Quarterly report pursuant to Section 13 or 15(d)

Borrowings (Details)

v3.10.0.1
Borrowings (Details) - USD ($)
Nov. 30, 2018
Oct. 31, 2018
Sep. 30, 2018
Aug. 31, 2018
Feb. 28, 2018
Short-term Debt          
Short-term borrowings $ 731,500,000       $ 746,800,000
Long-term Debt          
Other, Current 13,600,000        
Other, Long-term 18,500,000        
Other, Total 32,100,000       268,000,000
Long-term debt, Current 1,065,600,000       22,300,000
Long-term debt, Long-term 11,772,500,000       9,417,600,000
Long-term debt, Total 12,838,100,000       9,439,900,000
Debt instrument, face amount 2,500,000,000        
Term loan credit facilities [Member] | Senior credit facility, Term loan [Member]          
Long-term Debt          
Senior credit facility, Term loans, Current 5,000,000        
Senior credit facility, Term loans, Long-term 489,000,000        
Senior credit facility, Term loans, Total 494,000,000       497,700,000
Term loan credit facilities [Member] | Term Credit Agreement [Member]          
Long-term Debt          
Senior credit facility, Term loans, Current 50,000,000        
Senior credit facility, Term loans, Long-term 1,448,900,000        
Senior credit facility, Term loans, Total 1,498,900,000       0
Debt instrument, face amount 1,500,000,000   $ 1,500,000,000    
Term loan credit facilities [Member] | Term A-1 Facility [Member]          
Long-term Debt          
Senior credit facility, Term loans, Total 494,000,000        
Debt instrument, face amount $ 500,000,000        
Interest rate 3.80%        
LIBOR margin 1.50%        
Term loan credit facilities [Member] | Three-Year Term Facility [Member]          
Long-term Debt          
Senior credit facility, Term loans, Total $ 499,500,000        
Debt instrument, face amount $ 500,000,000   500,000,000    
Interest rate 3.40%        
LIBOR margin 1.13%        
Term loan credit facilities [Member] | Five-Year Term Facility [Member]          
Long-term Debt          
Senior credit facility, Term loans, Total $ 999,400,000        
Debt instrument, face amount $ 1,000,000,000   1,000,000,000    
Interest rate 3.50%        
LIBOR margin 1.25%        
Senior notes [Member]          
Long-term Debt          
Senior notes, Current $ 997,000,000        
Senior notes, Long-term 9,816,100,000        
Senior notes, Total 10,813,100,000       8,674,200,000
Senior notes [Member] | October 2018 Senior Floating Rate Notes [Member]          
Long-term Debt          
Debt instrument, face amount 650,000,000        
Senior notes [Member] | October 2018 Seven Year Senior Notes [Member]          
Long-term Debt          
Debt instrument, face amount $ 500,000,000        
Basis points above adjustment treasury rate 20.00%        
Coupon rate of notes 4.40%        
Senior notes [Member] | October 2018 Ten Year Senior Notes [Member]          
Long-term Debt          
Debt instrument, face amount $ 500,000,000        
Basis points above adjustment treasury rate 25.00%        
Coupon rate of notes 4.65%        
Senior notes [Member] | October 2018 Thirty Year Senior Notes [Member]          
Long-term Debt          
Debt instrument, face amount $ 500,000,000        
Basis points above adjustment treasury rate 30.00%        
Coupon rate of notes 5.25%        
Senior notes [Member] | October 2018 Senior Notes [Member]          
Long-term Debt          
Debt instrument, face amount   $ 2,150,000,000      
Percentage of outstanding principal amount as redemption price 100.00%        
Senior credit facility, Revolving credit loans [Member]          
Short-term Debt          
Short-term borrowings $ 105,000,000       79,000,000
Long-term Debt          
Debt instrument, face amount $ 2,000,000,000.0   $ 2,000,000,000 $ 1,500,000,000.0  
Interest rate 3.40%        
LIBOR margin 1.13%        
Remaining borrowing capacity $ 1,257,200,000        
Letters of Credit [Member]          
Long-term Debt          
Debt instrument, face amount 200,000,000.0        
Outstanding letters of credit 10,700,000        
Commercial paper [Member]          
Short-term Debt          
Short-term borrowings 626,500,000       266,900,000
Long-term Debt          
Debt instrument, face amount $ 627,100,000        
Interest rate 2.70%        
Other [Member]          
Short-term Debt          
Short-term borrowings $ 0       $ 400,900,000