Annual report pursuant to Section 13 and 15(d)

Accumulated Other Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (Loss) (Details)

v3.21.1
Accumulated Other Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 12 Months Ended
Apr. 30, 2020
Feb. 28, 2021
Feb. 29, 2020
Feb. 28, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Stockholders' equity, beginning of period   $ 12,131.8    
Other comprehensive income (loss) attributable to CBI        
Other comprehensive income (loss) attributable to CBI, Net of Tax Amount   (80.3) $ 90.5 $ (152.8)
Stockholders' equity, end of period   13,598.9 12,131.8  
Accumulated Other Comprehensive Income (Loss)        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Stockholders' equity, beginning of period   (266.3)    
Other comprehensive income (loss) attributable to CBI        
Other comprehensive income (loss), before reclassification adjustments   (100.2)    
Amounts reclassified from accumulated other comprehensive income (loss)   31.0    
Other comprehensive income (loss) attributable to CBI, Net of Tax Amount   (69.2) 87.6 (151.0)
Stockholders' equity, end of period   (335.5) (266.3)  
Accumulated Other Comprehensive Income (Loss) | Share of other comprehensive income (loss) of equity method investments        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Stockholders' equity, beginning of period   19.5    
Other comprehensive income (loss) attributable to CBI        
Other comprehensive income (loss), before reclassification adjustments   (1.8) (10.1) 29.6
Amounts reclassified from accumulated other comprehensive income (loss)   0.0 0.0 0.0
Other comprehensive income (loss) attributable to CBI, Net of Tax Amount   (1.8) (10.1) 29.6
Stockholders' equity, end of period   17.7 19.5  
Foreign currency translation adjustments        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Stockholders' equity, beginning of period   (345.7)    
Other comprehensive income (loss) attributable to CBI        
Other comprehensive income (loss), before reclassification adjustments   (51.9) 83.4 (194.2)
Amounts reclassified from accumulated other comprehensive income (loss)   5.1 (22.6) 0.0
Other comprehensive income (loss) attributable to CBI, Net of Tax Amount   (46.8) 60.8 (194.2)
Stockholders' equity, end of period   (392.5) (345.7)  
Net unrealized gain (loss) on derivative instruments        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Stockholders' equity, beginning of period   62.5    
Other comprehensive income (loss) attributable to CBI        
Other comprehensive income (loss), before reclassification adjustments   (44.9) 54.4 13.3
Amounts reclassified from accumulated other comprehensive income (loss)   25.9 (17.0) (2.7)
Other comprehensive income (loss) attributable to CBI, Net of Tax Amount $ (21.8) (19.0) 37.4 10.6
Stockholders' equity, end of period   43.5 62.5  
Pension/postretirement adjustments        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Stockholders' equity, beginning of period   (2.6)    
Other comprehensive income (loss) attributable to CBI        
Other comprehensive income (loss), before reclassification adjustments   (1.6) (2.2) 0.3
Amounts reclassified from accumulated other comprehensive income (loss)   0.0 1.7 0.2
Other comprehensive income (loss) attributable to CBI, Net of Tax Amount   (1.6) (0.5) $ 0.5
Stockholders' equity, end of period   $ (4.2) $ (2.6)