Supplemental Guarantor Information Income statement (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 25, 2011	Jun. 30, 2012	Jun. 25, 2011
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Sales	$ 1,440.9	$ 1,383.1	$ 2,449.0	$ 2,380.4
Excise taxes	(441.5)	(449.5)	(758.2)	(756.4)
Net sales	999.4	933.6	1,690.8	1,624.0
Cost of goods sold	(580.1)	(523.9)	(1,018.9)	(951.1)
Gross profit	419.3	409.7	671.9	672.9
Marketing, general and administrative expenses	(304.8)	(272.5)	(553.0)	(510.9)
Special items, net	(21.2)	(11.0)	(22.7)	(11.0)
Equity income in MillerCoors	185.6	171.8	304.5	273.0
Operating income (loss)	278.9	298.0	400.7	424.0
Interest income (expense), net	(84.6)	(27.7)	(108.4)	(54.5)
Other income (expense), net	(70.5)	(1.8)	(71.9)	(2.5)
Income (loss) from continuing operations before income taxes	123.8	268.5	220.4	367.0
Income tax benefit (expense)	(25.9)	(43.2)	(43.2)	(59.3)
Net Income (loss) from continuing operations	97.9	225.3	177.2	307.7
Income (loss) from discontinued operations, net of tax	0.8	(1.5)	0.9	(1.2)
Net income (loss) including noncontrolling interests	98.7	223.8	178.1	306.5
Add back (less): Loss (net income) attributable to noncontrolling interests	6.4	(1.0)	6.5	(0.8)
Net income (loss) attributable to MCBC	105.1	222.8	184.6	305.7
Comprehensive income attributable to MCBC	55.7	190.1	246.3	443.5
Parent Guarantor, 2007 and 2012 Issuer [Member]
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Sales	7.7	8.0	13.2	13.8
Excise taxes	0	0	0	0
Net sales	7.7	8.0	13.2	13.8
Cost of goods sold	0	0	0	0
Gross profit	7.7	8.0	13.2	13.8
Marketing, general and administrative expenses	(50.9)	(31.8)	(85.4)	(64.5)
Special items, net	0	(0.5)	(1.1)	(0.5)
Equity income (loss) in subsidiaries	205.3	223.2	290.2	409.1
Equity income in MillerCoors	0	0	0	0
Operating income (loss)	162.1	198.9	216.9	357.9
Interest income (expense), net	(55.4)	(8.4)	(55.4)	(16.8)
Other income (expense), net	(19.2)	(0.1)	(7.1)	1.3
Income (loss) from continuing operations before income taxes	87.5	190.4	154.4	342.4
Income tax benefit (expense)	17.6	32.4	30.2	(36.7)
Net Income (loss) from continuing operations	105.1	222.8	184.6	305.7
Income (loss) from discontinued operations, net of tax	0	0	0	0
Net income (loss) including noncontrolling interests	105.1	222.8	184.6	305.7
Add back (less): Loss (net income) attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to MCBC	105.1	222.8	184.6	305.7
Comprehensive income attributable to MCBC	55.7	190.1	246.3	443.5
Subsidiary Guarantors
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Sales	1,328.9	1,340.8	2,311.6	2,340.7
Excise taxes	(410.8)	(434.3)	(714.7)	(736.9)
Net sales	918.1	906.5	1,596.9	1,603.8
Cost of goods sold	(508.2)	(488.5)	(924.8)	(905.1)
Gross profit	409.9	418.0	672.1	698.7
Marketing, general and administrative expenses	(219.7)	(226.5)	(421.7)	(425.9)
Special items, net	(10.8)	(10.5)	(11.2)	(10.5)
Equity income (loss) in subsidiaries	(181.6)	(99.8)	(299.1)	(227.5)
Equity income in MillerCoors	185.6	171.8	304.5	273.0
Operating income (loss)	183.4	253.0	244.6	307.8
Interest income (expense), net	64.1	56.5	138.2	135.3
Other income (expense), net	3.8	(2.3)	(8.9)	(4.7)
Income (loss) from continuing operations before income taxes	251.3	307.2	373.9	438.4
Income tax benefit (expense)	(52.8)	(84.5)	(90.5)	(29.9)
Net Income (loss) from continuing operations	198.5	222.7	283.4	408.5
Income (loss) from discontinued operations, net of tax	0	0	0	0
Net income (loss) including noncontrolling interests	198.5	222.7	283.4	408.5
Add back (less): Loss (net income) attributable to noncontrolling interests	0	0.7	0	0
Net income (loss) attributable to MCBC	198.5	223.4	283.4	408.5
