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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 |

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- Definition Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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