CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income (loss) including noncontrolling interests	$ 218.1	$ 453.8	$ 403.3	$ 926.1
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	(317.2)	(104.6)	(536.3)	(30.4)
Reclassification of cumulative translation adjustment to income (loss)	0.0	0.0	12.1	7.5
Unrealized gain (loss) on derivative instruments	29.7	5.5	154.1	48.7
Reclassification of derivative (gain) loss to income (loss)	0.6	1.0	9.7	4.9
Pension and other postretirement benefit adjustments	(43.9)	0.0	(43.9)	0.0
Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income (loss) and settlement	(5.0)	0.3	(6.8)	0.9
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	0.3	0.4	10.6	1.2
Total other comprehensive income (loss), net of tax	(335.5)	(97.4)	(400.5)	32.8
Comprehensive income (loss)	(117.4)	356.4	2.8	958.9
Comprehensive (income) loss attributable to noncontrolling interests	0.3	0.2	15.9	0.1
Comprehensive income (loss) attributable to Molson Coors Beverage Company	$ (117.1)	$ 356.6	$ 18.7	$ 959.0