CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Sales	$ 13,884.6	$ 12,807.5	$ 12,449.9
Excise taxes	(2,182.5)	(2,106.5)	(2,170.2)
Net sales	11,702.1	10,701.0	10,279.7
Cost of goods sold	(7,333.3)	(7,045.8)	(6,226.3)
Gross profit	4,368.8	3,655.2	4,053.4
Marketing, general and administrative expenses	(2,779.9)	(2,618.8)	(2,554.5)
Goodwill impairment	0.0	(845.0)	0.0
Other operating income (expense), net	(162.7)	(38.6)	(44.5)
Equity income (loss)	12.0	4.7	0.0
Operating income (loss)	1,438.2	157.5	1,454.4
Interest expense	(234.0)	(250.6)	(260.3)
Interest income	25.4	4.3	2.0
Other pension and postretirement benefit (cost), net	10.2	36.6	46.4
Other non-operating income (expense), net	12.7	(10.3)	(3.5)
Total non-operating income (expense), net	(185.7)	(220.0)	(215.4)
Income (loss) before income taxes	1,252.5	(62.5)	1,239.0
Income tax benefit (expense)	(296.1)	(124.0)	(230.5)
Net income (loss)	956.4	(186.5)	1,008.5
Net (income) loss attributable to noncontrolling interests	(7.5)	11.2	(2.8)
Net income (loss) attributable to Molson Coors Beverage Company	$ 948.9	$ (175.3)	$ 1,005.7
Net income (loss) attributable to Molson Coors Beverage Company per share
Basic (in dollars per share)	$ 4.39	$ (0.81)	$ 4.63
Diluted (in dollars per share)	$ 4.37	$ (0.81)	$ 4.62
Weighted-average shares outstanding
Basic (in shares)	216.0	216.9	217.1
Dilutive effect of share-based awards (in shares)	1.3	0.0	0.5
Diluted (in shares)	217.3	216.9	217.6