CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Sales	$ 3,603.3	$ 3,905.6	$ 10,490.7	$ 10,551.5
Excise taxes	(560.6)	(607.2)	(1,599.3)	(1,640.2)
Net sales	3,042.7	3,298.4	8,891.4	8,911.3
Cost of goods sold	(1,840.2)	(1,952.2)	(5,395.5)	(5,575.5)
Gross profit	1,202.5	1,346.2	3,495.9	3,335.8
Marketing, general and administrative expenses	(684.7)	(746.8)	(2,067.8)	(2,096.7)
Other operating income (expense), net	(65.8)	(12.7)	(59.4)	(13.0)
Equity income (loss)	(0.8)	5.5	(3.6)	12.8
Operating income (loss)	451.2	592.2	1,365.1	1,238.9
Interest income (expense), net	(93.1)	(48.8)	(192.7)	(162.5)
Other pension and postretirement benefit (cost), net	(26.6)	2.5	(11.9)	7.7
Other non-operating income (expense), net	(0.1)	(1.9)	(3.8)	2.9
Total non-operating income (expense), net	(119.8)	(48.2)	(208.4)	(151.9)
Income (loss) before income taxes	331.4	544.0	1,156.7	1,087.0
Income tax benefit (expense)	(102.6)	(112.4)	(292.7)	(236.1)
Net income (loss)	228.8	431.6	864.0	850.9
Net (income) loss attributable to noncontrolling interests	(29.0)	(0.9)	(29.4)	(5.3)
Net income (loss) attributable to Molson Coors Beverage Company	$ 199.8	$ 430.7	$ 834.6	$ 845.6
Net income (loss) attributable to Molson Coors Beverage Company per share
Basic (in dollars per share)	$ 0.96	$ 1.99	$ 3.98	$ 3.91
Diluted (in dollars per share)	$ 0.96	$ 1.98	$ 3.96	$ 3.89
Weighted-average shares outstanding
Basic (in shares)	207.2	216.1	209.9	216.3
Dilutive effect of share-based awards (in shares)	0.8	1.5	1.1	1.3
Diluted (in shares)	208.0	217.6	211.0	217.6