirement plans. Under the new guidance, an employer must disaggregate the service cost component from the other components of net benefit cost within the statements of operations. Specifically, the new guidance requires us to report only the service cost component in the same line item as other compensation costs arising from services rendered by the pertinent employees during the period; while the other components of net benefit cost are now presented in the unaudited condensed consolidated statements of operations separately from the service cost component and outside of operating income. The amendments in this update also allow only the service cost component to be eligible for capitalization when applicable. We have also determined that only service cost will be reported within each operating segment and all other components will be reported within the Corporate segment. The guidance related to the income statement presentation of service costs and other pension and postretirement benefit costs is applied retrospectively, while the capitalization of service costs component is applied prospectively. We adopted this guidance as of January 1, 2018 , which was a classification adjustment only and had no impact to our consolidated net income. The adoption of this guidance resulted in the following retrospective adjustments within our unaudited condensed consolidated results of operations: Three Months Ended June 30, 2017 As Adjusted - Pension Methodology (1) As Adjusted - Accounting Standard Update (In millions) Unaudited Condensed Consolidated Statement of Operations: Cost of goods sold $ (1,750.7 ) $ (1,755.5 ) Marketing, general and administrative expenses $ (777.8 ) $ (782.4 ) Operating income (loss) $ 546.3 $ 536.9 Other pension and postretirement benefits (costs), net $ — $ 9.4 Six Months Ended June 30, 2017 As Adjusted - Pension Methodology (1) As Adjusted - Accounting Standard Update (In millions) Unaudited Condensed Consolidated Statement of Operations: Cost of goods sold $ (3,118.4 ) $ (3,127.8 ) Marketing, general and administrative expenses $ (1,477.3 ) $ (1,487.7 ) Special items, net $ (20.3 ) $ (23.2 ) Operating income (loss) $ 924.0 $ 901.3 Other pension and postretirement benefits (costs), net $ — $ 22.7 (1) As discussed in detail within Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" , our historical unaudited condensed consolidated financial statements have been revised to reflect the retrospective application of our change in accounting policy for calculating the market-related value of pension plan assets used to determine net periodic pension cost. The change was effective in the fourth quarter of 2017. The following table shows the (increase) decrease for the respective line item within the unaudited condensed consolidated statement of operations for segment reporting for the three months ended June 30, 2017 : Corporate Europe U.S. Canada Cost of goods sold $ — $ (6.7 ) $ 1.8 $ 0.1 Marketing, general and administrative expenses — (4.6 ) — — Other pension and postretirement benefits (costs), net 9.4 — — — Total $ 9.4 $ (11.3 ) $ 1.8 $ 0.1 The following table shows the (increase) decrease for the respective line item within the unaudited condensed consolidated statement of operations for segment reporting for the six months ended June 30, 2017 : Corporate Europe U.S. Canada Cost of goods sold $ — $ (13.3 ) $ 3.6 $ 0.3 Marketing, general and administrative expenses — (9.3 ) (0.8 ) (0.3 ) Special items, net — — — (2.9 ) Other pension and postretirement benefits (costs), net 22.7 — — — Total $ 22.7 $ (22.6 ) $ 2.8 $ (2.9 ) Revenue Recognition In May 2014, the FASB issued authoritative guidance related to new accounting requirements for the recognition of revenue from contracts with customers. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for the goods or services. We adopted this guidance and related amendments as of January 1, 2018 , applying the modified retrospective transition approach to all contracts. Based on our comprehensive assessment of the new guidance, including our evaluation of the five-step approach outlined within the guidance, we concluded that the adoption did not have a significant impact to our core revenue generating activities. However, the adoption resulted in a change in presentation of certain cash payments made to customers as well as the timing of recognition of certain promotional discounts. Specifically, certain cash payments to customers were previously recorded within marketing, general and administrative expenses in the unaudited condensed consolidated statements of operations. Upon the adoption of the new guidance, many of these cash payments did not meet the specific criteria within the new guidance of providing a “distinct” good or service, and therefore, were required to be presented as a reduction of revenue. Based on foreign exchange rates as of June 30, 2018 , we currently anticipate that the impact of this change will result in a reduction of both revenue and marketing, general and administrative expenses by approximately $60 million to $70 million during 2018 , primarily within our Canada segment, with no impact to full year net income. However, actual results may differ from these estimates. Furthermore, upon adoption of the new guidance, certain of our promotional discounts which are deemed variable consideration under the new guidance, are now recognized at the time of the related shipment of product, which is earlier than recognized under historical guidance. We anticipate that this change in recognition timing will shift financial statement recognition primarily amongst quarters, however, do not anticipate that the full-year impact will be significant to our financial results. We also evaluated the requirements of the new guidance on our other revenue generating activities such as contract brewing and license arrangements, and concluded that no changes to our historical accounting treatment was required. As a result of the cumulative impact of adopting the new guidance, we recorded a reduction to opening retained earnings of $27.8 million as of January 1, 2018 , with an offsetting increase primarily within accounts payable and other current liabilities and the related tax effects, related primarily to the accelerated recognition of certain promotional discounts. Results for reporting periods beginning after January 1, 2018 , are presented under the new guidance, while prior period amounts have not been adjusted and continue to be reported in accordance with historical accounting guidance. The following tables provide a comparison of our current period results of operations and financial position under the new guidance, versus our financial statements if the historical guidance had continued to be applied: Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Under Historical Guidance As Reported Under New Guidance Effect of Change Under Historical Guidance As Reported Under New Guidance Effect of Change (In millions, except per share data) Unaudited Condensed Consolidated Statement of Operations: Sales $ 3,845.2 $ 3,820.5 $ (24.7 ) $ 6,729.3 $ 6,688.5 $ (40.8 ) Excise taxes (735.3 ) (735.3 ) — (1,271.8 ) (1,271.8 ) — Net sales 3,109.9 3,085.2 (24.7 ) 5,457.5 5,416.7 (40.8 ) Cost of goods sold (1,739.1 ) (1,739.1 ) — (3,274.8 ) (3,274.8 ) — Gross profit 1,370.8 1,346.1 (24.7 ) 2,182.7 2,141.9 (40.8 ) Marketing, general and administrative expenses (757.7 ) (744.7 ) 13.0 (1,451.9 ) (1,425.8 ) 26.1 Special items, net (10.5 ) (10.5 ) — 304.3 304.3 — Operating income (loss) 602.6 590.9 (11.7 ) 1,035.1 1,020.4 (14.7 ) Interest income (expense), net (75.8 ) (76.7 ) (0.9 ) (158.2 ) (159.9 ) (1.7 ) Other pension and postretirement benefits (costs), net 9.9 9.9 — 19.9 19.9 — Other income (expense), net (1.1 ) (1.1 ) — — — — Income (loss) before income taxes 535.6 523.0 (12.6 ) 896.8 880.4 (16.4 ) Income tax benefit (expense) (94.4 ) (92.2 ) 2.2 (170.1 ) (167.1 ) 3.0 Net income (loss) 441.2 430.8 (10.4 ) 726.7 713.3 (13.4 ) Net (income) loss attributable to noncontrolling interests (6.7 ) (6.7 ) — (11.1 ) (11.1 ) — Net income (loss) attributable to MCBC $ 434.5 $ 424.1 $ (10.4 ) $ 715.6 $ 702.2 $ (13.4 ) Basic net income (loss) attributable to MCBC per share $ 2.01 $ 1.96 $ (0.05 ) $ 3.31 $ 3.25 $ (0.06 ) Diluted net income (loss) attributable to MCBC per share $ 2.01 $ 1.96 $ (0.05 ) $ 3.30 $ 3.24 $ (0.06 ) As of June 30, 2018 Under Historical Guidance As Reported Under New Guidance Effect of Change (In millions) Unaudited Condensed Consolidated Balance Sheet: Assets Accounts receivable, net $ 984.7 $ 984.9 $ 0.2 Other current assets, net $ 336.8 $ 341.1 $ 4.3 Liabilities and equity Accounts payable and other current liabilities $ 2,913.5 $ 2,971.0 $ 57.5 Deferred tax liabilities $ 1,783.0 $ 1,771.0 $ (12.0 ) Retained earnings $ 7,744.7 $ 7,703.5 $ (41.2 ) AOCI $ (1,025.6 ) $ (1,025.4 ) $ 0.2 These changes are primarily driven by the reclassification of certain cash payments to customers from marketing, general and administrative expenses to a reduction of revenue, as well as the change in the timing of recognition of certain promotional discounts and cash payments to customers. This adoption had no impact to our cash flows from operating, investing or financing activities. See Note 1, "Basis of Presentation and Summary of Significant Accounting Policies" for further details on our significant accounting policies for revenue recognition pursuant to the new guidance. Financial and Commodity Risks In August 2017, the FASB issued authoritative guidance intended to refine and expand hedge accounting for both financial and commodity risks. The revised guidance will create more transparency around how economic results are presented, both on the face of the financial statements and in the footnotes. In addition, this guidance makes certain targeted improvements to simplify the application of hedge accounting guidance. This guidance is effective for annual periods beginning after December 15, 2018 , including interim periods within those annual periods, with early adoption permitted. We have elected to early adopt this guidance during the second quarter of 2018. All transition requirements have been applied to hedging relationships existing on the date of adoption and the effect of the adoption is reflected as of January 1, 2018 . The adoption of this guidance did not result in a cumulative adjustment to the opening balance of retained earnings as of January 1, 2018 , and did not have any other material effect on our results of operations, financial position or cash flows. All required disclosures under the new guidance have been made in Note 12, "Derivative Instruments and Hedging Activities" . New Accounting Pronouncements Not Yet Adopted In February 2018, the FASB issued authoritative guidance intended to improve the usefulness of financial information related to the enactment of the 2017 U.S. Tax Cuts and Jobs Act (the " 2017 Tax Act"). This guidance provides an option to reclassify from accumulated other comprehensive income to retained earnings the stranded tax effects resulting from the change in the U.S. federal corporate income tax rate as a result of the 2017 Tax Act. This guidance is effective for annual periods beginning after December 15, 2018 , including interim periods within those annual periods, with early adoption permitted. We are currently evaluating the potential impact on our financial statements in order to determine whether to elect to make this reclassification upon adoption of this guidance. In February 2016, the FASB issued authoritative guidance intended to increase transparency and comparability among organizations by recognizing lease assets and liabilities on the balance sheet and disclosing key information about leasing arrangements. Under the new guidance, lessees will be required to recognize a right-of-use asset and a lease liability, measured on a discounted basis, at the commencement date for all leases with terms greater than twelve months. Additionally, this guidance will require disclosures to help investors and other financial statement users to better understand the amount, timing, and uncertainty of cash flows arising from leases, including qualitative and quantitative requirements. This guidance is effective for annual reporting periods beginning after December 15, 2018, including interim periods within those annual periods, with early adoption permitted. The guidance should be applied under a modified retrospective transition approach, with an option to apply the guidance either at the beginning of the earliest comparative period presented in the adoption-period financial statements, or to apply the new guidance at the adoption date. We currently anticipate that we will apply the guidance at the beginning of the period of adoption; however, this expectation may change following the completion of our evaluation of the impact of this guidance on our financial statements. We are currently evaluating the potential impact on our financial position and results of operations upon adoption of this guidance. This guidance will result in our existing operating leases, for certain real estate and equipment, to be recognized on our balance sheet. We will further analyze our lease arrangements as we complete our assessment and implementation of this new guidance. Other than the items noted above, there have been no new accounting pronouncements not yet effective or adopted in the current year that we believe have a significant impact, or potential significant impact, to our unaudited condensed consolidated interim financial statements.

Segment Reporting

Segment Reporting	6 Months Ended
	Jun. 30, 2018
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 the U.S., Canada, Europe and International. Corporate is not a segment and primarily includes interest and certain other general and administrative costs that are not allocated to any of the operating segments as well as the unrealized changes in fair value on our commodity swaps not designated in hedging relationships recorded within cost of goods sold, which are later reclassified when realized to the segment in which the underlying exposure resides. Additionally, only the service cost component of net periodic pension and OPEB cost are now reported within each operating segment, as discussed in Note 2, "New Accounting Pronouncements" , and all other components are reported, retrospectively and prospectively, within the Corporate segment in accordance with how our chief operating decision maker evaluates the performance of our business. No single customer accounted for more than 10% of our consolidated sales for the three and six months ended June 30, 2018 , or June 30, 2017 . Consolidated net sales represent sales to third-party external customers less excise taxes. Inter-segment transactions impacting net sales revenues and income (loss) before income taxes eliminate in consolidation and are primarily related to U.S. segment sales to the other segments. The following tables present net sales, income (loss) before income taxes and total assets by segment: Three Months Ended Six Months Ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 (In millions) U.S. $ 2,072.5 $ 2,138.9 $ 3,720.3 $ 3,888.8 Canada 397.4 407.6 681.2 698.7 Europe 586.1 524.7 960.4 906.3 International 67.9 65.1 125.4 126.9 Corporate 0.3 0.3 0.5 0.6 Inter-segment net sales eliminations (39.0 ) (45.3 ) (71.1 ) (81.3 ) Consolidated net sales $ 3,085.2 $ 3,091.3 $ 5,416.7 $ 5,540.0 Three Months Ended Six Months Ended June 30, 2018 June 30, 2017 (1) June 30, 2018 June 30, 2017 (1) (In millions) U.S. $ 445.5 $ 486.5 $ 707.2 $ 803.1 Canada (2) 61.3 69.7 70.4 90.6 Europe (3) 86.8 69.9 56.9 96.9 International 1.3 (7.7 ) 5.0 (6.2 ) Corporate (4) (71.9 ) (158.2 ) 40.9 (243.3 ) Consolidated income (loss) before income taxes $ 523.0 $ 460.2 $ 880.4 $ 741.1 (1) Segment results for the three and six months ended June 30, 2017 , have been adjusted to reflect the adoption of the new accounting pronouncement for pension and other postretirement benefit costs as well as the reclassification of all non-service cost components of pension and other postretirement costs to Corporate. See Note 2, "New Accounting Pronouncements" for further details. (2) During the first quarter of 2017, we received payment and recorded a gain of CAD 10.6 million , or $8.1 million , resulting from a purchase price adjustment related to the historical sale of Molson Inc.’s ownership interest in the Montreal Canadiens, which is considered an affiliate of MCBC. (3) During the three months ended March 31, 2017, we recorded a provision for an estimate of uncollectible receivables of approximately $11 million related to Agrokor, a large customer in Croatia. We have subsequently reduced this exposure and as of June 30, 2018, our estimated provision of uncollectible receivables from Agrokor totals approximately $4 million . The settlement plan related to this matter was announced in July 2018. We are currently evaluating the implications of the settlement plan, and do not expect it to have a significant impact on our financial statements upon finalization. Separately, during the first quarter of 2017, we released an indirect tax loss contingency, which was initially recorded in the fourth quarter of 2016, for a benefit of approximately $50 million . See Note 14, "Commitments and Contingencies" for details. (4) During the three months ended March 31, 2018, we recorded a gain of $328.0 million related to the Adjustment Amount as defined and further discussed in Note 6, "Special Items" . Additionally, related to the unrealized mark-to-market valuation on our commodity hedge positions, we recorded an unrealized gain of $45.1 million and an unrealized loss of $ 39.6 million during the three and six months ended June 30, 2018, respectively, compared to an unrealized loss of $23.4 million and an unrealized gain of $ 39.7 million during the three and six months ended June 30, 2017, respectively. Income (loss) before income taxes includes the impact of special items. Refer to Note 6, "Special Items" for further discussion. As of June 30, 2018 December 31, 2017 (In millions) U.S. $ 19,318.7 $ 19,353.6 Canada 4,731.5 4,835.7 Europe 5,619.5 5,522.0 International 279.4 294.8 Corporate 611.8 240.8 Consolidated total assets $ 30,560.9 $ 30,246.9

Investments

Investments	6 Months Ended
	Jun. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]
Investments	Investments Our investments include both equity method and consolidated investments. Those entities identified as 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 June 30, 2018 , or December 31, 2017 . We have not provided any financial support to any of our VIEs during the year 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 June 30, 2018 , and December 31, 2017 , our consolidated VIEs were Cobra Beer Partnership, Ltd. ("Cobra U.K."), Grolsch U.K. Ltd. ("Grolsch"), Rocky Mountain Metal Container ("RMMC") and Rocky Mountain Bottle Company ("RMBC"). Our unconsolidated VIEs are Brewers Retail Inc. ("BRI") and Brewers' Distributor Ltd. ("BDL"). Both BRI and BDL have outstanding third party debt which is guaranteed by their respective shareholders. As a result, we have a guarantee liability of $55.4 million and $38.1 million recorded as of June 30, 2018 , and December 31, 2017 , respectively, which is presented within accounts payable and other current liabilities on the unaudited condensed consolidated balance sheets and represents our proportionate share of the outstanding balance of these debt instruments. The carrying value of the guarantee liability equals fair value, which considers an adjustment for our own non-performance risk and is considered a Level 2 measurement. The offset to the guarantee liability was recorded as an adjustment to our respective equity method investment within the unaudited condensed consolidated balance sheets. The resulting change in our equity method investments during the year due to movements in the guarantee represents a non-cash investing activity. Consolidated VIEs The following summarizes the assets and liabilities of our consolidated VIEs (including noncontrolling interests): As of June 30, 2018 December 31, 2017 Total Assets Total Liabilities Total Assets Total Liabilities (In millions) Grolsch $ 4.7 $ 0.3 $ 4.8 $ 0.2 Cobra U.K. $ 17.1 $ 0.8 $ 20.2 $ 2.1 RMMC $ 78.2 $ 5.0 $ 74.4 $ 4.4 RMBC $ 71.3 $ 4.2 $ 56.2 $ 4.6

Share-Based Payments

Share-Based Payments	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Payments	Share-Based Payments We have one share-based compensation plan, the MCBC Incentive Compensation Plan (the "Incentive Compensation Plan"), as of June 30, 2018 , and all outstanding awards fall under this plan. During the three and six months ended June 30, 2018 , and June 30, 2017 , 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 Incentive Compensation Plan: RSUs, DSUs, PSUs and stock options. Three Months Ended Six Months Ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 (In millions) Pretax compensation expense $ 10.3 $ 16.1 $ 25.1 $ 31.6 Tax benefit (2.1 ) (5.5 ) (3.7 ) (10.8 ) After-tax compensation expense $ 8.2 $ 10.6 $ 21.4 $ 20.8 As of June 30, 2018 , there was $73.3 million of total unrecognized compensation expense from all share-based compensation arrangements granted under the Incentive Compensation Plan, related to unvested awards. This total compensation expense is expected to be recognized over a weighted-average period of 2.1 years. RSUs and DSUs PSUs Units Weighted-average grant date fair value per unit Units Weighted-average grant date fair value per unit (In millions, except per unit amounts) Non-vested as of December 31, 2017 1.0 $95.80 0.4 $89.57 Granted 0.4 $73.00 0.2 $78.30 Vested (0.3 ) $90.30 (0.1 ) $75.15 Forfeited — $— — $— Non-vested as of June 30, 2018 1.1 $89.16 0.5 $86.91 The weighted-average fair value per unit for the non-vested PSUs is $86.31 as of June 30, 2018 . Stock options and SOSARs Awards Weighted-average exercise price per share Weighted-average remaining contractual life (years) Aggregate intrinsic value (In millions, except per share amounts and years) Outstanding as of December 31, 2017 1.5 $63.60 4.6 $ 31.3 Granted 0.2 $78.79 Exercised (0.2) $50.28 Forfeited — $— Outstanding as of June 30, 2018 1.5 $67.04 4.9 $ 14.2 Expected to vest as of June 30, 2018 0.3 $85.32 8.8 $ — Exercisable as of June 30, 2018 1.2 $61.35 3.7 $ 14.2 The total intrinsic values of stock options and SOSARs exercised during the six months ended June 30, 2018 , and June 30, 2017 , were $5.1 million and $5.3 million , respectively. During the six months ended June 30, 2018 , and June 30, 2017 , cash received from stock option exercises was $6.3 million and $1.1 million , respectively, and total tax benefits realized, including excess tax benefits, from share-based awards vested or exercised was $5.9 million and $19.2 million , respectively. The fair value of each option granted in the first half of 2018 and 2017 was determined on the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions: Six Months Ended June 30, 2018 June 30, 2017 Risk-free interest rate 2.65% 2.04% Dividend yield 2.08% 1.64% Volatility range 22.36%-24.14% 22.40%-22.88% Weighted-average volatility 22.81% 22.52% Expected term (years) 5.3 5.1 Weighted-average fair market value $15.44 $18.66 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 half of 2018 and 2017 was determined on the date of grant using a Monte Carlo model to simulate total stockholder return for MCBC and peer companies with the following weighted-average assumptions: Six Months Ended June 30, 2018 June 30, 2017 Risk-free interest rate 2.34% 1.59% Dividend yield 2.08% 1.64% Volatility range 13.03%-81.87% 13.71%-80.59% Weighted-average volatility 22.76% 24.24% Expected term (years) 2.8 2.8 Weighted-average fair market value $78.30 $97.13 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 June 30, 2018 , there were 3.4 million shares of the Company's Class B common stock available for issuance as awards under the Incentive Compensation Plan.

Special Items

Special Items	6 Months Ended
	Jun. 30, 2018
Unusual or Infrequent Items, or Both [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. Three Months Ended Six Months Ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 (In millions) Employee-related charges Restructuring $ 1.0 $ 0.4 $ 4.9 $ 1.3 Impairments or asset abandonment charges U.S. - Asset abandonment (1) 1.3 12.4 2.8 14.4 Canada - Asset abandonment (2) 6.0 1.1 12.1 2.3 Europe - Asset abandonment (3) 1.0 2.6 2.7 5.2 Termination fees and other (gains) losses International (4) 1.2 — 1.2 — Acquisition purchase price adjustment settlement gain (5) — — (328.0 ) — Total Special items, net $ 10.5 $ 16.5 $ (304.3 ) $ 23.2 (1) Charges for the three and six months ended June 30, 2018 , relate to the planned closure of the Colfax, California cidery, and consist primarily of accelerated depreciation in excess of normal depreciation. Charges for the three and six months ended June 30, 2017 , relate to the closure of the Eden, North Carolina, brewery. (2) For the three and six months ended June 30, 2018 , we incurred charges consisting primarily of accelerated depreciation in excess of normal depreciation related to the planned closures of the Vancouver and Montreal breweries, which are currently expected to occur in 2019 and 2021, respectively. Charges for the three and six months ended June 30, 2017 , relate primarily to accelerated depreciation in excess of normal depreciation related to the above mentioned planned closure of the Vancouver brewery. (3) For the three and six months ended June 30, 2018 , we incurred charges primarily related to the closure of the Burton South brewery, which closed during the first quarter of 2018. For the three and six months ended June 30, 2017 , we incurred charges consisting primarily of accelerated depreciation in excess of normal depreciation related to the Burton South brewery closure. (4) For the three and six months ended June 30, 2018 , we incurred charges related to the exit of our China business. (5) On October 11, 2016 , we completed the Acquisition for $12.0 billion in cash, subject to a downward adjustment as described in the purchase agreement. This purchase price "Adjustment Amount," as defined in the purchase agreement, required payment to MCBC if the unaudited EBITDA for the Miller International Business for the twelve months prior to closing was below $70 million . Throughout the process outlined in the purchase agreement, significant uncertainty remained on the ultimate outcome of the Adjustment Amount. As a result, no adjustment to purchase accounting was made through the completion of the measurement period in October 2017. Subsequently, on January 21, 2018, MCBC and ABI entered into a settlement agreement related to the purchase price adjustment under the purchase agreement, and on January 26, 2018, pursuant to the settlement agreement, ABI paid to MCBC $330.0 million , of which $328.0 million constitutes the Adjustment Amount. As this settlement occurred following the finalization of purchase accounting, we recorded the settlement proceeds related to the Adjustment Amount as a gain within special items, net in our unaudited condensed consolidated statement of operations in our Corporate segment and within cash provided by operating activities within our unaudited condensed consolidated statement of cash flows for the six months ended June 30, 2018 . MCBC and ABI also agreed to certain mutual releases as further described in the settlement agreement which was filed as an exhibit to a Current Report on Form 8-K filed January 22, 2018. Restructuring Activities Beginning in 2016, restructuring initiatives related to the integration of MillerCoors after the completion of the Acquisition were implemented in order to operate a more efficient business and achieve cost saving targets which to-date resulted in reduced employment levels by approximately 106 employees. Total restructuring costs related to integration initiatives represent the majority of the charges within the table below by segment. Severance costs related to these restructuring activities were recorded as special items within our unaudited condensed consolidated statements of operations. As we continually evaluate our cost structure and seek opportunities for further efficiencies and cost savings as part of these initiatives, we may incur additional restructuring related charges in the future, however, we are unable to estimate the amount of charges at this time. We have continued our ongoing assessment of our supply chain strategies across our segments in order to align with our cost saving objectives. As part of this strategic review, which began in 2014, we have had restructuring activities related to the closure or planned closure of breweries, as well as activities related to business efficiencies. As a result, we have reduced employment levels by a total of 450 employees. Consequently, we recognized severance and other employee-related charges, which we have recorded as special items within our unaudited condensed consolidated statements of operations. We will continue to evaluate our supply chain network and seek opportunities for further efficiencies and cost savings, and we therefore may incur additional restructuring related charges or adjustments to previously recorded 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 months. U.S. Canada Europe International Corporate Total (In millions) As of December 31, 2017 $ 0.6 $ 4.3 $ 1.8 $ 0.2 $ — $ 6.9 Charges incurred and changes in estimates 2.0 (0.8 ) 2.1 1.6 — 4.9 Payments made (0.6 ) (1.5 ) (2.3 ) (0.2 ) — (4.6 ) Foreign currency and other adjustments — (0.1 ) — — — (0.1 ) As of June 30, 2018 $ 2.0 $ 1.9 $ 1.6 $ 1.6 $ — $ 7.1 U.S. Canada Europe International Corporate Total (In millions) As of December 31, 2016 $ 5.1 $ 5.9 $ 2.8 $ 0.2 $ 0.7 $ 14.7 Charges incurred and changes in estimates 0.7 (0.1 ) — 0.6 0.1 1.3 Payments made (4.6 ) (0.8 ) (0.5 ) (0.2 ) (0.6 ) (6.7 ) Foreign currency and other adjustments — 0.1 0.1 — — 0.2 As of June 30, 2017 $ 1.2 $ 5.1 $ 2.4 $ 0.6 $ 0.2 $ 9.5

