Constellation Brands, Inc. Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Aggregate Notional Value of Outstanding Derivative Instruments (Details) - USD ($) $ in Millions	Aug. 31, 2020	Mar. 31, 2020	Feb. 29, 2020
Derivative instruments designated as hedging instruments \| Foreign currency contracts
Derivative [Line Items]
Aggregate notional value of derivative instruments	$ 1,527.2		$ 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
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	366.8		1,180.2
Derivative instruments not designated as hedging instruments \| Commodity derivative contracts
Derivative [Line Items]
Aggregate notional value of derivative instruments	$ 246.5		$ 282.8