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v3.19.1

Debt (Narrative) (Details) |  |  |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Nov. 01, 2018 USD ($) | Nov. 01, 2017 USD ($) | Mar. 01, 2016 USD ($) | Apr. 30, 2019 USD ($) | Apr. 30, 2019 USD ($) | Oct. 31, 2018 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |  |
Short-term debt (Note 6) |  |  |  | $ 454,600,000 | $ 454,600,000 | $ 37,100,000
Term loans |  |  |  | $ 1,475,000,000 | $ 1,475,000,000 | $ 1,550,000,000
Required minimum Interest coverage ratio |  |  |  |  | 3.00 |
Required maximum total leverage ratio |  |  |  |  | 3.75 |
Interest coverage ratio |  |  |  | 11.17 | 11.17 |
Total leverage ratio |  |  |  | 1.99 | 1.99 |
Minimum |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Commitment fee percentage |  |  | 0.125% |  |  |
Maximum |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Commitment fee percentage |  |  | 0.25% |  |  |
2016 Credit Agreement |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Line of credit facility, potential additional borrowing capacity |  |  | $ 750,000,000 |  |  |
Revolving Credit Facility |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Aggregate commitment amount of credit facility |  |  | $ 1,000,000,000.0 |  |  |
2017 Term Loan | Base Rate | Minimum |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  | 0.00% |  |  |  |
2017 Term Loan | Base Rate | Maximum |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  | 0.75% |  |  |  |
2017 Term Loan | London Interbank Offered Rate (LIBOR) | Minimum |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  | 1.00% |  |  |  |
2017 Term Loan | London Interbank Offered Rate (LIBOR) | Maximum |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  | 1.75% |  |  |  |
2016 Credit Agreement |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Line of credit facility, initiation date |  |  | Mar. 01, 2016 |  |  |
Term loans |  |  | $ 830,000,000 |  |  |
Line of credit facility interest rate margin on base rate loans percentage |  |  | 1.00% |  |  |
Line of credit facility interest rate margin on foreign currency loans percentage |  |  | 1.75% |  |  |
Amount available under the credit agreement |  |  |  | $ 999,500,000 | $ 999,500,000 |
2016 Credit Agreement | Federal Funds Rate |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  | 0.00% |  |  |
2016 Credit Agreement | Eurodollar |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  | 0.75% |  |  |
Line of Credit |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt instrument, maturity date |  |  | Mar. 01, 2021 |  |  |
Term Loan Agreement 2019 | Senior Notes |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt term | 364 days |  |  |  |  |
Debt instrument, face amount | $ 400,000,000.0 |  |  |  |  |
Short-term debt (Note 6) |  |  |  | $ 400,000,000 | $ 400,000,000 |
Weighted average interest rate |  |  |  | 3.10% | 3.04% |
Term Loan Agreement 2019 | Senior Notes | Base Rate |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt instrument, basis spread on variable rate | 0.00% |  |  |  |  |
Term Loan Agreement 2019 | Senior Notes | London Interbank Offered Rate (LIBOR) |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt instrument, basis spread on variable rate | 0.60% |  |  |  |  |
Senior Unsecured Term Loan Agreement | Senior Notes |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt term |  | 5 years |  |  |  |
Debt instrument, face amount |  | $ 1,425,000,000 |  |  |  |
Interest rate |  |  |  | 3.75% | 3.75% |
Term loans |  |  |  | $ 1,425,000,000 | $ 1,425,000,000 |
Amount outstanding on credit agreement |  |  |  |  | $ 50,000,000 |

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