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

Wine and Spirits Transformation (Details 1) - Operating Segments [Member] - Wine and Spirits [Member] - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Aug. 31, 2019	Aug. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 45.2	$ 106.4
Cost of product sold [Member] \| Loss on inventory write-downs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	13.7	40.9
Cost of product sold [Member] \| Contract termination costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	4.3	20.1
Selling, general, and administrative expenses [Member] \| Employee termination costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.2	12.1
Selling, general, and administrative expenses [Member] \| Impairment of long-lived [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	27.0	27.0
Selling, general, and administrative expenses [Member] \| Other costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0.0	$ 6.3