Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments - Recurring Basis Measurements (Details)

v3.22.2
Fair Value of Financial Instruments - Recurring Basis Measurements (Details) - USD ($)
shares in Millions, $ in Millions
 3 Months Ended
May 31, 2022
May 31, 2021
Feb. 28, 2022
Fair Value, Net Asset (Liability) [Abstract]      
Debt securities $ 172.3   $ 191.4
Debt and Equity Securities, Unrealized Gain (Loss), Excluding Other-than-temporary Impairment [Abstract]      
Unrealized net gain (loss) on securities measured at fair value $ (22.4) $ (745.1)  
Equity method investment, number of common shares acquired (in shares) 142.3    
Convertible debt securities      
Debt and Equity Securities, Unrealized Gain (Loss), Excluding Other-than-temporary Impairment [Abstract]      
Unrealized net gain (loss) on securities measured at fair value $ (3.7) (8.9)  
Warrants | November 2018 Canopy Warrants      
Debt and Equity Securities, Unrealized Gain (Loss), Excluding Other-than-temporary Impairment [Abstract]      
Unrealized net gain (loss) on securities measured at fair value (18.7) $ (736.2)  
Recurring | Foreign currency contracts      
Fair Value, Net Asset (Liability) [Abstract]      
Derivative asset 147.8   56.4
Derivative liability 22.5   17.8
Recurring | Commodity derivative contracts      
Fair Value, Net Asset (Liability) [Abstract]      
Derivative asset 120.8   91.0
Derivative liability 8.0   0.9
Recurring | Equity securities      
Fair Value, Net Asset (Liability) [Abstract]      
Equity securities 17.6   36.3
Recurring | Convertible debt securities      
Fair Value, Net Asset (Liability) [Abstract]      
Debt securities 146.1   146.6
Recurring | Pre-issuance hedge contracts      
Fair Value, Net Asset (Liability) [Abstract]      
Derivative liability     0.4
Recurring | Quoted Prices in Active Markets (Level 1) | Foreign currency contracts      
Fair Value, Net Asset (Liability) [Abstract]      
Derivative asset 0.0   0.0
Derivative liability 0.0   0.0
Recurring | Quoted Prices in Active Markets (Level 1) | Commodity derivative contracts      
Fair Value, Net Asset (Liability) [Abstract]      
Derivative asset 0.0   0.0
Derivative liability 0.0   0.0
Recurring | Quoted Prices in Active Markets (Level 1) | Equity securities      
Fair Value, Net Asset (Liability) [Abstract]      
Equity securities 0.0   0.0
Recurring | Quoted Prices in Active Markets (Level 1) | Convertible debt securities      
Fair Value, Net Asset (Liability) [Abstract]      
Debt securities 0.0   0.0
Recurring | Quoted Prices in Active Markets (Level 1) | Pre-issuance hedge contracts      
Fair Value, Net Asset (Liability) [Abstract]      
Derivative liability     0.0
Recurring | Significant Other Observable Inputs (Level 2) | Foreign currency contracts      
Fair Value, Net Asset (Liability) [Abstract]      
Derivative asset 147.8   56.4
Derivative liability 22.5   17.8
Recurring | Significant Other Observable Inputs (Level 2) | Commodity derivative contracts      
Fair Value, Net Asset (Liability) [Abstract]      
Derivative asset 120.8   91.0
Derivative liability 8.0   0.9
Recurring | Significant Other Observable Inputs (Level 2) | Equity securities      
Fair Value, Net Asset (Liability) [Abstract]      
Equity securities 17.6   36.3
Recurring | Significant Other Observable Inputs (Level 2) | Convertible debt securities      
Fair Value, Net Asset (Liability) [Abstract]      
Debt securities 146.1   146.6
Recurring | Significant Other Observable Inputs (Level 2) | Pre-issuance hedge contracts      
Fair Value, Net Asset (Liability) [Abstract]      
Derivative liability     0.4
Recurring | Significant Unobservable Inputs (Level 3) | Foreign currency contracts      
Fair Value, Net Asset (Liability) [Abstract]      
Derivative asset 0.0   0.0
Derivative liability 0.0   0.0
Recurring | Significant Unobservable Inputs (Level 3) | Commodity derivative contracts      
Fair Value, Net Asset (Liability) [Abstract]      
Derivative asset 0.0   0.0
Derivative liability 0.0   0.0
Recurring | Significant Unobservable Inputs (Level 3) | Equity securities      
Fair Value, Net Asset (Liability) [Abstract]      
Equity securities 0.0   0.0
Recurring | Significant Unobservable Inputs (Level 3) | Convertible debt securities      
Fair Value, Net Asset (Liability) [Abstract]      
Debt securities $ 0.0   0.0
Recurring | Significant Unobservable Inputs (Level 3) | Pre-issuance hedge contracts      
Fair Value, Net Asset (Liability) [Abstract]      
Derivative liability     $ 0.0