Supplemental Guarantor Information Income statement (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Sep. 24, 2011	Sep. 29, 2012	Sep. 24, 2011
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Sales	$ 1,685.8	$ 1,393.9	$ 4,134.8	$ 3,774.3
Excise taxes	(490.3)	(439.5)	(1,248.5)	(1,195.9)
Net sales	1,195.5	954.4	2,886.3	2,578.4
Cost of goods sold	(687.0)	(550.5)	(1,705.9)	(1,501.6)
Gross profit	508.5	403.9	1,180.4	1,076.8
Marketing, general and administrative expenses	(300.6)	(248.2)	(853.6)	(759.1)
Special items, net	(35.9)	(0.1)	(58.6)	(11.1)
Equity income in MillerCoors	132.0	99.4	436.5	372.4
Operating income (loss)	304.0	255.0	704.7	679.0
Interest income (expense), net	(54.4)	(27.3)	(162.8)	(81.8)
Other income (expense), net	(6.4)	(2.3)	(78.3)	(4.8)
Income (loss) from continuing operations before income taxes	243.2	225.4	463.6	592.4
Income tax benefit (expense)	(42.5)	(31.1)	(85.7)	(90.4)
Net Income (loss) from continuing operations	200.7	194.3	377.9	502.0
Income (loss) from discontinued operations, net of tax	0.7	2.7	1.6	1.5
Net income (loss) including noncontrolling interests	201.4	197.0	379.5	503.5
Add back (less): Loss (net income) attributable to noncontrolling interests	(3.0)	0.4	3.5	(0.4)
Net income (loss) attributable to MCBC	198.4	197.4	383.0	503.1
Comprehensive income attributable to MCBC	461.7	78.0	708.0	521.5
Parent Guarantor, 2007 and 2012 Issuer [Member]
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Sales	7.4	6.7	20.6	20.5
Excise taxes	0	0	0	0
Net sales	7.4	6.7	20.6	20.5
Cost of goods sold	0	0	0	0
Gross profit	7.4	6.7	20.6	20.5
Marketing, general and administrative expenses	(28.3)	(24.5)	(113.7)	(89.0)
Special items, net	(0.3)	(0.1)	(1.4)	(0.6)
Equity income (loss) in subsidiaries	215.7	230.8	505.9	639.9
Equity income in MillerCoors	0	0	0	0
Operating income (loss)	194.5	212.9	411.4	570.8
Interest income (expense), net	(27.2)	(8.4)	(82.6)	(25.2)
Other income (expense), net	8.8	(0.4)	1.7	0.9
Income (loss) from continuing operations before income taxes	176.1	204.1	330.5	546.5
Income tax benefit (expense)	22.3	(6.7)	52.5	(43.4)
Net Income (loss) from continuing operations	198.4	197.4	383.0	503.1
Income (loss) from discontinued operations, net of tax	0	0	0	0
Net income (loss) including noncontrolling interests	198.4	197.4	383.0	503.1
Add back (less): Loss (net income) attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to MCBC	198.4	197.4	383.0	503.1
Comprehensive income attributable to MCBC	461.7	78.0	708.0	521.5
Subsidiary Guarantors
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Sales	1,311.1	1,367.9	3,622.7	3,708.6
Excise taxes	(401.4)	(424.0)	(1,116.1)	(1,160.9)
Net sales	909.7	943.9	2,506.6	2,547.7
Cost of goods sold	(516.3)	(528.4)	(1,441.1)	(1,433.5)
Gross profit	393.4	415.5	1,065.5	1,114.2
Marketing, general and administrative expenses	(208.2)	(212.2)	(629.9)	(638.1)
Special items, net	(7.0)	0.2	(18.2)	(10.3)
Equity income (loss) in subsidiaries	(79.5)	(117.1)	(378.6)	(344.6)
Equity income in MillerCoors	132.0	99.4	436.5	372.4
Operating income (loss)	230.7	185.8	475.3	493.6
Interest income (expense), net	70.8	70.2	209.0	205.5
Other income (expense), net	(17.9)	(2.8)	(26.8)	(7.5)
Income (loss) from continuing operations before income taxes	283.6	253.2	657.5	691.6
Income tax benefit (expense)	(66.8)	(20.8)	(157.3)	(50.7)
Net Income (loss) from continuing operations	216.8	232.4	500.2	640.9
Income (loss) from discontinued operations, net of tax	0	0	0	0
Net income (loss) including noncontrolling interests	216.8	232.4	500.2	640.9
Add back (less): Loss (net income) attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to MCBC	216.8	232.4	500.2	640.9
