Supplemental Guarantor Information Cash Flows (Details) - USD ($)	3 Months Ended	6 Months Ended	9 Months Ended
	Mar. 31, 2016	Jun. 30, 2016	Sep. 30, 2016	Sep. 30, 2015
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities	$ (88,300,000)	$ 282,400,000	$ 630,200,000	$ 479,000,000
Cash flows from investing activities:
Additions to properties			(188,900,000)	(208,300,000)
Proceeds from sales of properties and other assets			155,400,000	8,800,000
Acquisition of businesses, net of cash acquired			0	(91,200,000)
Proceeds from Sale of Business			6,600,000	8,700,000
Investment in MillerCoors			(1,253,700,000)	(1,144,500,000)
Return of capital from MillerCoors			1,089,700,000	1,088,200,000
Other			2,000,000	(7,100,000)
Net cash provided by investing activities			(188,900,000)	(345,400,000)
Cash flows from financing activities:
Proceeds from issuance of common stock, net			2,525,600,000	0
Exercise of stock options under equity compensation plans			8,200,000	31,200,000
Dividends paid			(264,600,000)	(228,100,000)
Payments for purchase of Treasury Stock			0	(100,100,000)
Debt issuance costs			60,200,000	0
Payments on debt and borrowings			(23,300,000)	(696,100,000)
Proceeds on debt and borrowings			6,971,900,000	713,000,000
Net proceeds from (payments on) revolving credit facilities and commercial paper			1,600,000	17,100,000
Change in overdraft balances and other			(39,100,000)	(64,600,000)
Net cash provided by (used in) financing activities	2,458,500,000	2,338,600,000	9,120,100,000	(327,600,000)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents			9,561,400,000	(194,000,000)
Effect of foreign exchange rate changes on cash and cash equivalents			(10,800,000)	(37,000,000)
Balance at beginning of year	430,900,000	430,900,000	430,900,000	624,600,000
Balance at end of period			9,981,500,000	393,600,000
Parent Guarantor and 2012 Issuer [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities			728,400,000	341,500,000
Cash flows from investing activities:
Additions to properties			(12,000,000)	(8,700,000)
Proceeds from sales of properties and other assets			0	0
Acquisition of businesses, net of cash acquired				0
Proceeds from Sale of Business			0	0
Investment in MillerCoors			0	0
Return of capital from MillerCoors			0	0
Other			1,500,000	0
Net intercompany investing activity			(1,771,200,000)	(56,300,000)
Net cash provided by investing activities			(1,781,700,000)	(65,000,000)
Cash flows from financing activities:
Proceeds from issuance of common stock, net			2,525,600,000
Exercise of stock options under equity compensation plans			8,200,000	31,200,000
Dividends paid			(241,800,000)	(203,800,000)
Payments for purchase of Treasury Stock				(100,100,000)
Debt issuance costs			55,700,000
Payments on debt and borrowings			0	0
Proceeds on debt and borrowings			6,167,600,000	0
Net proceeds from (payments on) revolving credit facilities and commercial paper			0	10,000,000
Change in overdraft balances and other			(17,400,000)	(9,600,000)
Net intercompany financing activity			0	0
Net cash provided by (used in) financing activities			8,386,500,000	(272,300,000)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents			7,333,200,000	4,200,000
Effect of foreign exchange rate changes on cash and cash equivalents			0	0
Balance at beginning of year	146,400,000	146,400,000	146,400,000	40,900,000
Balance at end of period			7,479,600,000	45,100,000
Subsidiary Guarantors [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities			(29,200,000)	331,500,000
Cash flows from investing activities:
Additions to properties			(60,600,000)	(57,700,000)
Proceeds from sales of properties and other assets			142,100,000	500,000
Acquisition of businesses, net of cash acquired				0
Proceeds from Sale of Business			0	0
Investment in MillerCoors			(1,253,700,000)	(1,144,500,000)
Return of capital from MillerCoors			1,089,700,000	1,088,200,000
Other			2,300,000	(3,300,000)
Net intercompany investing activity			(1,590,900,000)	(186,500,000)
Net cash provided by investing activities			(1,671,100,000)	(303,300,000)
Cash flows from financing activities:
Proceeds from issuance of common stock, net			0
Exercise of stock options under equity compensation plans			0	0
Dividends paid			(40,300,000)	(267,500,000)
Payments for purchase of Treasury Stock				0
Debt issuance costs			4,500,000
Payments on debt and borrowings			0	(676,400,000)
Proceeds on debt and borrowings			768,800,000	679,900,000
Net proceeds from (payments on) revolving credit facilities and commercial paper			0	0
Change in overdraft balances and other			0	(2,400,000)
Net intercompany financing activity			(3,119,800,000)	(223,500,000)
Net cash provided by (used in) financing activities			3,843,800,000	(42,900,000)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents			2,143,500,000	(14,700,000)