Income Tax

Income Tax	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Tax	Income Tax Three Months Ended Six Months Ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 Effective tax rate 18 % 27 % 19 % 26 % The decrease in the effective tax rate during the second quarter and first half of 2018 versus 2017 , is primarily driven by the reduction of the statutory U.S. federal corporate income tax rate from 35% to 21% as a result of the 2017 Tax Act. Our effective tax rates were also affected by the impact of discrete items. Specifically, we recognized a net discrete tax benefit of $1.2 million during the second quarter of 2018 , and net discrete tax expense of $4.3 million during the first half of 2018. During the second quarter and first half of 2017, we recognized a net discrete tax benefit of $1.3 million and $9.7 million , respectively. Our tax rate is volatile and may increase or decrease with changes in, among other things, the amount and source of income or loss, our ability to utilize foreign tax credits, excess tax benefits or deficiencies from share-based compensation, changes in tax laws, and the movement of liabilities established pursuant to accounting guidance for uncertain tax positions as statutes of limitations expire, positions are effectively settled, or when additional information becomes available. There are proposed or pending tax law changes in various jurisdictions and other changes to regulatory environments in countries in which we do business that, if enacted, may have an impact on our effective tax rate. Additionally, we continue to evaluate the impacts of the 2017 Tax Act. As we further understand its implications, as well as the related, and yet to be issued, regulations and interpretations, our effective tax rate could be impacted. For example, subsequent to the enactment, the FASB staff concluded that companies should make an accounting policy election to account for the tax effects of the global intangible low-taxed income (“GILTI”) either as a component of income tax expense in the future period the tax arises, or as a component of deferred taxes on the related investments in foreign subsidiaries. We are currently evaluating the GILTI provisions of the 2017 Tax Act and the related implications and have not finalized our accounting policy election, however, have preliminarily concluded that we will record as a periodic expense as incurred, and therefore, have not recorded deferred taxes for GILTI. We will continue to evaluate in future periods and will finalize our accounting policy election at that time. We did not make any material adjustments to the amounts recorded as of December 31, 2017 , as a result of the 2017 Tax Act, however, we continue to consider these amounts provisional for the reasons discussed above. Additional impacts from the 2017 Tax Act will be recorded as they are identified during the measurement period pursuant to SEC Staff Accounting Bulletin No. 118 ("SAB 118"). Our determination of the tax effects of the 2017 Tax Act will be completed no later than one year from the enactment date as permitted under SAB 118. Any adjustments to provisional amounts that are identified during the measurement period will be recorded and disclosed in the reporting period in which the adjustment is determined. The complexity of the 2017 Tax Act could necessitate the need to use the full one year measurement period to adequately interpret, analyze and conclude upon the tax effects of the 2017 Tax Act as of the enactment date.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets U.S. Canada Europe International Consolidated Changes in Goodwill: (In millions) As of December 31, 2017 $ 5,928.5 $ 932.1 $ 1,538.0 $ 6.9 $ 8,405.5 Business acquisition (1) — — 9.8 — 9.8 Adjustments to preliminary purchase price allocation (2) — (2.9 ) — — (2.9 ) Foreign currency translation — (39.7 ) (39.6 ) (0.5 ) (79.8 ) As of June 30, 2018 $ 5,928.5 $ 889.5 $ 1,508.2 $ 6.4 $ 8,332.6 (1) During the first quarter of 2018, we completed the acquisition of Aspall Cyder Limited, an established premium cider business in the U.K. As part of the preliminary purchase price accounting in the first quarter of 2018, goodwill generated in conjunction with this acquisition has been recorded within our Europe segment, subject to normal purchase accounting adjustments. (2) During the second quarter of 2018, we recorded adjustments to the preliminary purchase price allocation related to our acquisition of Le Trou du Diable, which was completed in the fourth quarter of 2017. The following table presents details of our intangible assets, other than goodwill, as of June 30, 2018 : Useful life Gross Accumulated amortization Net (Years) (In millions) Intangible assets subject to amortization: Brands 10 - 50 $ 5,089.2 $ (595.1 ) $ 4,494.1 License agreements and distribution rights 15 - 28 222.8 (95.0 ) 127.8 Other 2 - 40 132.5 (28.8 ) 103.7 Intangible assets not subject to amortization: Brands Indefinite 8,184.9 — 8,184.9 Distribution networks Indefinite 770.3 — 770.3 Other Indefinite 337.6 — 337.6 Total $ 14,737.3 $ (718.9 ) $ 14,018.4 The following table presents details of our intangible assets, other than goodwill, as of December 31, 2017 : Useful life Gross Accumulated amortization Net (Years) (In millions) Intangible assets subject to amortization: Brands 10 - 50 $ 5,215.3 $ (516.0 ) $ 4,699.3 License agreements and distribution rights 15 - 28 236.3 (103.9 ) 132.4 Other 2 - 40 148.3 (42.4 ) 105.9 Intangible assets not subject to amortization: Brands Indefinite 8,216.6 — 8,216.6 Distribution networks Indefinite 804.7 — 804.7 Other Indefinite 337.6 — 337.6 Total $ 14,958.8 $ (662.3 ) $ 14,296.5 The changes in the gross carrying amounts of intangibles from December 31, 2017 , to June 30, 2018 , are primarily driven by the impact of foreign exchange rates, as a significant amount of intangibles are denominated in foreign currencies. Based on foreign exchange rates as of June 30, 2018 , the estimated future amortization expense of intangible assets is as follows: Fiscal year Amount (In millions) 2018 - remaining $ 111.5 2019 $ 222.8 2020 $ 221.8 2021 $ 215.5 2022 $ 210.9 Amortization expense of intangible assets was $56.2 million and $55.1 million for the three months ended June 30, 2018 , and June 30, 2017 , respectively, and $112.8 million and $110.3 million for the six months ended June 30, 2018 , and June 30, 2017 , respectively. This expense is primarily presented within marketing, general and administrative expenses on the unaudited condensed consolidated statements of operations. Annual Goodwill Impairment Testing We completed our required annual goodwill and indefinite-lived intangible impairment testing as of October 1, 2017, the first day of our fourth quarter, and concluded there were no impairments of goodwill within our reporting units or our indefinite-lived intangible assets. Key Assumptions Fair value determinations require considerable judgment and are sensitive to changes in underlying assumptions and factors. The key assumptions used to derive the estimated fair values of our reporting units and indefinite-lived intangibles are discussed in Part II—Item 8 Financial Statements, Note 11, "Goodwill and Intangible Assets" in our Annual Report. Based on known facts and circumstances, we evaluate and consider recent events and uncertain items, as well as related potential implications, as part of our annual assessment and incorporate into the analyses as appropriate. These facts and circumstances are subject to change and may impact future analyses. For example, subsequent to the completion of our annual impairment testing, we considered the implications of the enactment of the 2017 Tax Act on our U.S. reporting unit and indefinite-lived brand valuations. The results of our preliminary analysis indicated that the implications are expected to be favorable, keeping all other assumptions constant. While historical performance and current expectations have resulted in fair values of our reporting units and indefinite-lived intangible assets in excess of carrying values, if our assumptions are not realized, it is possible that an impairment charge may need to be recorded in the future. Indefinite and Definite-Lived Intangibles Regarding indefinite and definite-lived intangibles, we continuously monitor the performance of the underlying assets for potential triggering events suggesting an impairment review should be performed. No such triggering events were identified in the first half of 2018 that resulted in an impairment.

Debt

Debt	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Debt	Debt Debt obligations As of June 30, 2018 December 31, 2017 (In millions) Long-term debt: CAD 400 million 2.25% notes due 2018 $ 304.6 $ 318.2 CAD 500 million 2.75% notes due 2020 380.7 397.7 CAD 500 million 2.84% notes due 2023 380.7 397.7 CAD 500 million 3.44% notes due 2026 380.7 397.7 $500 million 1.45% notes due 2019 500.0 500.0 $500 million 1.90% notes due 2019 (1) 499.1 498.5 $500 million 2.25% notes due 2020 (1)(2) 498.6 498.2 $1.0 billion 2.10% notes due 2021 1,000.0 1,000.0 $500 million 3.5% notes due 2022 (1) 510.7 512.2 $2.0 billion 3.0% notes due 2026 2,000.0 2,000.0 $1.1 billion 5.0% notes due 2042 1,100.0 1,100.0 $1.8 billion 4.2% notes due 2046 1,800.0 1,800.0 EUR 500 million notes due 2019 584.2 600.3 EUR 800 million 1.25% notes due 2024 934.7 960.4 Other long-term debt 48.7 22.1 Less: unamortized debt discounts and debt issuance costs (70.0 ) (75.9 ) Total long-term debt (including current portion) 10,852.7 10,927.1 Less: current portion of long-term debt (1,397.6 ) (328.4 ) Total long-term debt $ 9,455.1 $ 10,598.7 Short-term borrowings: Commercial paper program $ — $ 379.0 Other short-term borrowings (3) 13.4 7.4 Current portion of long-term debt 1,397.6 328.4 Current portion of long-term debt and short-term borrowings $ 1,411.0 $ 714.8 (1) The fair value hedges related to these notes have been settled and are being amortized over the life of the respective note. (2) During the second quarter, we entered into cross currency swaps in order to hedge a portion of the foreign currency translational impacts of our European investment. As a result of the swaps, we economically converted our $500 million 2.25% senior notes due 2020 and associated interest to EUR denominated, which will result in a EUR interest rate to be received at 0.85% . See Note 12, "Derivative Instruments and Hedging Activities" for further details. (3) As of June 30, 2018 , we had $6.9 million in bank overdrafts and $71.6 million in bank cash related to our cross-border, cross-currency cash pool, for a net positive position of $64.7 million . As of December 31, 2017 , we had $1.2 million in bank overdrafts and $37.8 million in bank cash related to our cross-border, cross-currency cash pool for a net positive position of $36.6 million . We had total outstanding borrowings of $5.4 million and $3.2 million under our two JPY overdraft facilities as of June 30, 2018 , and December 31, 2017 , respectively. In addition, we have GBP and CAD lines of credit under which we had no borrowings as of June 30, 2018 , or December 31, 2017 . 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 June 30, 2018 , and December 31, 2017 , the fair value of our outstanding long-term debt (including the current portion of long-term debt) was approximately $10.5 billion and $11.2 billion , respectively. All senior notes are valued based on significant observable inputs and 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 and are also classified as Level 2 in the fair value hierarchy. Revolving Credit Facility As of June 30, 2018 , we had $1.5 billion available to draw under our $1.5 billion revolving multi-currency credit facility. The borrowing capacity is reduced by borrowings under our commercial paper program when outstanding. We had no borrowings drawn on this revolving credit facility as of June 30, 2018 . The maximum leverage ratio of this facility is 5.25x debt to EBITDA, with a decline to 4.00x debt to EBITDA as of the last day of the fiscal quarter ending December 31, 2020. Subsequent to quarter end, we extended the maturity date of our revolving credit facility by one year to July 7, 2023. Under the terms of each of our debt facilities, we must comply with certain restrictions. These include customary events of default and specified representations and warranties and covenants, including, among other things, covenants that restrict our ability to incur certain additional priority indebtedness, create or permit liens on assets, or engage in mergers or consolidations. As of June 30, 2018 , we were in compliance with all of these restrictions and have met all debt payment obligations. All of our outstanding senior notes as of June 30, 2018 , rank pari-passu.

Inventories Inventories

Inventories Inventories	6 Months Ended
	Jun. 30, 2018
Inventory Disclosure [Abstract]
Inventories	Inventories As of June 30, 2018 December 31, 2017 (In millions) Finished goods $ 284.5 $ 222.3 Work in process 87.6 85.2 Raw materials 196.9 231.7 Packaging materials 68.5 52.3 Inventories, net $ 637.5 $ 591.5

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss) ("AOCI") Accumulated Other Comprehensive Income (Loss) ("AOCI")	6 Months Ended
	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Accumulated Other Comprehensive Income (Loss) (AOCI)	Accumulated Other Comprehensive Income (Loss) MCBC shareholders Foreign currency translation adjustments Gain (loss) on derivative and non-derivative instruments Pension and postretirement benefit adjustments Equity method investments Accumulated other comprehensive income (loss) (In millions) As of December 31, 2017 $ (314.6 ) $ (110.9 ) $ (375.0 ) $ (59.5 ) $ (860.0 ) Foreign currency translation adjustments (216.0 ) 69.4 (1.0 ) — (147.6 ) Unrealized gain (loss) on derivative instruments — 14.0 — — 14.0 Reclassification of derivative (gain) loss to income — 2.4 — — 2.4 Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income — — 3.6 — 3.6 Ownership share of unconsolidated subsidiaries' other comprehensive income (loss) — — — (0.7 ) (0.7 ) Tax benefit (expense) (14.8 ) (21.9 ) (0.6 ) 0.2 (37.1 ) As of June 30, 2018 $ (545.4 ) $ (47.0 ) $ (373.0 ) $ (60.0 ) $ (1,025.4 ) Reclassifications from AOCI to income: Three Months Ended Six Months Ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 Reclassifications from AOCI Location of gain (loss) recognized in income (In millions) Gain/(loss) on cash flow hedges: Forward starting interest rate swaps $ (0.7 ) $ (0.9 ) $ (1.5 ) $ (1.9 ) Interest expense, net Foreign currency forwards (0.3 ) 2.8 (0.9 ) 4.7 Cost of goods sold Foreign currency forwards — (1.2 ) — (2.1 ) Other income (expense), net Total income (loss) reclassified, before tax (1.0 ) 0.7 (2.4 ) 0.7 Income tax benefit (expense) 0.3 (0.3 ) 0.6 (0.3 ) Net income (loss) reclassified, net of tax $ (0.7 ) $ 0.4 $ (1.8 ) $ 0.4 Amortization of defined benefit pension and other postretirement benefit plan items: Prior service benefit (cost) $ (0.1 ) $ (0.1 ) $ (0.3 ) $ (0.3 ) Other pension and postretirement benefits (costs), net Curtailment and net actuarial gain (loss) (1.6 ) (3.6 ) (3.3 ) (1.8 ) Other pension and postretirement benefits (costs), net Total income (loss) reclassified, before tax (1.7 ) (3.7 ) (3.6 ) (2.1 ) Income tax benefit (expense) 0.4 (1.0 ) 0.6 (1.6 ) Net income (loss) reclassified, net of tax $ (1.3 ) $ (4.7 ) $ (3.0 ) $ (3.7 ) Total income (loss) reclassified, net of tax $ (2.0 ) $ (4.3 ) $ (4.8 ) $ (3.3 )

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	6 Months Ended
	Jun. 30, 2018
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 half of 2018, with the exception of early adopting the updated hedge accounting guidance during the second quarter of 2018. The adoption of this guidance did not result in a cumulative adjustment to the opening balance of retained earnings as of January 1, 2018, and did not have any other material effect on our results of operations, financial position or cash flows. All required disclosures under the new guidance are presented below on a prospective basis. See further discussion in Note 2, "New Accounting Pronouncements" . 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 on a gross basis in our unaudited condensed consolidated balance sheets. Except as noted below, our significant derivative positions have not changed considerably since year-end. Cross Currency Swaps Effective April 18, 2018, we entered into cross currency swap agreements having a total notional of approximately EUR 404 million ( $500.0 million upon execution) in order to hedge a portion of the foreign currency translational impacts of our European investment. As a result of the swaps, we economically converted our $500 million 2.25% senior notes due 2020 and associated interest to EUR denominated, which will result in a EUR interest rate to be received at 0.85% . We have designated these cross currency swaps as net investment hedges and accordingly, record changes in fair value due to fluctuations in the spot rate to AOCI. The changes in fair value of the swaps attributable to changes other than those due to fluctuations in the spot rate are excluded from the assessment of hedge effectiveness and recorded to interest expense over the life of the hedge. Forward Starting Interest Rate Swaps Forward starting interest rate swaps are instruments we use to manage our exposure to the volatility of the interest rates associated with future interest payments on a forecasted debt issuance. Subsequent to June 30, 2018 , we entered into forward starting interest rate swaps with notional amounts totaling $1.5 billion . The forward starting interest rate swaps have an effective date of July 2018 and termination dates of July 2021, May 2022 and July 2026, mirroring the terms of the forecasted debt issuances. Under the agreements we are required to early terminate these swaps at the time we expect to issue the related forecasted debt. We have designated these contracts as cash flow hedges. As a result, the unrealized mark-to-market gains or losses will be recorded to AOCI until termination at which point the realized gain or loss of these swaps at issuance of the hedged debt will be reclassified from AOCI and amortized to interest expense over the term of the hedged debt. 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, as appropriate. The table below summarizes our derivative assets and liabilities that were measured at fair value as of June 30, 2018 , and December 31, 2017 . Fair value measurements as of June 30, 2018 As of June 30, 2018 Quoted prices in active markets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) (In millions) Cross currency swaps $ 27.6 $ — $ 27.6 $ — Foreign currency forwards 4.1 — 4.1 — Commodity swaps and options 82.7 — 82.7 — Total $ 114.4 $ — $ 114.4 $ — Fair value measurements as of December 31, 2017 As of December 31, 2017 Quoted prices in active markets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) (In millions) Foreign currency forwards $ (10.9 ) $ — $ (10.9 ) $ — Commodity swaps and options 122.8 — 122.8 — Total $ 111.9 $ — $ 111.9 $ — As of June 30, 2018 , we had no significant transfers between Level 1 and Level 2. New derivative contracts transacted during the six months ended June 30, 2018 , 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 June 30, 2018 , and December 31, 2017 , and the unaudited condensed consolidated statements of operations for the three and six months ended June 30, 2018 , and June 30, 2017 . Fair Value of Derivative Instruments in the Unaudited Condensed Consolidated Balance Sheets (in millions): As of June 30, 2018 Derivative Assets Derivative Liabilities Notional amount Balance sheet location Fair value Balance sheet location Fair value Derivatives designated as hedging instruments: Cross currency swaps $ 500.0 Other non-current assets $ 27.6 Other liabilities $ — Foreign currency forwards $ 339.6 Other current assets 2.4 Accounts payable and other current liabilities (0.8 ) Other non-current assets 3.2 Other liabilities (0.7 ) Total derivatives designated as hedging instruments $ 33.2 $ (1.5 ) Derivatives not designated as hedging instruments: Commodity swaps (1) $ 796.0 Other current assets $ 59.0 Accounts payable and other current liabilities $ (7.0 ) Other non-current assets 36.2 Other liabilities (5.5 ) Commodity options (1) $ 30.6 Other current assets 0.2 Accounts payable and other current liabilities (0.2 ) Other non-current assets — Other liabilities — Total derivatives not designated as hedging instruments $ 95.4 $ (12.7 ) As of December 31, 2017 Derivative Assets Derivative Liabilities Notional amount Balance sheet location Fair value Balance sheet location Fair value Derivatives designated as hedging instruments: Foreign currency forwards $ 326.4 Other current assets $ 0.4 Accounts payable and other current liabilities $ (6.1 ) Other non-current assets 0.2 Other liabilities (5.4 ) Total derivatives designated as hedging instruments $ 0.6 $ (11.5 ) Derivatives not designated as hedging instruments: Commodity swaps (1) $ 765.0 Other current assets $ 70.8 Accounts payable and other current liabilities $ (7.3 ) Other non-current assets 63.5 Other liabilities (4.2 ) Commodity options (1) $ 30.6 Other current and non-current assets 0.2 Accounts payable and other current liabilities and other liabilities (0.2 ) Total derivatives not designated as hedging instruments $ 134.5 $ (11.7 ) (1) Notional includes offsetting buy and sell positions, shown in terms of absolute value. Buy and sell positions are shown gross in the asset and/or liability position, as appropriate. Items Designated and Qualifying as Hedged Items in Fair Value Hedging Relationships in the Unaudited Condensed Consolidated Balance Sheets (in millions): Line item in the balance sheet in which the hedged item is included Carrying amount of the hedged assets/liabilities Cumulative amount of fair value hedging adjustment(s) in the hedged assets/liabilities (1) Increase/(Decrease) As of June 30, 2018 As of June 30, 2018 (In millions) Current portion of long-term debt and short-term borrowings $ — $ (0.9 ) Long-term debt $ — $ 9.3 (1) Entire balances relate to hedging adjustments on discontinued hedging relationships. The Pretax Effect of Fair Value and Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income (in millions): Three Months Ended June 30, 2018 Derivatives in cash flow hedge relationships Amount of gain (loss) recognized Location of gain (loss) Amount of gain Forward starting interest rate swaps $ — Interest expense, net $ (0.7 ) Foreign currency forwards 6.5 Cost of goods sold (0.3 ) Total $ 6.5 $ (1.0 ) Three Months Ended June 30, 2018 Derivatives in net investment hedge relationships Amount of gain (loss) recognized in OCI on derivative Location of gain (loss) reclassified from AOCI into income Amount of gain (loss) recognized from AOCI on derivative Location of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) (1) Cross currency swap $ 27.6 Interest income (expense), net $ — Interest income (expense), net $ 2.4 Total $ 27.6 $ — $ 2.4 (1) Represents amounts excluded from the assessment of effectiveness for which the difference between changes in fair value and period amortization is recorded in other comprehensive income. Three Months Ended June 30, 2018 Non-derivative financial instruments in net investment hedge relationships Amount of gain (loss) recognized in OCI on derivative Location of gain (loss) reclassified from AOCI into income Amount of gain (loss) recognized from AOCI on derivative Location of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) EUR 800 million notes due 2024 $ 51.2 Other income (expense), net $ — Other income (expense), net $ — EUR 500 million notes due 2019 32.0 Other income (expense), net — Other income (expense), net — Total $ 83.2 $ — $ — Three Months Ended June 30, 2017 Derivatives in cash flow hedge relationships Amount of gain (loss) recognized in OCI on derivative (effective portion) Location of gain (loss) reclassified from AOCI into income (effective portion) Amount of gain (loss) recognized from AOCI on derivative (effective portion) Location of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) Forward starting interest rate swaps $ — Interest expense, net $ (0.9 ) Interest expense, net $ — Foreign currency forwards (8.4 ) Cost of goods sold 2.8 Cost of goods sold — Other income (expense), net (1.2 ) Other income (expense), net — Total $ (8.4 ) $ 0.7 $ — Three Months Ended June 30, 2017 Non-derivative financial instruments in net investment hedge relationships Amount of gain (loss) recognized in OCI on derivative (effective portion) Location of gain (loss) reclassified from AOCI into income (effective portion) Amount of gain (loss) recognized from AOCI on derivative (effective portion) Location of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) EUR 800 million notes due 2024 $ (61.9 ) Other income (expense), net $ — Other income (expense), net $ — EUR 500 million notes due 2019 (38.7 ) Other income (expense), net — Other income (expense), net — Total $ (100.6 ) $ — $ — Three Months Ended June 30, 2017 Derivatives in fair value hedge relationships Amount of gain (loss) recognized in income on derivative Location of gain (loss) recognized in income Interest rate swaps $ 0.4 Interest expense, net Total $ 0.4 Six Months Ended June 30, 2018 Derivatives in cash flow hedge relationships Amount of gain (loss) recognized in OCI on derivative Location of gain (loss) reclassified from AOCI into income Amount of gain (loss) recognized from AOCI on derivative Forward starting interest rate swaps $ — Interest expense, net $ (1.5 ) Foreign currency forwards 14.0 Cost of goods sold (0.9 ) Total $ 14.0 $ (2.4 ) Six Months Ended June 30, 2018 Derivatives in net investment hedge relationships Amount of gain (loss) recognized in OCI on derivative Location of gain (loss) reclassified from AOCI into income Amount of gain (loss) recognized from AOCI on derivative Location of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) (1) Cross currency swap $ 27.6 Interest income (expense), net $ — Interest income (expense), net $ 2.4 Total $ 27.6 $ — $ 2.4 (1) Represents amounts excluded from the assessment of effectiveness for which the difference between changes in fair value and period amortization is recorded in other comprehensive income. Six Months Ended June 30, 2018 Non-derivative financial instruments in net investment hedge relationships Amount of gain (loss) recognized in OCI on derivative Location of gain (loss) reclassified from AOCI into income Amount of gain (loss) recognized from AOCI on derivative Location of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) EUR 800 million notes due 2024 $ 25.7 Other income (expense), net $ — Other income (expense), net $ — EUR 500 million notes due 2019 16.1 Other income (expense), net — Other income (expense), net — Total $ 41.8 $ — $ — Six Months Ended June 30, 2017 Derivatives in cash flow hedge relationships Amount of gain (loss) recognized in OCI on derivative (effective portion) Location of gain (loss) reclassified from AOCI into income (effective portion) Amount of gain (loss) recognized from AOCI on derivative (effective portion) Location of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) Forward starting interest rate swaps $ — Interest expense, net $ (1.9 ) Interest expense, net $ — Foreign currency forwards (13.9 ) Cost of goods sold 4.7 Cost of goods sold — Other income (expense), net (2.1 ) Other income (expense), net — Total $ (13.9 ) $ 0.7 $ — Six Months Ended June 30, 2017 Non-derivative financial instruments in net investment hedge relationships Amount of gain (loss) recognized in OCI on derivative (effective portion) Location of gain (loss) reclassified from AOCI into income (effective portion) Amount of gain (loss) recognized from AOCI on derivative (effective portion) Location of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) EUR 800 million notes due 2024 $ (72.7 ) Other income (expense), net $ — Other income (expense), net $ — EUR 500 million notes due 2019 (34.6 ) Other income (expense), net — Other income (expense), net $ — Total $ (107.3 ) $ — $ — Six Months Ended June 30, 2017 Derivatives in fair value hedge relationships Amount of gain (loss) recognized in income on derivative Location of gain (loss)recognized in income Interest rate swaps $ 0.1 Interest expense, net Total $ 0.1 We expect net losses of approximately $1 million (pretax) recorded in AOCI as of June 30, 2018 , related to cash flow hedges, will be reclassified into earnings within the next 12 months. For derivatives designated in cash flow hedge relationships, the maximum length of time over which forecasted transactions are hedged as of June 30, 2018 , is approximately four years. The Effect of Fair Value and Cash Flow Hedge Accounting on the Unaudited Condensed Consolidated Statements of Operations (in millions) : Location and amount of gain (loss) recognized in income on fair value and cash flow hedging relationships (1) Three Months Ended June 30, 2018 Cost of goods sold Interest expense, net Total amount of income and expense line items presented in the unaudited condensed consolidated statement of operations in which the effects of fair value or cash flow hedges are recorded $ (1,739.1 ) $ (76.7 ) Gain (loss) on cash flow hedging relationships: Forward starting interest rate swaps Amount of gain (loss) reclassified from accumulated other comprehensive income into income — (0.7 ) Foreign currency forwards Amount of gain (loss) reclassified from accumulated other comprehensive income into income (0.3 ) — Location and amount of gain (loss) recognized in income on fair value and cash flow hedging relationships (1) Six Months Ended June 30, 2018 Cost of goods sold Interest expense, net Total amount of income and expense line items presented in the unaudited condensed consolidated statement of operations in which the effects of fair value or cash flow hedges are recorded $ (3,274.8 ) $ (159.9 ) Gain (loss) on cash flow hedging relationships: Forward starting interest rate swaps Amount of gain (loss) reclassified from accumulated other comprehensive income into income — (1.5 ) Foreign currency forwards Amount of gain (loss) reclassified from accumulated other comprehensive income into income (0.9 ) — (1) We had no outstanding fair value hedges during the first half of 2018. The Effect of Derivatives Not Designated as Hedging Instruments on the Unaudited Condensed Consolidated Statements of Operations (in millions): Three Months Ended June 30, 2018 Derivatives not in hedging relationships Location of gain (loss) recognized in income on derivative Amount of gain (loss) recognized in income on derivative Commodity swaps Cost of goods sold $ 62.2 Total $ 62.2 Three Months Ended June 30, 2017 Derivatives not in hedging relationships Location of gain (loss) recognized in income on derivative Amount of gain (loss) recognized in income on derivative Commodity swaps Cost of goods sold $ (17.7 ) Total $ (17.7 ) Six Months Ended June 30, 2018 Derivatives not in hedging relationships Location of gain (loss) recognized in income on derivative Amount of gain (loss) recognized in income on derivative Commodity swaps Cost of goods sold $ (12.2 ) Total $ (12.2 ) Six Months Ended June 30, 2017 Derivatives not in hedging relationships Location of gain (loss) recognized in income on derivative Amount of gain (loss) recognized in income on derivative Commodity swaps Cost of goods sold $ 48.0 Foreign currency forwards Other income (expense), net (8.3 ) Total $ 39.7

