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Debt - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Nov. 01, 2018
Nov. 01, 2017
Mar. 01, 2016
Jul. 31, 2019
Jul. 31, 2019
Oct. 31, 2018
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Short-term debt       $ 390,000,000.0 $ 390,000,000.0 $ 37,100,000
Term loans            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Short-term debt       325,000,000.0 325,000,000.0 0
Term loans            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt outstanding       1,425,000,000.0 1,425,000,000.0 1,550,000,000.0
Line of Credit | Revolving Credit Facility            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt outstanding       0 0 $ 439,000,000.0
Term Loan Agreement 2018 | Term loans            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt instrument, face amount $ 400,000,000.0          
Debt term 364 days          
Short-term debt       $ 325,000,000.0 $ 325,000,000.0  
Weighted average interest rate       3.02% 3.04%  
Term Loan Agreement 2018 | Term loans | Base Rate            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt instrument, basis spread on variable rate 0.00%          
Term Loan Agreement 2018 | Term loans | London Interbank Offered Rate (LIBOR)            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt instrument, basis spread on variable rate 0.60%          
Term Loan Agreement 2017 | Term loans            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt instrument, face amount   $ 1,425,000,000        
Debt term   5 years        
Debt outstanding       $ 1,425,000,000 $ 1,425,000,000  
Interest rate       3.36% 3.36%  
Term Loan Agreement 2017 | Term loans | Base Rate | Minimum            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt instrument, basis spread on variable rate   0.00%        
Term Loan Agreement 2017 | Term loans | Base Rate | Maximum            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt instrument, basis spread on variable rate   0.75%        
Term Loan Agreement 2017 | Term loans | London Interbank Offered Rate (LIBOR) | Minimum            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt instrument, basis spread on variable rate   1.00%        
Term Loan Agreement 2017 | Term loans | London Interbank Offered Rate (LIBOR) | Maximum            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt instrument, basis spread on variable rate   1.75%        
Credit Agreement 2016 | Line of Credit | Revolving Credit Facility            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Aggregate principal amount     $ 1,000,000,000.0      
Amount available under revolving credit facility       $ 998,800,000 $ 998,800,000  
Credit Agreement 2016 | Line of Credit | Revolving Credit Facility | Minimum            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Commitment fee percentage     0.125%      
Credit Agreement 2016 | Line of Credit | Revolving Credit Facility | Maximum            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Commitment fee percentage     0.25%      
Credit Agreement 2016 | Line of Credit | Term Loan Facility 2016            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Aggregate principal amount     $ 830,000,000.0      
Potential additional borrowing capacity     $ 750,000,000.0      
Debt outstanding       $ 0 $ 0  
Credit Agreement 2016 | Line of Credit | Revolving Credit Facility and Term Loan Facility 2016            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Required minimum interest coverage ratio         3.00  
Required maximum total leverage ratio         3.75  
Credit Agreement 2016 | Line of Credit | Revolving Credit Facility and Term Loan Facility 2016 | Base Rate | Minimum            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt instrument, basis spread on variable rate     0.00%      
Credit Agreement 2016 | Line of Credit | Revolving Credit Facility and Term Loan Facility 2016 | Base Rate | Maximum            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt instrument, basis spread on variable rate     0.75%      
Credit Agreement 2016 | Line of Credit | Revolving Credit Facility and Term Loan Facility 2016 | London Interbank Offered Rate (LIBOR) | Minimum            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt instrument, basis spread on variable rate     1.00%      
Credit Agreement 2016 | Line of Credit | Revolving Credit Facility and Term Loan Facility 2016 | London Interbank Offered Rate (LIBOR) | Maximum            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Debt instrument, basis spread on variable rate     1.75%      
Term Loan Agreement 2018 and 2017 and Credit Agreement 2016            
Schedule of Long Term And Short Term Debt Instruments [Line Items]            
Interest coverage ratio       12.24 12.24  
Total leverage ratio       1.83 1.83