Business Segment Information - Comparable Adjustments (Details) - USD ($) $ in Millions	3 Months Ended
	May 31, 2025	May 31, 2024
Cost of Goods and Services Sold [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (12.7)	$ 18.6
Cost of Goods and Services Sold	(1,248.4)	(1,258.0)
Selling, General and Administrative Expense [Abstract]
Selling, General and Administrative Expense	(500.7)	(462.2)
Assets held for sale impairment and related expenses	(52.1)	0.0
Comparable Adjustments
Cost of Goods and Services Sold [Abstract]
Flow Through of Inventory Step up	(0.9)	(1.1)
Strategic Business Development Costs	(0.4)	0.0
Cost of Goods and Services Sold	(16.5)	22.0
Selling, General and Administrative Expense [Abstract]
Restructuring and Related Cost, Incurred Cost	(5.2)	(1.8)
Transition services agreements activity	(5.5)	(2.8)
Transaction, integration, and other acquisition-related costs	(2.1)	(0.2)
Other gains (losses)	(1.4)	0.4
Selling, General and Administrative Expense	(27.5)	(4.4)
Assets held for sale impairment and related expenses	(52.1)	0.0
Comparable adjustments, operating income (loss)	(96.1)	17.6
Gain (loss) on sale of business	(1.4)	0.0
Comparable Adjustments | 2025 Restructuring Initiative
Selling, General and Administrative Expense [Abstract]
Restructuring and Related Cost, Incurred Cost	(13.3)	0.0
Comparable Adjustments | Commodity derivative contracts
Cost of Goods and Services Sold [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(17.7)	14.6
Settlements of Undesignated Commodity Swap Contracts	$ 2.5	$ 8.5