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Debt - Schedule of Maximum Commitments and Net Amounts Available under Credit Facilities (Details) - USD ($) | Jul. 31, 2021 | Oct. 31, 2020 | Oct. 16, 2020 | Apr. 01, 2020
--- | --- | --- | --- | ---
Line of Credit Facility [Line Items] |  |  |  |
Short-term debt | $ 440,100,000 | $ 409,300,000 |  |
Total debt | 1,620,000,000 | 1,793,200,000 |  |
Credit Agreement 2020 and Term Loan Agreement 2020 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Total | 2,490,000,000 |  |  |
Total debt | 1,530,000,000 |  |  |
Credit Agreement 2020 | Line of Credit | Revolving Credit Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Facility Limit | 1,290,000,000 |  |  | $ 1,290,000,000
Outstanding Borrowings | 330,000,000 |  |  |
Outstanding Letters of Credit | 1,400,000 |  |  |
Total Amount Available | 958,600,000 |  |  |
Credit Agreement 2020 | Line of Credit | 2020 Term Loan Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Facility Limit | 850,000,000.0 |  |  | $ 850,000,000
Outstanding Borrowings | 850,000,000.0 |  |  |
Term loan |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Short-term debt | 350,000,000.0 | $ 350,000,000.0 |  |
Term loan | Term Loan Agreement 2020 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Facility Limit | 350,000,000.0 |  | $ 350,000,000 |
Short-term debt | $ 350,000,000 |  |  |

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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The carrying value as of the balance sheet date of the noncurrent portion 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=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=99376301&loc=d3e1336-112600 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=99376301&loc=d3e1314-112600 + Details
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