Quarterly report pursuant to Section 13 or 15(d)

Comprehensive Income (Loss) Attributable to CBI (Details 1)

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Comprehensive Income (Loss) Attributable to CBI (Details 1) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Nov. 30, 2019
Aug. 31, 2019
May 31, 2019
Nov. 30, 2018
Aug. 31, 2018
May 31, 2018
Nov. 30, 2019
Nov. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Stockholders' equity, beginning of period     $ 12,551.0       $ 12,551.0  
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]                
Other comprehensive income (loss) attributable to CBI, Net of Tax Amount $ 100.1 $ (129.4) (2.7) $ (213.9) $ 81.3 $ (185.4)    
Stockholders' equity, period end 11,709.4           11,709.4  
Share of other comprehensive income (loss) of equity method investments [Member]                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Stockholders' equity, beginning of period     29.6       29.6  
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]                
Other comprehensive income (loss) before reclassification adjustments 6.3           (17.1)  
Amounts reclassified from accumulated other comprehensive income (loss) 0.0           0.0  
Other comprehensive income (loss) attributable to CBI, Net of Tax Amount 6.3           (17.1)  
Stockholders' equity, period end 12.5           12.5  
Accumulated Other Comprehensive Income (Loss) [Member]                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Stockholders' equity, beginning of period     (353.9)       (353.9)  
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]                
Other comprehensive income (loss) before reclassification adjustments             0.6  
Amounts reclassified from accumulated other comprehensive income (loss)             (30.5)  
Other comprehensive income (loss) attributable to CBI, Net of Tax Amount 92.8 $ (121.1) (1.6) (201.3) $ 74.0 $ (175.7) (29.9) $ (303.0)
Stockholders' equity, period end (383.8)           (383.8)  
Foreign currency translation adjustments [Member]                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Stockholders' equity, beginning of period     (406.5)       (406.5)  
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]                
Other comprehensive income (loss) before reclassification adjustments 53.7     (155.9)     (4.5) (248.4)
Amounts reclassified from accumulated other comprehensive income (loss) (22.7)     0.0     (22.7) 0.0
Other comprehensive income (loss) attributable to CBI, Net of Tax Amount 31.0     (155.9)     (27.2) (248.4)
Stockholders' equity, period end (433.7)           (433.7)  
Net unrealized gain (loss) on derivative instruments [Member]                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Stockholders' equity, beginning of period     25.1       25.1  
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]                
Other comprehensive income (loss) before reclassification adjustments 56.8     (45.4)     22.2 (53.6)
Amounts reclassified from accumulated other comprehensive income (loss) (2.9)     (0.1)     (9.5) (3.8)
Other comprehensive income (loss) attributable to CBI, Net of Tax Amount 53.9     (45.5)     12.7 (57.4)
Stockholders' equity, period end 37.8           37.8  
Pension/postretirement adjustments [Member]                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Stockholders' equity, beginning of period     $ (2.1)       (2.1)  
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]                
Other comprehensive income (loss) before reclassification adjustments 0.0     0.1     0.0 0.1
Amounts reclassified from accumulated other comprehensive income (loss) 1.6     0.0     1.7 0.2
Other comprehensive income (loss) attributable to CBI, Net of Tax Amount 1.6     $ 0.1     1.7 $ 0.3
Stockholders' equity, period end $ (0.4)           $ (0.4)