Annual report pursuant to Section 13 and 15(d)

Borrowings (Details Textual)

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Borrowings (Details Textual) (USD $)
In Millions, unless otherwise specified
 1 Months Ended 11 Months Ended 12 Months Ended 60 Months Ended
Mar. 31, 2010
Nov. 30, 2009
Apr. 30, 2009
Mar. 31, 2009
Feb. 28, 2010
Feb. 29, 2012
Feb. 28, 2010
Aug. 31, 2016
Feb. 28, 2011
Jun. 30, 2010
Borrowings (Textual)                    
Maximum borrowing amount under credit facility           $ 3,842.0        
Pledge of ownership interests in certain of the Company's U.S. subsidiaries           100.00%        
Pledge of voting capital stock of certain of the Company's foreign subsidiaries           65.00%        
Variable rate basis on interest rate swap agreements     one-month LIBOR three-month LIBOR            
Interest rate swap agreements designated as cash flow hedges     1,200.0     500.0     500.0 500.0
Undesignated interest rate swap agreements     1,200.0     0     0  
Payment of interest rate swap agreements 11.9                  
Term of delayed start interest rate swap agreement, years                   5 years
Average interest rate         4.00%     2.90%    
Net gains (losses) reclassified from AOCI to interest expense, net of income tax expense           (3.8) (27.7)      
Proceeds from maturity of foreign currency forward contract   33.2                
Senior Credit Facility - Revolving Credit Loans [Member]
                    
Borrowings (Textual)                    
Maximum borrowing amount under credit facility           842.0        
Sub-facility Letters of Credit [Member]
                    
Borrowings (Textual)                    
Maximum borrowing amount under credit facility           200.0        
Outstanding letters of credit           12.2        
2011 Revolving Facility [Member]
                    
Borrowings (Textual)                    
Maximum borrowing amount under credit facility           192.0        
Maturity date of credit facility           2011-06        
2013 Revolving Facility [Member]
                    
Borrowings (Textual)                    
Maximum borrowing amount under credit facility           650.0        
Maturity date of credit facility           2013-06        
LIBOR margin           2.50%        
Revolving loans available to be drawn           339.8        
Senior notes outstanding           $ 298.0        
Credit facility, interest rate           2.70%