Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2015	Nov. 30, 2014	Feb. 28, 2015
Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Amortizable intangible assets, Gross Carrying Amount	$ 191.1		$ 191.1		$ 190.2
Amortizable intangible assets, Net Carrying Amount	72.3		72.3		102.7
Nonamortizable intangible assets, Net Carrying Amount	3,115.5		3,115.5		3,078.3
Total intangible assets, Net Carrying Amount	3,187.8		3,187.8		3,181.0
Amortization expense for intangible assets	9.5	$ 11.5	32.2	$ 36.2
Trademarks [Member]
Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Nonamortizable intangible assets, Net Carrying Amount	3,111.4		3,111.4		3,073.9
Other [Member]
Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Nonamortizable intangible assets, Net Carrying Amount	4.1		4.1		4.4
Customer relationships [Member]
Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Amortizable intangible assets, Gross Carrying Amount	100.5		100.5		100.9
Amortizable intangible assets, Net Carrying Amount	59.5		59.5		63.3
Favorable interim supply agreement [Member]
Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Amortizable intangible assets, Gross Carrying Amount	68.3		68.3		68.3
Amortizable intangible assets, Net Carrying Amount	8.6		8.6		33.9
Other [Member]
Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Amortizable intangible assets, Gross Carrying Amount	22.3		22.3		21.0
Amortizable intangible assets, Net Carrying Amount	$ 4.2		$ 4.2		$ 5.5