Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Narrative (Details)

v3.22.2.2
Borrowings - Narrative (Details) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
Aug. 31, 2022
Aug. 31, 2022
Jun. 30, 2022
May 31, 2022
Aug. 31, 2022
Aug. 31, 2021
Aug. 31, 2022
Aug. 31, 2021
Apr. 30, 2022
Feb. 28, 2022
Feb. 28, 2018
Oct. 31, 2017
May 31, 2013
Schedule of Debt [Line Items]                          
Short-term borrowings $ 663,900,000 $ 663,900,000     $ 663,900,000   $ 663,900,000     $ 323,000,000.0      
Proceeds from issuance of long-term debt             1,846,800,000 $ 1,001,900,000          
Cash consideration paid on debt             1,654,700,000 1,357,100,000          
Carrying amount of debt 10,286,300,000 10,286,300,000     10,286,300,000   10,286,300,000     10,093,500,000      
Loss on extinguishment of debt         (8,000,000.0) $ (29,400,000) (23,300,000) $ (29,400,000)          
Unsecured debt                          
Schedule of Debt [Line Items]                          
Debt instrument, face amount       $ 1,850,000,000                  
Proceeds from issuance of long-term debt 1,837,400,000                        
Unsecured debt | 3.20% February 2018 Senior Notes                          
Schedule of Debt [Line Items]                          
Debt instrument, face amount                     $ 600,000,000    
Interest rates of notes                     3.20%    
Percentage of total outstanding principal amount of debt settled       67.00%                  
Amount of debt redeemed     $ 198,200,000                    
Unsecured debt | 4.25% May 2013 Senior Notes                          
Schedule of Debt [Line Items]                          
Debt instrument, face amount                         $ 1,050,000,000
Interest rates of notes                         4.25%
Percentage of total outstanding principal amount of debt settled       65.00%                  
Amount of debt redeemed     369,800,000                    
Unsecured debt | 3.20% February 2018 Senior Notes & 4.25% May 2013 Senior Notes                          
Schedule of Debt [Line Items]                          
Cash consideration paid on debt     575,500,000 $ 1,096,000,000                  
Carrying amount of debt     $ 568,000,000 1,080,700,000                  
Loss on extinguishment of debt             (15,300,000)            
Make-whole premium         7,500,000   7,500,000            
Unsecured debt | Three-Year Term Facility                          
Schedule of Debt [Line Items]                          
Debt instrument, face amount 1,000,000,000 $ 1,000,000,000     1,000,000,000   1,000,000,000            
Debt instrument, term   3 years                      
Derivative instruments designated as hedging instruments | Pre-issuance hedge contracts                          
Schedule of Debt [Line Items]                          
Aggregate notional value of derivative instruments on future debt issuances       300,000,000                  
Unrealized gain on hedge contract, net of income tax effect       $ 15,300,000                  
Revolving credit facility                          
Schedule of Debt [Line Items]                          
Debt instrument, face amount 2,250,000,000 $ 2,250,000,000     2,250,000,000   2,250,000,000   $ 2,000,000,000        
Short-term borrowings $ 0 $ 0     $ 0   $ 0            
Weighted average interest rate 0.00% 0.00%     0.00%   0.00%            
Commercial paper                          
Schedule of Debt [Line Items]                          
Debt instrument, face amount $ 664,500,000 $ 664,500,000     $ 664,500,000   $ 664,500,000         $ 2,000,000,000  
Short-term borrowings $ 663,900,000 $ 663,900,000     $ 663,900,000   $ 663,900,000     $ 323,000,000.0      
Weighted average interest rate 3.00% 3.00%     3.00%   3.00%            
Weighted average remaining term 12 days