CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income (loss) including noncontrolling interests	$ 73.2	$ 137.3
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	54.2	(10.2)
Reclassification of cumulative translation adjustment	0.0	12.1
Unrealized gain (loss) on derivative instruments	(18.5)	54.1
Reclassification of derivative (gain) loss to income (loss)	0.9	0.7
Pension and other postretirement prior service (benefit) cost and net actuarial (gain) loss amortization and settlements to income (loss)	(2.9)	(0.9)
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	1.5	0.2
Total other comprehensive income (loss), net of tax	35.2	56.0
Comprehensive income (loss)	108.4	193.3
Comprehensive (income) loss attributable to noncontrolling interests	(1.0)	14.6
Comprehensive income (loss) attributable to Molson Coors Beverage Company	$ 107.4	$ 207.9