Constellation Brands, Inc. Annual report pursuant to Section 13 and 15(d)

Derivative Instruments - Aggregate Notional Value of Outstanding Derivative Instruments (Details) - USD ($) $ in Millions	Feb. 28, 2021	Mar. 31, 2020	Feb. 29, 2020	Jun. 30, 2019
Derivative instruments designated as hedging instruments \| Foreign currency contracts
Derivative [Line Items]
Aggregate notional value of derivative instruments	$ 1,558.0		$ 1,831.0
Derivative instruments designated as hedging instruments \| Interest rate swap contracts
Derivative [Line Items]
Aggregate notional value of derivative instruments	0.0		375.0	$ 375.0
Derivative instruments designated as hedging instruments \| Treasury lock contracts
Derivative [Line Items]
Aggregate notional value of derivative instruments	0.0	$ 500.0	300.0
Derivative instruments not designated as hedging instruments \| Foreign currency contracts
Derivative [Line Items]
Aggregate notional value of derivative instruments	704.7		1,180.2
Derivative instruments not designated as hedging instruments \| Commodity derivative contracts
Derivative [Line Items]
Aggregate notional value of derivative instruments	$ 221.6		$ 282.8