This element represents the maximum percentage of contribution made by the employer towards defined contribution plan.

No definition available.

Name:	tap_DefinedContributionPensionPlanPercentageOfEmployerContributionsHighEndOfRange
Namespace Prefix:	tap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents the minimum percentage of contribution made by the employer towards defined contribution plan.

+ References

No definition available.

+ Details

Name:	tap_DefinedContributionPensionPlanPercentageOfEmployerContributionsLowEndOfRange
Namespace Prefix:	tap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

+ Details

Name:	us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_DefinedContributionPlanNameAxis=tap_CanadaDefinedContributionPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DefinedContributionPlanNameAxis=tap_UnitedStatesDefinedContributionPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Employee Retirement Plans and Postretirement Benefits Defined Contribution Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, contribution during the period	$ 17.6	$ 19.0	$ 20.5
U.K. and Canadian Defined Contribution Plans
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, contributions by employer, low end of the range (as a percent)	3.00%
Defined contribution plan, contributions by employer, high end of the range (as a percent)	8.50%
U.S. defined contribution plans
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, contributions by employer, low end of the range (as a percent)	5.00%
Defined contribution plan, contributions by employer, high end of the range (as a percent)	9.00%