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Stockholders' Equity - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 30, 2019 | Oct. 31, 2018 | Nov. 01, 2018 | [1] | Nov. 01, 2017
Class of Stock [Line Items] |  |  |  |
ASU 2016-16 adoption |  |  | $ (13.3) | $ 4.8
Foreign Currency Translation Adjustment [Roll Forward] |  |  |  |
Foreign Currency Translation Adjustment, Beginning Balance | $ (412.2) | $ (353.7) |  |
Foreign Currency Translation Adjustment, Gross change in value for the period | 14.1 | (58.5) |  |
Foreign Currency Translation Adjustment, tax effect |  | 0.0 |  |
Foreign Currency Translation Adjustment, Ending Balance | (398.1) | (412.2) |  |
Minimum Pension Liability [Roll Forward] |  |  |  |
Minimum Pension Liability, Beginning Balance | (18.5) | (21.6) |  |
Minimum Pension Liability, Gross change in value for the period | 0.0 | 11.0 |  |
Minimum Pension Liability, tax effect |  | (3.1) |  |
Minimum Pension Liability, Ending Balance | (18.5) | (18.5) |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Total, Beginning balance | (430.7) | (375.3) |  |
Gross change in value for the period | 14.1 | (47.5) |  |
Tax effect for the period |  | (3.1) |  |
Total, Ending balance | $ (416.6) | $ (430.7) |  |
Foreign Currency Translation Adjustment |  |  |  |
Class of Stock [Line Items] |  |  |  |
ASU 2016-16 adoption |  |  |  | 0.0
Minimum Pension Liability |  |  |  |
Class of Stock [Line Items] |  |  |  |
ASU 2016-16 adoption |  |  |  | $ 4.8
[1] | We adopted ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory in the first quarter of fiscal 2019. Refer to “Note 1. General" for further information.

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- Definition Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580 + Details
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- Definition Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e637-108580 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e681-108580 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=109240241&loc=d3e32022-110900 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580 + Details
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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e681-108580 + Details
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