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

Goodwill (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 28, 2015	Feb. 28, 2014
Changes in the Carrying Amount of Goodwill [Rollforward]
Goodwill, beginning of period	$ 6,146.8us-gaap_Goodwill	$ 2,722.3us-gaap_Goodwill
Purchase accounting allocations	100.7us-gaap_GoodwillAcquiredDuringPeriod	3,715.8us-gaap_GoodwillAcquiredDuringPeriod
Impairment of goodwill		(278.7)us-gaap_GoodwillImpairmentLoss
Foreign currency translation adjustments	(39.3)us-gaap_GoodwillTranslationAdjustments	(12.6)us-gaap_GoodwillTranslationAdjustments
Goodwill, end of period	6,208.2us-gaap_Goodwill	6,146.8us-gaap_Goodwill
Operating Segments [Member] \| Beer [Member]
Changes in the Carrying Amount of Goodwill [Rollforward]
Goodwill, beginning of period	3,714.6	13.0
Purchase accounting allocations	66.7	3,702.8
Impairment of goodwill		0
Foreign currency translation adjustments	(5.1)	(1.2)
Goodwill, end of period	3,776.2	3,714.6
Operating Segments [Member] \| Wine and Spirits [Member]
Changes in the Carrying Amount of Goodwill [Rollforward]
Goodwill, beginning of period	2,432.2	2,722.3
Purchase accounting allocations	34.0	0
Impairment of goodwill		(278.7)
Foreign currency translation adjustments	(34.2)	(11.4)
Goodwill, end of period	2,432.0	2,432.2
Consolidation and Eliminations [Member]
Changes in the Carrying Amount of Goodwill [Rollforward]
Goodwill, beginning of period	0	(13.0)
Purchase accounting allocations	0	13.0
Impairment of goodwill		0
Foreign currency translation adjustments	0	0
Goodwill, end of period	$ 0	$ 0