Investments Narrative (Details) (USD $) In Millions, unless otherwise specified	Sep. 28, 2013 VIE	Dec. 29, 2012 VIE
Schedule of Equity Method Investments [Line Items]
Number of Variable Interest Entities	0	0
MillerCoors
Schedule of Equity Method Investments [Line Items]
Net payables due to MillerCoors	$ 3.2	$ 0.8

This item represents the amount of intercompany net receivables due on transactions between the Entity and unconsolidated subsidiaries (including certain corporate joint ventures, and noncontrolled corporations), accounted for under the equity method of accounting, which have not been eliminated in preparing the Entity's financial statements.

No definition available.

Name:	tap_EquityMethodInvestmentsIntercompanyTransactionsNetReceivablesDue
Namespace Prefix:	tap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant