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Restructuring and Related Costs - Cumulative Restructuring and Related Charges (Details) $ in Millions | Apr. 30, 2019 USD ($)
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Restructuring Cost and Reserve [Line Items] |
Cumulative charges | $ 96.4
GCA and Other Restructuring Program |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 29.9
2020 Vision Restructuring Program |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 66.5
External Support Fees |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 32.0
External Support Fees | GCA and Other Restructuring Program |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 2.0
External Support Fees | 2020 Vision Restructuring Program |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 30.0
Employee Severance |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 29.5
Employee Severance | GCA and Other Restructuring Program |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 16.6
Employee Severance | 2020 Vision Restructuring Program |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 13.0
Other Project Fees |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 21.3
Other Project Fees | GCA and Other Restructuring Program |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 10.6
Other Project Fees | 2020 Vision Restructuring Program |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 10.7
Lease Exit Costs |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 8.4
Lease Exit Costs | GCA and Other Restructuring Program |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 0.7
Lease Exit Costs | 2020 Vision Restructuring Program |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 7.7
Asset Impairment |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 5.2
Asset Impairment | GCA and Other Restructuring Program |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | 0.0
Asset Impairment | 2020 Vision Restructuring Program |
Restructuring Cost and Reserve [Line Items] |
Cumulative charges | $ 5.2

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- Definition Amount of costs incurred to date for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(d)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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