CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Sales	$ 3,905.6	$ 3,517.4	$ 10,551.5	$ 9,662.1
Excise taxes	(607.2)	(582.2)	(1,640.2)	(1,590.6)
Net sales	3,298.4	2,935.2	8,911.3	8,071.5
Cost of goods sold	(1,952.2)	(1,951.5)	(5,575.5)	(5,340.0)
Gross profit	1,346.2	983.7	3,335.8	2,731.5
Marketing, general and administrative expenses	(746.8)	(660.0)	(2,096.7)	(2,043.3)
Other operating income (expense), net	(12.7)	5.3	(13.0)	(22.9)
Equity income (loss)	5.5	1.1	12.8	3.7
Operating income (loss)	592.2	330.1	1,238.9	669.0
Interest income (expense), net	(48.8)	(58.7)	(162.5)	(188.6)
Other pension and postretirement benefits (costs), net	2.5	14.8	7.7	35.7
Other non-operating income (expense), net	(1.9)	(13.2)	2.9	(14.5)
Income (loss) before income taxes	544.0	273.0	1,087.0	501.6
Income tax benefit (expense)	(112.4)	(54.9)	(236.1)	(98.3)
Net income (loss)	431.6	218.1	850.9	403.3
Net (income) loss attributable to noncontrolling interests	(0.9)	(1.7)	(5.3)	11.9
Net income (loss) attributable to Molson Coors Beverage Company	$ 430.7	$ 216.4	$ 845.6	$ 415.2
Net income (loss) attributable to Molson Coors Beverage Company per share
Basic (in dollars per share)	$ 1.99	$ 1.00	$ 3.91	$ 1.91
Diluted (in dollars per share)	$ 1.98	$ 0.99	$ 3.89	$ 1.91
Weighted-average shares outstanding
Basic (in shares)	216.1	216.8	216.3	217.0
Dilutive effect of share-based awards (in shares)	1.5	0.8	1.3	0.7
Diluted (in shares)	217.6	217.6	217.6	217.7