Supplemental Guarantor Information Cash Flows (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 25, 2011
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	$ 397.4	$ 271.8
Cash flows from investing activities:
Additions to properties	(81.4)	(72.5)
Proceeds from sales of properties and intangible assets	1.3	1.2
Acquisition of businesses, net of cash acquired	(2,257.4)	(41.3)
Change in restricted cash balance	0	2.7
Investment in MillerCoors	(565.7)	(470.4)
Proceeds from (payments on) settlement of derivatives	0	15.4
Investment in and advances to an unconsolidated affiliate	(3.7)	(5.7)
Trade loan repayments from customers	9.5	7.6
Trade loans advanced to customers	(4.6)	(5.2)
Net cash provided by (used in) investing activities	(2,552.7)	(191.8)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	20.8	6.3
Excess tax benefits from share-based compensation	3.5	0.9
Dividends paid	(115.9)	(112.1)
Dividends paid to noncontrolling interests holders	(2.9)	(1.5)
Debt issue costs	(39.2)	(2.2)
Proceeds from issuances of long-term debt	2,195.4	0
Payments on long-term debt and capital lease obligations	(44.8)	0
Payments on debt assumed in acquisition	(424.3)	0
Payments on short-term borrowings	(13.5)	(15.3)
Payments on settlement of derivative instruments	(4.0)	0
Net (payments) proceeds from revolving credit facilities	3.9	2.6
Net cash provided by (used in) financing activities	1,583.6	(125.3)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	(571.7)	(45.3)
Effect of foreign exchange rate changes on cash and cash equivalents	8.8	11.9
Balance at beginning of year	1,078.9	1,217.6
Balance at end of period	516.0	1,184.2
Parent Guarantor, 2007 and 2012 Issuer [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	374.8	127.3
Cash flows from investing activities:
Additions to properties	(5.4)	(1.6)
Proceeds from sales of properties and intangible assets	0	0
Acquisition of businesses, net of cash acquired	0	0
Change in restricted cash balance		0
Investment in MillerCoors	0	0
Return of capital from MillerCoors	0	0
Proceeds from (payments on) settlement of derivatives	0	15.4
Investment in and advances to an unconsolidated affiliate	0	0
Trade loan repayments from customers	0	0
Trade loans advanced to customers	0	0
Other		0
Net intercompany investing activity	(2,811.6)	0.1
Net cash provided by (used in) investing activities	(2,817.0)	13.9
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	20.8	6.3
Excess tax benefits from share-based compensation	3.5	0.9
Dividends paid	(108.6)	(99.1)
Dividends paid to noncontrolling interests holders	0	0
Debt issue costs	(39.2)	(2.2)
Proceeds from issuances of long-term debt	2,045.4
Payments on long-term debt and capital lease obligations	0
Payments on debt assumed in acquisition	0
Proceeds from short-term borrowings	0	0
Payments on short-term borrowings	0
Payments on settlement of derivative instruments	0
Net (payments) proceeds from revolving credit facilities	0	0
Changes in overdraft balances and other	0	0
Net intercompany financing activity	0	0
Net cash provided by (used in) financing activities	1,921.9	(94.1)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	(520.3)	47.1
Effect of foreign exchange rate changes on cash and cash equivalents	0	0
Balance at beginning of year	601.1	832.0
Balance at end of period	80.8	879.1
Subsidiary Guarantors
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	664.9	(696.5)
Cash flows from investing activities:
Additions to properties	(63.3)	(50.0)
Proceeds from sales of properties and intangible assets	1.0	0
Acquisition of businesses, net of cash acquired	0	0
Change in restricted cash balance		0
Investment in MillerCoors	(565.7)	(470.4)
Return of capital from MillerCoors	459.9	(376.4)
Proceeds from (payments on) settlement of derivatives	(110.6)	0
Investment in and advances to an unconsolidated affiliate	(2.6)	0
Trade loan repayments from customers	9.5	1.3
Trade loans advanced to customers	(4.6)	(0.1)
Other		0
Net intercompany investing activity	(2,659.9)	2,251.2
Net cash provided by (used in) investing activities	(2,936.3)	2,108.4
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	0	0
Excess tax benefits from share-based compensation	0	0
Dividends paid	(97.5)	0
Dividends paid to noncontrolling interests holders	(2.9)	0
Debt issue costs	0	0
Proceeds from issuances of long-term debt	0
Payments on long-term debt and capital lease obligations	(44.8)
Payments on debt assumed in acquisition	0
Proceeds from short-term borrowings	0	0
Payments on short-term borrowings	0
Payments on settlement of derivative instruments	(4.0)
Net (payments) proceeds from revolving credit facilities	0	0
Changes in overdraft balances and other	0	0
Net intercompany financing activity	2,178.2	(1,497.8)
Net cash provided by (used in) financing activities	2,029.0	(1,497.8)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	(242.4)	(85.9)
Effect of foreign exchange rate changes on cash and cash equivalents	6.2	2.5
Balance at beginning of year	422.5	349.5
Balance at end of period	186.3	266.1
Subsidiary Non-Guarantors
