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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (By Fair Value Hierarchy) (Details) - USD ($) $ in Millions	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
UNITED STATES | Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	$ 615	$ 575	$ 515
Other assets	0	0
UNITED STATES | Pension Plan [Member] | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	14	4
UNITED STATES | Pension Plan [Member] | Cash and cash equivalents at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Pension Plan [Member] | Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	428	392
UNITED STATES | Pension Plan [Member] | Equity at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	297	271
UNITED STATES | Pension Plan [Member] | Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	173	179
UNITED STATES | Pension Plan [Member] | Fixed Income securities at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	58	71
UNITED STATES | Pension Plan [Member] | Other investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Pension Plan [Member] | Other assets at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Pension Plan [Member] | Total assets at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	355	342
UNITED STATES | Pension Plan [Member] | Significant Other Observable Inputs (Level 2)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	116	99
UNITED STATES | Pension Plan [Member] | Significant Other Observable Inputs (Level 2) | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	14	4
UNITED STATES | Pension Plan [Member] | Significant Other Observable Inputs (Level 2) | Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	1	1
UNITED STATES | Pension Plan [Member] | Significant Other Observable Inputs (Level 2) | Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	101	94
UNITED STATES | Pension Plan [Member] | Significant Other Observable Inputs (Level 2) | Other investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Pension Plan [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Pension Plan [Member] | Significant Unobservable Inputs (Level 3) | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Pension Plan [Member] | Significant Unobservable Inputs (Level 3) | Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Pension Plan [Member] | Significant Unobservable Inputs (Level 3) | Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Pension Plan [Member] | Significant Unobservable Inputs (Level 3) | Other investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	144	134
UNITED STATES | Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	130	120
UNITED STATES | Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	14	14
UNITED STATES | Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	176	172	182
Other assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member] | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	5	1
UNITED STATES | Other Postretirement Benefits Plan [Member] | Cash and cash equivalents at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member] | Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	121	120
UNITED STATES | Other Postretirement Benefits Plan [Member] | Equity at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	84	83
UNITED STATES | Other Postretirement Benefits Plan [Member] | Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	50	51
UNITED STATES | Other Postretirement Benefits Plan [Member] | Fixed Income securities at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	17	20
UNITED STATES | Other Postretirement Benefits Plan [Member] | Other investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member] | Other assets at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member] | Total assets at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	101	103
UNITED STATES | Other Postretirement Benefits Plan [Member] | Significant Other Observable Inputs (Level 2)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	34	28
UNITED STATES | Other Postretirement Benefits Plan [Member] | Significant Other Observable Inputs (Level 2) | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	5	1
UNITED STATES | Other Postretirement Benefits Plan [Member] | Significant Other Observable Inputs (Level 2) | Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member] | Significant Other Observable Inputs (Level 2) | Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	29	27
UNITED STATES | Other Postretirement Benefits Plan [Member] | Significant Other Observable Inputs (Level 2) | Other investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member] | Significant Unobservable Inputs (Level 3) | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member] | Significant Unobservable Inputs (Level 3) | Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member] | Significant Unobservable Inputs (Level 3) | Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member] | Significant Unobservable Inputs (Level 3) | Other investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	41	41
UNITED STATES | Other Postretirement Benefits Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
UNITED STATES | Other Postretirement Benefits Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	37	37
UNITED STATES | Other Postretirement Benefits Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	4	4
UNITED STATES | Other Postretirement Benefits Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	1,538	1,392	1,440
Other assets	297	257
Foreign Plan [Member] | Pension Plan [Member] | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] | Pension Plan [Member] | Cash and cash equivalents at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] | Pension Plan [Member] | Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	659	791
Foreign Plan [Member] | Pension Plan [Member] | Equity at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	506	656
Foreign Plan [Member] | Pension Plan [Member] | Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	879	595
Foreign Plan [Member] | Pension Plan [Member] | Fixed Income securities at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	677	387
Foreign Plan [Member] | Pension Plan [Member] | Other investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	6
Foreign Plan [Member] | Pension Plan [Member] | Other assets at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	3
Foreign Plan [Member] | Pension Plan [Member] | Total assets at NAV [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	1,183	1,046
Foreign Plan [Member] | Pension Plan [Member] | Significant Other Observable Inputs (Level 2)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	202	208
Foreign Plan [Member] | Pension Plan [Member] | Significant Other Observable Inputs (Level 2) | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] | Pension Plan [Member] | Significant Other Observable Inputs (Level 2) | Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] | Pension Plan [Member] | Significant Other Observable Inputs (Level 2) | Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	202	208
Foreign Plan [Member] | Pension Plan [Member] | Significant Other Observable Inputs (Level 2) | Other investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] | Pension Plan [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	3	$ 3
Foreign Plan [Member] | Pension Plan [Member] | Significant Unobservable Inputs (Level 3) | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] | Pension Plan [Member] | Significant Unobservable Inputs (Level 3) | Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] | Pension Plan [Member] | Significant Unobservable Inputs (Level 3) | Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] | Pension Plan [Member] | Significant Unobservable Inputs (Level 3) | Other investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	3
Foreign Plan [Member] | Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	153	135
Foreign Plan [Member] | Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] | Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	153	135
Foreign Plan [Member] | Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Fixed income
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
Foreign Plan [Member] | Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	$ 0	$ 0

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