Comprehensive income attributable to MCBC	125.6	44.1	345.0	520.4
Subsidiary Non-Guarantors
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Sales	162.9	85.5	222.6	111.2
Excise taxes	(30.7)	(15.2)	(43.5)	(19.5)
Net sales	132.2	70.3	179.1	91.7
Cost of goods sold	(120.7)	(78.1)	(175.2)	(116.9)
Gross profit	11.5	(7.8)	3.9	(25.2)
Marketing, general and administrative expenses	(44.0)	(22.7)	(63.2)	(34.9)
Special items, net	(10.4)	0	(10.4)	0
Equity income (loss) in subsidiaries	123.7	132.7	149.7	176.9
Equity income in MillerCoors	0	0	0	0
Operating income (loss)	80.8	102.2	80.0	116.8
Interest income (expense), net	(93.3)	(75.8)	(191.2)	(173.0)
Other income (expense), net	(55.1)	0.6	(55.9)	0.9
Income (loss) from continuing operations before income taxes	(67.6)	27.0	(167.1)	(55.3)
Income tax benefit (expense)	9.3	8.9	17.1	7.3
Net Income (loss) from continuing operations	(58.3)	35.9	(150.0)	(48.0)
Income (loss) from discontinued operations, net of tax	0.8	(1.5)	0.9	(1.2)
Net income (loss) including noncontrolling interests	(57.5)	34.4	(149.1)	(49.2)
Add back (less): Loss (net income) attributable to noncontrolling interests	6.4	(1.7)	6.5	(0.8)
Net income (loss) attributable to MCBC	(51.1)	32.7	(142.6)	(50.0)
Comprehensive income attributable to MCBC	(4.5)	112.4	(105.1)	26.5
Eliminations
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Sales	(58.6)	(51.2)	(98.4)	(85.3)
Excise taxes	0	0	0	0
Net sales	(58.6)	(51.2)	(98.4)	(85.3)
Cost of goods sold	48.8	42.7	81.1	70.9
Gross profit	(9.8)	(8.5)	(17.3)	(14.4)
Marketing, general and administrative expenses	9.8	8.5	17.3	14.4
Special items, net	0	0	0	0
Equity income (loss) in subsidiaries	(147.4)	(256.1)	(140.8)	(358.5)
Equity income in MillerCoors	0	0	0	0
Operating income (loss)	(147.4)	(256.1)	(140.8)	(358.5)
Interest income (expense), net	0	0	0	0
Other income (expense), net	0	0	0	0
Income (loss) from continuing operations before income taxes	(147.4)	(256.1)	(140.8)	(358.5)
Income tax benefit (expense)	0	0	0	0
Net Income (loss) from continuing operations	(147.4)	(256.1)	(140.8)	(358.5)
Income (loss) from discontinued operations, net of tax	0	0	0	0
Net income (loss) including noncontrolling interests	(147.4)	(256.1)	(140.8)	(358.5)
Add back (less): Loss (net income) attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to MCBC	(147.4)	(256.1)	(140.8)	(358.5)
Comprehensive income attributable to MCBC	(121.1)	(156.5)	(239.9)	(546.9)
Consolidated [Member]
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Sales	1,440.9	1,383.1	2,449.0	2,380.4
Excise taxes	(441.5)	(449.5)	(758.2)	(756.4)
Net sales	999.4	933.6	1,690.8	1,624.0
Cost of goods sold	(580.1)	(523.9)	(1,018.9)	(951.1)
Gross profit	419.3	409.7	671.9	672.9
Marketing, general and administrative expenses	(304.8)	(272.5)	(553.0)	(510.9)
Special items, net	(21.2)	(11.0)	(22.7)	(11.0)
Equity income (loss) in subsidiaries	0	0	0	0
Equity income in MillerCoors	185.6	171.8	304.5	273.0
Operating income (loss)	278.9	298.0	400.7	424.0
Interest income (expense), net	(84.6)	(27.7)	(108.4)	(54.5)
Other income (expense), net	(70.5)	(1.8)	(71.9)	(2.5)
Income (loss) from continuing operations before income taxes	123.8	268.5	220.4	367.0
Income tax benefit (expense)	(25.9)	(43.2)	(43.2)	(59.3)
Net Income (loss) from continuing operations	97.9	225.3	177.2	307.7
Income (loss) from discontinued operations, net of tax	0.8	(1.5)	0.9	(1.2)
Net income (loss) including noncontrolling interests	98.7	223.8	178.1	306.5
Add back (less): Loss (net income) attributable to noncontrolling interests	6.4	(1.0)	6.5	(0.8)
Net income (loss) attributable to MCBC	105.1	222.8	184.6	305.7
Comprehensive income attributable to MCBC	$ 55.7	$ 190.1	$ 246.3	$ 443.5