Pension and Other Postretiremen

Pension and Other Postretirement Benefits	6 Months Ended
	Jun. 30, 2018
Retirement Benefits [Abstract]
Pension and Other Postretirement Benefits	Pension and Other Postretirement Benefits Three Months Ended June 30, 2018 June 30, 2017 Pension OPEB Consolidated Pension OPEB Consolidated (In millions) Service cost: Service cost $ 1.4 $ 2.3 $ 3.7 $ 1.9 $ 2.8 $ 4.7 Other pension and postretirement costs (benefits), net: Interest cost $ 40.7 $ 6.6 $ 47.3 $ 50.8 $ 7.6 $ 58.4 Expected return on plan assets (58.9 ) — (58.9 ) (71.4 ) — (71.4 ) Amortization of prior service cost (benefit) 0.2 (0.1 ) 0.1 0.1 — 0.1 Amortization of net actuarial loss (gain) 2.0 (0.4 ) 1.6 3.6 — 3.6 Less: expected participant contributions — — — (0.1 ) — (0.1 ) Total other pension and postretirement cost (benefits), net $ (16.0 ) $ 6.1 $ (9.9 ) $ (17.0 ) $ 7.6 $ (9.4 ) Net periodic pension and OPEB cost (benefit) $ (14.6 ) $ 8.4 $ (6.2 ) $ (15.1 ) $ 10.4 $ (4.7 ) Six Months Ended June 30, 2018 June 30, 2017 Pension OPEB Consolidated Pension OPEB Consolidated (In millions) Service cost: Service cost $ 2.8 $ 4.6 $ 7.4 $ 3.7 $ 5.4 $ 9.1 Other pension and postretirement costs (benefits), net: Interest cost $ 81.9 $ 13.2 $ 95.1 $ 102.3 $ 15.2 $ 117.5 Expected return on plan assets (118.6 ) — (118.6 ) (142.1 ) 0.1 (142.0 ) Amortization of prior service cost (benefit) 0.4 (0.1 ) 0.3 0.3 — 0.3 Amortization of net actuarial loss (gain) 3.9 (0.7 ) 3.2 4.7 — 4.7 Curtailment and settlement loss (gain) 0.1 — 0.1 — (2.9 ) (2.9 ) Less: expected participant contributions — — — (0.3 ) — (0.3 ) Total other pension and postretirement cost (benefits), net $ (32.3 ) $ 12.4 $ (19.9 ) $ (35.1 ) $ 12.4 $ (22.7 ) Net periodic pension and OPEB cost (benefit) $ (29.5 ) $ 17.0 $ (12.5 ) $ (31.4 ) $ 17.8 $ (13.6 ) During the six months ended June 30, 2018 , employer contributions to the defined benefit pension plans were approximately $5 million . Total 2018 employer contributions to the defined benefit plans are expected to be approximately $10 million , based on foreign exchange rates as of June 30, 2018 . BRI and BDL contributions to their defined benefit pension plans are not included above, as they are not consolidated in our financial statements. Additionally, we have adopted the FASB's new guidance related to defined benefit pension and other postretirement plans. Specifically, the new guidance requires us to report only the service cost component in the same line item as other compensation costs arising from services rendered by the pertinent employees during the period; while the other components of net benefit cost are now presented in the unaudited condensed consolidated statements of operations separately from the service cost component and outside of operating income. We have also determined that only service cost will be reported within each operating segment and all other components will be reported within the Corporate segment. See further discussion in Note 2, "New Accounting Pronouncements" .

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Litigation, Environmental and Other Contingencies Related to litigation, environmental issues and other contingencies, we had $13.9 million and $17.8 million accrued, in aggregate, as of June 30, 2018 , and December 31, 2017 , respectively. While we cannot predict the eventual aggregate cost for legal, environmental and other matters in which we are currently involved, we believe adequate reserves have been provided for losses that are probable and estimable. Additionally, we believe that any reasonably possible losses in excess of the amounts accrued are immaterial to our unaudited condensed consolidated interim financial statements. Our legal, environmental and other liabilities are discussed in further detail within Part II—Item 8 Financial Statements, Note 19, "Commitments and Contingencies" in our Annual Report and did not significantly change during the first half of 2018 . 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, other than as noted, none of these disputes or legal actions are 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. As a result of receiving a favorable ruling related to our historical indirect tax calculations in Europe, we released a previously recorded indirect tax provision related to our Europe operations during the first quarter of 2017, resulting in a benefit of approximately $50 million , recorded within the excise taxes line item on the unaudited condensed consolidated statement of operations during the quarter ended March 31, 2017. During the second quarter of 2017, we received formal confirmation from the regulatory authority that they would not appeal the local jurisdictional court ruling, and the regulatory authority has since withdrawn its assessments. As a result, we believe this dispute is fully resolved. On February 12, 2018, Stone Brewing Company filed a trademark infringement lawsuit in federal court in the Southern District of California against MillerCoors LLC alleging that the Keystone brand has “rebranded” itself as “Stone” and is marketing itself in a manner confusingly similar to Stone Brewing Company's registered Stone trademark. Stone Brewing Company seeks treble damages in the amount of MillerCoors’ profit from Keystone sales. MillerCoors subsequently filed an answer and counterclaims against Stone Brewing Company. On May 31, 2018, Stone Brewing Company filed motions to dismiss and for a preliminary injunction seeking to bar MillerCoors from continuing to use “STONE” on Keystone Light cans and related marketing materials. A hearing relating to the motions to dismiss and preliminary injunction is currently scheduled during the third quarter of 2018. We intend to vigorously assert and defend our rights in this lawsuit. A range of potential loss is not estimable at this time. Guarantees We guarantee indebtedness and other obligations to banks and other third parties for some of our equity method investments and consolidated subsidiaries. As of June 30, 2018 , and December 31, 2017 , the unaudited condensed consolidated balance sheets include liabilities related to these guarantees of $59.8 million and $42.8 million , respectively, primarily related to the guarantee of the indebtedness of our equity method investments. See Note 4, "Investments" for further detail. Separately, related to our Kaiser indemnities, we have accrued $14.7 million and $17.3 million , in aggregate, as of June 30, 2018 , and December 31, 2017 , respectively. The maximum potential claims amount remaining for the Kaiser-related purchased tax credits was $90.3 million , based on foreign exchange rates as of June 30, 2018 . Our Kaiser liabilities are discussed in further detail within Part II—Item 8 Financial Statements, Note 19, "Commitments and Contingencies" in our Annual Report and did not significantly change during the first half of 2018 .

Basis of Presentation and Sum22

Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Segments	Our reporting segments include: MillerCoors LLC ("MillerCoors" or U.S. segment), operating in the United States; Molson Coors Canada ("MCC" or Canada segment), operating in Canada; Molson Coors Europe (Europe segment), operating in Bulgaria, Croatia, Czech Republic, Hungary, Montenegro, Republic of Ireland, Romania, Serbia, the United Kingdom and various other European countries; and Molson Coors International ("MCI" or International segment), operating in various other countries.

Basis of Presentation and Sum23

Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation and Summary of Significant Accounting Policies (Tables)	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]	The adoption of this guidance resulted in the following retrospective adjustments within our unaudited condensed consolidated results of operations: Three Months Ended June 30, 2017 As Adjusted - Pension Methodology (1) As Adjusted - Accounting Standard Update (In millions) Unaudited Condensed Consolidated Statement of Operations: Cost of goods sold $ (1,750.7 ) $ (1,755.5 ) Marketing, general and administrative expenses $ (777.8 ) $ (782.4 ) Operating income (loss) $ 546.3 $ 536.9 Other pension and postretirement benefits (costs), net $ — $ 9.4	The below "As Adjusted" amounts have been further adjusted to reflect the adoption of the accounting standard on the presentation of net periodic pension and postretirement benefit cost. See Note 2, "New Accounting Pronouncements" . Three Months Ended Three Months Ended Three Months Ended Three Months Ended March 31, 2017 June 30, 2017 September 30, 2017 December 31, 2017 As Reported As Adjusted As Reported As Adjusted As Reported As Adjusted Under Prior Method As Adjusted (In millions) Unaudited Condensed Consolidated Statements of Operations: Cost of goods sold $ (1,372.9 ) $ (1,367.7 ) $ (1,756.1 ) $ (1,750.7 ) $ (1,589.6 ) $ (1,584.1 ) $ (1,520.3 ) $ (1,514.7 ) Marketing, general and administrative expenses $ (702.8 ) $ (699.5 ) $ (781.2 ) $ (777.8 ) $ (782.8 ) $ (779.2 ) $ (779.4 ) $ (775.9 ) Special items, net $ (3.8 ) $ (3.8 ) $ (16.5 ) $ (16.5 ) $ (4.1 ) $ (4.1 ) $ (3.7 ) $ (3.7 ) Income tax benefit (expense) $ (64.6 ) $ (65.9 ) $ (123.0 ) $ (125.2 ) $ (145.3 ) $ (147.4 ) $ 392.4 $ 391.7 Net income (loss) attributable to MCBC $ 201.3 $ 208.5 $ 323.3 $ 329.9 $ 280.0 $ 287.0 $ 580.4 $ 588.8 Basic net income (loss) attributable to MCBC per share $ 0.94 $ 0.97 $ 1.50 $ 1.53 $ 1.30 $ 1.33 $ 2.69 $ 2.73 Diluted net income (loss) attributable to MCBC per share $ 0.93 $ 0.96 $ 1.49 $ 1.52 $ 1.29 $ 1.33 $ 2.68 $ 2.72 The following tables provide a comparison of our current period results of operations and financial position under the new guidance, versus our financial statements if the historical guidance had continued to be applied: Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Under Historical Guidance As Reported Under New Guidance Effect of Change Under Historical Guidance As Reported Under New Guidance Effect of Change (In millions, except per share data) Unaudited Condensed Consolidated Statement of Operations: Sales $ 3,845.2 $ 3,820.5 $ (24.7 ) $ 6,729.3 $ 6,688.5 $ (40.8 ) Excise taxes (735.3 ) (735.3 ) — (1,271.8 ) (1,271.8 ) — Net sales 3,109.9 3,085.2 (24.7 ) 5,457.5 5,416.7 (40.8 ) Cost of goods sold (1,739.1 ) (1,739.1 ) — (3,274.8 ) (3,274.8 ) — Gross profit 1,370.8 1,346.1 (24.7 ) 2,182.7 2,141.9 (40.8 ) Marketing, general and administrative expenses (757.7 ) (744.7 ) 13.0 (1,451.9 ) (1,425.8 ) 26.1 Special items, net (10.5 ) (10.5 ) — 304.3 304.3 — Operating income (loss) 602.6 590.9 (11.7 ) 1,035.1 1,020.4 (14.7 ) Interest income (expense), net (75.8 ) (76.7 ) (0.9 ) (158.2 ) (159.9 ) (1.7 ) Other pension and postretirement benefits (costs), net 9.9 9.9 — 19.9 19.9 — Other income (expense), net (1.1 ) (1.1 ) — — — — Income (loss) before income taxes 535.6 523.0 (12.6 ) 896.8 880.4 (16.4 ) Income tax benefit (expense) (94.4 ) (92.2 ) 2.2 (170.1 ) (167.1 ) 3.0 Net income (loss) 441.2 430.8 (10.4 ) 726.7 713.3 (13.4 ) Net (income) loss attributable to noncontrolling interests (6.7 ) (6.7 ) — (11.1 ) (11.1 ) — Net income (loss) attributable to MCBC $ 434.5 $ 424.1 $ (10.4 ) $ 715.6 $ 702.2 $ (13.4 ) Basic net income (loss) attributable to MCBC per share $ 2.01 $ 1.96 $ (0.05 ) $ 3.31 $ 3.25 $ (0.06 ) Diluted net income (loss) attributable to MCBC per share $ 2.01 $ 1.96 $ (0.05 ) $ 3.30 $ 3.24 $ (0.06 ) As of June 30, 2018 Under Historical Guidance As Reported Under New Guidance Effect of Change (In millions) Unaudited Condensed Consolidated Balance Sheet: Assets Accounts receivable, net $ 984.7 $ 984.9 $ 0.2 Other current assets, net $ 336.8 $ 341.1 $ 4.3 Liabilities and equity Accounts payable and other current liabilities $ 2,913.5 $ 2,971.0 $ 57.5 Deferred tax liabilities $ 1,783.0 $ 1,771.0 $ (12.0 ) Retained earnings $ 7,744.7 $ 7,703.5 $ (41.2 ) AOCI $ (1,025.6 ) $ (1,025.4 ) $ 0.2	Six Months Ended June 30, 2017 As Adjusted - Pension Methodology (1) As Adjusted - Accounting Standard Update (In millions) Unaudited Condensed Consolidated Statement of Operations: Cost of goods sold $ (3,118.4 ) $ (3,127.8 ) Marketing, general and administrative expenses $ (1,477.3 ) $ (1,487.7 ) Special items, net $ (20.3 ) $ (23.2 ) Operating income (loss) $ 924.0 $ 901.3 Other pension and postretirement benefits (costs), net $ — $ 22.7

New Accounting Pronouncements (

New Accounting Pronouncements (Tables)	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]	The adoption of this guidance resulted in the following retrospective adjustments within our unaudited condensed consolidated results of operations: Three Months Ended June 30, 2017 As Adjusted - Pension Methodology (1) As Adjusted - Accounting Standard Update (In millions) Unaudited Condensed Consolidated Statement of Operations: Cost of goods sold $ (1,750.7 ) $ (1,755.5 ) Marketing, general and administrative expenses $ (777.8 ) $ (782.4 ) Operating income (loss) $ 546.3 $ 536.9 Other pension and postretirement benefits (costs), net $ — $ 9.4	The below "As Adjusted" amounts have been further adjusted to reflect the adoption of the accounting standard on the presentation of net periodic pension and postretirement benefit cost. See Note 2, "New Accounting Pronouncements" . Three Months Ended Three Months Ended Three Months Ended Three Months Ended March 31, 2017 June 30, 2017 September 30, 2017 December 31, 2017 As Reported As Adjusted As Reported As Adjusted As Reported As Adjusted Under Prior Method As Adjusted (In millions) Unaudited Condensed Consolidated Statements of Operations: Cost of goods sold $ (1,372.9 ) $ (1,367.7 ) $ (1,756.1 ) $ (1,750.7 ) $ (1,589.6 ) $ (1,584.1 ) $ (1,520.3 ) $ (1,514.7 ) Marketing, general and administrative expenses $ (702.8 ) $ (699.5 ) $ (781.2 ) $ (777.8 ) $ (782.8 ) $ (779.2 ) $ (779.4 ) $ (775.9 ) Special items, net $ (3.8 ) $ (3.8 ) $ (16.5 ) $ (16.5 ) $ (4.1 ) $ (4.1 ) $ (3.7 ) $ (3.7 ) Income tax benefit (expense) $ (64.6 ) $ (65.9 ) $ (123.0 ) $ (125.2 ) $ (145.3 ) $ (147.4 ) $ 392.4 $ 391.7 Net income (loss) attributable to MCBC $ 201.3 $ 208.5 $ 323.3 $ 329.9 $ 280.0 $ 287.0 $ 580.4 $ 588.8 Basic net income (loss) attributable to MCBC per share $ 0.94 $ 0.97 $ 1.50 $ 1.53 $ 1.30 $ 1.33 $ 2.69 $ 2.73 Diluted net income (loss) attributable to MCBC per share $ 0.93 $ 0.96 $ 1.49 $ 1.52 $ 1.29 $ 1.33 $ 2.68 $ 2.72 The following tables provide a comparison of our current period results of operations and financial position under the new guidance, versus our financial statements if the historical guidance had continued to be applied: Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Under Historical Guidance As Reported Under New Guidance Effect of Change Under Historical Guidance As Reported Under New Guidance Effect of Change (In millions, except per share data) Unaudited Condensed Consolidated Statement of Operations: Sales $ 3,845.2 $ 3,820.5 $ (24.7 ) $ 6,729.3 $ 6,688.5 $ (40.8 ) Excise taxes (735.3 ) (735.3 ) — (1,271.8 ) (1,271.8 ) — Net sales 3,109.9 3,085.2 (24.7 ) 5,457.5 5,416.7 (40.8 ) Cost of goods sold (1,739.1 ) (1,739.1 ) — (3,274.8 ) (3,274.8 ) — Gross profit 1,370.8 1,346.1 (24.7 ) 2,182.7 2,141.9 (40.8 ) Marketing, general and administrative expenses (757.7 ) (744.7 ) 13.0 (1,451.9 ) (1,425.8 ) 26.1 Special items, net (10.5 ) (10.5 ) — 304.3 304.3 — Operating income (loss) 602.6 590.9 (11.7 ) 1,035.1 1,020.4 (14.7 ) Interest income (expense), net (75.8 ) (76.7 ) (0.9 ) (158.2 ) (159.9 ) (1.7 ) Other pension and postretirement benefits (costs), net 9.9 9.9 — 19.9 19.9 — Other income (expense), net (1.1 ) (1.1 ) — — — — Income (loss) before income taxes 535.6 523.0 (12.6 ) 896.8 880.4 (16.4 ) Income tax benefit (expense) (94.4 ) (92.2 ) 2.2 (170.1 ) (167.1 ) 3.0 Net income (loss) 441.2 430.8 (10.4 ) 726.7 713.3 (13.4 ) Net (income) loss attributable to noncontrolling interests (6.7 ) (6.7 ) — (11.1 ) (11.1 ) — Net income (loss) attributable to MCBC $ 434.5 $ 424.1 $ (10.4 ) $ 715.6 $ 702.2 $ (13.4 ) Basic net income (loss) attributable to MCBC per share $ 2.01 $ 1.96 $ (0.05 ) $ 3.31 $ 3.25 $ (0.06 ) Diluted net income (loss) attributable to MCBC per share $ 2.01 $ 1.96 $ (0.05 ) $ 3.30 $ 3.24 $ (0.06 ) As of June 30, 2018 Under Historical Guidance As Reported Under New Guidance Effect of Change (In millions) Unaudited Condensed Consolidated Balance Sheet: Assets Accounts receivable, net $ 984.7 $ 984.9 $ 0.2 Other current assets, net $ 336.8 $ 341.1 $ 4.3 Liabilities and equity Accounts payable and other current liabilities $ 2,913.5 $ 2,971.0 $ 57.5 Deferred tax liabilities $ 1,783.0 $ 1,771.0 $ (12.0 ) Retained earnings $ 7,744.7 $ 7,703.5 $ (41.2 ) AOCI $ (1,025.6 ) $ (1,025.4 ) $ 0.2	Six Months Ended June 30, 2017 As Adjusted - Pension Methodology (1) As Adjusted - Accounting Standard Update (In millions) Unaudited Condensed Consolidated Statement of Operations: Cost of goods sold $ (3,118.4 ) $ (3,127.8 ) Marketing, general and administrative expenses $ (1,477.3 ) $ (1,487.7 ) Special items, net $ (20.3 ) $ (23.2 ) Operating income (loss) $ 924.0 $ 901.3 Other pension and postretirement benefits (costs), net $ — $ 22.7
Schedule of New Accounting Pronouncement and Changes in Accounting Principles by Segment [Table Text Block]	The following table shows the (increase) decrease for the respective line item within the unaudited condensed consolidated statement of operations for segment reporting for the three months ended June 30, 2017 : Corporate Europe U.S. Canada Cost of goods sold $ — $ (6.7 ) $ 1.8 $ 0.1 Marketing, general and administrative expenses — (4.6 ) — — Other pension and postretirement benefits (costs), net 9.4 — — — Total $ 9.4 $ (11.3 ) $ 1.8 $ 0.1		The following table shows the (increase) decrease for the respective line item within the unaudited condensed consolidated statement of operations for segment reporting for the six months ended June 30, 2017 : Corporate Europe U.S. Canada Cost of goods sold $ — $ (13.3 ) $ 3.6 $ 0.3 Marketing, general and administrative expenses — (9.3 ) (0.8 ) (0.3 ) Special items, net — — — (2.9 ) Other pension and postretirement benefits (costs), net 22.7 — — — Total $ 22.7 $ (22.6 ) $ 2.8 $ (2.9 )

