CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income (loss) including noncontrolling interests	$ 209.9	$ 73.2
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	(94.2)	54.2
Unrealized gain (loss) recognized on derivative instruments	19.3	(18.5)
Derivative instrument activity reclassified from other comprehensive income (loss)	0.1	0.9
Pension and other postretirement activity reclassified from other comprehensive income (loss)	(1.8)	(2.9)
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	0.0	1.5
Total other comprehensive income (loss), net of tax	(76.6)	35.2
Comprehensive income (loss)	133.3	108.4
Comprehensive (income) loss attributable to noncontrolling interests	(1.8)	(1.0)
Comprehensive income (loss) attributable to Molson Coors Beverage Company	$ 131.5	$ 107.4