Goodwill (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	May 31, 2025	Feb. 28, 2025
Changes in the carrying amount of goodwill [Roll Forward]
Goodwill, beginning of period	$ 5,126.8	$ 7,980.3
Purchase accounting allocations		71.2
Foreign currency translation adjustments	30.0	(110.8)
Goodwill impairment		(2,740.7)
SVEDKA Divestiture		(73.2)
Goodwill, end of period	5,156.8	5,126.8
Operating Segments | Beer
Changes in the carrying amount of goodwill [Roll Forward]
Goodwill, beginning of period	5,126.8	5,238.2
Purchase accounting allocations		0.0
Foreign currency translation adjustments	30.0	(111.4)
Goodwill impairment		0.0
SVEDKA Divestiture		0.0
Goodwill, end of period	5,156.8	5,126.8
Operating Segments | Wine and Spirits
Changes in the carrying amount of goodwill [Roll Forward]
Goodwill, beginning of period	0.0	2,742.1
Purchase accounting allocations		71.2
Foreign currency translation adjustments	0.0	0.6
Goodwill impairment		(2,740.7)
SVEDKA Divestiture		(73.2)
Goodwill, end of period	$ 0.0	$ 0.0