Comprehensive income attributable to MCBC	449.2	64.6	794.2	585.0
Subsidiary Non-Guarantors
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Sales	428.4	78.7	651.0	189.9
Excise taxes	(88.9)	(15.5)	(132.4)	(35.0)
Net sales	339.5	63.2	518.6	154.9
Cost of goods sold	(222.2)	(73.4)	(397.4)	(190.3)
Gross profit	117.3	(10.2)	121.2	(35.4)
Marketing, general and administrative expenses	(73.7)	(19.6)	(136.9)	(54.5)
Special items, net	(28.6)	(0.1)	(39.0)	(0.1)
Equity income (loss) in subsidiaries	126.4	152.6	276.1	329.5
Equity income in MillerCoors	0	0	0	0
Operating income (loss)	141.4	122.7	221.4	239.5
Interest income (expense), net	(98.0)	(89.1)	(289.2)	(262.1)
Other income (expense), net	2.7	0.9	(53.2)	1.8
Income (loss) from continuing operations before income taxes	46.1	34.5	(121.0)	(20.8)
Income tax benefit (expense)	2.0	(3.6)	19.1	3.7
Net Income (loss) from continuing operations	48.1	30.9	(101.9)	(17.1)
Income (loss) from discontinued operations, net of tax	0.7	2.7	1.6	1.5
Net income (loss) including noncontrolling interests	48.8	33.6	(100.3)	(15.6)
Add back (less): Loss (net income) attributable to noncontrolling interests	(3.0)	0.4	3.5	(0.4)
Net income (loss) attributable to MCBC	45.8	34.0	(96.8)	(16.0)
Comprehensive income attributable to MCBC	140.3	(16.9)	35.2	9.6
Eliminations
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Sales	(61.1)	(59.4)	(159.5)	(144.7)
Excise taxes	0	0	0	0
Net sales	(61.1)	(59.4)	(159.5)	(144.7)
Cost of goods sold	51.5	51.3	132.6	122.2
Gross profit	(9.6)	(8.1)	(26.9)	(22.5)
Marketing, general and administrative expenses	9.6	8.1	26.9	22.5
Special items, net	0	(0.1)	0	(0.1)
Equity income (loss) in subsidiaries	(262.6)	(266.3)	(403.4)	(624.8)
Equity income in MillerCoors	0	0	0	0
Operating income (loss)	(262.6)	(266.4)	(403.4)	(624.9)
Interest income (expense), net	0	0	0	0
Other income (expense), net	0	0	0	0
Income (loss) from continuing operations before income taxes	(262.6)	(266.4)	(403.4)	(624.9)
Income tax benefit (expense)	0	0	0	0
Net Income (loss) from continuing operations	(262.6)	(266.4)	(403.4)	(624.9)
Income (loss) from discontinued operations, net of tax	0	0	0	0
Net income (loss) including noncontrolling interests	(262.6)	(266.4)	(403.4)	(624.9)
Add back (less): Loss (net income) attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to MCBC	(262.6)	(266.4)	(403.4)	(624.9)
Comprehensive income attributable to MCBC	(589.5)	(47.7)	(829.4)	(594.6)
Consolidated [Member]
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Sales	1,685.8	1,393.9	4,134.8	3,774.3
Excise taxes	(490.3)	(439.5)	(1,248.5)	(1,195.9)
Net sales	1,195.5	954.4	2,886.3	2,578.4
Cost of goods sold	(687.0)	(550.5)	(1,705.9)	(1,501.6)
Gross profit	508.5	403.9	1,180.4	1,076.8
Marketing, general and administrative expenses	(300.6)	(248.2)	(853.6)	(759.1)
Special items, net	(35.9)	(0.1)	(58.6)	(11.1)
Equity income (loss) in subsidiaries	0	0	0	0
Equity income in MillerCoors	132.0	99.4	436.5	372.4
Operating income (loss)	304.0	255.0	704.7	679.0
Interest income (expense), net	(54.4)	(27.3)	(162.8)	(81.8)
Other income (expense), net	(6.4)	(2.3)	(78.3)	(4.8)
Income (loss) from continuing operations before income taxes	243.2	225.4	463.6	592.4
Income tax benefit (expense)	(42.5)	(31.1)	(85.7)	(90.4)
Net Income (loss) from continuing operations	200.7	194.3	377.9	502.0
Income (loss) from discontinued operations, net of tax	0.7	2.7	1.6	1.5
Net income (loss) including noncontrolling interests	201.4	197.0	379.5	503.5
Add back (less): Loss (net income) attributable to noncontrolling interests	(3.0)	0.4	3.5	(0.4)
Net income (loss) attributable to MCBC	198.4	197.4	383.0	503.1
Comprehensive income attributable to MCBC	$ 461.7	$ 78.0	$ 708.0	$ 521.5