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

Derivative Instruments (Details 1)

Derivative Instruments (Details 1) - USD ($) $ in Millions	May 31, 2018	Feb. 28, 2018
Designated as hedging instrument [Member] \| Foreign currency contracts [Member] \| Prepaid expenses and other [Member]
Fair value and location of our derivative instruments on our balance sheets
Foreign currency contracts, Assets	$ 8.2	$ 21.2
Designated as hedging instrument [Member] \| Foreign currency contracts [Member] \| Other accrued expenses and liabilities [Member]
Fair value and location of our derivative instruments on our balance sheets
Foreign currency contracts, Liabilities	26.9	7.8
Designated as hedging instrument [Member] \| Foreign currency contracts [Member] \| Other assets [Member]
Fair value and location of our derivative instruments on our balance sheets
Foreign currency contracts, Assets	4.1	17.0
Designated as hedging instrument [Member] \| Foreign currency contracts [Member] \| Other liabilities [Member]
Fair value and location of our derivative instruments on our balance sheets
Foreign currency contracts, Liabilities	34.7	9.9
Not designated as hedging instrument [Member] \| Foreign currency contracts [Member] \| Prepaid expenses and other [Member]
Fair value and location of our derivative instruments on our balance sheets
Foreign currency contracts, Assets	1.1	2.1
Not designated as hedging instrument [Member] \| Foreign currency contracts [Member] \| Other accrued expenses and liabilities [Member]
Fair value and location of our derivative instruments on our balance sheets
Foreign currency contracts, Liabilities	3.1	2.2
Not designated as hedging instrument [Member] \| Commodity derivative contracts [Member] \| Prepaid expenses and other [Member]
Fair value and location of our derivative instruments on our balance sheets
Commodity derivative contracts, Assets	14.1	6.3
Not designated as hedging instrument [Member] \| Commodity derivative contracts [Member] \| Other accrued expenses and liabilities [Member]
Fair value and location of our derivative instruments on our balance sheets
Commodity derivative contracts, Liabilities	0.7	3.0
Not designated as hedging instrument [Member] \| Commodity derivative contracts [Member] \| Other assets [Member]
Fair value and location of our derivative instruments on our balance sheets
Commodity derivative contracts, Assets	6.1	2.8
Not designated as hedging instrument [Member] \| Commodity derivative contracts [Member] \| Other liabilities [Member]
Fair value and location of our derivative instruments on our balance sheets
Commodity derivative contracts, Liabilities	$ 2.1	$ 2.6