Quarterly report pursuant to Section 13 or 15(d)

Borrowings (Details)

v3.20.2
Borrowings (Details) - USD ($)
 3 Months Ended
May 31, 2020
Apr. 30, 2020
May 31, 2020
May 31, 2019
Mar. 31, 2020
Feb. 29, 2020
Short-term Debt            
Short-term borrowings $ 0   $ 0     $ 238,900,000
Long-term Debt            
Other, Current 10,700,000   10,700,000      
Other, Long-term 11,300,000   11,300,000      
Other, Total 22,000,000.0   22,000,000.0     25,300,000
Long-term debt, Current 534,700,000   534,700,000     734,900,000
Long-term debt, Long-term 11,639,300,000   11,639,300,000     11,210,800,000
Long-term debt, Total 12,174,000,000.0   12,174,000,000.0     11,945,700,000
Debt instrument, face amount         $ 2,000,000,000.0  
Partial repayment     959,500,000 $ 22,900,000    
Unsecured debt [Member]            
Long-term Debt            
Percentage of outstanding principal amount as redemption price   100.00%        
Unsecured debt [Member] | Term Loan Credit Facilities [Member]            
Long-term Debt            
Unsecured debt, Current 24,600,000   24,600,000      
Unsecured debt, Long-term 1,015,100,000   1,015,100,000      
Unsecured debt, Total 1,039,700,000   1,039,700,000     1,295,700,000
Unsecured debt [Member] | Senior notes [Member]            
Long-term Debt            
Unsecured debt, Current 499,400,000   499,400,000      
Unsecured debt, Long-term 10,612,900,000   10,612,900,000      
Unsecured debt, Total 11,112,300,000   11,112,300,000     10,624,700,000
Unsecured debt [Member] | Three-Year Term Facility [Member]            
Long-term Debt            
Unsecured debt, Total 249,800,000   249,800,000      
Debt instrument, face amount $ 500,000,000.0   $ 500,000,000.0   500,000,000.0  
Interest rate 1.50%   1.50%      
LIBOR margin 1.13%   1.13%      
Partial repayment     $ 250,000,000.0      
Unsecured debt [Member] | Five-Year Term Facility [Member]            
Long-term Debt            
Unsecured debt, Total $ 317,100,000   317,100,000      
Debt instrument, face amount $ 1,000,000,000.0   $ 1,000,000,000.0   1,000,000,000.0  
Interest rate 1.60%   1.60%      
LIBOR margin 1.25%   1.25%      
Partial repayment     $ 645,000,000.0      
Unsecured debt [Member] | Term Credit Agreement [Member]            
Long-term Debt            
Debt instrument, face amount $ 1,500,000,000.0   1,500,000,000.0   1,500,000,000  
Unsecured debt [Member] | 2019 Five-Year Term Facility [Member]            
Long-term Debt            
Unsecured debt, Total 472,800,000   472,800,000      
Debt instrument, face amount $ 491,300,000   $ 491,300,000   $ 491,300,000  
Interest rate 1.20%   1.20%      
LIBOR margin 0.88%   0.88%      
Unsecured debt [Member] | April 2020 Senior Notes [Member]            
Long-term Debt            
Debt instrument, face amount   $ 1,200,000,000.0        
Unsecured debt [Member] | 2.875% April 2020 Senior Notes [Member]            
Long-term Debt            
Debt instrument, face amount   $ 600,000,000.0        
Coupon rates of notes   2.875%        
Basis points above adjusted treasury rate 35.00%          
Unsecured debt [Member] | 3.75% April 2020 Senior Notes [Member]            
Long-term Debt            
Debt instrument, face amount   $ 600,000,000.0        
Coupon rates of notes   3.75%        
Basis points above adjusted treasury rate 40.00%          
Commercial paper [Member]            
Short-term Debt            
Short-term borrowings $ 0   $ 0     $ 238,900,000
Senior credit facility, Revolving credit loans [Member]            
Short-term Debt            
Short-term borrowings 0   0      
Long-term Debt            
Debt instrument, face amount $ 2,000,000,000.0   $ 2,000,000,000.0      
Interest rate 0.00%   0.00%      
LIBOR margin 0.00%   0.00%      
Remaining borrowing capacity $ 1,988,200,000   $ 1,988,200,000      
Letters of credit [Member]            
Long-term Debt            
Debt instrument, face amount 200,000,000.0   200,000,000.0      
Outstanding letters of credit $ 11,800,000   $ 11,800,000