Annual report pursuant to Section 13 and 15(d)

Selected Quarterly Financial Information (Unaudited) (Details)

v3.4.0.3
Selected Quarterly Financial Information (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Feb. 29, 2016
Nov. 30, 2015
Aug. 31, 2015
May. 31, 2015
Feb. 28, 2015
Nov. 30, 2014
Aug. 31, 2014
May. 31, 2014
Feb. 29, 2016
Feb. 28, 2015
Feb. 28, 2014
Summary of selected quarterly financial information                      
Net sales $ 1,543.2 $ 1,640.5 $ 1,733.4 $ 1,631.3 $ 1,356.2 $ 1,541.7 $ 1,604.1 $ 1,526.0 $ 6,548.4 $ 6,028.0 $ 4,867.7
Gross profit 696.1 733.5 775.6 737.1 597.6 638.9 672.0 670.1 2,942.3 2,578.6 1,991.7
Net income attributable to CBI $ 243.4 $ 270.5 $ 302.4 $ 238.6 $ 214.6 $ 222.2 $ 195.8 $ 206.7 1,054.9 839.3 1,943.1
Class A Common Stock [Member]                      
Summary of selected quarterly financial information                      
Net income attributable to CBI                 $ 940.0 $ 745.6 $ 1,720.2
Net income per common share attributable to CBI:                      
Net income per common share attributable to CBI, basic (in dollars per share) $ 1.23 $ 1.39 $ 1.56 $ 1.24 $ 1.12 $ 1.16 $ 1.03 $ 1.09 $ 5.42 $ 4.40 $ 10.45
Net income per common share attributable to CBI, diluted (in dollars per share) 1.19 1.33 1.49 1.18 1.06 1.10 0.98 1.03 $ 5.18 $ 4.17 $ 9.83
Class B Convertible Common Stock [Member]                      
Summary of selected quarterly financial information                      
Net income attributable to CBI                 $ 114.9 $ 93.7 $ 222.9
Net income per common share attributable to CBI:                      
Net income per common share attributable to CBI, basic (in dollars per share) 1.12 1.26 1.42 1.12 1.02 1.06 0.93 0.99 $ 4.92 $ 4.00 $ 9.50
Net income per common share attributable to CBI, diluted (in dollars per share) $ 1.10 $ 1.22 $ 1.38 $ 1.09 $ 0.98 $ 1.01 $ 0.90 $ 0.95 $ 4.79 $ 3.83 $ 9.04