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REVENUE - Revenue by Region (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2019
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | $ 6,319 | $ 5,339 | $ 5,163
Americas |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 2,404 | 1,968 | 1,861
Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 1,688 | 1,443 | 1,441
Asia Pacific |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 2,227 | 1,928 | 1,861
Life Sciences and Applied Markets |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 2,823 | 2,392 | 2,302
Life Sciences and Applied Markets | Americas |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 951 | 784 | 692
Life Sciences and Applied Markets | Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 658 | 540 | 551
Life Sciences and Applied Markets | Asia Pacific |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 1,214 | 1,068 | 1,059
Diagnostics and Genomics |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 1,296 | 1,047 | 1,021
Diagnostics and Genomics | Americas |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 695 | 517 | 505
Diagnostics and Genomics | Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 417 | 371 | 368
Diagnostics and Genomics | Asia Pacific |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 184 | 159 | 148
Agilent CrossLab |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 2,200 | 1,900 | 1,840
Agilent CrossLab | Americas |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 758 | 667 | 664
Agilent CrossLab | Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 613 | 532 | 522
Agilent CrossLab | Asia Pacific |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | $ 829 | $ 701 | $ 654

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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