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Net sales by segment	The following tables present net sales, income (loss) before income taxes and total assets by segment: Three Months Ended Six Months Ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 (In millions) U.S. $ 2,072.5 $ 2,138.9 $ 3,720.3 $ 3,888.8 Canada 397.4 407.6 681.2 698.7 Europe 586.1 524.7 960.4 906.3 International 67.9 65.1 125.4 126.9 Corporate 0.3 0.3 0.5 0.6 Inter-segment net sales eliminations (39.0 ) (45.3 ) (71.1 ) (81.3 ) Consolidated net sales $ 3,085.2 $ 3,091.3 $ 5,416.7 $ 5,540.0
Income (loss) from continuing operations before income taxes by segment	Three Months Ended Six Months Ended June 30, 2018 June 30, 2017 (1) June 30, 2018 June 30, 2017 (1) (In millions) U.S. $ 445.5 $ 486.5 $ 707.2 $ 803.1 Canada (2) 61.3 69.7 70.4 90.6 Europe (3) 86.8 69.9 56.9 96.9 International 1.3 (7.7 ) 5.0 (6.2 ) Corporate (4) (71.9 ) (158.2 ) 40.9 (243.3 ) Consolidated income (loss) before income taxes $ 523.0 $ 460.2 $ 880.4 $ 741.1 (1) Segment results for the three and six months ended June 30, 2017 , have been adjusted to reflect the adoption of the new accounting pronouncement for pension and other postretirement benefit costs as well as the reclassification of all non-service cost components of pension and other postretirement costs to Corporate. See Note 2, "New Accounting Pronouncements" for further details. (2) During the first quarter of 2017, we received payment and recorded a gain of CAD 10.6 million , or $8.1 million , resulting from a purchase price adjustment related to the historical sale of Molson Inc.’s ownership interest in the Montreal Canadiens, which is considered an affiliate of MCBC. (3) During the three months ended March 31, 2017, we recorded a provision for an estimate of uncollectible receivables of approximately $11 million related to Agrokor, a large customer in Croatia. We have subsequently reduced this exposure and as of June 30, 2018, our estimated provision of uncollectible receivables from Agrokor totals approximately $4 million . The settlement plan related to this matter was announced in July 2018. We are currently evaluating the implications of the settlement plan, and do not expect it to have a significant impact on our financial statements upon finalization. Separately, during the first quarter of 2017, we released an indirect tax loss contingency, which was initially recorded in the fourth quarter of 2016, for a benefit of approximately $50 million . See Note 14, "Commitments and Contingencies" for details. (4) During the three months ended March 31, 2018, we recorded a gain of $328.0 million related to the Adjustment Amount as defined and further discussed in Note 6, "Special Items" . Additionally, related to the unrealized mark-to-market valuation on our commodity hedge positions, we recorded an unrealized gain of $45.1 million and an unrealized loss of $ 39.6 million during the three and six months ended June 30, 2018, respectively, compared to an unrealized loss of $23.4 million and an unrealized gain of $ 39.7 million during the three and six months ended June 30, 2017, respectively.
Total assets by segment	As of June 30, 2018 December 31, 2017 (In millions) U.S. $ 19,318.7 $ 19,353.6 Canada 4,731.5 4,835.7 Europe 5,619.5 5,522.0 International 279.4 294.8 Corporate 611.8 240.8 Consolidated total assets $ 30,560.9 $ 30,246.9

Investments (Tables)

Investments (Tables)	6 Months Ended
	Jun. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]
Schedules of Consolidated Investments	The following summarizes the assets and liabilities of our consolidated VIEs (including noncontrolling interests): As of June 30, 2018 December 31, 2017 Total Assets Total Liabilities Total Assets Total Liabilities (In millions) Grolsch $ 4.7 $ 0.3 $ 4.8 $ 0.2 Cobra U.K. $ 17.1 $ 0.8 $ 20.2 $ 2.1 RMMC $ 78.2 $ 5.0 $ 74.4 $ 4.4 RMBC $ 71.3 $ 4.2 $ 56.2 $ 4.6

Share-Based Payments (Tables)

Share-Based Payments (Tables)	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of components of share-based compensation expense	Three Months Ended Six Months Ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 (In millions) Pretax compensation expense $ 10.3 $ 16.1 $ 25.1 $ 31.6 Tax benefit (2.1 ) (5.5 ) (3.7 ) (10.8 ) After-tax compensation expense $ 8.2 $ 10.6 $ 21.4 $ 20.8
Schedule of non-vested RSUs, DSUs, PUs and PSUs outstanding and the activity for the period	RSUs and DSUs PSUs Units Weighted-average grant date fair value per unit Units Weighted-average grant date fair value per unit (In millions, except per unit amounts) Non-vested as of December 31, 2017 1.0 $95.80 0.4 $89.57 Granted 0.4 $73.00 0.2 $78.30 Vested (0.3 ) $90.30 (0.1 ) $75.15 Forfeited — $— — $— Non-vested as of June 30, 2018 1.1 $89.16 0.5 $86.91 The weighted-average fair value per unit for the non-vested PSUs is $86.31 as of June 30, 2018 .
Schedule of stock options and SOSARs outstanding and the activity for the period	Stock options and SOSARs Awards Weighted-average exercise price per share Weighted-average remaining contractual life (years) Aggregate intrinsic value (In millions, except per share amounts and years) Outstanding as of December 31, 2017 1.5 $63.60 4.6 $ 31.3 Granted 0.2 $78.79 Exercised (0.2) $50.28 Forfeited — $— Outstanding as of June 30, 2018 1.5 $67.04 4.9 $ 14.2 Expected to vest as of June 30, 2018 0.3 $85.32 8.8 $ — Exercisable as of June 30, 2018 1.2 $61.35 3.7 $ 14.2
Schedule of share-based compensation weighted average assumptions	The fair value of each option granted in the first half of 2018 and 2017 was determined on the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions: Six Months Ended June 30, 2018 June 30, 2017 Risk-free interest rate 2.65% 2.04% Dividend yield 2.08% 1.64% Volatility range 22.36%-24.14% 22.40%-22.88% Weighted-average volatility 22.81% 22.52% Expected term (years) 5.3 5.1 Weighted-average fair market value $15.44 $18.66
Schedule of Share-based payment Award, Performance Share Units, Valuation Assumptions	The fair value of the market metric for each PSU granted in the first half of 2018 and 2017 was determined on the date of grant using a Monte Carlo model to simulate total stockholder return for MCBC and peer companies with the following weighted-average assumptions: Six Months Ended June 30, 2018 June 30, 2017 Risk-free interest rate 2.34% 1.59% Dividend yield 2.08% 1.64% Volatility range 13.03%-81.87% 13.71%-80.59% Weighted-average volatility 22.76% 24.24% Expected term (years) 2.8 2.8 Weighted-average fair market value $78.30 $97.13

Special Items (Tables)

Special Items (Tables)	6 Months Ended
	Jun. 30, 2018
Unusual or Infrequent Items, or Both [Abstract]
Special items recorded by segment	Three Months Ended Six Months Ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 (In millions) Employee-related charges Restructuring $ 1.0 $ 0.4 $ 4.9 $ 1.3 Impairments or asset abandonment charges U.S. - Asset abandonment (1) 1.3 12.4 2.8 14.4 Canada - Asset abandonment (2) 6.0 1.1 12.1 2.3 Europe - Asset abandonment (3) 1.0 2.6 2.7 5.2 Termination fees and other (gains) losses International (4) 1.2 — 1.2 — Acquisition purchase price adjustment settlement gain (5) — — (328.0 ) — Total Special items, net $ 10.5 $ 16.5 $ (304.3 ) $ 23.2 (1) Charges for the three and six months ended June 30, 2018 , relate to the planned closure of the Colfax, California cidery, and consist primarily of accelerated depreciation in excess of normal depreciation. Charges for the three and six months ended June 30, 2017 , relate to the closure of the Eden, North Carolina, brewery. (2) For the three and six months ended June 30, 2018 , we incurred charges consisting primarily of accelerated depreciation in excess of normal depreciation related to the planned closures of the Vancouver and Montreal breweries, which are currently expected to occur in 2019 and 2021, respectively. Charges for the three and six months ended June 30, 2017 , relate primarily to accelerated depreciation in excess of normal depreciation related to the above mentioned planned closure of the Vancouver brewery. (3) For the three and six months ended June 30, 2018 , we incurred charges primarily related to the closure of the Burton South brewery, which closed during the first quarter of 2018. For the three and six months ended June 30, 2017 , we incurred charges consisting primarily of accelerated depreciation in excess of normal depreciation related to the Burton South brewery closure. (4) For the three and six months ended June 30, 2018 , we incurred charges related to the exit of our China business. (5) On October 11, 2016 , we completed the Acquisition for $12.0 billion in cash, subject to a downward adjustment as described in the purchase agreement. This purchase price "Adjustment Amount," as defined in the purchase agreement, required payment to MCBC if the unaudited EBITDA for the Miller International Business for the twelve months prior to closing was below $70 million . Throughout the process outlined in the purchase agreement, significant uncertainty remained on the ultimate outcome of the Adjustment Amount. As a result, no adjustment to purchase accounting was made through the completion of the measurement period in October 2017. Subsequently, on January 21, 2018, MCBC and ABI entered into a settlement agreement related to the purchase price adjustment under the purchase agreement, and on January 26, 2018, pursuant to the settlement agreement, ABI paid to MCBC $330.0 million , of which $328.0 million constitutes the Adjustment Amount. As this settlement occurred following the finalization of purchase accounting, we recorded the settlement proceeds related to the Adjustment Amount as a gain within special items, net in our unaudited condensed consolidated statement of operations in our Corporate segment and within cash provided by operating activities within our unaudited condensed consolidated statement of cash flows for the six months ended June 30, 2018 . MCBC and ABI also agreed to certain mutual releases as further described in the settlement agreement which was filed as an exhibit to a Current Report on Form 8-K filed January 22, 2018.
Change in the restructuring accrual	U.S. Canada Europe International Corporate Total (In millions) As of December 31, 2017 $ 0.6 $ 4.3 $ 1.8 $ 0.2 $ — $ 6.9 Charges incurred and changes in estimates 2.0 (0.8 ) 2.1 1.6 — 4.9 Payments made (0.6 ) (1.5 ) (2.3 ) (0.2 ) — (4.6 ) Foreign currency and other adjustments — (0.1 ) — — — (0.1 ) As of June 30, 2018 $ 2.0 $ 1.9 $ 1.6 $ 1.6 $ — $ 7.1 U.S. Canada Europe International Corporate Total (In millions) As of December 31, 2016 $ 5.1 $ 5.9 $ 2.8 $ 0.2 $ 0.7 $ 14.7 Charges incurred and changes in estimates 0.7 (0.1 ) — 0.6 0.1 1.3 Payments made (4.6 ) (0.8 ) (0.5 ) (0.2 ) (0.6 ) (6.7 ) Foreign currency and other adjustments — 0.1 0.1 — — 0.2 As of June 30, 2017 $ 1.2 $ 5.1 $ 2.4 $ 0.6 $ 0.2 $ 9.5

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of changes in goodwill	U.S. Canada Europe International Consolidated Changes in Goodwill: (In millions) As of December 31, 2017 $ 5,928.5 $ 932.1 $ 1,538.0 $ 6.9 $ 8,405.5 Business acquisition (1) — — 9.8 — 9.8 Adjustments to preliminary purchase price allocation (2) — (2.9 ) — — (2.9 ) Foreign currency translation — (39.7 ) (39.6 ) (0.5 ) (79.8 ) As of June 30, 2018 $ 5,928.5 $ 889.5 $ 1,508.2 $ 6.4 $ 8,332.6 (1) During the first quarter of 2018, we completed the acquisition of Aspall Cyder Limited, an established premium cider business in the U.K. As part of the preliminary purchase price accounting in the first quarter of 2018, goodwill generated in conjunction with this acquisition has been recorded within our Europe segment, subject to normal purchase accounting adjustments. (2) During the second quarter of 2018, we recorded adjustments to the preliminary purchase price allocation related to our acquisition of Le Trou du Diable, which was completed in the fourth quarter of 2017.
Schedule of intangible assets excluding goodwill	The following table presents details of our intangible assets, other than goodwill, as of June 30, 2018 : Useful life Gross Accumulated amortization Net (Years) (In millions) Intangible assets subject to amortization: Brands 10 - 50 $ 5,089.2 $ (595.1 ) $ 4,494.1 License agreements and distribution rights 15 - 28 222.8 (95.0 ) 127.8 Other 2 - 40 132.5 (28.8 ) 103.7 Intangible assets not subject to amortization: Brands Indefinite 8,184.9 — 8,184.9 Distribution networks Indefinite 770.3 — 770.3 Other Indefinite 337.6 — 337.6 Total $ 14,737.3 $ (718.9 ) $ 14,018.4 The following table presents details of our intangible assets, other than goodwill, as of December 31, 2017 : Useful life Gross Accumulated amortization Net (Years) (In millions) Intangible assets subject to amortization: Brands 10 - 50 $ 5,215.3 $ (516.0 ) $ 4,699.3 License agreements and distribution rights 15 - 28 236.3 (103.9 ) 132.4 Other 2 - 40 148.3 (42.4 ) 105.9 Intangible assets not subject to amortization: Brands Indefinite 8,216.6 — 8,216.6 Distribution networks Indefinite 804.7 — 804.7 Other Indefinite 337.6 — 337.6 Total $ 14,958.8 $ (662.3 ) $ 14,296.5
Schedule of future amortization expense	Based on foreign exchange rates as of June 30, 2018 , the estimated future amortization expense of intangible assets is as follows: Fiscal year Amount (In millions) 2018 - remaining $ 111.5 2019 $ 222.8 2020 $ 221.8 2021 $ 215.5 2022 $ 210.9

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Total long-term borrowings	As of June 30, 2018 December 31, 2017 (In millions) Long-term debt: CAD 400 million 2.25% notes due 2018 $ 304.6 $ 318.2 CAD 500 million 2.75% notes due 2020 380.7 397.7 CAD 500 million 2.84% notes due 2023 380.7 397.7 CAD 500 million 3.44% notes due 2026 380.7 397.7 $500 million 1.45% notes due 2019 500.0 500.0 $500 million 1.90% notes due 2019 (1) 499.1 498.5 $500 million 2.25% notes due 2020 (1)(2) 498.6 498.2 $1.0 billion 2.10% notes due 2021 1,000.0 1,000.0 $500 million 3.5% notes due 2022 (1) 510.7 512.2 $2.0 billion 3.0% notes due 2026 2,000.0 2,000.0 $1.1 billion 5.0% notes due 2042 1,100.0 1,100.0 $1.8 billion 4.2% notes due 2046 1,800.0 1,800.0 EUR 500 million notes due 2019 584.2 600.3 EUR 800 million 1.25% notes due 2024 934.7 960.4 Other long-term debt 48.7 22.1 Less: unamortized debt discounts and debt issuance costs (70.0 ) (75.9 ) Total long-term debt (including current portion) 10,852.7 10,927.1 Less: current portion of long-term debt (1,397.6 ) (328.4 ) Total long-term debt $ 9,455.1 $ 10,598.7 Short-term borrowings: Commercial paper program $ — $ 379.0 Other short-term borrowings (3) 13.4 7.4 Current portion of long-term debt 1,397.6 328.4 Current portion of long-term debt and short-term borrowings $ 1,411.0 $ 714.8 (1) The fair value hedges related to these notes have been settled and are being amortized over the life of the respective note. (2) During the second quarter, we entered into cross currency swaps in order to hedge a portion of the foreign currency translational impacts of our European investment. As a result of the swaps, we economically converted our $500 million 2.25% senior notes due 2020 and associated interest to EUR denominated, which will result in a EUR interest rate to be received at 0.85% . See Note 12, "Derivative Instruments and Hedging Activities" for further details. (3) As of June 30, 2018 , we had $6.9 million in bank overdrafts and $71.6 million in bank cash related to our cross-border, cross-currency cash pool, for a net positive position of $64.7 million . As of December 31, 2017 , we had $1.2 million in bank overdrafts and $37.8 million in bank cash related to our cross-border, cross-currency cash pool for a net positive position of $36.6 million . We had total outstanding borrowings of $5.4 million and $3.2 million under our two JPY overdraft facilities as of June 30, 2018 , and December 31, 2017 , respectively. In addition, we have GBP and CAD lines of credit under which we had no borrowings as of June 30, 2018 , or December 31, 2017 .

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2018
Inventory Disclosure [Abstract]
Schedule of Inventory, Current	As of June 30, 2018 December 31, 2017 (In millions) Finished goods $ 284.5 $ 222.3 Work in process 87.6 85.2 Raw materials 196.9 231.7 Packaging materials 68.5 52.3 Inventories, net $ 637.5 $ 591.5

Accumulated Other Comprehensi32

Accumulated Other Comprehensive Income (Loss) ("AOCI") (Tables)	6 Months Ended
	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	11. Accumulated Other Comprehensive Income (Loss) MCBC shareholders Foreign currency translation adjustments Gain (loss) on derivative and non-derivative instruments Pension and postretirement benefit adjustments Equity method investments Accumulated other comprehensive income (loss) (In millions) As of December 31, 2017 $ (314.6 ) $ (110.9 ) $ (375.0 ) $ (59.5 ) $ (860.0 ) Foreign currency translation adjustments (216.0 ) 69.4 (1.0 ) — (147.6 ) Unrealized gain (loss) on derivative instruments — 14.0 — — 14.0 Reclassification of derivative (gain) loss to income — 2.4 — — 2.4 Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income — — 3.6 — 3.6 Ownership share of unconsolidated subsidiaries' other comprehensive income (loss) — — — (0.7 ) (0.7 ) Tax benefit (expense) (14.8 ) (21.9 ) (0.6 ) 0.2 (37.1 ) As of June 30, 2018 $ (545.4 ) $ (47.0 ) $ (373.0 ) $ (60.0 ) $ (1,025.4 )
Schedule of Reclassifications from Accumulated Other Comprehensive Income to Earnings	Three Months Ended Six Months Ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 Reclassifications from AOCI Location of gain (loss) recognized in income (In millions) Gain/(loss) on cash flow hedges: Forward starting interest rate swaps $ (0.7 ) $ (0.9 ) $ (1.5 ) $ (1.9 ) Interest expense, net Foreign currency forwards (0.3 ) 2.8 (0.9 ) 4.7 Cost of goods sold Foreign currency forwards — (1.2 ) — (2.1 ) Other income (expense), net Total income (loss) reclassified, before tax (1.0 ) 0.7 (2.4 ) 0.7 Income tax benefit (expense) 0.3 (0.3 ) 0.6 (0.3 ) Net income (loss) reclassified, net of tax $ (0.7 ) $ 0.4 $ (1.8 ) $ 0.4 Amortization of defined benefit pension and other postretirement benefit plan items: Prior service benefit (cost) $ (0.1 ) $ (0.1 ) $ (0.3 ) $ (0.3 ) Other pension and postretirement benefits (costs), net Curtailment and net actuarial gain (loss) (1.6 ) (3.6 ) (3.3 ) (1.8 ) Other pension and postretirement benefits (costs), net Total income (loss) reclassified, before tax (1.7 ) (3.7 ) (3.6 ) (2.1 ) Income tax benefit (expense) 0.4 (1.0 ) 0.6 (1.6 ) Net income (loss) reclassified, net of tax $ (1.3 ) $ (4.7 ) $ (3.0 ) $ (3.7 ) Total income (loss) reclassified, net of tax $ (2.0 ) $ (4.3 ) $ (4.8 ) $ (3.3 )

Derivative Instruments and He33

Derivative Instruments and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2018
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 June 30, 2018 , and December 31, 2017 . Fair value measurements as of June 30, 2018 As of June 30, 2018 Quoted prices in active markets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) (In millions) Cross currency swaps $ 27.6 $ — $ 27.6 $ — Foreign currency forwards 4.1 — 4.1 — Commodity swaps and options 82.7 — 82.7 — Total $ 114.4 $ — $ 114.4 $ — Fair value measurements as of December 31, 2017 As of December 31, 2017 Quoted prices in active markets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) (In millions) Foreign currency forwards $ (10.9 ) $ — $ (10.9 ) $ — Commodity swaps and options 122.8 — 122.8 — Total $ 111.9 $ — $ 111.9 $ —
Fair Value of Derivative Instruments in the Condensed Consolidated Balance Sheets	Fair Value of Derivative Instruments in the Unaudited Condensed Consolidated Balance Sheets (in millions): As of June 30, 2018 Derivative Assets Derivative Liabilities Notional amount Balance sheet location Fair value Balance sheet location Fair value Derivatives designated as hedging instruments: Cross currency swaps $ 500.0 Other non-current assets $ 27.6 Other liabilities $ — Foreign currency forwards $ 339.6 Other current assets 2.4 Accounts payable and other current liabilities (0.8 ) Other non-current assets 3.2 Other liabilities (0.7 ) Total derivatives designated as hedging instruments $ 33.2 $ (1.5 ) Derivatives not designated as hedging instruments: Commodity swaps (1) $ 796.0 Other current assets $ 59.0 Accounts payable and other current liabilities $ (7.0 ) Other non-current assets 36.2 Other liabilities (5.5 ) Commodity options (1) $ 30.6 Other current assets 0.2 Accounts payable and other current liabilities (0.2 ) Other non-current assets — Other liabilities — Total derivatives not designated as hedging instruments $ 95.4 $ (12.7 ) As of December 31, 2017 Derivative Assets Derivative Liabilities Notional amount Balance sheet location Fair value Balance sheet location Fair value Derivatives designated as hedging instruments: Foreign currency forwards $ 326.4 Other current assets $ 0.4 Accounts payable and other current liabilities $ (6.1 ) Other non-current assets 0.2 Other liabilities (5.4 ) Total derivatives designated as hedging instruments $ 0.6 $ (11.5 ) Derivatives not designated as hedging instruments: Commodity swaps (1) $ 765.0 Other current assets $ 70.8 Accounts payable and other current liabilities $ (7.3 ) Other non-current assets 63.5 Other liabilities (4.2 ) Commodity options (1) $ 30.6 Other current and non-current assets 0.2 Accounts payable and other current liabilities and other liabilities (0.2 ) Total derivatives not designated as hedging instruments $ 134.5 $ (11.7 ) (1) Notional includes offsetting buy and sell positions, shown in terms of absolute value. Buy and sell positions are shown gross in the asset and/or liability position, as appropriate. Items Designated and Qualifying as Hedged Items in Fair Value Hedging Relationships in the Unaudited Condensed Consolidated Balance Sheets (in millions): Line item in the balance sheet in which the hedged item is included Carrying amount of the hedged assets/liabilities Cumulative amount of fair value hedging adjustment(s) in the hedged assets/liabilities (1) Increase/(Decrease) As of June 30, 2018 As of June 30, 2018 (In millions) Current portion of long-term debt and short-term borrowings $ — $ (0.9 ) Long-term debt $ — $ 9.3 (1) Entire balances relate to hedging adjustments on discontinued hedging relationships.
The Effect of Derivative Instruments on the Condensed Consolidated Statements of Operations	The Pretax Effect of Fair Value and Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income (in millions): Three Months Ended June 30, 2018 Derivatives in cash flow hedge relationships Amount of gain (loss) recognized Location of gain (loss) Amount of gain Forward starting interest rate swaps $ — Interest expense, net $ (0.7 ) Foreign currency forwards 6.5 Cost of goods sold (0.3 ) Total $ 6.5 $ (1.0 ) Three Months Ended June 30, 2018 Derivatives in net investment hedge relationships Amount of gain (loss) recognized in OCI on derivative Location of gain (loss) reclassified from AOCI into income Amount of gain (loss) recognized from AOCI on derivative Location of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) (1) Cross currency swap $ 27.6 Interest income (expense), net $ — Interest income (expense), net $ 2.4 Total $ 27.6 $ — $ 2.4 (1) Represents amounts excluded from the assessment of effectiveness for which the difference between changes in fair value and period amortization is recorded in other comprehensive income. Three Months Ended June 30, 2018 Non-derivative financial instruments in net investment hedge relationships Amount of gain (loss) recognized in OCI on derivative Location of gain (loss) reclassified from AOCI into income Amount of gain (loss) recognized from AOCI on derivative Location of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) EUR 800 million notes due 2024 $ 51.2 Other income (expense), net $ — Other income (expense), net $ — EUR 500 million notes due 2019 32.0 Other income (expense), net — Other income (expense), net — Total $ 83.2 $ — $ — Three Months Ended June 30, 2017 Derivatives in cash flow hedge relationships Amount of gain (loss) recognized in OCI on derivative (effective portion) Location of gain (loss) reclassified from AOCI into income (effective portion) Amount of gain (loss) recognized from AOCI on derivative (effective portion) Location of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) Forward starting interest rate swaps $ — Interest expense, net $ (0.9 ) Interest expense, net $ — Foreign currency forwards (8.4 ) Cost of goods sold 2.8 Cost of goods sold — Other income (expense), net (1.2 ) Other income (expense), net — Total $ (8.4 ) $ 0.7 $ — Three Months Ended June 30, 2017 Non-derivative financial instruments in net investment hedge relationships Amount of gain (loss) recognized in OCI on derivative (effective portion) Location of gain (loss) reclassified from AOCI into income (effective portion) Amount of gain (loss) recognized from AOCI on derivative (effective portion) Location of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) EUR 800 million notes due 2024 $ (61.9 ) Other income (expense), net $ — Other income (expense), net $ — EUR 500 million notes due 2019 (38.7 ) Other income (expense), net — Other income (expense), net — Total $ (100.6 ) $ — $ — Three Months Ended June 30, 2017 Derivatives in fair value hedge relationships Amount of gain (loss) recognized in income on derivative Location of gain (loss) recognized in income Interest rate swaps $ 0.4 Interest expense, net Total $ 0.4 Six Months Ended June 30, 2018 Derivatives in cash flow hedge relationships Amount of gain (loss) recognized in OCI on derivative Location of gain (loss) reclassified from AOCI into income Amount of gain (loss) recognized from AOCI on derivative Forward starting interest rate swaps $ — Interest expense, net $ (1.5 ) Foreign currency forwards 14.0 Cost of goods sold (0.9 ) Total $ 14.0 $ (2.4 ) Six Months Ended June 30, 2018 Derivatives in net investment hedge relationships Amount of gain (loss) recognized in OCI on derivative Location of gain (loss) reclassified from AOCI into income Amount of gain (loss) recognized from AOCI on derivative Location of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) (1) Cross currency swap $ 27.6 Interest income (expense), net $ — Interest income (expense), net $ 2.4 Total $ 27.6 $ — $ 2.4 (1) Represents amounts excluded from the assessment of effectiveness for which the difference between changes in fair value and period amortization is recorded in other comprehensive income. Six Months Ended June 30, 2018 Non-derivative financial instruments in net investment hedge relationships Amount of gain (loss) recognized in OCI on derivative Location of gain (loss) reclassified from AOCI into income Amount of gain (loss) recognized from AOCI on derivative Location of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing) EUR 800 million notes due 2024 $ 25.7 Other income (expense), net $ — Other income (expense), net $ — EUR 500 million notes due 2019 16.1 Other income (expense), net — Other income (expense), net — Total $ 41.8 $ — $ — Six Months Ended June 30, 2017 Derivatives in cash flow hedge relationships Amount of gain (loss) recognized in OCI on derivative (effective portion) Location of gain (loss) reclassified from AOCI into income (effective portion) Amount of gain (loss) recognized from AOCI on derivative (effective portion) Location of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) Forward starting interest rate swaps $ — Interest expense, net $ (1.9 ) Interest expense, net $ — Foreign currency forwards (13.9 ) Cost of goods sold 4.7 Cost of goods sold — Other income (expense), net (2.1 ) Other income (expense), net — Total $ (13.9 ) $ 0.7 $ — Six Months Ended June 30, 2017 Non-derivative financial instruments in net investment hedge relationships Amount of gain (loss) recognized in OCI on derivative (effective portion) Location of gain (loss) reclassified from AOCI into income (effective portion) Amount of gain (loss) recognized from AOCI on derivative (effective portion) Location of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing) EUR 800 million notes due 2024 $ (72.7 ) Other income (expense), net $ — Other income (expense), net $ — EUR 500 million notes due 2019 (34.6 ) Other income (expense), net — Other income (expense), net $ — Total $ (107.3 ) $ — $ — Six Months Ended June 30, 2017 Derivatives in fair value hedge relationships Amount of gain (loss) recognized in income on derivative Location of gain (loss)recognized in income Interest rate swaps $ 0.1 Interest expense, net Total $ 0.1 We expect net losses of approximately $1 million (pretax) recorded in AOCI as of June 30, 2018 , related to cash flow hedges, will be reclassified into earnings within the next 12 months. For derivatives designated in cash flow hedge relationships, the maximum length of time over which forecasted transactions are hedged as of June 30, 2018 , is approximately four years. The Effect of Fair Value and Cash Flow Hedge Accounting on the Unaudited Condensed Consolidated Statements of Operations (in millions) : Location and amount of gain (loss) recognized in income on fair value and cash flow hedging relationships (1) Three Months Ended June 30, 2018 Cost of goods sold Interest expense, net Total amount of income and expense line items presented in the unaudited condensed consolidated statement of operations in which the effects of fair value or cash flow hedges are recorded $ (1,739.1 ) $ (76.7 ) Gain (loss) on cash flow hedging relationships: Forward starting interest rate swaps Amount of gain (loss) reclassified from accumulated other comprehensive income into income — (0.7 ) Foreign currency forwards Amount of gain (loss) reclassified from accumulated other comprehensive income into income (0.3 ) — Location and amount of gain (loss) recognized in income on fair value and cash flow hedging relationships (1) Six Months Ended June 30, 2018 Cost of goods sold Interest expense, net Total amount of income and expense line items presented in the unaudited condensed consolidated statement of operations in which the effects of fair value or cash flow hedges are recorded $ (3,274.8 ) $ (159.9 ) Gain (loss) on cash flow hedging relationships: Forward starting interest rate swaps Amount of gain (loss) reclassified from accumulated other comprehensive income into income — (1.5 ) Foreign currency forwards Amount of gain (loss) reclassified from accumulated other comprehensive income into income (0.9 ) — (1) We had no outstanding fair value hedges during the first half of 2018.
Other Derivatives	The Effect of Derivatives Not Designated as Hedging Instruments on the Unaudited Condensed Consolidated Statements of Operations (in millions): Three Months Ended June 30, 2018 Derivatives not in hedging relationships Location of gain (loss) recognized in income on derivative Amount of gain (loss) recognized in income on derivative Commodity swaps Cost of goods sold $ 62.2 Total $ 62.2 Three Months Ended June 30, 2017 Derivatives not in hedging relationships Location of gain (loss) recognized in income on derivative Amount of gain (loss) recognized in income on derivative Commodity swaps Cost of goods sold $ (17.7 ) Total $ (17.7 ) Six Months Ended June 30, 2018 Derivatives not in hedging relationships Location of gain (loss) recognized in income on derivative Amount of gain (loss) recognized in income on derivative Commodity swaps Cost of goods sold $ (12.2 ) Total $ (12.2 ) Six Months Ended June 30, 2017 Derivatives not in hedging relationships Location of gain (loss) recognized in income on derivative Amount of gain (loss) recognized in income on derivative Commodity swaps Cost of goods sold $ 48.0 Foreign currency forwards Other income (expense), net (8.3 ) Total $ 39.7

