CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Sales	$ 2,537.8	$ 2,800.1
Excise taxes	(435.0)	(496.8)
Net Sales	2,102.8	2,303.3
Cost of Goods Sold	(1,479.0)	(1,413.0)
Gross profit	623.8	890.3
Marketing, general and administrative expenses	(629.7)	(655.2)
Special items, net	(86.6)	(13.0)
Operating income (loss)	(92.5)	222.1
Interest income (expense), net	(68.9)	(73.3)
Other pension and postretirement benefits (costs), net	7.5	8.6
Other income (expense), net	(4.8)	23.9
Income (loss) before income taxes	(158.7)	181.3
Income tax benefit (expense)	43.3	(32.2)
Net Income (loss)	(115.4)	149.1
Net (income) loss attributable to noncontrolling interests	(1.6)	2.3
Net income (loss) attributable to Molson Coors Beverage Company	$ (117.0)	$ 151.4
Basic net income (loss) attributable to Molson Coors Beverage Company per share:
Income (Loss) from Continuing Operations, Per Basic Share	$ (0.54)	$ 0.70
Diluted net income (loss) attributable to Molson Coors Beverage Company per share:
Income (Loss) from Continuing Operations, Per Diluted Share	$ (0.54)	$ 0.70
Weighted average shares - basic (in shares)	216.7	216.5
Dilutive effect of share-based awards	0.0	0.4
Weighted average shares - diluted (in shares)	216.7	216.9
Share-based Payment Arrangement [Member]
Diluted net income (loss) attributable to Molson Coors Beverage Company per share:
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2.9	1.1