Annual report pursuant to Section 13 and 15(d)

Acquisitions (Details 1)

v3.4.0.3
Acquisitions (Details 1) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 12 Months Ended
Feb. 29, 2016
Feb. 28, 2015
Feb. 28, 2014
Class A Common Stock [Member]      
Business Acquisition [Line Items]      
Weighted average common shares outstanding, basic 173,383 169,325 164,687
Weighted average common shares outstanding, diluted 203,821 201,224 197,570
Class B Convertible Common Stock [Member]      
Business Acquisition [Line Items]      
Weighted average common shares outstanding, basic 23,363 23,397 23,467
Weighted average common shares outstanding, diluted 23,363 23,397 23,467
Beer Business Acquisition [Member]      
Business Acquisition [Line Items]      
Net sales     $ 5,485.1
Income before income taxes     707.7
Net income attributable to CBI     $ 398.6
Beer Business Acquisition [Member] | Class A Common Stock [Member]      
Business Acquisition [Line Items]      
Net income per common share attributable to CBI, basic     $ 2.14
Net income per common share attributable to CBI, diluted     2.02
Beer Business Acquisition [Member] | Class B Convertible Common Stock [Member]      
Business Acquisition [Line Items]      
Net income per common share attributable to CBI, basic     1.95
Net income per common share attributable to CBI, diluted     $ 1.85