Pension and Other Postretirem34

Pension and Other Postretirement Benefits (Tables)	6 Months Ended
	Jun. 30, 2018
Retirement Benefits [Abstract]
Net periodic pension and OPEB cost	Three Months Ended June 30, 2018 June 30, 2017 Pension OPEB Consolidated Pension OPEB Consolidated (In millions) Service cost: Service cost $ 1.4 $ 2.3 $ 3.7 $ 1.9 $ 2.8 $ 4.7 Other pension and postretirement costs (benefits), net: Interest cost $ 40.7 $ 6.6 $ 47.3 $ 50.8 $ 7.6 $ 58.4 Expected return on plan assets (58.9 ) — (58.9 ) (71.4 ) — (71.4 ) Amortization of prior service cost (benefit) 0.2 (0.1 ) 0.1 0.1 — 0.1 Amortization of net actuarial loss (gain) 2.0 (0.4 ) 1.6 3.6 — 3.6 Less: expected participant contributions — — — (0.1 ) — (0.1 ) Total other pension and postretirement cost (benefits), net $ (16.0 ) $ 6.1 $ (9.9 ) $ (17.0 ) $ 7.6 $ (9.4 ) Net periodic pension and OPEB cost (benefit) $ (14.6 ) $ 8.4 $ (6.2 ) $ (15.1 ) $ 10.4 $ (4.7 ) Six Months Ended June 30, 2018 June 30, 2017 Pension OPEB Consolidated Pension OPEB Consolidated (In millions) Service cost: Service cost $ 2.8 $ 4.6 $ 7.4 $ 3.7 $ 5.4 $ 9.1 Other pension and postretirement costs (benefits), net: Interest cost $ 81.9 $ 13.2 $ 95.1 $ 102.3 $ 15.2 $ 117.5 Expected return on plan assets (118.6 ) — (118.6 ) (142.1 ) 0.1 (142.0 ) Amortization of prior service cost (benefit) 0.4 (0.1 ) 0.3 0.3 — 0.3 Amortization of net actuarial loss (gain) 3.9 (0.7 ) 3.2 4.7 — 4.7 Curtailment and settlement loss (gain) 0.1 — 0.1 — (2.9 ) (2.9 ) Less: expected participant contributions — — — (0.3 ) — (0.3 ) Total other pension and postretirement cost (benefits), net $ (32.3 ) $ 12.4 $ (19.9 ) $ (35.1 ) $ 12.4 $ (22.7 ) Net periodic pension and OPEB cost (benefit) $ (29.5 ) $ 17.0 $ (12.5 ) $ (31.4 ) $ 17.8 $ (13.6 )

Supplemental Guarantor Informat

Supplemental Guarantor Information Supplemental (Tables)	6 Months Ended
	Jun. 30, 2018
Statement of Operations [Member]
Schedule of Supplemental Guarantor Information	MOLSON COORS BREWING COMPANY AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS (IN MILLIONS) (UNAUDITED) Three Months Ended June 30, 2018 Parent Subsidiary Guarantors Subsidiary Non Guarantors Eliminations Consolidated Sales $ — $ 2,874.7 $ 1,079.7 $ (133.9 ) $ 3,820.5 Excise taxes — (406.4 ) (328.9 ) — (735.3 ) Net sales — 2,468.3 750.8 (133.9 ) 3,085.2 Cost of goods sold (0.5 ) (1,385.0 ) (485.8 ) 132.2 (1,739.1 ) Gross profit (0.5 ) 1,083.3 265.0 (1.7 ) 1,346.1 Marketing, general and administrative expenses (60.9 ) (514.0 ) (171.5 ) 1.7 (744.7 ) Special items, net (0.4 ) (7.7 ) (2.4 ) — (10.5 ) Equity income (loss) in subsidiaries 261.9 79.2 57.4 (398.5 ) — Operating income (loss) 200.1 640.8 148.5 (398.5 ) 590.9 Interest income (expense), net (81.2 ) 84.8 (80.3 ) — (76.7 ) Other pension and postretirement benefits (costs), net — 1.6 8.3 — 9.9 Other income (expense), net 0.3 (80.5 ) 79.1 — (1.1 ) Income (loss) before income taxes 119.2 646.7 155.6 (398.5 ) 523.0 Income tax benefit (expense) 304.9 (385.1 ) (12.0 ) — (92.2 ) Net income (loss) 424.1 261.6 143.6 (398.5 ) 430.8 Net (income) loss attributable to noncontrolling interests — — (6.7 ) — (6.7 ) Net income (loss) attributable to MCBC $ 424.1 $ 261.6 $ 136.9 $ (398.5 ) $ 424.1 Comprehensive income (loss) attributable to MCBC $ 209.6 $ (30.7 ) $ (47.0 ) $ 77.7 $ 209.6 MOLSON COORS BREWING COMPANY AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS (IN MILLIONS) (UNAUDITED) Three Months Ended June 30, 2017 Parent Subsidiary Guarantors Subsidiary Non Guarantors Eliminations Consolidated Sales $ 8.3 $ 2,954.1 $ 973.2 $ (142.5 ) $ 3,793.1 Excise taxes — (411.5 ) (290.3 ) — (701.8 ) Net sales 8.3 2,542.6 682.9 (142.5 ) 3,091.3 Cost of goods sold (1.0 ) (1,421.4 ) (463.7 ) 130.6 (1,755.5 ) Gross profit 7.3 1,121.2 219.2 (11.9 ) 1,335.8 Marketing, general and administrative expenses (68.2 ) (558.4 ) (167.7 ) 11.9 (782.4 ) Special items, net (0.3 ) (13.7 ) (2.5 ) — (16.5 ) Equity income (loss) in subsidiaries 440.6 (132.2 ) 62.2 (370.6 ) — Operating income (loss) 379.4 416.9 111.2 (370.6 ) 536.9 Interest income (expense), net (74.4 ) 60.3 (75.1 ) — (89.2 ) Other pension and postretirement benefits (costs), net — (2.0 ) 11.4 — 9.4 Other income (expense), net — 94.9 (91.8 ) — 3.1 Income (loss) before income taxes 305.0 570.1 (44.3 ) (370.6 ) 460.2 Income tax benefit (expense) 24.9 (129.7 ) (20.4 ) — (125.2 ) Net income (loss) 329.9 440.4 (64.7 ) (370.6 ) 335.0 Net (income) loss attributable to noncontrolling interests — — (5.1 ) — (5.1 ) Net income (loss) attributable to MCBC $ 329.9 $ 440.4 $ (69.8 ) $ (370.6 ) $ 329.9 Comprehensive income (loss) attributable to MCBC $ 576.2 $ 730.7 $ 92.0 $ (822.7 ) $ 576.2 MOLSON COORS BREWING COMPANY AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS (IN MILLIONS) (UNAUDITED) Six Months Ended June 30, 2018 Parent Subsidiary Guarantors Subsidiary Non Guarantors Eliminations Consolidated Sales $ 4.9 $ 5,109.3 $ 1,822.3 $ (248.0 ) $ 6,688.5 Excise taxes — (707.8 ) (564.0 ) — (1,271.8 ) Net sales 4.9 4,401.5 1,258.3 (248.0 ) 5,416.7 Cost of goods sold (1.0 ) (2,626.7 ) (885.5 ) 238.4 (3,274.8 ) Gross profit 3.9 1,774.8 372.8 (9.6 ) 2,141.9 Marketing, general and administrative expenses (131.1 ) (977.3 ) (327.0 ) 9.6 (1,425.8 ) Special items, net (0.4 ) 313.7 (9.0 ) — 304.3 Equity income (loss) in subsidiaries 897.4 (79.6 ) 62.2 (880.0 ) — Operating income (loss) 769.8 1,031.6 99.0 (880.0 ) 1,020.4 Interest income (expense), net (166.4 ) 166.8 (160.3 ) — (159.9 ) Other pension and postretirement benefits (costs), net — 3.0 16.9 — 19.9 Other income (expense), net 0.1 (40.3 ) 40.2 — — Income (loss) before income taxes 603.5 1,161.1 (4.2 ) (880.0 ) 880.4 Income tax benefit (expense) 98.7 (263.2 ) (2.6 ) — (167.1 ) Net income (loss) 702.2 897.9 (6.8 ) (880.0 ) 713.3 Net (income) loss attributable to noncontrolling interests — — (11.1 ) — (11.1 ) Net income (loss) attributable to MCBC $ 702.2 $ 897.9 $ (17.9 ) $ (880.0 ) $ 702.2 Comprehensive income (loss) attributable to MCBC $ 536.8 $ 712.5 $ (94.3 ) $ (618.2 ) $ 536.8 MOLSON COORS BREWING COMPANY AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS (IN MILLIONS) (UNAUDITED) Six Months Ended June 30, 2017 Parent Subsidiary Guarantors Subsidiary Non Guarantors Eliminations Consolidated Sales $ 15.3 $ 5,330.7 $ 1,623.2 $ (262.3 ) $ 6,706.9 Excise taxes — (737.2 ) (429.7 ) — (1,166.9 ) Net sales 15.3 4,593.5 1,193.5 (262.3 ) 5,540.0 Cost of goods sold (1.0 ) (2,561.8 ) (805.1 ) 240.1 (3,127.8 ) Gross profit 14.3 2,031.7 388.4 (22.2 ) 2,412.2 Marketing, general and administrative expenses (135.9 ) (1,056.9 ) (317.1 ) 22.2 (1,487.7 ) Special items, net (0.8 ) (17.3 ) (5.1 ) — (23.2 ) Equity income (loss) in subsidiaries 786.6 (203.9 ) 82.0 (664.7 ) — Operating income (loss) 664.2 753.6 148.2 (664.7 ) 901.3 Interest income (expense), net (155.5 ) 119.2 (149.5 ) — (185.8 ) Other pension and postretirement benefits (costs), net — — 22.7 — 22.7 Other income (expense), net (8.2 ) 111.6 (100.5 ) — 2.9 Income (loss) before income taxes 500.5 984.4 (79.1 ) (664.7 ) 741.1 Income tax benefit (expense) 37.9 (197.8 ) (31.2 ) — (191.1 ) Net income (loss) 538.4 786.6 (110.3 ) (664.7 ) 550.0 Net (income) loss attributable to noncontrolling interests — — (11.6 ) — (11.6 ) Net income (loss) attributable to MCBC $ 538.4 $ 786.6 $ (121.9 ) $ (664.7 ) $ 538.4 Comprehensive income attributable to MCBC $ 857.4 $ 1,148.2 $ 82.8 $ (1,231.0 ) $ 857.4
Balance Sheet [Member]
Schedule of Supplemental Guarantor Information	MOLSON COORS BREWING COMPANY AND SUBSIDIARIES CONDENSED CONSOLIDATING BALANCE SHEET (IN MILLIONS) (UNAUDITED) As of June 30, 2018 Parent Subsidiary Guarantors Subsidiary Non Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 433.5 $ 68.6 $ 290.8 $ — $ 792.9 Accounts receivable, net — 530.8 454.1 — 984.9 Other receivables, net 44.5 57.0 29.6 — 131.1 Inventories, net — 477.0 160.5 — 637.5 Other current assets, net — 244.1 97.0 — 341.1 Intercompany accounts receivable — 1,942.6 67.9 (2,010.5 ) — Total current assets 478.0 3,320.1 1,099.9 (2,010.5 ) 2,887.5 Properties, net 18.0 3,428.8 1,152.6 — 4,599.4 Goodwill — 6,463.8 1,868.8 — 8,332.6 Other intangibles, net 7.0 11,979.6 2,031.8 — 14,018.4 Net investment in and advances to subsidiaries 25,417.0 4,262.6 4,598.4 (34,278.0 ) — Other assets 121.4 263.0 401.5 (62.9 ) 723.0 Total assets $ 26,041.4 $ 29,717.9 $ 11,153.0 $ (36,351.4 ) $ 30,560.9 Liabilities and equity Current liabilities: Accounts payable and other current liabilities $ 163.1 $ 1,825.5 $ 982.4 $ — $ 2,971.0 Current portion of long-term debt and short-term borrowings 1,082.2 304.5 24.3 — 1,411.0 Intercompany accounts payable 1,566.2 114.6 329.7 (2,010.5 ) — Total current liabilities 2,811.5 2,244.6 1,336.4 (2,010.5 ) 4,382.0 Long-term debt 8,279.9 1,138.9 36.3 — 9,455.1 Pension and postretirement benefits 3.1 811.8 13.2 — 828.1 Deferred tax liabilities — 927.1 906.8 (62.9 ) 1,771.0 Other liabilities 23.8 196.3 108.0 — 328.1 Intercompany notes payable 1,347.6 80.1 6,164.7 (7,592.4 ) — Total liabilities 12,465.9 5,398.8 8,565.4 (9,665.8 ) 16,764.3 MCBC stockholders' equity 13,576.6 30,482.6 3,795.4 (34,278.0 ) 13,576.6 Intercompany notes receivable (1.1 ) (6,163.5 ) (1,427.8 ) 7,592.4 — Total stockholders' equity 13,575.5 24,319.1 2,367.6 (26,685.6 ) 13,576.6 Noncontrolling interests — — 220.0 — 220.0 Total equity 13,575.5 24,319.1 2,587.6 (26,685.6 ) 13,796.6 Total liabilities and equity $ 26,041.4 $ 29,717.9 $ 11,153.0 $ (36,351.4 ) $ 30,560.9 MOLSON COORS BREWING COMPANY AND SUBSIDIARIES CONDENSED CONSOLIDATING BALANCE SHEET (IN MILLIONS) (UNAUDITED) As of December 31, 2017 Parent Subsidiary Guarantors Subsidiary Non Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 6.6 $ 140.9 $ 271.1 $ — $ 418.6 Accounts receivable, net — 424.8 309.0 — 733.8 Other receivables, net 90.4 45.2 32.6 — 168.2 Inventories, net — 457.7 133.8 — 591.5 Other current assets, net 9.6 184.8 83.2 — 277.6 Intercompany accounts receivable — 2,303.2 65.6 (2,368.8 ) — Total current assets 106.6 3,556.6 895.3 (2,368.8 ) 2,189.7 Properties, net 16.8 3,509.8 1,147.1 — 4,673.7 Goodwill — 6,487.8 1,917.7 — 8,405.5 Other intangibles, net 8.0 12,183.8 2,104.7 — 14,296.5 Net investment in and advances to subsidiaries 26,443.9 4,297.4 4,683.1 (35,424.4 ) — Other assets 101.7 253.7 387.2 (61.1 ) 681.5 Total assets $ 26,677.0 $ 30,289.1 $ 11,135.1 $ (37,854.3 ) $ 30,246.9 Liabilities and equity Current liabilities: Accounts payable and other current liabilities $ 180.4 $ 1,648.9 $ 855.2 $ — $ 2,684.5 Current portion of long-term debt and short-term borrowings 379.0 317.8 18.0 — 714.8 Intercompany accounts payable 2,131.8 102.8 134.2 (2,368.8 ) — Total current liabilities 2,691.2 2,069.5 1,007.4 (2,368.8 ) 3,399.3 Long-term debt 9,399.7 1,189.5 9.5 — 10,598.7 Pension and postretirement benefits 2.9 832.1 13.5 — 848.5 Deferred tax liabilities — 864.7 845.0 (61.1 ) 1,648.6 Other liabilities 10.7 200.1 106.0 — 316.8 Intercompany notes payable 1,347.6 227.0 6,370.5 (7,945.1 ) — Total liabilities 13,452.1 5,382.9 8,351.9 (10,375.0 ) 16,811.9 MCBC stockholders' equity 13,226.1 31,275.5 4,148.9 (35,424.4 ) 13,226.1 Intercompany notes receivable (1.2 ) (6,369.3 ) (1,574.6 ) 7,945.1 — Total stockholders' equity 13,224.9 24,906.2 2,574.3 (27,479.3 ) 13,226.1 Noncontrolling interests — — 208.9 — 208.9 Total equity 13,224.9 24,906.2 2,783.2 (27,479.3 ) 13,435.0 Total liabilities and equity $ 26,677.0 $ 30,289.1 $ 11,135.1 $ (37,854.3 ) $ 30,246.9
Statement of Cash Flows [Member]
Schedule of Supplemental Guarantor Information	MOLSON COORS BREWING COMPANY AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS (IN MILLIONS) (UNAUDITED) Six Months Ended June 30, 2018 Parent Subsidiary Guarantors Subsidiary Non Guarantors Eliminations Consolidated Net cash provided by (used in) operating activities $ 987.7 $ 368.8 $ 78.1 $ (136.8 ) $ 1,297.8 CASH FLOWS FROM INVESTING ACTIVITIES: Additions to properties (7.0 ) (256.8 ) (87.3 ) — (351.1 ) Proceeds from sales of properties and other assets — 1.7 2.7 — 4.4 Other — (0.7 ) (49.8 ) — (50.5 ) Net intercompany investing activity 18.3 (20.8 ) 177.8 (175.3 ) — Net cash provided by (used in) investing activities 11.3 (276.6 ) 43.4 (175.3 ) (397.2 ) CASH FLOWS FROM FINANCING ACTIVITIES: Exercise of stock options under equity compensation plans 6.3 — — — 6.3 Dividends paid (162.5 ) — (151.3 ) 136.8 (177.0 ) Payments on debt and borrowings — (0.4 ) (2.0 ) — (2.4 ) Net proceeds from (payments on) revolving credit facilities and commercial paper (378.4 ) — 2.3 — (376.1 ) Change in overdraft balances and other (4.9 ) (6.9 ) 36.3 — 24.5 Net intercompany financing activity (32.6 ) (157.5 ) 14.8 175.3 — Net cash provided by (used in) financing activities (572.1 ) (164.8 ) (99.9 ) 312.1 (524.7 ) CASH AND CASH EQUIVALENTS: Net increase (decrease) in cash and cash equivalents 426.9 (72.6 ) 21.6 — 375.9 Effect of foreign exchange rate changes on cash and cash equivalents — 0.3 (1.9 ) — (1.6 ) Balance at beginning of year 6.6 140.9 271.1 — 418.6 Balance at end of period $ 433.5 $ 68.6 $ 290.8 $ — $ 792.9 MOLSON COORS BREWING COMPANY AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS (IN MILLIONS) (UNAUDITED) Six Months Ended June 30, 2017 Parent Subsidiary Guarantors Subsidiary Non Guarantors Eliminations Consolidated Net cash provided by (used in) operating activities $ 496.0 $ 471.3 $ 111.8 $ (260.6 ) $ 818.5 CASH FLOWS FROM INVESTING ACTIVITIES: Additions to properties (10.3 ) (275.3 ) (68.4 ) — (354.0 ) Proceeds from sales of properties and other assets — 2.2 43.9 — 46.1 Other — — 6.0 — 6.0 Net intercompany investing activity — (70.8 ) — 70.8 — Net cash provided by (used in) investing activities (10.3 ) (343.9 ) (18.5 ) 70.8 (301.9 ) CASH FLOWS FROM FINANCING ACTIVITIES: Exercise of stock options under equity compensation plans 1.1 — — — 1.1 Dividends paid (161.8 ) (150.5 ) (124.9 ) 260.6 (176.6 ) Payments on debt and borrowings (2,200.0 ) — (1.5 ) — (2,201.5 ) Proceeds on debt and borrowings 1,536.0 — — — 1,536.0 Net proceeds from (payments on) revolving credit facilities and commercial paper 280.3 — 1.7 — 282.0 Change in overdraft balances and other (17.2 ) (10.6 ) (6.4 ) — (34.2 ) Net intercompany financing activity — — 70.8 (70.8 ) — Net cash provided by (used in) financing activities (561.6 ) (161.1 ) (60.3 ) 189.8 (593.2 ) CASH AND CASH EQUIVALENTS: Net increase (decrease) in cash and cash equivalents (75.9 ) (33.7 ) 33.0 — (76.6 ) Effect of foreign exchange rate changes on cash and cash equivalents — 1.5 17.1 — 18.6 Balance at beginning of year 147.3 141.5 272.1 — 560.9 Balance at end of period $ 71.4 $ 109.3 $ 322.2 $ — $ 502.9

