Annual report pursuant to Section 13 and 15(d)

Borrowings (Senior Credit Facility) (Details Textual)

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Borrowings (Senior Credit Facility) (Details Textual) (USD $)
1 Months Ended 12 Months Ended 53 Months Ended 60 Months Ended
Apr. 30, 2012
Mar. 31, 2012
Feb. 28, 2013
Feb. 29, 2012
Feb. 28, 2011
Sep. 01, 2016
Sep. 01, 2016
Sep. 02, 2011
Jun. 30, 2010
Schedule of Debt [Line Items]                  
Maximum borrowing amount under credit facility     $ 2,225,000,000.0            
Incremental borrowings, Minimum     25,000,000            
Incremental borrowings, Maximum, Term A-2 Facility, Outstanding and undrawn     500,000,000            
Incremental borrowings, Maximum, Term A-2 Facility, Terminated     750,000,000            
Incremental borrowings, Maximum, Term A-2 Facility, Outstanding and drawn, Unadjusted     750,000,000            
Incremental borrowings, Maximum, Term A-2 Facility, Outstanding and drawn, Adjustment     325,000,000            
Pledge of ownership interests in certain of Company's domestic subsidiaries     100.00%            
Pledge of voting capital stock interests in certain of Company's foreign subsidiaries, Minimum     55.00%            
Pledge of voting capital stock interests in certain of Company's foreign subsidiaries, Maximum     65.00%            
Length of delayed start interest rate swap agreement, years               5 years  
Notional value of cash flow designated interest rate swap agreements outstanding 500,000,000   500,000,000 500,000,000       500,000,000 500,000,000
Variable rate basis on interest rate swap agreements one-month LIBOR base rate three-month LIBOR base rate              
Derivative fixed average interest rate           2.80% 2.90%    
Notional value of undesignated interest rate swap agreements outstanding 500,000,000   1,000,000,000 0          
Cash flow hedge loss reclassified to interest expense, net     (8,000,000) (3,800,000) 0        
Term A Facility [Member]
                 
Schedule of Debt [Line Items]                  
Maximum borrowing amount under credit facility     550,000,000            
Maturity date of credit facility     May 03, 2017            
LIBOR margin     1.50%            
Senior notes outstanding     515,600,000            
Credit facility, interest rate     2.00%            
Term A-1 Facility [Member]
                 
Schedule of Debt [Line Items]                  
Maximum borrowing amount under credit facility     250,000,000            
Maturity date of credit facility     May 03, 2019            
LIBOR margin     1.75%            
Senior notes outstanding     246,900,000            
Credit facility, interest rate     2.20%            
Term A-2 Facility [Member]
                 
Schedule of Debt [Line Items]                  
Maximum borrowing amount under credit facility     575,000,000.0            
Maturity date of credit facility     Aug. 08, 2017            
Senior Credit Facility - Revolving Credit Loans [Member]
                 
Schedule of Debt [Line Items]                  
Maximum borrowing amount under credit facility     850,000,000            
Maturity date of credit facility     May 03, 2017            
LIBOR margin     1.50%            
Remaining borrowing capacity     835,500,000            
Sub-facility Letters of Credit [Member]
                 
Schedule of Debt [Line Items]                  
Maximum borrowing amount under credit facility     200,000,000            
Outstanding letters of credit     $ 14,500,000