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	(547.9)	975.5
Cash flows from investing activities:
Additions to properties	(12.7)	(20.9)
Proceeds from sales of properties and intangible assets	0.3	1.2
Acquisition of businesses, net of cash acquired	(2,257.4)	(41.3)
Change in restricted cash balance		2.7
Investment in MillerCoors	0	0
Return of capital from MillerCoors	0	0
Proceeds from (payments on) settlement of derivatives	0	0
Investment in and advances to an unconsolidated affiliate	(1.1)	(5.7)
Trade loan repayments from customers	0	6.3
Trade loans advanced to customers	0	(5.1)
Other		0
Net intercompany investing activity	0	1,497.6
Net cash provided by (used in) investing activities	(2,270.9)	1,434.8
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	0	0
Excess tax benefits from share-based compensation	0	0
Dividends paid	(4.2)	(147.5)
Dividends paid to noncontrolling interests holders	0	(1.5)
Debt issue costs	0	0
Proceeds from issuances of long-term debt	150.0
Payments on long-term debt and capital lease obligations	0
Payments on debt assumed in acquisition	(424.3)
Proceeds from short-term borrowings	2.5	(8.5)
Payments on short-term borrowings	(13.5)
Payments on settlement of derivative instruments	0
Net (payments) proceeds from revolving credit facilities	3.9	2.6
Changes in overdraft balances and other	2.1	(10.8)
Net intercompany financing activity	3,293.3	(2,251.1)
Net cash provided by (used in) financing activities	3,009.8	(2,416.8)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	191.0	(6.5)
Effect of foreign exchange rate changes on cash and cash equivalents	2.6	9.4
Balance at beginning of year	55.3	36.1
Balance at end of period	248.9	39.0
Eliminations
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	(94.4)	(134.5)
Cash flows from investing activities:
Additions to properties	0	0
Proceeds from sales of properties and intangible assets	0	0
Acquisition of businesses, net of cash acquired	0	0
Change in restricted cash balance		0
Investment in MillerCoors	0	0
Return of capital from MillerCoors	0	0
Proceeds from (payments on) settlement of derivatives	0	0
Investment in and advances to an unconsolidated affiliate	0	0
Trade loan repayments from customers	0	0
Trade loans advanced to customers	0	0
Other		0
Net intercompany investing activity	5,471.5	(3,748.9)
Net cash provided by (used in) investing activities	5,471.5	(3,748.9)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	0	0
Excess tax benefits from share-based compensation	0	0
Dividends paid	94.4	134.5
Dividends paid to noncontrolling interests holders	0	0
Debt issue costs	0	0
Proceeds from issuances of long-term debt	0
Payments on long-term debt and capital lease obligations	0
Payments on debt assumed in acquisition	0
Proceeds from short-term borrowings	0	0
Payments on short-term borrowings	0
Payments on settlement of derivative instruments	0
Net (payments) proceeds from revolving credit facilities	0	0
Changes in overdraft balances and other	0	0
Net intercompany financing activity	(5,471.5)	3,748.9
Net cash provided by (used in) financing activities	(5,377.1)	3,883.4
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	0	0
Effect of foreign exchange rate changes on cash and cash equivalents	0	0
Balance at beginning of year	0	0
Balance at end of period	0	0
Consolidated [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	397.4	271.8
Cash flows from investing activities:
Additions to properties	(81.4)	(72.5)
Proceeds from sales of properties and intangible assets	1.3	1.2
Acquisition of businesses, net of cash acquired	(2,257.4)	(41.3)
Change in restricted cash balance		2.7
Investment in MillerCoors	(565.7)	(470.4)
Return of capital from MillerCoors	459.9	(376.4)
Proceeds from (payments on) settlement of derivatives	(110.6)	15.4
Investment in and advances to an unconsolidated affiliate	(3.7)	(5.7)
Trade loan repayments from customers	9.5	7.6
Trade loans advanced to customers	(4.6)	(5.2)
Other		0
Net intercompany investing activity	0	0
Net cash provided by (used in) investing activities	(2,552.7)	(191.8)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	20.8	6.3
Excess tax benefits from share-based compensation	3.5	0.9
Dividends paid	(115.9)	(112.1)
Dividends paid to noncontrolling interests holders	(2.9)	(1.5)
Debt issue costs	(39.2)	(2.2)
Proceeds from issuances of long-term debt	2,195.4
Payments on long-term debt and capital lease obligations	(44.8)
Payments on debt assumed in acquisition	(424.3)
Proceeds from short-term borrowings	2.5	(8.5)
Payments on short-term borrowings	(13.5)
Payments on settlement of derivative instruments	(4.0)
Net (payments) proceeds from revolving credit facilities	3.9	2.6
Changes in overdraft balances and other	2.1	(10.8)
Net intercompany financing activity	0	0
Net cash provided by (used in) financing activities	1,583.6	(125.3)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	(571.7)	(45.3)
Effect of foreign exchange rate changes on cash and cash equivalents	8.8	11.9
Balance at beginning of year	1,078.9	1,217.6
Balance at end of period	$ 516.0	$ 1,184.2