Basis of Presentation and Sum36

Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation and Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended					6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2018	Jun. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Cost of Goods Sold	$ (1,739.1)			$ (1,755.5)		$ (3,274.8)	$ (3,127.8)
Capital Expenditures Incurred but Not yet Paid						153	163.1
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent				1.6			1
Selling, General and Administrative Expense	(744.7)			(782.4)		(1,425.8)	(1,487.7)
Special items, net	(10.5)			(16.5)		304.3	(23.2)
Income tax benefit (expense)	(92.2)			(125.2)		(167.1)	(191.1)
Net income (loss) attributable to Molson Coors Brewing Company	$ 424.1			329.9		$ 702.2	$ 538.4
Restatement Adjustment [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Cost of Goods Sold		$ (1,514.7)	$ (1,584.1)	(1,750.7)	$ (1,367.7)
Selling, General and Administrative Expense		(775.9)	(779.2)	(777.8)	(699.5)
Special items, net		(3.7)	(4.1)	(16.5)	(3.8)
Income tax benefit (expense)		391.7	(147.4)	(125.2)	(65.9)
Net income (loss) attributable to Molson Coors Brewing Company		$ 588.8	$ 287	$ 329.9	$ 208.5
Earnings Per Share, Basic		$ 2.73	$ 1.33	$ 1.53	$ 0.97
Earnings Per Share, Diluted		$ 2.72	$ 1.33	$ 1.52	$ 0.96
Previously Reported [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Cost of Goods Sold		$ (1,520.3)	$ (1,589.6)	$ (1,756.1)	$ (1,372.9)
Selling, General and Administrative Expense		(779.4)	(782.8)	(781.2)	(702.8)
Special items, net		(3.7)	(4.1)	(16.5)	(3.8)
Income tax benefit (expense)		392.4	(145.3)	(123)	(64.6)
Net income (loss) attributable to Molson Coors Brewing Company		$ 580.4	$ 280	$ 323.3	$ 201.3
Earnings Per Share, Basic		$ 2.69	$ 1.30	$ 1.50	$ 0.94
Earnings Per Share, Diluted		$ 2.68	$ 1.29	$ 1.49	$ 0.93

New Accounting Pronouncements R

New Accounting Pronouncements Revenue Recognition (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2018	Dec. 31, 2017
Sales	$ 3,820.5	$ 3,793.1	$ 6,688.5	$ 6,706.9
Excise and Sales Taxes	(735.3)	(701.8)	(1,271.8)	(1,166.9)
Net Sales	3,085.2	3,091.3	5,416.7	5,540
Cost of Goods Sold	(1,739.1)	(1,755.5)	(3,274.8)	(3,127.8)
Gross Profit	1,346.1	1,335.8	2,141.9	2,412.2
Selling, General and Administrative Expense	(744.7)	(782.4)	(1,425.8)	(1,487.7)
Special items	(10.5)	(16.5)	304.3	(23.2)
Operating Income (Loss)	590.9	536.9	1,020.4	901.3
Interest income (expense), net	(76.7)	(89.2)	(159.9)	(185.8)
Other pension and postretirement benefits (costs), net		9.4	19.9	22.7
Other pension and postretirement benefits (costs), net	9.9	9.4	19.9	22.7
Other income (expense), net	(1.1)	3.1	0	2.9
Income (loss) before income taxes	523	460.2	880.4	741.1
Income tax benefit (expense)	(92.2)	(125.2)	(167.1)	(191.1)
Income (Loss) Net of Tax, Including Portion Attributable to Noncontrolling Interest	430.8	335	713.3	550
Net income (loss) including noncontrolling interests	430.8	335	713.3	550
Net Income (Loss) Attributable to Noncontrolling Interest	(6.7)	(5.1)	(11.1)	(11.6)
Net income (loss) attributable to Molson Coors Brewing Company	$ 424.1	$ 329.9	$ 702.2	$ 538.4
Income (Loss) from Continuing Operations, Per Basic Share	$ 1.96	$ 1.53	$ 3.25	$ 2.50
Income (Loss) from Continuing Operations, Per Diluted Share	$ 1.96	$ 1.52	$ 3.24	$ 2.49
Accounts receivable, net	$ 984.9		$ 984.9			$ 733.8
Other current assets, net	341.1		341.1			277.6
Accounts payable and other current liabilities	2,971		2,971			2,684.5
Deferred tax liabilities	1,771		1,771			1,648.6
Retained earnings	7,703.5		7,703.5			7,206.1
Accumulated Other Comprehensive Income (Loss), Net of Tax	(1,025.4)		(1,025.4)			$ (860)
Initial Application Period Cumulative Effect Transition for Accounting Standards Update 2014-09			(27.8)
Calculated Under Revenue Guidance In Effect Before Topic 606 Member [Member]
Sales	3,845.2		6,729.3
Excise and Sales Taxes	(735.3)		(1,271.8)
Net Sales	3,109.9		5,457.5
Cost of Goods Sold	(1,739.1)		(3,274.8)
Gross Profit	1,370.8		2,182.7
Selling, General and Administrative Expense	(757.7)		(1,451.9)
Special items	(10.5)		304.3
Operating Income (Loss)	602.6		1,035.1
Interest income (expense), net	(75.8)		(158.2)
Other pension and postretirement benefits (costs), net	9.9		19.9
Other income (expense), net	(1.1)		0
Income (loss) before income taxes	535.6		896.8
Income tax benefit (expense)	(94.4)		(170.1)
Income (Loss) Net of Tax, Including Portion Attributable to Noncontrolling Interest	441.2		726.7
Net Income (Loss) Attributable to Noncontrolling Interest	(6.7)		(11.1)
Net income (loss) attributable to Molson Coors Brewing Company	$ 434.5		$ 715.6
Income (Loss) from Continuing Operations, Per Basic Share	$ 2.01		$ 3.31
Income (Loss) from Continuing Operations, Per Diluted Share	$ 2.01		$ 3.30
Accounts receivable, net	$ 984.7		$ 984.7
Other current assets, net	336.8		336.8
Accounts payable and other current liabilities	2,913.5		2,913.5
Deferred tax liabilities	1,783		1,783
Accumulated Other Comprehensive Income (Loss), Net of Tax	(1,025.6)		(1,025.6)
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Retained earnings	7,744.7		7,744.7
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Restatement Adjustment [Member]
Sales	(24.7)		(40.8)
Excise and Sales Taxes	0		0
Net Sales	(24.7)		(40.8)
Cost of Goods Sold	0		0
Gross Profit	(24.7)		(40.8)
Selling, General and Administrative Expense	13		(26.1)
Special items	0		0
Operating Income (Loss)	(11.7)		(14.7)
Interest income (expense), net	(0.9)		(1.7)
Other pension and postretirement benefits (costs), net	0		0
Other income (expense), net	0		0
Income (loss) before income taxes	(12.6)		(16.4)
Income tax benefit (expense)	2.2		(3)
Income (Loss) Net of Tax, Including Portion Attributable to Noncontrolling Interest	(10.4)		(13.4)
Net Income (Loss) Attributable to Noncontrolling Interest	0		0
Net income (loss) attributable to Molson Coors Brewing Company	$ (10.4)		$ (13.4)
Income (Loss) from Continuing Operations, Per Basic Share	$ (0.05)		$ (0.06)
Income (Loss) from Continuing Operations, Per Diluted Share	$ (0.05)		$ (0.06)
Accounts receivable, net	$ 0.2		$ 0.2
Other current assets, net	4.3		4.3
Accounts payable and other current liabilities	57.5		57.5
Deferred tax liabilities	(12)		(12)
Retained earnings	(41.2)		(41.2)
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 0.2		0.2
Retained earnings
Net income (loss) including noncontrolling interests			702.2	$ 538.4
Initial Application Period Cumulative Effect Transition for Accounting Standards Update 2014-09			$ (27.8)
Forecast [Member] | Minimum [Member]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification					$ 60
Forecast [Member] | Maximum [Member]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification					$ 70

New Accounting Pronouncements P

New Accounting Pronouncements Pension Restatement (Details) - USD ($) $ in Millions	3 Months Ended					6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2018	Jun. 30, 2017
Cost of Goods Sold	$ (1,739.1)			$ (1,755.5)		$ (3,274.8)	$ (3,127.8)
Selling, General and Administrative Expense	(744.7)			(782.4)		(1,425.8)	(1,487.7)
Special items	(10.5)			(16.5)		304.3	(23.2)
Operating Income (Loss)	$ 590.9			536.9		1,020.4	901.3
Other pension and postretirement benefits (costs), net				9.4		$ 19.9	22.7
Restatement Adjustment [Member]
Cost of Goods Sold		$ (1,514.7)	$ (1,584.1)	(1,750.7)	$ (1,367.7)
Selling, General and Administrative Expense		(775.9)	(779.2)	(777.8)	(699.5)
Special items		$ (3.7)	$ (4.1)	(16.5)	$ (3.8)
Restatement Adjustment [Member] | Corporate [Member]
Cost of Goods Sold				0			0
Selling, General and Administrative Expense				0			0
Special items							0
Other pension and postretirement benefits (costs), net				9.4			22.7
Income (loss) before income taxes				9.4			22.7
Restatement Adjustment [Member] | Europe [Member]
Cost of Goods Sold				6.7			13.3
Selling, General and Administrative Expense				4.6			9.3
Special items							0
Other pension and postretirement benefits (costs), net				0			0
Income (loss) before income taxes				(11.3)			(22.6)
Restatement Adjustment [Member] | UNITED STATES
Cost of Goods Sold				(1.8)			(3.6)
Selling, General and Administrative Expense				0			0.8
Special items							0
Other pension and postretirement benefits (costs), net				0			0
Income (loss) before income taxes				1.8			2.8
Restatement Adjustment [Member] | Canada [Member]
Cost of Goods Sold				(0.1)			(0.3)
Selling, General and Administrative Expense				0			0.3
Special items							2.9
Other pension and postretirement benefits (costs), net				0			0
Income (loss) before income taxes				0.1			(2.9)
Previous Accounting Guidance [Member]
Cost of Goods Sold				(1,750.7)			(3,118.4)
Selling, General and Administrative Expense				(777.8)			(1,477.3)
Special items							(20.3)
Operating Income (Loss)				546.3			924
Other pension and postretirement benefits (costs), net				$ 0			$ 0

Segment Reporting Net Sales (De

Segment Reporting Net Sales (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting
Net Sales	$ 3,085.2	$ 3,091.3	$ 5,416.7	$ 5,540
Maximum percentage of sales accounted for by a single customer (as a percent)			10.00%
UNITED STATES
Segment Reporting
Net Sales	2,072.5	2,138.9	$ 3,720.3	3,888.8
Canada [Member]
Segment Reporting
Net Sales	397.4	407.6	681.2	698.7
Europe [Member]
Segment Reporting
Net Sales	586.1	524.7	960.4	906.3
International [Member]
Segment Reporting
Net Sales	67.9	65.1	125.4	126.9
Corporate [Member]
Segment Reporting
Net Sales	0.3	0.3	0.5	0.6
Intersegment sales elimination
Segment Reporting
Net Sales	$ (39)	$ (45.3)	$ (71.1)	$ (81.3)

Segment Reporting Income (Loss)

Segment Reporting Income (Loss) From Continuing Operations (Details) $ in Millions, $ in Millions	3 Months Ended					6 Months Ended
	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Jun. 30, 2017USD ($)	Mar. 31, 2017CAD ($)	Mar. 31, 2017USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)
Segment Reporting
Income (loss) before income taxes	$ 523		$ 460.2			$ 880.4	$ 741.1
Other income (expense), net	(1.1)		3.1			0	2.9
Loss Contingency Accrual, Period Increase (Decrease)					$ (50)
Unrealized Gain (Loss) on Commodity Contracts	45.1		(23.4)			(39.6)	39.7
UNITED STATES
Segment Reporting
Income (loss) before income taxes	445.5		486.5			707.2	803.1
Canada [Member]
Segment Reporting
Income (loss) before income taxes	61.3		69.7			70.4	90.6
Europe [Member]
Segment Reporting
Income (loss) before income taxes	86.8		69.9			56.9	96.9
Europe [Member] | Agrokor [Member]
Segment Reporting
Provision for Doubtful Accounts	4				11
International [Member]
Segment Reporting
Income (loss) before income taxes	1.3		(7.7)			5	(6.2)
Corporate [Member]
Segment Reporting
Income (loss) before income taxes	(71.9)		(158.2)			40.9	(243.3)
Purchase Price Adjustment [Member] | Affiliated Entity [Member]
Segment Reporting
Other income (expense), net				$ 10.6	$ 8.1
Purchase Price Adjustment [Member]
Segment Reporting
AdjustmentAmount	$ 0	$ 328	$ 0			$ 328	$ 0

Segment Reporting Total Assets

Segment Reporting Total Assets (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Segment Reporting
Total assets	$ 30,560.9	$ 30,246.9
UNITED STATES
Segment Reporting
Total assets	19,318.7	19,353.6
Canada [Member]
Segment Reporting
Total assets	4,731.5	4,835.7
Europe [Member]
Segment Reporting
Total assets	5,619.5	5,522
International [Member]
Segment Reporting
Total assets	279.4	294.8
Corporate [Member]
Segment Reporting
Total assets	$ 611.8	$ 240.8

Investments Variable Interest E

Investments Variable Interest Entity (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Grolsch
Variable Interest Entity
Total Assets	$ 4.7	$ 4.8
Total Liabilities	0.3	0.2
Cobra
Variable Interest Entity
Total Assets	17.1	20.2
Total Liabilities	0.8	2.1
Rocky Mountain Metal Container [Member]
Variable Interest Entity
Total Assets	78.2	74.4
Total Liabilities	5	4.4
Rocky Mountain Bottle Company [Member]
Variable Interest Entity
Total Assets	71.3	56.2
Total Liabilities	$ 4.2	$ 4.6

Investments Narrative (Details)

Investments Narrative (Details) $ in Millions	Jun. 30, 2018USD ($)VIE	Dec. 31, 2017USD ($)VIE
Schedule of Equity Method Investments [Line Items]
Number of Variable Interest Entities with Debt | VIE	0	0
BRI BDL [Member]
Schedule of Equity Method Investments [Line Items]
Guarantees, Fair Value Disclosure | $	$ 55.4	$ 38.1

Share-Based Payments Compensati

Share-Based Payments Compensation Expense (Details) - Options and Sosars [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense (in dollars)	$ 10.3	$ 16.1	$ 25.1	$ 31.6
Tax benefit (in dollars)	(2.1)	(5.5)	(3.7)	(10.8)
After-tax compensation expense (in dollars)	$ 8.2	$ 10.6	$ 21.4	$ 20.8

Share-Based Payments Non-vested

Share-Based Payments Non-vested (Details) - $ / shares shares in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
RSUs and DSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested awards outstanding at the beginning of the period (in shares)	1
Granted (in shares)	0.4
Vested (in shares)	(0.3)
Forfeited (in shares)	0
Non-vested awards outstanding at the end of the period (in shares)	1.1
Non-vested, weighted-average grant date fair value at the beginning of the period (in dollars per unit)	$ 95.80
Granted, weighted-average grant date fair value (in dollars per unit)	73
Vested, weighted-average grant date fair value (in dollars per unit)	90.30
Forfeited, weighted-average grant date fair value (in dollars per unit)	0
Non-vested, weighted-average grant date fair value at the end of the period (in dollars per unit)	89.16
PSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument Other than Option, Nonvested, Intrinsic Value	$ 86.31
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested awards outstanding at the beginning of the period (in shares)	0.4
Granted (in shares)	0.2
Vested (in shares)	(0.1)
Forfeited (in shares)	0
Non-vested awards outstanding at the end of the period (in shares)	0.5
Non-vested, weighted-average grant date fair value at the beginning of the period (in dollars per unit)	$ 89.57
Granted, weighted-average grant date fair value (in dollars per unit)	78.30	$ 97.13
Vested, weighted-average grant date fair value (in dollars per unit)	75.15
Forfeited, weighted-average grant date fair value (in dollars per unit)	0
Non-vested, weighted-average grant date fair value at the end of the period (in dollars per unit)	$ 86.91

Share-Based Payments Stock Opti

Share-Based Payments Stock Options (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds and Excess Tax Benefit from Share-based Compensation	$ 5.9	$ 19.2
Options and Sosars [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at the beginning of the period (in shares)	1.5
Granted (in shares)	0.2
Exercised (in shares)	(0.2)
Forfeited (in shares)	0
Outstanding at the end of the period (in shares)	1.5		1.5
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expected to Vest, Outstanding, Number	0.3
Exercisable (in shares)	1.2
Weighted-average exercise price of shares outstanding, beginning of the period (in dollars per share)	$ 63.60
Weighted-average exercise price of shares granted (in dollars per share)	78.79
Weighted-average exercise price of shares exercised (in dollars per share)	50.28
Weighted-average exercise price of shares forfeited (in dollars per share)	0
Weighted-average exercise price of shares outstanding, end of the period (in dollars per share)	67.04		$ 63.60
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expected to Vest, Outstanding, Weighted Average Exercise Price	85.32
Weighted-average exercise price of shares exercisable (in dollars per share)	$ 61.35
Weighted-average remaining contractual life, outstanding (in years)	4 years 11 months 5 days		4 years 6 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	8 years 9 months 5 days
Weighted-average remaining contractual life, exercisable (in years)	3 years 8 months 24 days
Aggregate intrinsic value of shares outstanding (in dollars)	$ 31.3
Aggregate intrinsic value of shares outstanding (in dollars)	14.2		$ 31.3
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expected to Vest, Outstanding, Aggregate Intrinsic Value	0
Aggregate intrinsic value of shares exercisable (in dollars)	$ 14.2

Share-Based Payments Weighted A

Share-Based Payments Weighted Average Assumptions (Details) - $ / shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Options and Sosars [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate (as a percent)	2.65%	2.04%
Dividend yield (as a percent)	2.08%	1.64%
Weighted-average volatility (as a percent)	22.81%	22.52%
Expected term	5 years 3 months 28 days	5 years 1 month 21 days
Weighted-average fair market value	$ 15.44	$ 18.66
Options and Sosars [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate (percent)	22.36%	22.40%
Options and Sosars [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate (percent)	24.14%	22.88%
PSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate (as a percent)	2.34%	1.59%
Dividend yield (as a percent)	2.08%	1.64%
Weighted-average volatility (as a percent)	22.76%	24.24%
Expected term	2 years 9 months 25 days	2 years 9 months 22 days
Weighted-average fair market value	$ 78.30	$ 97.13
PSUs [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate (percent)	13.03%	13.71%
PSUs [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate (percent)	81.87%	80.59%

Share-Based Payments Narrative

Share-Based Payments Narrative (Details) shares in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2018USD ($)planshares	Jun. 30, 2017USD ($)
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)	$ 73.3
Weighted-average period over which compensation expense is expected to be recognized (in years)	2 years 1 month
Proceeds from Stock Plans	$ 6.3	$ 1.1
Proceeds and Excess Tax Benefit from Share-based Compensation	$ 5.9	19.2
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) | shares	3.4
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	$ 5.1	5.3
Proceeds from Stock Plans	$ 6.3	$ 1.1
MCBC Incentive Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of incentive compensation plans | plan	1

Special Items Summary Special I

Special Items Summary Special Items (Details) - USD ($) $ in Millions	Oct. 11, 2016	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2018	Jun. 30, 2017
Restructuring Cost and Reserve [Line Items]
Special items		$ 10.5		$ 16.5		$ (304.3)	$ 23.2
Other Employee-Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Special items		1		0.4		4.9	1.3
Purchase Price Adjustment [Member]
Restructuring Cost and Reserve [Line Items]
Unusual or Infrequent Item, Gain, Gross		0	$ (328)	0		(328)	0
UNITED STATES | Asset Abandonment [Member]
Restructuring Cost and Reserve [Line Items]
Special items		1.3		12.4		2.8	14.4
Canada [Member] | Asset Abandonment [Member]
Restructuring Cost and Reserve [Line Items]
Special items		6		1.1		12.1	2.3
Europe [Member] | Asset Abandonment [Member]
Restructuring Cost and Reserve [Line Items]
Special items		1		2.6		2.7	5.2
International [Member] | China Business [Member]
Restructuring Cost and Reserve [Line Items]
Special items		$ 1.2		$ 0		$ 1.2	$ 0
MillerCoors
Restructuring Cost and Reserve [Line Items]
Payments to Acquire Businesses, Gross	$ 12,000
Finite-Lived Intangible Assets, Purchase Accounting Adjustments					$ 70
CashReceivedforAdjustmentAmount			330
AdjustmentAmount			$ 328

Special Items Severance and Oth

Special Items Severance and Other Employee Related (Details) $ in Millions	6 Months Ended
	Jun. 30, 2018USD ($)employee	Jun. 30, 2017USD ($)
Severance and other employee-related costs [Member]
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	$ 6.9	$ 14.7
Charges incurred and changes in estimates	4.9	1.3
Payments made	(4.6)	(6.7)
Foreign currency and other adjustments	(0.1)	0.2
Ending balance of restructuring accruals	7.1	9.5
Severance and other employee-related costs [Member] | UNITED STATES
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	0.6	5.1
Charges incurred and changes in estimates	2	0.7
Payments made	(0.6)	(4.6)
Foreign currency and other adjustments	0	0
Ending balance of restructuring accruals	2	1.2
Severance and other employee-related costs [Member] | Canada [Member]
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	4.3	5.9
Charges incurred and changes in estimates	(0.8)	(0.1)
Payments made	(1.5)	(0.8)
Foreign currency and other adjustments	(0.1)	0.1
Ending balance of restructuring accruals	1.9	5.1
Severance and other employee-related costs [Member] | Europe [Member]
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	1.8	2.8
Charges incurred and changes in estimates	2.1	0
Payments made	(2.3)	(0.5)
Foreign currency and other adjustments	0	0.1
Ending balance of restructuring accruals	1.6	2.4
Severance and other employee-related costs [Member] | International [Member]
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	0.2	0.2
Charges incurred and changes in estimates	1.6	0.6
Payments made	(0.2)	(0.2)
Foreign currency and other adjustments	0	0
Ending balance of restructuring accruals	1.6	0.6
Severance and other employee-related costs [Member] | Corporate [Member]
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	0	0.7
Charges incurred and changes in estimates	0	0.1
Payments made	0	(0.6)
Foreign currency and other adjustments	0	0
Ending balance of restructuring accruals	$ 0	$ 0.2
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | employee	450
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Payment of severance obligations, term	12 months
MillerCoors
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | employee	106

Income Tax Schedule of Effectiv

Income Tax Schedule of Effective Tax Rate (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Schedule of Effective Tax Rate [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%				35.00%
Effective tax rate (as a percent)	18.00%	27.00%	19.00%	26.00%
Net discrete tax expense (benefit)	$ 1.2	$ 1.3	$ 4.3	$ 9.7

Goodwill (Details)

Goodwill (Details) $ in Millions	6 Months Ended
	Jun. 30, 2018USD ($)
Goodwill activity:
Balance at beginning of year	$ 8,405.5
Business acquisition and disposition	9.8
Goodwill, Purchase Accounting Adjustments	(2.9)
Foreign currency translation	(79.8)
Balance at end of year	8,332.6
UNITED STATES
Goodwill activity:
Balance at beginning of year	5,928.5
Business acquisition and disposition	0
Goodwill, Purchase Accounting Adjustments	0
Foreign currency translation	0
Balance at end of year	5,928.5
Canada [Member]
Goodwill activity:
Balance at beginning of year	932.1
Business acquisition and disposition	0
Goodwill, Purchase Accounting Adjustments	(2.9)
Foreign currency translation	(39.7)
Balance at end of year	889.5
Europe [Member]
Goodwill activity:
Balance at beginning of year	1,538
Business acquisition and disposition	9.8
Goodwill, Purchase Accounting Adjustments	0
Foreign currency translation	(39.6)
Balance at end of year	1,508.2
International [Member]
Goodwill activity:
Balance at beginning of year	6.9
Business acquisition and disposition	0
Goodwill, Purchase Accounting Adjustments	0
Foreign currency translation	(0.5)
Balance at end of year	$ 6.4

Goodwill and Intangible Asset53

Goodwill and Intangible Assets Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2016	Dec. 31, 2017
Details of intangible assets, other than goodwill:
Goodwill	$ 8,332.6		$ 8,332.6			$ 8,405.5
Amortization of Intangible Assets	56.2	$ 55.1	112.8	$ 110.3
Restructuring charges	10.5	$ 16.5	(304.3)	$ 23.2
Intangible assets subject to amortization:
Total Gross	14,737.3		14,737.3			14,958.8
Accumulated amortization	(718.9)		(718.9)			(662.3)
Total Net	14,018.4		14,018.4			14,296.5
Brands [Member]
Intangible assets subject to amortization:
Finite-Lived Intangible Assets, Gross	5,089.2		5,089.2			5,215.3
Accumulated amortization	(595.1)		(595.1)			(516)
Net	4,494.1		4,494.1			4,699.3
Indefinite-lived intangible assets	8,184.9		$ 8,184.9			8,216.6
Brands [Member] | Minimum [Member]
Intangible assets subject to amortization:
Useful life			10 years		10 years
Brands [Member] | Maximum [Member]
Intangible assets subject to amortization:
Useful life			50 years		50 years
License agreements and distribution rights
Intangible assets subject to amortization:
Finite-Lived Intangible Assets, Gross	222.8		$ 222.8			236.3
Accumulated amortization	(95)		(95)			(103.9)
Net	127.8		$ 127.8			132.4
License agreements and distribution rights | Minimum [Member]
Intangible assets subject to amortization:
Useful life			15 years		15 years
License agreements and distribution rights | Maximum [Member]
Intangible assets subject to amortization:
Useful life			28 years		28 years
Distribution Networks [Member]
Intangible assets subject to amortization:
Indefinite-lived intangible assets	770.3		$ 770.3			804.7
Other Intangible Assets [Member]
Intangible assets subject to amortization:
Finite-Lived Intangible Assets, Gross	132.5		132.5			148.3
Accumulated amortization	(28.8)		(28.8)			(42.4)
Net	103.7		103.7			105.9
Indefinite-lived intangible assets	337.6		$ 337.6			337.6
Other Intangible Assets [Member] | Minimum [Member]
Intangible assets subject to amortization:
Useful life			2 years		2 years
Other Intangible Assets [Member] | Maximum [Member]
Intangible assets subject to amortization:
Useful life			40 years		40 years
Canada [Member]
Details of intangible assets, other than goodwill:
Goodwill	889.5		$ 889.5			932.1
Europe [Member]
Details of intangible assets, other than goodwill:
Goodwill	$ 1,508.2		$ 1,508.2			$ 1,538

