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

Annual report pursuant to Section 13 and 15(d)

Equity Method Investments (Details Textuals)

Equity Method Investments (Details Textuals) $ / shares in Units, $ in Millions, $ in Millions							1 Months Ended		12 Months Ended
	Mar. 31, 2020 CAD ($)	Feb. 29, 2020 USD ($)	Jun. 27, 2019 USD ($) shares	Jun. 27, 2019 CAD ($) $ / shares shares	Nov. 01, 2018 USD ($)	Nov. 01, 2018 CAD ($) $ / shares shares	Nov. 30, 2017 USD ($)	Nov. 30, 2017 CAD ($) $ / shares shares	Feb. 29, 2020 USD ($)	Feb. 28, 2019 USD ($)	Feb. 28, 2018 USD ($)
Schedule of Equity Method Investments [Line Items]
Payments to acquire investments									$ 48.2	$ 4,081.5	$ 210.9
Common shares to be repurchased for cancellation under share repurchase credit feature \| shares			27,378,866	27,378,866
Unrealized net gain (loss) on securities measured at fair value									$ (2,126.4)	$ 1,971.2	464.3
Canopy equity method investment [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		35.30%				36.60%			35.30%	36.00%
Equity in earnings (losses) of equity method investment									$ (575.9)	$ (2.6)	$ 0.0
Fair value of equity method investment		$ 2,316.3							2,316.3
Difference between carrying amount and underlying equity		595.4							595.4
Canopy equity method investment [Member] \| Subsequent Event [Member] \| Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Equity in earnings (losses) of equity method investment	$ 245.0
Canopy estimated pre-tax loss	700.0
Canopy equity method investment [Member] \| Subsequent Event [Member] \| Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Equity in earnings (losses) of equity method investment	280.0
Canopy estimated pre-tax loss	$ 800.0
New November 2018 Canopy Warrants [Member]
Schedule of Equity Method Investments [Line Items]
Equity in earnings (losses) of equity method investment									(409.0)
New Tranche B Warrants and New Tranche C Warrants [Member]
Schedule of Equity Method Investments [Line Items]
Warrant reduction due to open market or private agreement purchases \| shares			20,000,000	20,000,000
New Tranche B Warrants and New Tranche C Warrants [Member] \| Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Dollar value of common shares to be repurchased for cancellation under share repurchase credit feature				$ 1,583.0
November 2017 Canopy Investment [Member]
Schedule of Equity Method Investments [Line Items]
Cost method investment, ownership percentage								9.90%
Equity Securities [Member]
Schedule of Equity Method Investments [Line Items]
Payments to acquire investments					$ 3,869.9	$ 5,078.7	$ 191.3	$ 245.0
Equity Securities [Member] \| November 2017 Canopy Investment [Member]
Schedule of Equity Method Investments [Line Items]
Unrealized net gain (loss) on securities measured at fair value									0.0	292.5
Common Stock [Member] \| November 2018 Canopy Investment [Member]
Schedule of Equity Method Investments [Line Items]
Number of common shares acquired \| shares						104,500,000
Common Stock [Member] \| November 2017 Canopy Investment [Member]
Schedule of Equity Method Investments [Line Items]
Number of common shares acquired \| shares								18,900,000
Warrant [Member] \| Canopy Warrants [Member]
Schedule of Equity Method Investments [Line Items]
Payments to acquire investments		$ 6,000.0
Warrant [Member] \| November 2017 Canopy Warrants [Member]
Schedule of Equity Method Investments [Line Items]
Number of common shares to be acquired upon exercise of warrants \| shares								18,900,000
Exercise price of warrants, C$ per share \| $ / shares								$ 12.98
Unrealized net gain (loss) on securities measured at fair value									(543.7)	465.5
Warrant [Member] \| November 2018 Canopy Warrants [Member]
Schedule of Equity Method Investments [Line Items]
Number of common shares to be acquired upon exercise of warrants \| shares						139,700,000
Unrealized net gain (loss) on securities measured at fair value										$ 1,157.7
Warrant [Member] \| Tranche A Warrants [Member]
Schedule of Equity Method Investments [Line Items]
Number of common shares to be acquired upon exercise of warrants \| shares						88,500,000
Exercise price of warrants, C$ per share \| $ / shares						$ 50.40
Warrant [Member] \| Tranche B Warrants [Member]
Schedule of Equity Method Investments [Line Items]
Number of common shares to be acquired upon exercise of warrants \| shares						51,200,000
Warrant [Member] \| New November 2018 Canopy Warrants [Member]
Schedule of Equity Method Investments [Line Items]
Number of common shares to be acquired upon exercise of warrants \| shares				139,700,000
Unrealized net gain (loss) on securities measured at fair value									(1,488.1)
Warrant [Member] \| New Tranche A Warrants [Member]
Schedule of Equity Method Investments [Line Items]
Number of common shares to be acquired upon exercise of warrants \| shares				88,500,000
Exercise price of warrants, C$ per share \| $ / shares				$ 50.40
Unrealized net gain (loss) on securities measured at fair value			$ 322.5
Warrant [Member] \| New Tranche B Warrants [Member]
Schedule of Equity Method Investments [Line Items]
Number of common shares to be acquired upon exercise of warrants \| shares				38,400,000
Exercise price of warrants, C$ per share \| $ / shares				$ 76.68
Unrealized net gain (loss) on securities measured at fair value			853.5
Warrant [Member] \| New Tranche C Warrants [Member]
Schedule of Equity Method Investments [Line Items]
Number of common shares to be acquired upon exercise of warrants \| shares				12,800,000
Warrant [Member] \| New November 2018 Canopy Warrants Modification [Member]
Schedule of Equity Method Investments [Line Items]
Unrealized net gain (loss) on securities measured at fair value			$ 1,176.0						$ 1,176.0