Annual report pursuant to Section 13 and 15(d)

Stock-Based Employee Compensation (Details Textual)

v2.4.1.9
Stock-Based Employee Compensation (Details Textual) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Feb. 28, 2015
Feb. 28, 2014
Feb. 28, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of stock-based employee compensation plans 2stz_NumberOfShareBasedCompensationArrangementPlans    
Total unrecognized compensation cost related to nonvested stock-based compensation arrangements 74.2us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized    
Expected weighted average period to recognize nonvested stock-based compensation cost 2 years 2 months    
Long-Term Stock Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Aggregate number of shares authorized 108,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= stz_LongTermStockIncentivePlanMember
   
Long-Term Stock Incentive Plan [Member] | Stock options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 4 years    
Expiration period 10 years    
Long-Term Stock Incentive Plan [Member] | Restricted stock awards [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 1 year    
Long-Term Stock Incentive Plan [Member] | Restricted stock awards [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 4 years    
Long-Term Stock Incentive Plan [Member] | Restricted stock units [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 1 year    
Long-Term Stock Incentive Plan [Member] | Restricted stock units [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 4 years    
Long-Term Stock Incentive Plan [Member] | Performance share units [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Target percentage of units to be awarded based on performance, minimum 0.00%stz_ShareBasedCompensationPercentageOfTargetPerformanceMinimum
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_PlanNameAxis
= stz_LongTermStockIncentivePlanMember
   
Target percentage of units to be awarded based on performance, maximum 200.00%stz_ShareBasedCompensationPercentageOfTargetPerformanceMaximum
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_PlanNameAxis
= stz_LongTermStockIncentivePlanMember
   
Long-Term Stock Incentive Plan [Member] | Performance share units [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 1 year    
Long-Term Stock Incentive Plan [Member] | Performance share units [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
1989 Employee Stock Purchase Plan [Member] | Employee stock purchase plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Aggregate number of shares authorized 9,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_PlanNameAxis
= stz_OneThousandNineHundredEightyNineEmployeeStockPurchasePlanMember
   
Purchase price as a percent of the fair market value, lower of the fair market value on the first or last day of the purchase period 85.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_PlanNameAxis
= stz_OneThousandNineHundredEightyNineEmployeeStockPurchasePlanMember
   
Shares purchased under employee stock purchase plan 117,301us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_PlanNameAxis
= stz_OneThousandNineHundredEightyNineEmployeeStockPurchasePlanMember
163,817us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_PlanNameAxis
= stz_OneThousandNineHundredEightyNineEmployeeStockPurchasePlanMember
210,895us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockMember
/ us-gaap_PlanNameAxis
= stz_OneThousandNineHundredEightyNineEmployeeStockPurchasePlanMember