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.

Reference 1: 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=118956577&loc=SL49130543-203045

Reference 2: 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=118956577&loc=SL49130545-203045

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

REVENUE - Revenue by End Markets (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Disaggregation of Revenue [Line Items]
Net revenue	$ 5,163	$ 4,914	$ 4,472
Pharmaceutical and Biopharmaceutical Market
Disaggregation of Revenue [Line Items]
Net revenue	1,604
Chemical and Energy Market
Disaggregation of Revenue [Line Items]
Net revenue	1,199
Diagnostics and Clinical Market
Disaggregation of Revenue [Line Items]
Net revenue	785
Food Market
Disaggregation of Revenue [Line Items]
Net revenue	486
Academia and Government Market
Disaggregation of Revenue [Line Items]
Net revenue	474
Environmental and Forensics Market
Disaggregation of Revenue [Line Items]
Net revenue	$ 615