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

Business Transformation (Details 2) - Operating Segments [Member] - Wine and Spirits [Member] - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Nov. 30, 2019	Nov. 30, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 403.6	$ 510.0
Cost of product sold [Member] \| Loss on inventory write-downs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	61.7	102.6
Cost of product sold [Member] \| Contract termination costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.0	20.1
Selling, general, and administrative expenses [Member] \| Employee termination costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.2	12.3
Selling, general, and administrative expenses [Member] \| Other costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1.7	8.0
Impairment of assets held for sale [Member] \| Impairment of long-lived assets [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 340.0	$ 367.0