Supplemental Guarantor Information Cash Flows (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	$ 461.5	$ 1,058.4
Cash flows from investing activities:
Additions to properties	(208.3)	(195.8)
Proceeds from sales of properties and other assets	8.8	6.0
Payments to Acquire Businesses, Net of Cash Acquired	91.2	0.0
Proceeds from Divestiture of Businesses	8.7	0.0
Investment in MillerCoors	(1,144.5)	(1,100.4)
Loan repayments	26.1	7.1
Loan advances	(29.9)	(14.6)
Other	(3.3)	0.0
Net cash used in investing activities	(345.4)	(237.9)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	31.2	38.5
Excess tax benefits from share-based compensation	8.5	6.6
Dividends paid	(228.1)	(205.1)
Payments for the Repurchase of Treasury Stock	(100.1)	0.0
Proceeds from Issuance of Long-term Debt	679.9	0.0
Repayments of Long-term Debt	(676.4)	(61.6)
Payments on short-term borrowings	(19.7)	(23.3)
Payments on settlement of derivative instruments	0.0	(65.2)
Net proceeds from (payments on) revolving credit facilities and commercial paper	17.1	(350.5)
Net cash provided by (used in) financing activities	(310.1)	(513.2)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	(194.0)	307.3
Effect of foreign exchange rate changes on cash and cash equivalents	(37.0)	(27.5)
Balance at beginning of year	624.6	442.3
Balance at end of period	393.6	722.1
Parent Guarantor and 2012 Issuer [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	324.0	365.4
Cash flows from investing activities:
Additions to properties	(8.7)	(8.2)
Proceeds from sales of properties and other assets	0.0	0.0
Payments to Acquire Businesses, Net of Cash Acquired	0.0
Proceeds from Divestiture of Businesses	0.0
Investment in MillerCoors	0.0	0.0
Return of capital from MillerCoors	0.0	0.0
Payments for (Proceeds from) Businesses and Interest in Affiliates		0.0
Loan repayments	0.0	0.0
Loan advances	0.0	0.0
Other	0.0
Net intercompany investing activity	(56.3)	(39.2)
Net cash used in investing activities	(65.0)	(47.4)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	31.2	38.5
Excess tax benefits from share-based compensation	8.5	6.6
Dividends paid	(203.8)	(181.4)
Payments for the Repurchase of Treasury Stock	(100.1)
Proceeds from Issuance of Long-term Debt	0.0
Repayments of Long-term Debt	0.0	0.0
Proceeds from short-term borrowings	0.0	0.0
Payments on short-term borrowings	0.0	0.0
Payments on settlement of derivative instruments		0.0
Net proceeds from (payments on) revolving credit facilities and commercial paper	10.0	(218.3)
Change in overdraft balances and other	(0.6)	(2.6)
Net intercompany financing activity	0.0	0.0
Net cash provided by (used in) financing activities	(254.8)	(357.2)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	4.2	(39.2)
Effect of foreign exchange rate changes on cash and cash equivalents	0.0	0.0
Balance at beginning of year	40.9	90.6
Balance at end of period	45.1	51.4
Subsidiary Guarantors [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	178.3	560.4
Cash flows from investing activities:
Additions to properties	(117.3)	(103.9)
Proceeds from sales of properties and other assets	3.2	3.8
Payments to Acquire Businesses, Net of Cash Acquired	46.4
Proceeds from Divestiture of Businesses	8.7
Investment in MillerCoors	(1,144.5)	(1,100.4)
Return of capital from MillerCoors	1,088.2	1,053.9
Payments for (Proceeds from) Businesses and Interest in Affiliates		0.0
Loan repayments	6.5	7.1
Loan advances	(7.1)	(6.7)
Other	(4.1)
Net intercompany investing activity	(186.5)	90.3
Net cash used in investing activities	(399.3)	(55.9)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	0.0	0.0
Excess tax benefits from share-based compensation	0.0	0.0
Dividends paid	(267.5)	(24.0)
Payments for the Repurchase of Treasury Stock	0.0
Proceeds from Issuance of Long-term Debt	679.9
Repayments of Long-term Debt	(676.4)	(61.4)
Proceeds from short-term borrowings	0.0	0.0
Payments on short-term borrowings	0.0	0.0
Payments on settlement of derivative instruments		(65.2)
Net proceeds from (payments on) revolving credit facilities and commercial paper	0.0	0.0
Change in overdraft balances and other	(2.4)	(0.5)
Net intercompany financing activity	223.5	(98.0)
Net cash provided by (used in) financing activities	(42.9)	(249.1)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	(263.9)	255.4
Effect of foreign exchange rate changes on cash and cash equivalents	(28.0)	(16.7)
Balance at beginning of year	470.7	248.7
Balance at end of period	178.8	487.4
Subsidiary Non Guarantors [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	226.7	194.8
Cash flows from investing activities:
