CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income (loss) including noncontrolling interests	$ 137.3	$ 82.0
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	(10.2)	10.3
Reclassification of cumulative translation adjustment to income (loss)	12.1	7.5
Unrealized gain (loss) on derivative instruments	54.1	102.7
Reclassification of derivative (gain) loss to income (loss)	0.7	1.2
Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income (loss)	(0.9)	0.4
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	0.2	0.4
Total other comprehensive income (loss), net of tax	56.0	122.5
Comprehensive income (loss)	193.3	204.5
Comprehensive (income) loss attributable to noncontrolling interests	14.6	2.0
Comprehensive income (loss) attributable to Molson Coors Beverage Company	$ 207.9	$ 206.5