Income Tax Net Deferred Tax Assets and Liabilities Components (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Domestic net non-current deferred tax liabilities	$ 925.5	$ 195.0
Foreign net non-current deferred tax assets	42.0	20.2
Foreign net non-current deferred tax liabilities	740.8	573.9
Net non-current deferred tax liabilities	$ 1,624.3	$ 748.7

Represents the non-current portion of deferred tax liabilities, net, foreign.

No definition available.

Name:	tap_DeferredTaxLiabilitiesNetNoncurrentForeign
Namespace Prefix:	tap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant