Quarterly report pursuant to Section 13 or 15(d)

Accounting Guidance (Details Textual)

v3.8.0.1
Accounting Guidance (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Nov. 30, 2017
Nov. 30, 2016
Nov. 30, 2017
Nov. 30, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Provision for income taxes $ 149.5 $ 78.9 $ 352.3 $ 392.2
Accounting Standards Update 2016-09 [Member]        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Provision for income taxes $ (10.5)   $ (61.8)  
Net income per common share attributable to CBI, diluted $ 0.02   $ 0.07