Name:	tap_AcquiredIndefiniteLivedIntangibleAssetAbstract
Namespace Prefix:	tap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Name:	tap_FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems
Namespace Prefix:	tap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate gross carrying amount of intangible assets subject to amortization and not subject to amortization.

+ References

No definition available.

+ Details

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

- Definition

The aggregate cost of a major indefinite-lived intangible asset class acquired, during the period, either individually or as part of a group of assets (in either an asset acquisition or business combination).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 44

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_AcquiredIndefiniteLivedIntangibleAssetAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

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

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph ((a)(1),(b))

-URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 42, 45

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_IntangibleAssetsNetExcludingGoodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The aggregate amount provided for estimated restructuring charges, remediation costs, and asset impairment loss during an accounting period. Generally, these items are either unusual or infrequent, but not both (in which case they would be extraordinary items).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

+ Details

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

Goodwill and Intangible Assets Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended												0 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended			9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended			9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended			0 Months Ended		9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Dec. 29, 2012	Sep. 28, 2013 Distribution Networks [Member]	Dec. 29, 2012 Distribution Networks [Member]	Sep. 28, 2013 Brands [Member]	Dec. 29, 2012 Brands [Member]	Jun. 15, 2012 Brands [Member] Molson Coors Central Europe (MCCE)	Sep. 28, 2013 Other [Member]	Dec. 29, 2012 Other [Member]	Sep. 28, 2013 Brands [Member]	Dec. 29, 2012 Brands [Member]	Jun. 15, 2012 Brands [Member] Molson Coors Central Europe (MCCE)	Sep. 28, 2013 Brands [Member] Minimum [Member]	Dec. 29, 2012 Brands [Member] Minimum [Member]	Sep. 28, 2013 Brands [Member] Maximum [Member]	Dec. 29, 2012 Brands [Member] Maximum [Member]	Sep. 28, 2013 Distribution Rights [Member]	Dec. 29, 2012 Distribution Rights [Member]	Sep. 28, 2013 Distribution Rights [Member] Minimum [Member]	Dec. 29, 2012 Distribution Rights [Member] Minimum [Member]	Sep. 28, 2013 Distribution Rights [Member] Maximum [Member]	Dec. 29, 2012 Distribution Rights [Member] Maximum [Member]	Sep. 28, 2013 Patents And Technology And Distribution Channels [Member]	Dec. 29, 2012 Patents And Technology And Distribution Channels [Member]	Sep. 28, 2013 Patents And Technology And Distribution Channels [Member] Minimum [Member]	Dec. 29, 2012 Patents And Technology And Distribution Channels [Member] Minimum [Member]	Sep. 28, 2013 Patents And Technology And Distribution Channels [Member] Maximum [Member]	Dec. 29, 2012 Patents And Technology And Distribution Channels [Member] Maximum [Member]	Sep. 28, 2013 Favorable contracts, land use rights and other [Member]	Dec. 29, 2012 Favorable contracts, land use rights and other [Member]	Jun. 15, 2012 Favorable contracts, land use rights and other [Member] Molson Coors Central Europe (MCCE)	Sep. 28, 2013 Favorable contracts, land use rights and other [Member] Molson Coors Central Europe (MCCE)	Sep. 28, 2013 Favorable contracts, land use rights and other [Member] Minimum [Member]	Dec. 29, 2012 Favorable contracts, land use rights and other [Member] Minimum [Member]	Sep. 28, 2013 Favorable contracts, land use rights and other [Member] Maximum [Member]	Dec. 29, 2012 Favorable contracts, land use rights and other [Member] Maximum [Member]
Details of intangible assets, other than goodwill:
Restructuring, Settlement and Impairment Provisions	$ 163.0	$ 35.9	$ 165.8	$ 58.6
Intangible assets subject to amortization:
Finite-Lived Intangible Assets, Gross													539.2	480.6	145.6					340.4	350.8					35.3	35.3					12.8	13.6		12.0
Total Gross	7,494.1		7,494.1		7,732.0
Accumulated amortization	(520.4)		(520.4)		(497.2)								(219.8)	(205.7)						(258.0)	(255.0)					(31.8)	(31.1)					(10.8)	(5.4)
Net													319.4	274.9						82.4	95.8					3.5	4.2					2.0	8.2
Total Net	6,973.7		6,973.7		7,234.8
Useful life - minimum (in years)															30 years	3 years	3 years	40 years	40 years			2 years	2 years	23 years	23 years			3 years	3 years	10 years	10 years			1 year 6 months		2 years	2 years	42 years	42 years
Intangible assets not subject to amortization:
Acquired Indefinite-lived Intangible Asset, Amount						$ 981.6	$ 1,014.7	$ 5,569.5	$ 5,821.6	$ 2,323.4	$ 15.3	$ 15.4	$ 5,569.5	$ 5,821.6