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ovidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod":{"label":"Defined 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ligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation":{"label":"Defined 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transaction.","units":{"USD":[{"start":"2008-10-31","end":"2009-10-31","val":23000000,"accn":"0000808450-11-000104","fy":2011,"fp":"FY","form":"10-K","filed":"2011-12-20","frame":"CY2009"},{"start":"2009-10-31","end":"2010-10-31","val":0,"accn":"0001193125-13-123427","fy":2012,"fp":"FY","form":"8-K","filed":"2013-03-25","frame":"CY2010"},{"start":"2009-10-31","end":"2010-10-31","val":0,"accn":"0000808450-12-000067","fy":2012,"fp":"FY","form":"10-K","filed":"2012-12-19"},{"start":"2009-10-31","end":"2010-10-31","val":0,"accn":"0000808450-11-000104","fy":2011,"fp":"FY","form":"10-K","filed":"2011-12-20"},{"start":"2010-10-31","end":"2011-10-31","val":6000000,"accn":"0001193125-13-123427","fy":2012,"fp":"FY","form":"8-K","filed":"2013-03-25"},{"start":"2010-10-31","end":"2011-10-31","val":6000000,"accn":"0000808450-13-000084","fy":2013,"fp":"FY","form":"10-K","filed":"2013-12-20","frame":"CY2011"},{"start":"2010-10-31","end":"2011-10-31","val":6000000,"accn":"0000808450-12-000067","fy":2012,"fp":"FY","form":"10-K","filed":"2012-12-19"},{"start":"2010-10-31","end":"2011-10-31","val":6000000,"accn":"0000808450-11-000104","fy":2011,"fp":"FY","form":"10-K","filed":"2011-12-20"},{"start":"2011-11-01","end":"2012-10-31","val":0,"accn":"0001193125-13-123427","fy":2012,"fp":"FY","form":"8-K","filed":"2013-03-25"},{"start":"2011-11-01","end":"2012-10-31","val":0,"accn":"0000808450-13-000084","fy":2013,"fp":"FY","form":"10-K","filed":"2013-12-20","frame":"CY2012"},{"start":"2011-11-01","end":"2012-10-31","val":0,"accn":"0000808450-12-000067","fy":2012,"fp":"FY","form":"10-K","filed":"2012-12-19"},{"start":"2012-10-31","end":"2013-10-31","val":0,"accn":"0000808450-13-000084","fy":2013,"fp":"FY","form":"10-K","filed":"2013-12-20","frame":"CY2013"}]}},"GainLossOnSaleOfPropertyPlantEquipment":{"label":"Gain 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omeExpense":{"label":"Effective 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17-03-07"},{"start":"2016-11-01","end":"2017-01-31","val":2000000,"accn":"0000808450-18-000032","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-03-08","frame":"CY2016Q4"},{"start":"2016-11-01","end":"2017-04-30","val":4000000,"accn":"0000808450-17-000091","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-06-07"},{"start":"2016-11-01","end":"2017-04-30","val":4000000,"accn":"0000808450-18-000075","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-06-05"},{"start":"2016-11-01","end":"2017-07-31","val":12000000,"accn":"0000808450-17-000112","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-09-06"},{"start":"2016-11-01","end":"2017-07-31","val":12000000,"accn":"0000808450-18-000149","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-09-06"},{"start":"2016-11-01","end":"2017-10-31","val":13000000,"accn":"0000808450-17-000140","fy":2017,"fp":"FY","form":"10-K","filed":"2017-12-19"},{"start":"2016-11-01","end":"2017-10-31","val":13000000,"accn":"0000808450-18-000227","fy":2018,"fp":"FY","form":"10-K","filed":"2018-12-18","frame":"CY2017"},{"start":"2017-11-01","end":"2018-01-31","val":4000000,"accn":"0000808450-18-000032","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-03-08","frame":"CY2017Q4"},{"start":"2017-11-01","end":"2018-04-30","val":5000000,"accn":"0000808450-18-000075","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-06-05"},{"start":"2017-11-01","end":"2018-07-31","val":5000000,"accn":"0000808450-18-000149","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-09-06"},{"start":"2017-11-01","end":"2018-10-31","val":10000000,"accn":"0000808450-18-000227","fy":2018,"fp":"FY","form":"10-K","filed":"2018-12-18","frame":"CY2018"},{"start":"2020-11-01","end":"2021-04-30","val":0,"accn":"0000808450-21-000042","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-06-08"}]}},"PaymentsForRoyalties":{"label":"Payments 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Amount excludes temporary equity. 