Goodwill and Intangible Asset54

Goodwill and Intangible Assets Amortization Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Estimated amortization expense of finite-lived intangible assets
2018 - remaining	$ 111.5		$ 111.5
2,019	222.8		222.8
2,020	221.8		221.8
2,021	215.5		215.5
2,022	210.9		210.9
Amortization expense of intangible assets	$ 56.2	$ 55.1	$ 112.8	$ 110.3

Debt Schedule (Details)

Debt Schedule (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017	May 03, 2012
Debt Instrument [Line Items]
Less: unamortized debt discounts	$ (70)	$ (75.9)
Total long-term debt (including current portion)	10,852.7	10,927.1
Current portion of long-term debt	(1,397.6)	(328.4)
Total long-term debt	9,455.1	10,598.7
Commercial Paper	0	379
Other short-term borrowings	13.4	7.4
Current portion of long-term debt and short-term borrowings	1,411	714.8
Other Long-Term Debt [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	48.7	22.1
Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount			$ 1,900
Senior Notes [Member] | CAD 400 million 2.25% Notes Due 2018 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	304.6	318.2
Senior Notes [Member] | CAD 500 million 2.75% Notes Due 2020 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	380.7	397.7
Senior Notes [Member] | CAD 500 million 2.84% notes due 2023 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	380.7	397.7
Senior Notes [Member] | CAD 500 million 3.44% notes due 2026 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	380.7	397.7
Senior Notes [Member] | $500 million 1.45% notes due 2019 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	500	500
Senior Notes [Member] | $500 million 1.90% notes due 2019 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	499.1	498.5
Senior Notes [Member] | $500 million 2.25% notes due 2020 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	498.6	498.2
Senior Notes [Member] | $1.0 billion 2.10% notes due 2021 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,000	1,000
Senior Notes [Member] | $500 million 3.5% notes due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	510.7	512.2
Senior Notes [Member] | $2.0 billion 3.0% notes due 2026 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	2,000	2,000
Senior Notes [Member] | $1.1 billion 5.0% notes due 2042 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,100	1,100
Senior Notes [Member] | $1.8 billion 4.2% notes due 2046 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,800	1,800
Senior Notes [Member] | EUR 500 million notes due 2019
Debt Instrument [Line Items]
Long-term debt, carrying amount	584.2	600.3
Senior Notes [Member] | EUR 800 million 1.25% notes due 2024 [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount	$ 934.7	$ 960.4

Debt Schedule (Narrative) (Deta

Debt Schedule (Narrative) (Details) € in Millions, $ in Millions	Oct. 11, 2016	Jun. 30, 2018USD ($)	Apr. 18, 2018	Dec. 31, 2017USD ($)	Mar. 15, 2017USD ($)	Mar. 15, 2017EUR (€)	May 03, 2012USD ($)
Debt Instrument [Line Items]
Commercial Paper		$ 0		$ 379
Central Europe [Member]
Debt Instrument [Line Items]
Bank cash		71.6		37.8
Bank cash, net of overdrafts		64.7		36.6
Overdraft facility		6.9		1.2
Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount							$ 1,900
EUR 2017 Notes USD Equivalent [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.35%
Debt Instrument, Description of Variable Rate Basis	EURIBOR
JPY Overdraft [Member]
Debt Instrument [Line Items]
Short-term Debt		$ 5.4		$ 3.2
Revolving Multicurrency Bank Credit Facility [Member] | MillerCoors
Debt Instrument [Line Items]
Leverage Ratio Following Acquisition		5.25x
Leverage Ratio In Fourth Year Following Acquisition		4.00x
Parent Company [Member] | Senior Notes Due 2017 $300M 2.0% [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount							$ 300
Debt Instrument, Interest Rate, Stated Percentage							2.00%
Parent Company [Member] | $500 million 1.90% notes due 2019 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount					$ 500
Debt Instrument, Interest Rate, Stated Percentage					1.90%	1.90%
Parent Company [Member] | $500 million 2.25% notes due 2020 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount					$ 500
Debt Instrument, Interest Rate, Stated Percentage					2.25%	2.25%
Parent Company [Member] | Two Thousand Seventeen EUR Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount | €						€ 500
Cross currency swaps
Debt Instrument [Line Items]
Derivative, Fixed Interest Rate			0.85%

Debt Fair Value Measurements (D

Debt Fair Value Measurements (Details) - USD ($) $ in Billions	Jun. 30, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
Long-term debt, fair value	$ 10.5	$ 11.2

Debt Acquisition and Other (Nar

Debt Acquisition and Other (Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2018	May 03, 2012
Line of Credit Facility [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 1,500
Senior Notes [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount		$ 1,900
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,500
Parent Company [Member] | Senior Notes [Member] | Senior Notes Due 2017 $300M 2.0% [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount		$ 300
Debt Instrument, Interest Rate, Stated Percentage		2.00%

Inventories (Details)

Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Finished Goods	$ 284.5	$ 222.3
Work in Process	87.6	85.2
Raw Materials	196.9	231.7
Packaging Materials	68.5	52.3
Total inventories, net	$ 637.5	$ 591.5

Accumulated Other Comprehensi60

Accumulated Other Comprehensive Income (Loss) ("AOCI") Table 1 (Details) $ in Millions	6 Months Ended
	Jun. 30, 2018USD ($)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
As of December 31, 2017	$ (860)
As of June 30, 2018	(1,025.4)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
As of December 31, 2017	(314.6)
Foreign currency translation adjustments	(216)
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)	(14.8)
As of June 30, 2018	(545.4)
Gain (loss) on derivative and non-derivative instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
As of December 31, 2017	(110.9)
Foreign currency translation adjustments	69.4
Unrealized gain (loss) on derivative instruments	14
Reclassification of derivative (gain) loss to income	2.4
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)	(21.9)
As of June 30, 2018	(47)
Pension and postretirement benefit adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
As of December 31, 2017	(375)
Foreign currency translation adjustments	(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	3.6
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	0
Tax benefit (expense)	(0.6)
As of June 30, 2018	(373)
Equity method investments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
As of December 31, 2017	(59.5)
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)	(0.7)
Tax benefit (expense)	0.2
As of June 30, 2018	(60)
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
As of December 31, 2017	(860)
Foreign currency translation adjustments	(147.6)
Unrealized gain (loss) on derivative instruments	14
Reclassification of derivative (gain) loss to income	2.4
Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income	3.6
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	(0.7)
Tax benefit (expense)	(37.1)
As of June 30, 2018	$ (1,025.4)

Accumulated Other Comprehensi61

Accumulated Other Comprehensive Income (Loss) ("AOCI") Table 2 (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Cost of Goods Sold	$ 1,739.1	$ 1,755.5	$ 3,274.8	$ 3,127.8
Net Income (loss)	430.8	335	713.3	550
Income tax benefit (expense)	(92.2)	(125.2)	(167.1)	(191.1)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Net income (loss) reclassified, net of tax	(2)	(4.3)	(4.8)	(3.3)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain/(loss) on cash flow hedges [Member]
Net Income (loss)	(1)	0.7	(2.4)	0.7
Income tax benefit (expense)	0.3	(0.3)	0.6	(0.3)
Net income (loss) reclassified, net of tax	(0.7)	0.4	(1.8)	0.4
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain/(loss) on cash flow hedges [Member] | Other income (expense), net [Member]
Foreign currency forwards, other	(0.3)	2.8	(0.9)	4.7
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain/(loss) on cash flow hedges [Member] | Cost of goods sold [Member]
Cost of Goods Sold	0	(1.2)	0	(2.1)
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	(0.7)	(0.9)	(1.5)	(1.9)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Amortization of defined benefit pension and other postretirement benefit plan items [Member]
Prior service benefit (cost)	(0.1)	(0.1)	(0.3)	(0.3)
Curtailment and net actuarial gain (loss)	(1.6)	(3.6)	(3.3)	(1.8)
Net Income (loss)	(1.7)	(3.7)	(3.6)	(2.1)
Income tax benefit (expense)	0.4	(1)	0.6	(1.6)
Net income (loss) reclassified, net of tax	$ (1.3)	$ (4.7)	$ (3)	$ (3.7)

Derivative Instruments and He62

Derivative Instruments and Hedging Activities Narrative (Details) € in Millions, $ in Millions	12 Months Ended	48 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2022	Jul. 18, 2018USD ($)	Apr. 18, 2018USD ($)	Apr. 18, 2018EUR (€)	May 03, 2012USD ($)
Forecast [Member]
Schedule of Trading Securities and Other Trading Assets
Cash flow hedge gain (loss), recorded in AOCI to be reclassed within twelve months	$ 1
Term for expected gains recorded in AOCI	12 months
Maximum term of time in cash flow hedge		4 years
Senior Notes [Member]
Schedule of Trading Securities and Other Trading Assets
Debt Instrument, Face Amount						$ 1,900
Cross currency swaps
Schedule of Trading Securities and Other Trading Assets
Derivative, Fixed Interest Rate				0.85%	0.85%
Derivative, notional amount				$ 500	€ 404
Subsequent Event [Member] | Forward starting interest rate swap [Member]
Schedule of Trading Securities and Other Trading Assets
Derivative, notional amount			$ 1,500

Derivative Instruments and He63

Derivative Instruments and Hedging Activities Derivative Fair Value (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
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] | Foreign currency forwards [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability		0
Derivative Asset, Fair Value, Gross Asset	0
Fair Value, Inputs, Level 1 [Member] | Commodity swaps [Member]
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 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Fair Value, Net	114.4	111.9
Fair Value, Inputs, Level 2 [Member] | Foreign currency forwards [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability		(10.9)
Derivative Asset, Fair Value, Gross Asset	4.1
Fair Value, Inputs, Level 2 [Member] | Commodity swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset	82.7	122.8
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] | Foreign currency forwards [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability		0
Derivative Asset, Fair Value, Gross Asset	0
Significant unobservable inputs (Level 3) [Member] | Commodity swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	0
Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Fair Value, Net	114.4	111.9
Reported Value Measurement [Member] | Cross currency swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset	27.6
Reported Value Measurement [Member] | Foreign currency forwards [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability		(10.9)
Derivative Asset, Fair Value, Gross Asset	4.1
Reported Value Measurement [Member] | Commodity swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset	82.7	$ 122.8
Reported Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Cross currency swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset	0
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Cross currency swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset	27.6
Reported Value Measurement [Member] | Significant unobservable inputs (Level 3) [Member] | Cross currency swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 0

Derivative Instruments and He64

Derivative Instruments and Hedging Activities Fair Value Balance Sheet (Details) € in Millions, $ in Millions	3 Months Ended
	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)	Apr. 18, 2018USD ($)	Apr. 18, 2018EUR (€)	Dec. 31, 2017USD ($)
Cross currency swaps
Derivatives designated as hedging instruments:
Derivative, notional amount			$ 500	€ 404
Designated as Hedging Instrument [Member]
Derivatives designated as hedging instruments:
Derivative asset, fair value, designated as hedging instrument		$ 33.2			$ 0.6
Derivative liability, fair value, designated as hedging instrument		(1.5)			(11.5)
Designated as Hedging Instrument [Member] | Cross currency swaps | Other current assets [Member]
Derivatives designated as hedging instruments:
Derivative asset, fair value, designated as hedging instrument		27.6
Designated as Hedging Instrument [Member] | Cross currency swaps | Accounts payable and other current liabilities [Member]
Derivatives designated as hedging instruments:
Derivative liability, fair value, designated as hedging instrument		0
Designated as Hedging Instrument [Member] | Foreign currency forwards [Member] | Other current assets [Member]
Derivatives designated as hedging instruments:
Derivative asset, fair value, designated as hedging instrument		2.4			0.4
Designated as Hedging Instrument [Member] | Foreign currency forwards [Member] | Other non-current assets [Member]
Derivatives designated as hedging instruments:
Derivative asset, fair value, designated as hedging instrument		3.2			0.2
Designated as Hedging Instrument [Member] | Foreign currency forwards [Member] | Accounts payable and other current liabilities [Member]
Derivatives designated as hedging instruments:
Derivative liability, fair value, designated as hedging instrument		(0.8)			(6.1)
Designated as Hedging Instrument [Member] | Foreign currency forwards [Member] | Other liabilities [Member]
Derivatives designated as hedging instruments:
Derivative liability, fair value, designated as hedging instrument		(0.7)			(5.4)
Not Designated as Hedging Instrument [Member]
Derivatives not designated as hedging instruments:
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value		95.4			134.5
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value		(12.7)			(11.7)
Not Designated as Hedging Instrument [Member] | Commodity swaps [Member]
Derivatives designated as hedging instruments:
Derivative, notional amount		796			765
Not Designated as Hedging Instrument [Member] | Commodity swaps [Member] | Other current assets [Member]
Derivatives not designated as hedging instruments:
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value		59			70.8
Not Designated as Hedging Instrument [Member] | Commodity swaps [Member] | Other non-current assets [Member]
Derivatives not designated as hedging instruments:
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value		36.2			63.5
Not Designated as Hedging Instrument [Member] | Commodity swaps [Member] | Accounts payable and other current liabilities [Member]
Derivatives not designated as hedging instruments:
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value		(7)			(7.3)
Not Designated as Hedging Instrument [Member] | Commodity swaps [Member] | Other liabilities [Member]
Derivatives not designated as hedging instruments:
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value		(5.5)			(4.2)
Not Designated as Hedging Instrument [Member] | Commodity Option [Member]
Derivatives designated as hedging instruments:
Derivative, notional amount		30.6			30.6
Not Designated as Hedging Instrument [Member] | Commodity Option [Member] | Other current assets [Member]
Derivatives not designated as hedging instruments:
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value		0.2
Not Designated as Hedging Instrument [Member] | Commodity Option [Member] | Other non-current assets [Member]
Derivatives not designated as hedging instruments:
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value		0			0.2
Not Designated as Hedging Instrument [Member] | Commodity Option [Member] | Accounts payable and other current liabilities [Member]
Derivatives not designated as hedging instruments:
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value		(0.2)
Not Designated as Hedging Instrument [Member] | Commodity Option [Member] | Other liabilities [Member]
Derivatives not designated as hedging instruments:
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value		0			(0.2)
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Cross currency swaps
Derivatives designated as hedging instruments:
Derivative, notional amount		500
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Foreign currency forwards [Member]
Derivatives designated as hedging instruments:
Derivative, notional amount		$ 339.6			$ 326.4
Fair Value Hedging [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	$ 0.4

Derivative Instruments and He65

Derivative Instruments and Hedging Activities Cash Flow Hedges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Cost of Goods Sold	$ 1,739.1	$ 1,755.5	$ 3,274.8	$ 3,127.8
Interest income (expense), net	(76.7)	(89.2)	(159.9)	(185.8)
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		0		0
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(1)	0.7	(2.4)	0.7
Cash Flow Hedging [Member] | Forward starting interest rate swap [Member] | Interest expense, net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		0		0
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(0.7)	(0.9)	(1.5)	(1.9)
Cash Flow Hedging [Member] | Foreign currency forwards [Member] | Cost of goods sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		0		0
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(0.3)	2.8	(0.9)	4.7
Cash Flow Hedging [Member] | Foreign currency forwards [Member] | Other income (expense), net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		0		0
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		(1.2)		(2.1)
Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency translation adjustments	83.2	(100.6)	41.8	(107.3)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax	0	0	0	0
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	0	0	0	0
EUR 800 million 1.25% notes due 2024 [Member] | Senior Notes [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net			0	0
EUR 800 million 1.25% notes due 2024 [Member] | Senior Notes [Member] | Net Investment Hedging [Member] | Other income (expense), net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency translation adjustments	51.2	(61.9)	25.7	(72.7)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax	0	0	0	0
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	0	0
EUR 500 million notes due 2019 | Senior Notes [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net			0	0
EUR 500 million notes due 2019 | Senior Notes [Member] | Net Investment Hedging [Member] | Other income (expense), net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency translation adjustments	32	(38.7)	16.1	(34.6)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax	0	0	$ 0	$ 0
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	$ 0	$ 0

Derivative Instruments and He66

Derivative Instruments and Hedging Activities Hedging Activities (Details) $ in Millions	Jun. 30, 2018USD ($)
Current portion of long-term debt and short-term borrowings
Derivative [Line Items]
Carrying amount of the hedged assets/liabilities	$ 0
Cumulative amount of fair value hedging adjustment(s) in the hedged assets/liabilities(1) Increase/(Decrease)	(0.9)
Long-term debt
Derivative [Line Items]
Carrying amount of the hedged assets/liabilities	0
Cumulative amount of fair value hedging adjustment(s) in the hedged assets/liabilities(1) Increase/(Decrease)	$ 9.3

Derivative Instruments and He67

Derivative Instruments and Hedging Activities Other Derivatives (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Not Designated as Hedging Instrument [Member]
Gain (Loss) on Derivative Instruments:
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 62.2	$ (17.7)	$ (12.2)	$ 39.7
Not Designated as Hedging Instrument [Member] | Commodity swaps [Member] | Cost of goods sold [Member]
Gain (Loss) on Derivative Instruments:
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	62.2	(17.7)	(12.2)	48
Not Designated as Hedging Instrument [Member] | Foreign currency forwards [Member] | Other income (expense), net [Member]
Gain (Loss) on Derivative Instruments:
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net				(8.3)
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Gain (Loss) on Derivative Instruments:
Amount of gain (loss) recognized in income on derivative				0.1
Fair Value Hedging [Member]
Gain (Loss) on Derivative Instruments:
Amount of gain (loss) recognized in income on derivative		0.4
Fair Value Hedging [Member] | Interest rate swaps [Member] | Interest Expense [Member]
Gain (Loss) on Derivative Instruments:
Amount of gain (loss) recognized in income on derivative		0.4		0.1
Net Investment Hedging [Member]
Gain (Loss) on Derivative Instruments:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	83.2	(100.6)	41.8	(107.3)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax	0	0	0	0
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	0	0	0	0
EUR 800 million 1.25% notes due 2024 [Member] | Senior Notes [Member] | Net Investment Hedging [Member]
Gain (Loss) on Derivative Instruments:
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net			0	0
EUR 800 million 1.25% notes due 2024 [Member] | Senior Notes [Member] | Net Investment Hedging [Member] | Other income (expense), net [Member]
Gain (Loss) on Derivative Instruments:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	51.2	(61.9)	25.7	(72.7)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax	0	0	0	0
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	0	0
EUR 500 million notes due 2019 | Senior Notes [Member] | Net Investment Hedging [Member]
Gain (Loss) on Derivative Instruments:
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net			0	0
EUR 500 million notes due 2019 | Senior Notes [Member] | Net Investment Hedging [Member] | Other income (expense), net [Member]
Gain (Loss) on Derivative Instruments:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	32	(38.7)	16.1	(34.6)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax	0	0	$ 0	$ 0
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	$ 0	$ 0

Derivative Instruments and He68

Derivative Instruments and Hedging Activities Schedule of AOCI (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net Investment Hedging [Member]
Derivative [Line Items]
Foreign currency translation adjustments	$ 83.2	$ (100.6)	$ 41.8	$ (107.3)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax	0	0	0	0
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	0	0	0	0
Net Investment Hedging [Member] | Cross currency swaps
Derivative [Line Items]
Foreign currency translation adjustments	27.6		27.6
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	2.4		2.4
Net Investment Hedging [Member] | Interest Income (Expense) | Cross currency swaps
Derivative [Line Items]
Foreign currency translation adjustments	27.6		27.6
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax	0		0
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	2.4		2.4
Cash Flow Hedging [Member]
Derivative [Line Items]
Unrealized gain (loss) on derivative instruments	6.5	(8.4)	14	(13.9)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(1)	0.7	(2.4)	0.7
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		0		0
Cash Flow Hedging [Member] | Forward starting interest rate swap [Member]
Derivative [Line Items]
Unrealized gain (loss) on derivative instruments	0	0	0	0
Cash Flow Hedging [Member] | Foreign currency forwards [Member]
Derivative [Line Items]
Unrealized gain (loss) on derivative instruments	6.5	(8.4)	14	(13.9)
Cash Flow Hedging [Member] | Interest Expense [Member] | Forward starting interest rate swap [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(0.7)	(0.9)	(1.5)	(1.9)
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		0		0
Cash Flow Hedging [Member] | Other income (expense), net [Member] | Foreign currency forwards [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		(1.2)		(2.1)
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		0		0
Cash Flow Hedging [Member] | Cost of goods sold [Member] | Foreign currency forwards [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ (0.3)	2.8	$ (0.9)	4.7
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		$ 0		$ 0

Pension and Other Postretirem69

Pension and Other Postretirement Benefits (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net periodic pension and OPEB costs:
Other pension and postretirement benefits (costs), net	$ 9.9	$ 9.4	$ 19.9	$ 22.7
Contributions paid to defined benefit plans			5
Defined Benefit Plans
Net periodic pension and OPEB costs:
Service cost	1.4	1.9	2.8	3.7
Interest cost	40.7	50.8	81.9	102.3
Expected return on plan assets	(58.9)	(71.4)	(118.6)	(142.1)
Amortization of prior service cost (benefit)	0.2	0.1	0.4	0.3
Amortization of net actuarial loss (gain)	2	3.6	3.9	4.7
Curtailment and settlement loss (gain)			(0.1)	0
Less: expected participant contributions	0	(0.1)	0	(0.3)
Other pension and postretirement benefits (costs), net	(16)	(17)	(32.3)	(35.1)
Net periodic pension and OPEB cost	(14.6)	(15.1)	(29.5)	(31.4)
Other Postretirement Benefits
Net periodic pension and OPEB costs:
Service cost	2.3	2.8	4.6	5.4
Interest cost	6.6	7.6	13.2	15.2
Expected return on plan assets	0	0	0	0.1
Amortization of prior service cost (benefit)	(0.1)	0	(0.1)	0
Amortization of net actuarial loss (gain)	(0.4)	0	(0.7)	0
Curtailment and settlement loss (gain)			0	2.9
Less: expected participant contributions	0	0	0	0
Other pension and postretirement benefits (costs), net	6.1	7.6	12.4	12.4
Net periodic pension and OPEB cost	8.4	10.4	17	17.8
defined benefit plans and other postretirement benefit plans [Member]
Net periodic pension and OPEB costs:
Service cost	3.7	4.7	7.4	9.1
Interest cost	47.3	58.4	95.1	117.5
Expected return on plan assets	(58.9)	(71.4)	(118.6)	(142)
Amortization of prior service cost (benefit)	0.1	0.1	0.3	0.3
Amortization of net actuarial loss (gain)	1.6	3.6	3.2	4.7
Curtailment and settlement loss (gain)			(0.1)	2.9
Less: expected participant contributions	0	(0.1)	0	(0.3)
Other pension and postretirement benefits (costs), net	(9.9)	(9.4)	(19.9)	(22.7)
Net periodic pension and OPEB cost	(6.2)	$ (4.7)	(12.5)	$ (13.6)
Maximum [Member]
Net periodic pension and OPEB costs:
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year	$ 10		$ 10

Commitments and Contingencies L

Commitments and Contingencies Loss Contingency (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Jun. 30, 2018	Dec. 31, 2017
Loss Contingencies [Line Items]
Loss Contingency Accrual, Period Increase (Decrease)	$ 50
Guarantor Obligations, Current Carrying Value		$ 59.8	$ 42.8
Litigation and Other Disputes
Accrued liabilities, litigations and disputes		13.9	17.8
Kaiser Tax, Civil and Labor Indemnity Reserve [Member]
Loss Contingencies [Line Items]
Loss Contingency Accrual		14.7	$ 17.3
Maximum [Member] | Kaiser purchased tax credits indemnity reserve, category two
Litigation and Other Disputes
Loss Contingency, Estimate of Possible Loss		$ 90.3

Supplemental Guarantor Inform71

Supplemental Guarantor Information Supplemental Narrative (Details) € in Millions, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)	Mar. 15, 2017USD ($)	Mar. 15, 2017EUR (€)	Jul. 07, 2016USD ($)	May 03, 2012USD ($)
Comprehensive income (loss) attributable to Molson Coors Brewing Company	$ 209.6		$ 576.2	$ 536.8	$ 857.4
Stockholders' Equity Attributable to Parent	13,576.6			13,576.6		$ 13,226.1
Income (Loss) Net of Tax, Including Portion Attributable to Noncontrolling Interest	430.8		335	713.3	550
Net income (loss) including noncontrolling interests	430.8		335	713.3	550
Payments of Dividends				177	176.6
Parent Company [Member]
Income (Loss) from Equity Method Investments Consolidating	261.9		440.6	897.4	786.6
Comprehensive income (loss) attributable to Molson Coors Brewing Company	209.6		576.2	536.8	857.4
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	25,417			25,417		26,443.9
Stockholders' Equity Attributable to Parent	13,576.6			13,576.6		13,226.1
Income (Loss) Net of Tax, Including Portion Attributable to Noncontrolling Interest	424.1		329.9	702.2	538.4
Payments of Dividends				162.5	161.8
Subsidiary Guarantors [Member]
Payments of Dividends		$ 1,700
Senior Notes [Member]
Debt Instrument, Face Amount										$ 1,900
Senior Notes [Member] | Parent Company [Member] | Senior Notes Due 2017 $300M 2.0% [Member]
Debt Instrument, Face Amount										$ 300
Debt instrument, interest rate percentage										2.00%
Senior Notes [Member] | Parent Company [Member] | Senior Notes Due 2022 $500M 3.5% [Member]
Debt Instrument, Face Amount										$ 500
Debt instrument, interest rate percentage										3.50%
Senior Notes [Member] | Parent Company [Member] | Senior Notes Due 2042 $1.1B 5.0% [Member]
Debt Instrument, Face Amount										$ 1,100
Debt instrument, interest rate percentage										5.00%
Senior Notes [Member] | Parent Company [Member] | Senior Notes Due 2019 $500M 1.45% [Member]
Debt Instrument, Face Amount									$ 500
Debt instrument, interest rate percentage									1.45%
Senior Notes [Member] | Parent Company [Member] | Senior Notes Due 2021 $1B 2.1% [Member]
Debt Instrument, Face Amount									$ 1,000
Debt instrument, interest rate percentage									2.10%
Senior Notes [Member] | Parent Company [Member] | Senior Notes Due 2026 $2B 3.0% [Member]
Debt Instrument, Face Amount									$ 2,000
Debt instrument, interest rate percentage									3.00%
Senior Notes [Member] | Parent Company [Member] | Senior Notes Due 2046 $1.8B 4.2% [Member]
Debt Instrument, Face Amount									$ 1,800
Debt instrument, interest rate percentage									4.20%
Senior Notes [Member] | Parent Company [Member] | Senior Notes Due 2024 EUR800M 1.25% [Member]
Debt Instrument, Face Amount									$ 800
Debt instrument, interest rate percentage									1.25%
Senior Notes [Member] | Parent Company [Member] | $500 million 1.90% notes due 2019 [Member]
Debt Instrument, Face Amount							$ 500
Debt instrument, interest rate percentage							1.90%	1.90%
Senior Notes [Member] | Parent Company [Member] | $500 million 2.25% notes due 2020 [Member]
Debt Instrument, Face Amount							$ 500
Debt instrument, interest rate percentage							2.25%	2.25%
Senior Notes [Member] | Parent Company [Member] | Two Thousand Seventeen EUR Notes [Member]
Debt Instrument, Face Amount | €								€ 500
Consolidation, Eliminations [Member]
Income (Loss) from Equity Method Investments Consolidating	(398.5)		(370.6)	(880)	(664.7)
Comprehensive income (loss) attributable to Molson Coors Brewing Company	77.7		(822.7)	(618.2)	(1,231)
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	(34,278)			(34,278)		(35,424.4)
Stockholders' Equity Attributable to Parent	(34,278)			(34,278)		$ (35,424.4)
Income (Loss) Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ (398.5)		$ (370.6)	(880)	(664.7)
Payments of Dividends				$ (136.8)	$ (260.6)

Supplemental Guarantor Inform72

Supplemental Guarantor Information Income statement (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Condensed financial statements
Sales	$ 3,820.5	$ 3,793.1	$ 6,688.5	$ 6,706.9
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Excise taxes	(735.3)	(701.8)	(1,271.8)	(1,166.9)
Net Sales	3,085.2	3,091.3	5,416.7	5,540
Cost of Goods Sold	(1,739.1)	(1,755.5)	(3,274.8)	(3,127.8)
Gross profit	1,346.1	1,335.8	2,141.9	2,412.2
Marketing, general and administrative expenses	(744.7)	(782.4)	(1,425.8)	(1,487.7)
Special items, net	(10.5)	(16.5)	304.3	(23.2)
Operating income (loss)	590.9	536.9	1,020.4	901.3
Interest income (expense), net	(76.7)	(89.2)	(159.9)	(185.8)
Other pension and postretirement benefits (costs), net	9.9	9.4	19.9	22.7
Other pension and postretirement benefits (costs), net		9.4	19.9	22.7
Other income (expense), net	(1.1)	3.1	0	2.9
Income tax benefit (expense)	(92.2)	(125.2)	(167.1)	(191.1)
Net Income (loss)	430.8	335	713.3	550
Net (income) loss attributable to noncontrolling interests	(6.7)	(5.1)	(11.1)	(11.6)
Net income (loss) attributable to Molson Coors Brewing Company	424.1	329.9	702.2	538.4
Comprehensive income (loss) attributable to Molson Coors Brewing Company	209.6	576.2	536.8	857.4
Parent Company [Member]
Condensed financial statements
Sales	0	8.3	4.9	15.3
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Excise taxes	0	0	0	0
Net Sales	0	8.3	4.9	15.3
Cost of Goods Sold	(0.5)	(1)	(1)	(1)
Gross profit	(0.5)	7.3	3.9	14.3
Marketing, general and administrative expenses	(60.9)	(68.2)	(131.1)	(135.9)
Special items, net	(0.4)	(0.3)	(0.4)	(0.8)
Equity income (loss) in subsidiaries	261.9	440.6	897.4	786.6
Operating income (loss)	200.1	379.4	769.8	664.2
Interest income (expense), net	(81.2)	(74.4)	(166.4)	(155.5)
Other pension and postretirement benefits (costs), net	0	0	0	0
Other income (expense), net	0.3	0	0.1	(8.2)
Income (loss) before income taxes	119.2	305	603.5	500.5
Income tax benefit (expense)	304.9	24.9	98.7	37.9
Net Income (loss)	424.1	329.9	702.2	538.4
Net (income) loss attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to Molson Coors Brewing Company	424.1	329.9	702.2	538.4
Comprehensive income (loss) attributable to Molson Coors Brewing Company	209.6	576.2	536.8	857.4
Subsidiary Guarantors [Member]
Condensed financial statements
Sales	2,874.7	2,954.1	5,109.3	5,330.7
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Excise taxes	(406.4)	(411.5)	(707.8)	(737.2)
Net Sales	2,468.3	2,542.6	4,401.5	4,593.5
Cost of Goods Sold	(1,385)	(1,421.4)	(2,626.7)	(2,561.8)
Gross profit	1,083.3	1,121.2	1,774.8	2,031.7
Marketing, general and administrative expenses	(514)	(558.4)	(977.3)	(1,056.9)
Special items, net	(7.7)	(13.7)	313.7	(17.3)
Equity income (loss) in subsidiaries	79.2	(132.2)	(79.6)	(203.9)
Operating income (loss)	640.8	416.9	1,031.6	753.6
Interest income (expense), net	84.8	60.3	166.8	119.2
Other pension and postretirement benefits (costs), net	1.6	(2)	3	0
Other income (expense), net	(80.5)	94.9	(40.3)	111.6
Income (loss) before income taxes	646.7	570.1	1,161.1	984.4
Income tax benefit (expense)	(385.1)	(129.7)	(263.2)	(197.8)
Net Income (loss)	261.6	440.4	897.9	786.6
Net (income) loss attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to Molson Coors Brewing Company	261.6	440.4	897.9	786.6
Comprehensive income (loss) attributable to Molson Coors Brewing Company	(30.7)	730.7	712.5	1,148.2
Subsidiary Non Guarantors [Member]
Condensed financial statements
Sales	1,079.7	973.2	1,822.3	1,623.2
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Excise taxes	(328.9)	(290.3)	(564)	(429.7)
Net Sales	750.8	682.9	1,258.3	1,193.5
Cost of Goods Sold	(485.8)	(463.7)	(885.5)	(805.1)
Gross profit	265	219.2	372.8	388.4
Marketing, general and administrative expenses	(171.5)	(167.7)	(327)	(317.1)
Special items, net	(2.4)	(2.5)	(9)	(5.1)
Equity income (loss) in subsidiaries	57.4	62.2	62.2	82
Operating income (loss)	148.5	111.2	99	148.2
Interest income (expense), net	(80.3)	(75.1)	(160.3)	(149.5)
Other pension and postretirement benefits (costs), net	8.3	11.4	16.9	22.7
Other income (expense), net	79.1	(91.8)	40.2	(100.5)
Income (loss) before income taxes	155.6	(44.3)	(4.2)	(79.1)
Income tax benefit (expense)	(12)	(20.4)	(2.6)	(31.2)
Net Income (loss)	143.6	(64.7)	(6.8)	(110.3)
Net (income) loss attributable to noncontrolling interests	(6.7)	(5.1)	(11.1)	(11.6)
Net income (loss) attributable to Molson Coors Brewing Company	136.9	(69.8)	(17.9)	(121.9)
Comprehensive income (loss) attributable to Molson Coors Brewing Company	(47)	92	(94.3)	82.8
Consolidated [Member]
Condensed financial statements
Sales	3,820.5	3,793.1	6,688.5	6,706.9
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Excise taxes	(735.3)	(701.8)	(1,271.8)	(1,166.9)
Net Sales	3,085.2	3,091.3	5,416.7	5,540
Cost of Goods Sold	(1,739.1)	(1,755.5)	(3,274.8)	(3,127.8)
Gross profit	1,346.1	1,335.8	2,141.9	2,412.2
Marketing, general and administrative expenses	(744.7)	(782.4)	(1,425.8)	(1,487.7)
Special items, net	(10.5)	(16.5)	304.3	(23.2)
Equity income (loss) in subsidiaries	0	0	0	0
Operating income (loss)	590.9	536.9	1,020.4	901.3
Interest income (expense), net	(76.7)	(89.2)	(159.9)	(185.8)
Other pension and postretirement benefits (costs), net	9.9	9.4	19.9	22.7
Other income (expense), net	(1.1)	3.1	0	2.9
Income (loss) before income taxes	523	460.2	880.4	741.1
Income tax benefit (expense)	(92.2)	(125.2)	(167.1)	(191.1)
Net Income (loss)	430.8	335	713.3	550
Net (income) loss attributable to noncontrolling interests	(6.7)	(5.1)	(11.1)	(11.6)
Net income (loss) attributable to Molson Coors Brewing Company	424.1	329.9	702.2	538.4
Comprehensive income (loss) attributable to Molson Coors Brewing Company	209.6	576.2	536.8	857.4
Consolidation, Eliminations [Member]
Condensed financial statements
Sales	(133.9)	(142.5)	(248)	(262.3)
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Excise taxes	0	0	0	0
Net Sales	(133.9)	(142.5)	(248)	(262.3)
Cost of Goods Sold	132.2	130.6	238.4	240.1
Gross profit	(1.7)	(11.9)	(9.6)	(22.2)
Marketing, general and administrative expenses	1.7	11.9	9.6	22.2
Special items, net	0	0	0	0
Equity income (loss) in subsidiaries	(398.5)	(370.6)	(880)	(664.7)
Operating income (loss)	(398.5)	(370.6)	(880)	(664.7)
Interest income (expense), net	0	0	0	0
Other pension and postretirement benefits (costs), net	0	0	0	0
Other income (expense), net	0	0	0	0
Income (loss) before income taxes	(398.5)	(370.6)	(880)	(664.7)
Income tax benefit (expense)	0	0	0	0
Net Income (loss)	(398.5)	(370.6)	(880)	(664.7)
Net (income) loss attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to Molson Coors Brewing Company	(398.5)	(370.6)	(880)	(664.7)
Comprehensive income (loss) attributable to Molson Coors Brewing Company	$ 77.7	$ (822.7)	$ (618.2)	$ (1,231)

Supplemental Guarantor Inform73

Supplemental Guarantor Information Balance Sheet (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 792.9	$ 418.6	$ 502.9	$ 560.9
Accounts receivable, net	984.9	733.8
Other receivables, net	131.1	168.2
Total inventories, net	637.5	591.5
Other current assets, net	341.1	277.6
Total current assets	2,887.5	2,189.7
Properties, net	4,599.4	4,673.7
Goodwill	8,332.6	8,405.5
Other intangibles, net	14,018.4	14,296.5
Total assets	30,560.9	30,246.9
Accounts payable and other current liabilities	2,971	2,684.5
Current liabilities:
Current portion of long-term debt and short-term borrowings	1,411	714.8
Total current liabilities	4,382	3,399.3
Long-term debt	9,455.1	10,598.7
Pension and postretirement benefits	828.1	848.5
Deferred tax liabilities	1,771	1,648.6
Other Liabilities, Noncurrent	328.1	316.8
Total liabilities	16,764.3	16,811.9
MCBC stockholders' equity	13,576.6	13,226.1
Noncontrolling interests	220	208.9
Total equity	13,796.6	13,435	12,315.4	11,621.7
Total liabilities and equity	30,560.9	30,246.9
Consolidation, Eliminations [Member]
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
Intercompany accounts receivable	(2,010.5)	(2,368.8)
Total current assets	(2,010.5)	(2,368.8)
Properties, net	0	0
Goodwill	0	0
Other intangibles, net	0	0
Net investment in and advances to subsidiaries	(34,278)	(35,424.4)
Other assets	(62.9)	(61.1)
Total assets	(36,351.4)	(37,854.3)
Accounts payable and other current liabilities	0	0
Current liabilities:
Current portion of long-term debt and short-term borrowings	0	0
Intercompany accounts payable	(2,010.5)	(2,368.8)
Total current liabilities	(2,010.5)	(2,368.8)
Long-term debt	0	0
Pension and postretirement benefits	0	0
Deferred tax liabilities	(62.9)	(61.1)
Other Liabilities, Noncurrent	0	0
Intercompany notes payable	(7,592.4)	(7,945.1)
Total liabilities	(9,665.8)	(10,375)
MCBC stockholders' equity	(34,278)	(35,424.4)
Intercompany notes receivable	7,592.4	7,945.1
Total stockholders' equity	(26,685.6)	(27,479.3)
Noncontrolling interests	0	0
Total equity	(26,685.6)	(27,479.3)
Total liabilities and equity	(36,351.4)	(37,854.3)
Parent Company [Member]
Current assets:
Cash and cash equivalents	433.5	6.6	71.4	147.3
Accounts receivable, net	0	0
Other receivables, net	44.5	90.4
Total inventories, net	0	0
Other current assets, net	0	9.6
Intercompany accounts receivable	0	0
Total current assets	478	106.6
Properties, net	18	16.8
Goodwill	0	0
Other intangibles, net	7	8
Net investment in and advances to subsidiaries	25,417	26,443.9
Other assets	121.4	101.7
Total assets	26,041.4	26,677
Accounts payable and other current liabilities	163.1	180.4
Current liabilities:
Current portion of long-term debt and short-term borrowings	1,082.2	379
Intercompany accounts payable	1,566.2	2,131.8
Total current liabilities	2,811.5	2,691.2
Long-term debt	8,279.9	9,399.7
Pension and postretirement benefits	3.1	2.9
Deferred tax liabilities	0	0
Other Liabilities, Noncurrent	23.8	10.7
Intercompany notes payable	1,347.6	1,347.6
Total liabilities	12,465.9	13,452.1
MCBC stockholders' equity	13,576.6	13,226.1
Intercompany notes receivable	(1.1)	(1.2)
Total stockholders' equity	13,575.5	13,224.9
Noncontrolling interests	0	0
Total equity	13,575.5	13,224.9
Total liabilities and equity	26,041.4	26,677
Subsidiary Guarantors [Member]
Current assets:
Cash and cash equivalents	68.6	140.9	109.3	141.5
Accounts receivable, net	530.8	424.8
Other receivables, net	57	45.2
Total inventories, net	477	457.7
Other current assets, net	244.1	184.8
Intercompany accounts receivable	1,942.6	2,303.2
Total current assets	3,320.1	3,556.6
Properties, net	3,428.8	3,509.8
Goodwill	6,463.8	6,487.8
Other intangibles, net	11,979.6	12,183.8
Net investment in and advances to subsidiaries	4,262.6	4,297.4
Other assets	263	253.7
Total assets	29,717.9	30,289.1
Accounts payable and other current liabilities	1,825.5	1,648.9
Current liabilities:
Current portion of long-term debt and short-term borrowings	304.5	317.8
Intercompany accounts payable	114.6	102.8
Total current liabilities	2,244.6	2,069.5
Long-term debt	1,138.9	1,189.5
Pension and postretirement benefits	811.8	832.1
Deferred tax liabilities	927.1	864.7
Other Liabilities, Noncurrent	196.3	200.1
Intercompany notes payable	80.1	227
Total liabilities	5,398.8	5,382.9
MCBC stockholders' equity	30,482.6	31,275.5
Intercompany notes receivable	(6,163.5)	(6,369.3)
Total stockholders' equity	24,319.1	24,906.2
Noncontrolling interests	0	0
Total equity	24,319.1	24,906.2
Total liabilities and equity	29,717.9	30,289.1
Subsidiary Non Guarantors [Member]
Current assets:
Cash and cash equivalents	290.8	271.1	322.2	272.1
Accounts receivable, net	454.1	309
Other receivables, net	29.6	32.6
Total inventories, net	160.5	133.8
Other current assets, net	97	83.2
Intercompany accounts receivable	67.9	65.6
Total current assets	1,099.9	895.3
Properties, net	1,152.6	1,147.1
Goodwill	1,868.8	1,917.7
Other intangibles, net	2,031.8	2,104.7
Net investment in and advances to subsidiaries	4,598.4	4,683.1
Other assets	401.5	387.2
Total assets	11,153	11,135.1
Accounts payable and other current liabilities	982.4	855.2
Current liabilities:
Current portion of long-term debt and short-term borrowings	24.3	18
Intercompany accounts payable	329.7	134.2
Total current liabilities	1,336.4	1,007.4
Long-term debt	36.3	9.5
Pension and postretirement benefits	13.2	13.5
Deferred tax liabilities	906.8	845
Other Liabilities, Noncurrent	108	106
Intercompany notes payable	6,164.7	6,370.5
Total liabilities	8,565.4	8,351.9
MCBC stockholders' equity	3,795.4	4,148.9
Intercompany notes receivable	(1,427.8)	(1,574.6)
Total stockholders' equity	2,367.6	2,574.3
Noncontrolling interests	220	208.9
Total equity	2,587.6	2,783.2
Total liabilities and equity	11,153	11,135.1
Consolidated [Member]
Current assets:
Cash and cash equivalents	792.9	418.6	$ 502.9	$ 560.9
Accounts receivable, net	984.9	733.8
Other receivables, net	131.1	168.2
Total inventories, net	637.5	591.5
Other current assets, net	341.1	277.6
Intercompany accounts receivable	0	0
Total current assets	2,887.5	2,189.7
Properties, net	4,599.4	4,673.7
Goodwill	8,332.6	8,405.5
Other intangibles, net	14,018.4	14,296.5
Net investment in and advances to subsidiaries	0	0
Other assets	723	681.5
Total assets	30,560.9	30,246.9
Accounts payable and other current liabilities	2,971	2,684.5
Current liabilities:
Current portion of long-term debt and short-term borrowings	1,411	714.8
Intercompany accounts payable	0	0
Total current liabilities	4,382	3,399.3
Long-term debt	9,455.1	10,598.7
Pension and postretirement benefits	828.1	848.5
Deferred tax liabilities	1,771	1,648.6
Other Liabilities, Noncurrent	328.1	316.8
Intercompany notes payable	0	0
Total liabilities	16,764.3	16,811.9
MCBC stockholders' equity	13,576.6	13,226.1
Intercompany notes receivable	0	0
Total stockholders' equity	13,576.6	13,226.1
Noncontrolling interests	220	208.9
Total equity	13,796.6	13,435
Total liabilities and equity	$ 30,560.9	$ 30,246.9

Supplemental Guarantor Inform74

Supplemental Guarantor Information Cash Flows (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities	$ 1,297.8	$ 818.5
Cash flows from investing activities:
Additions to properties	(351.1)	(354)
Proceeds from sales of properties and other assets	4.4	46.1
Other	(50.5)	6
Net cash provided by (used in) investing activities	(397.2)	(301.9)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	6.3	1.1
Dividends paid	(177)	(176.6)
Payments on debt and borrowings	(2.4)	(2,201.5)
Proceeds on debt and borrowings	0	1,536
Net proceeds from (payments on) revolving credit facilities and commercial paper	(376.1)	282
Change in overdraft balances and other	24.5	(34.2)
Net cash provided by (used in) financing activities	(524.7)	(593.2)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	375.9	(76.6)
Effect of foreign exchange rate changes on cash and cash equivalents	(1.6)	18.6
Balance at beginning of year	418.6	560.9
Balance at end of period	792.9	502.9
Parent Company [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities	987.7	496
Cash flows from investing activities:
Additions to properties	(7)	(10.3)
Proceeds from sales of properties and other assets	0	0
Other	0	0
Net intercompany investing activity	18.3	0
Net cash provided by (used in) investing activities	11.3	(10.3)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	6.3	1.1
Dividends paid	(162.5)	(161.8)
Payments on debt and borrowings	0	(2,200)
Proceeds on debt and borrowings		1,536
Net proceeds from (payments on) revolving credit facilities and commercial paper	(378.4)	280.3
Change in overdraft balances and other	(4.9)	(17.2)
Net intercompany financing activity	(32.6)	0
Net cash provided by (used in) financing activities	(572.1)	(561.6)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	426.9	(75.9)
Effect of foreign exchange rate changes on cash and cash equivalents	0	0
Balance at beginning of year	6.6	147.3
Balance at end of period	433.5	71.4
Subsidiary Guarantors [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities	368.8	471.3
Cash flows from investing activities:
Additions to properties	(256.8)	(275.3)
Proceeds from sales of properties and other assets	1.7	2.2
Other	(0.7)	0
Net intercompany investing activity	(20.8)	(70.8)
Net cash provided by (used in) investing activities	(276.6)	(343.9)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	0	0
Dividends paid	0	(150.5)
Payments on debt and borrowings	(0.4)	0
Proceeds on debt and borrowings		0
Net proceeds from (payments on) revolving credit facilities and commercial paper	0	0
Change in overdraft balances and other	(6.9)	(10.6)
Net intercompany financing activity	(157.5)	0
Net cash provided by (used in) financing activities	(164.8)	(161.1)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	(72.6)	(33.7)
Effect of foreign exchange rate changes on cash and cash equivalents	0.3	1.5
Balance at beginning of year	140.9	141.5
Balance at end of period	68.6	109.3
Subsidiary Non Guarantors [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities	78.1	111.8
Cash flows from investing activities:
Additions to properties	(87.3)	(68.4)
Proceeds from sales of properties and other assets	2.7	43.9
Other	(49.8)	6
Net intercompany investing activity	177.8	0
Net cash provided by (used in) investing activities	43.4	(18.5)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	0	0
Dividends paid	(151.3)	(124.9)
Payments on debt and borrowings	(2)	(1.5)
Proceeds on debt and borrowings		0
Net proceeds from (payments on) revolving credit facilities and commercial paper	2.3	1.7
Change in overdraft balances and other	36.3	(6.4)
Net intercompany financing activity	14.8	70.8
Net cash provided by (used in) financing activities	(99.9)	(60.3)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	21.6	33
Effect of foreign exchange rate changes on cash and cash equivalents	(1.9)	17.1
Balance at beginning of year	271.1	272.1
Balance at end of period	290.8	322.2
Consolidated [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities	1,297.8	818.5
Cash flows from investing activities:
Additions to properties	(351.1)	(354)
Proceeds from sales of properties and other assets	4.4	46.1
Other	(50.5)	6
Net intercompany investing activity	0	0
Net cash provided by (used in) investing activities	(397.2)	(301.9)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	6.3	1.1
Dividends paid	(177)	(176.6)
Payments on debt and borrowings	(2.4)	(2,201.5)
Proceeds on debt and borrowings		1,536
Net proceeds from (payments on) revolving credit facilities and commercial paper	(376.1)	282
Change in overdraft balances and other	24.5	(34.2)
Net intercompany financing activity	0	0
Net cash provided by (used in) financing activities	(524.7)	(593.2)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	375.9	(76.6)
Effect of foreign exchange rate changes on cash and cash equivalents	(1.6)	18.6
Balance at beginning of year	418.6	560.9
Balance at end of period	792.9	502.9
Consolidation, Eliminations [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities	(136.8)	(260.6)
Cash flows from investing activities:
Additions to properties	0	0
Proceeds from sales of properties and other assets	0	0
Other	0	0
Net intercompany investing activity	(175.3)	70.8
Net cash provided by (used in) investing activities	(175.3)	70.8
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	0	0
Dividends paid	136.8	260.6
Payments on debt and borrowings	0	0
Proceeds on debt and borrowings		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	175.3	(70.8)
Net cash provided by (used in) financing activities	312.1	189.8
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