Effect of foreign exchange rate changes on cash and cash equivalents			(3,200,000)	(20,000,000)
Balance at beginning of year	106,200,000	106,200,000	106,200,000	173,200,000
Balance at end of period			2,246,500,000	138,500,000
Subsidiary Non Guarantors [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities			(28,700,000)	73,500,000
Cash flows from investing activities:
Additions to properties			(116,300,000)	(141,900,000)
Proceeds from sales of properties and other assets			13,300,000	8,300,000
Acquisition of businesses, net of cash acquired				(91,200,000)
Proceeds from Sale of Business			6,600,000	8,700,000
Investment in MillerCoors			0	0
Return of capital from MillerCoors			0	0
Other			(1,800,000)	(3,800,000)
Net intercompany investing activity			(1,348,600,000)	(167,200,000)
Net cash provided by investing activities			(1,446,800,000)	(387,100,000)
Cash flows from financing activities:
Proceeds from issuance of common stock, net			0
Exercise of stock options under equity compensation plans			0	0
Dividends paid			(22,800,000)	(24,300,000)
Payments for purchase of Treasury Stock				0
Debt issuance costs			0
Payments on debt and borrowings			(23,300,000)	(19,700,000)
Proceeds on debt and borrowings			35,500,000	33,100,000
Net proceeds from (payments on) revolving credit facilities and commercial paper			1,600,000	7,100,000
Change in overdraft balances and other			(21,700,000)	(52,600,000)
Net intercompany financing activity			(1,590,900,000)	(186,500,000)
Net cash provided by (used in) financing activities			1,560,200,000	130,100,000
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents			84,700,000	(183,500,000)
Effect of foreign exchange rate changes on cash and cash equivalents			(7,600,000)	(17,000,000)
Balance at beginning of year	178,300,000	178,300,000	178,300,000	410,500,000
Balance at end of period			255,400,000	210,000,000
Consolidated [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities			630,200,000	479,000,000
Cash flows from investing activities:
Additions to properties			(188,900,000)	(208,300,000)
Proceeds from sales of properties and other assets			155,400,000	8,800,000
Acquisition of businesses, net of cash acquired				(91,200,000)
Proceeds from Sale of Business			6,600,000	8,700,000
Investment in MillerCoors			(1,253,700,000)	(1,144,500,000)
Return of capital from MillerCoors			1,089,700,000	1,088,200,000
Other			2,000,000	(7,100,000)
Net intercompany investing activity			0	0
Net cash provided by investing activities			(188,900,000)	(345,400,000)
Cash flows from financing activities:
Proceeds from issuance of common stock, net			2,525,600,000
Exercise of stock options under equity compensation plans			8,200,000	31,200,000
Dividends paid			(264,600,000)	(228,100,000)
Payments for purchase of Treasury Stock				(100,100,000)
Debt issuance costs			60,200,000
Payments on debt and borrowings			(23,300,000)	(696,100,000)
Proceeds on debt and borrowings			6,971,900,000	713,000,000
Net proceeds from (payments on) revolving credit facilities and commercial paper			1,600,000	17,100,000
Change in overdraft balances and other			(39,100,000)	(64,600,000)
Net intercompany financing activity			0	0
Net cash provided by (used in) financing activities			9,120,100,000	(327,600,000)
Cash and cash equivalents:
Net increase (decrease) in cash and cash equivalents			9,561,400,000	(194,000,000)
Effect of foreign exchange rate changes on cash and cash equivalents			(10,800,000)	(37,000,000)
Balance at beginning of year	430,900,000	430,900,000	430,900,000	624,600,000
Balance at end of period			9,981,500,000	393,600,000
Consolidation, Eliminations [Member]
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities			(40,300,000)	(267,500,000)
Cash flows from investing activities:
Additions to properties			0	0
Proceeds from sales of properties and other assets			0	0
Acquisition of businesses, net of cash acquired				0
Proceeds from Sale of Business			0	0
Investment in MillerCoors			0	0
Return of capital from MillerCoors			0	0
Other			0	0
Net intercompany investing activity			4,710,700,000	410,000,000
Net cash provided by investing activities			4,710,700,000	410,000,000
Cash flows from financing activities:
Proceeds from issuance of common stock, net			0
Exercise of stock options under equity compensation plans			0	0
Dividends paid			40,300,000	267,500,000
Payments for purchase of Treasury Stock				0
Debt issuance costs			0
Payments on debt and borrowings			0	0
Proceeds on debt and borrowings			0	0
Net proceeds from (payments on) revolving credit facilities and commercial paper			0	0
Change in overdraft balances and other			0	0
Net intercompany financing activity			4,710,700,000	410,000,000
Net cash provided by (used in) financing activities			(4,670,400,000)	(142,500,000)
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	0	0
Balance at end of period			$ 0	$ 0