Annual report pursuant to Section 13 and 15(d)

Selected Quarterly Financial Information (Unaudited) (Details)

v3.20.1
Selected Quarterly Financial Information (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Feb. 29, 2020
Nov. 30, 2019
Aug. 31, 2019
May 31, 2019
Feb. 28, 2019
Nov. 30, 2018
Aug. 31, 2018
May 31, 2018
Feb. 29, 2020
Feb. 28, 2019
Feb. 28, 2018
Summary of selected quarterly financial information                      
Net sales $ 1,902.9 $ 1,999.4 $ 2,344.0 $ 2,097.2 $ 1,797.2 $ 1,972.6 $ 2,299.1 $ 2,047.1 $ 8,343.5 $ 8,116.0 $ 7,580.3
Gross profit 949.8 987.5 1,185.9 1,028.7 893.5 970.0 1,168.2 1,048.6 4,151.9 4,080.3 3,812.5
Net income (loss) attributable to CBI 398.4 360.4 (525.2) (245.4) 1,239.5 303.1 1,149.5 743.8 (11.8) 3,435.9 2,303.4
Earnings Per Share [Abstract]                      
Unrealized net gain (loss) on securities measured at fair value, net of income tax effect 56.9 (411.3) (667.6) (633.5) 911.7 (168.4) 595.1 224.1      
Impairment of assets held for sale, net of income tax effect (33.2) (294.8) (20.4) 0.0              
Equity in earnings (losses) from Canopy, net of income tax effect (15.6) 41.4 (366.7) (78.2)              
Inventory write-downs, net of income tax effect (0.3) (46.7) (10.3) (20.6)              
Net income tax benefit recognized in connection with tax reform in Switzerland 0.0 547.4 0.0 0.0         547.4    
Gain (loss) on sale of business, net of income tax effect 5.2 59.0 0.0 0.0              
Net income tax (provision) benefit recognized for the reversal of a valuation allowances $ (25.0) $ 0.0 $ 0.0 $ 54.1 50.1 0.0 0.0 0.0 32.8 74.1 (4.8)
Net gain (loss) on sale of unconsolidated investment, net of income tax effect         0.0 0.0 (1.6) 99.5      
Impairment of intangible assets, net of income tax effect         $ (81.0) $ 0.0 $ 0.0 $ 0.0      
Class A Common Stock [Member]                      
Summary of selected quarterly financial information                      
Net income (loss) attributable to CBI                 $ (10.2) $ 3,049.5 $ 2,049.9
Earnings Per Share [Abstract]                      
Net income (loss) per common share attributable to CBI, basic (in dollars per share) $ 2.10 $ 1.90 $ (2.77) $ (1.30) $ 6.57 $ 1.62 $ 6.11 $ 3.93 $ (0.07) $ 18.24 $ 11.96
Net income (loss) per common share attributable to CBI, diluted (in dollars per share) 2.04 1.85 (2.77) (1.30) 6.37 1.56 5.87 3.77 $ (0.07) $ 17.57 $ 11.47
Class B Convertible Common Stock [Member]                      
Summary of selected quarterly financial information                      
Net income (loss) attributable to CBI                 $ (1.6) $ 386.4 $ 253.5
Earnings Per Share [Abstract]                      
Net income (loss) per common share attributable to CBI, basic (in dollars per share) 1.91 1.73 (2.52) (1.19) 5.97 1.47 5.55 3.57 $ (0.07) $ 16.57 $ 10.86
Net income (loss) per common share attributable to CBI, diluted (in dollars per share) $ 1.89 $ 1.71 $ (2.52) $ (1.19) $ 5.87 $ 1.45 $ 5.41 $ 3.48 $ (0.07) $ 16.21 $ 10.59