Additions to properties	(82.3)	(83.7)
Proceeds from sales of properties and other assets	5.6	2.2
Payments to Acquire Businesses, Net of Cash Acquired	44.8
Proceeds from Divestiture of Businesses	0.0
Investment in MillerCoors	0.0	0.0
Return of capital from MillerCoors	0.0	0.0
Payments for (Proceeds from) Businesses and Interest in Affiliates		(5.9)
Loan repayments	19.6	0.0
Loan advances	(22.8)	(7.9)
Other	0.8
Net intercompany investing activity	(167.2)	137.2
Net cash used in investing activities	(291.1)	53.7
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	0.0	0.0
Excess tax benefits from share-based compensation	0.0	0.0
Dividends paid	(24.3)	(61.9)
Payments for the Repurchase of Treasury Stock	0.0
Proceeds from Issuance of Long-term Debt	0.0
Repayments of Long-term Debt	0.0	(0.2)
Proceeds from short-term borrowings	33.1	35.5
Payments on short-term borrowings	(19.7)	(23.3)
Payments on settlement of derivative instruments		0.0
Net proceeds from (payments on) revolving credit facilities and commercial paper	7.1	(132.2)
Change in overdraft balances and other	(52.6)	115.0
Net intercompany financing activity	186.5	(90.3)
Net cash provided by (used in) financing activities	130.1	(157.4)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	65.7	91.1
Effect of foreign exchange rate changes on cash and cash equivalents	(9.0)	(10.8)
Balance at beginning of year	113.0	103.0
Balance at end of period	169.7	183.3
Eliminations [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	(267.5)	(62.2)
Cash flows from investing activities:
Additions to properties	0.0	0.0
Proceeds from sales of properties and other assets	0.0	0.0
Payments to Acquire Businesses, Net of Cash Acquired	0.0
Proceeds from Divestiture of Businesses	0.0
Investment in MillerCoors	0.0	0.0
Return of capital from MillerCoors	0.0	0.0
Payments for (Proceeds from) Businesses and Interest in Affiliates		0.0
Loan repayments	0.0	0.0
Loan advances	0.0	0.0
Other	0.0
Net intercompany investing activity	410.0	(188.3)
Net cash used in investing activities	410.0	(188.3)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	0.0	0.0
Excess tax benefits from share-based compensation	0.0	0.0
Dividends paid	267.5	62.2
Payments for the Repurchase of Treasury Stock	0.0
Proceeds from Issuance of Long-term Debt	0.0
Repayments of Long-term Debt	0.0	0.0
Proceeds from short-term borrowings	0.0	0.0
Payments on short-term borrowings	0.0	0.0
Payments on settlement of derivative instruments		0.0
Net proceeds from (payments on) revolving credit facilities and commercial paper	0.0	0.0
Change in overdraft balances and other	0.0	0.0
Net intercompany financing activity	(410.0)	188.3
Net cash provided by (used in) financing activities	(142.5)	250.5
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	0.0	0.0
Effect of foreign exchange rate changes on cash and cash equivalents	0.0	0.0
Balance at beginning of year	0.0	0.0
Balance at end of period	0.0	0.0
Consolidated [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by (used in) operating activities	461.5	1,058.4
Cash flows from investing activities:
Additions to properties	(208.3)	(195.8)
Proceeds from sales of properties and other assets	8.8	6.0
Payments to Acquire Businesses, Net of Cash Acquired	91.2
Proceeds from Divestiture of Businesses	8.7
Investment in MillerCoors	(1,144.5)	(1,100.4)
Return of capital from MillerCoors	1,088.2	1,053.9
Payments for (Proceeds from) Businesses and Interest in Affiliates		(5.9)
Loan repayments	26.1	7.1
Loan advances	(29.9)	(14.6)
Other	(3.3)
Net intercompany investing activity	0.0	0.0
Net cash used in investing activities	(345.4)	(237.9)
Cash flows from financing activities:
Exercise of stock options under equity compensation plans	31.2	38.5
Excess tax benefits from share-based compensation	8.5	6.6
Dividends paid	(228.1)	(205.1)
Payments for the Repurchase of Treasury Stock	(100.1)
Proceeds from Issuance of Long-term Debt	679.9
Repayments of Long-term Debt	(676.4)	(61.6)
Proceeds from short-term borrowings	33.1	35.5
Payments on short-term borrowings	(19.7)	(23.3)
Payments on settlement of derivative instruments		(65.2)
Net proceeds from (payments on) revolving credit facilities and commercial paper	17.1	(350.5)
Change in overdraft balances and other	(55.6)	111.9
Net intercompany financing activity	0.0	0.0
Net cash provided by (used in) financing activities	(310.1)	(513.2)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents	(194.0)	307.3
Effect of foreign exchange rate changes on cash and cash equivalents	(37.0)	(27.5)
Balance at beginning of year	624.6	442.3
Balance at end of period	$ 393.6	$ 722.1