Debt - Narrative (Details) - USD ($) | Sep. 27, 2019 | Nov. 01, 2017 | Mar. 01, 2016 | Jan. 31, 2020 | Oct. 31, 2019 | Nov. 01, 2018 |
Schedule of Long Term And Short Term Debt Instruments [Line Items] | | | | | | |
Short-term debt | | | | $ 543,000,000 | $ 563,700,000 | |
Term loans | | | | | | |
Schedule of Long Term And Short Term Debt Instruments [Line Items] | | | | | | |
Short-term debt | | | | 500,000,000 | 500,000,000 | |
Term loans | | | | | | |
Schedule of Long Term And Short Term Debt Instruments [Line Items] | | | | | | |
Debt outstanding | | | | 1,000,000,000 | 1,000,000,000 | |
Line of Credit | Revolving Credit Facility | | | | | | |
Schedule of Long Term And Short Term Debt Instruments [Line Items] | | | | | | |
Debt outstanding | | | | 235,000,000 | $ 264,000,000 | |
Term Loan Agreement 2019 | Term loans | | | | | | |
Schedule of Long Term And Short Term Debt Instruments [Line Items] | | | | | | |
Debt instrument, face amount | $ 500,000,000 | | | | | |
Debt term | 364 days | | | | | |
Short-term debt | | | | $ 500,000,000 | | |
Weighted average interest rate | | | | 2.35% | | |
Term Loan Agreement 2019 | 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 2019 | 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 2018 | Term loans | | | | | | |
Schedule of Long Term And Short Term Debt Instruments [Line Items] | | | | | | |
Debt instrument, face amount | | | | | | $ 400,000,000 |
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 | | | | $ 1,000,000,000 | | |
Interest rate | | | | 2.91% | | |
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 | | | |
Debt outstanding | | | | $ 235,000,000 | | |
Amount available under revolving credit facility | | | | 763,800,000 | | |
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 | | | |
Potential additional borrowing capacity | | | $ 750,000,000 | | | |
Debt outstanding | | | | $ 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 | | | |
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 | | | | 15.26 | | |
Total leverage ratio | | | | 1.82 | | |