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This element is used when state law does not recognize treasury stock.","units":{"shares":[{"start":"2014-11-01","end":"2015-10-31","val":0,"accn":"0000808450-17-000140","fy":2017,"fp":"FY","form":"10-K","filed":"2017-12-19"},{"start":"2014-11-01","end":"2015-10-31","val":0,"accn":"0000808450-18-000227","fy":2018,"fp":"FY","form":"10-K","filed":"2018-12-18","frame":"CY2015"},{"start":"2015-11-01","end":"2016-10-31","val":0,"accn":"0000808450-17-000140","fy":2017,"fp":"FY","form":"10-K","filed":"2017-12-19"},{"start":"2015-11-01","end":"2016-10-31","val":100000,"accn":"0000808450-19-000241","fy":2019,"fp":"FY","form":"10-K","filed":"2019-12-17"},{"start":"2015-11-01","end":"2016-10-31","val":100000,"accn":"0000808450-20-000105","fy":2020,"fp":"FY","form":"10-K","filed":"2020-12-17","frame":"CY2016"},{"start":"2016-11-01","end":"2017-10-31","val":-100000,"accn":"0000808450-17-000140","fy":2017,"fp":"FY","form":"10-K","filed":"2017-12-19"},{"start":"2016-11-01","end":"2017-10-31","val":100000,"accn":"0000808450-18-000227","fy":2018,"fp":"FY","form":"10-K","filed":"2018-12-18","frame":"CY2017"},{"start":"2017-11-01","end":"2018-10-31","val":100000,"accn":"0000808450-18-000227","fy":2018,"fp":"FY","form":"10-K","filed":"2018-12-18"},{"start":"2017-11-01","end":"2018-10-31","val":100000,"accn":"0000808450-19-000241","fy":2019,"fp":"FY","form":"10-K","filed":"2019-12-17","frame":"CY2018"},{"start":"2018-11-01","end":"2019-10-31","val":200000,"accn":"0000808450-19-000241","fy":2019,"fp":"FY","form":"10-K","filed":"2019-12-17"},{"start":"2018-11-01","end":"2019-10-31","val":200000,"accn":"0000808450-20-000105","fy":2020,"fp":"FY","form":"10-K","filed":"2020-12-17","frame":"CY2019"},{"start":"2019-11-01","end":"2020-10-31","val":200000,"accn":"0000808450-20-000105","fy":2020,"fp":"FY","form":"10-K","filed":"2020-12-17","frame":"CY2020"}]}},"StockRepurchaseProgramAuthorizedAmount":{"label":"Stock Repurchase Program, Authorized Amount (Deprecated 2014-01-31)","description":"Amount of a stock repurchase plan authorized by an entity's Board of Directors.","units":{"USD":[{"start":"2008-07-31","end":"2009-07-31","val":36000000,"accn":"0000808450-11-000104","fy":2011,"fp":"FY","form":"10-K","filed":"2011-12-20","frame":"CY2009"},{"start":"2010-10-31","end":"2011-10-31","val":105000000,"accn":"0000808450-13-000084","fy":2013,"fp":"FY","form":"10-K","filed":"2013-12-20","frame":"CY2011"},{"start":"2011-11-01","end":"2012-10-31","val":75000000,"accn":"0000808450-13-000084","fy":2013,"fp":"FY","form":"10-K","filed":"2013-12-20","frame":"CY2012"}]}},"StockRepurchaseProgramAuthorizedAmount1":{"label":"Stock Repurchase Program, Authorized Amount","description":"Amount of stock repurchase plan authorized.","units":{"USD":[{"end":"2012-10-31","val":75000000,"accn":"0000808450-14-000085","fy":2014,"fp":"FY","form":"10-K","filed":"2014-12-16","frame":"CY2012Q3I"}]}},"StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount":{"label":"Stock Repurchase Program, Remaining Authorized Repurchase Amount (Deprecated 2014-01-31)","description":"Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors.","units":{"USD":[{"start":"2010-10-31","end":"2011-10-31","val":-20000000,"accn":"0000808450-13-000084","fy":2013,"fp":"FY","form":"10-K","filed":"2013-12-20","frame":"CY2011"},{"start":"2010-10-31","end":"2011-10-31","val":-20000000,"accn":"0000808450-12-000067","fy":2012,"fp":"FY","form":"10-K","filed":"2012-12-19"}]}},"SubleaseIncome":{"label":"Sublease Income","description":"Amount of sublease income excluding finance and operating lease expense.","units":{"USD":[{"start":"2017-11-01","end":"2018-10-31","val":5000000,"accn":"0000808450-20-000105","fy":2020,"fp":"FY","form":"10-K","filed":"2020-12-17","frame":"CY2018"},{"start":"2018-11-01","end":"2019-10-31","val":3000000,"accn":"0000808450-20-000105","fy":2020,"fp":"FY","form":"10-K","filed":"2020-12-17","frame":"CY2019"},{"start":"2019-11-01","end":"2020-10-31","val":3000000,"accn":"0000808450-20-000105","fy":2020,"fp":"FY","form":"10-K","filed":"2020-12-17","frame":"CY2020"}]}},"TaxAdjustmentsSettlementsAndUnusualProvisions":{"label":"Tax Adjustments, Settlements, and Unusual Provisions","description":"Amount of increase (decrease) to previously recorded tax expense. 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