RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Components) (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
UNITED STATES \| Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Actuarial Gain Loss Before Tax	$ 179	$ 112
Pension And Other Postretirement Defined Benefit Plans Employee Compensation and Benefits	(1)	(1)
Net periodic benefit cost (benefit) [Abstract]
Service cost — benefits earned during the period	20	24	$ 22
Interest cost on benefit obligation	28	25	21
Expected return on plan assets	(41)	(37)	(33)
Net actuarial loss	10	12	15
Prior service credit	(4)	(7)	(8)
Net periodic benefit cost (benefit)	13	17	17
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	0	0	0
Total periodic benefit cost (benefit)	13	17	17
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss [Abstract]
Net actuarial loss (gain)	77	(11)	4
Net actuarial loss	(10)	(12)	(15)
Prior service credit	4	7	8
Settlement	0	0	0
Curtailment	0	0	0
Foreign currency	0	0	0
Total recognized in other comprehensive (income) loss	71	(16)	(3)
Total recognized in net periodic benefit cost (benefit) and other comprehensive (income) loss	84	1	14
Change in fair value of plan assets: [Roll Forward]
Fair value — beginning of year	575	515
Actual return on plan assets	64	6
Employer contributions	0	85
Defined Benefit Plan, Plan Assets, Payment for Settlement	0	0
Defined Benefit Plan, Plan Assets, Benefits Paid	(24)	(31)
Defined Benefit Plan, Plan Assets, Other	0	0
Currency impact	0	0
Fair value — end of year	615	575	515
Change in benefit obligation: [Roll Forward]
Benefit obligation — beginning of year	650	675
Service cost	20	24
Interest cost	28	25	21
Settlements	0	0
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	0	0
Actuarial loss (gain)	101	43
Benefits paid	(25)	(31)
Defined Benefit Plan, Benefit Obligation, Other	0	0
Currency impact	0	0
Benefit obligation — end of year	774	650	675
Funded status of plan [Abstract]
Overfunded (Underfunded) status of PBO	(159)	(75)
Other assets	0	0
Liability, Defined Benefit Plan	(158)	(74)
UNITED STATES \| Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Actuarial Gain Loss Before Tax	29	28
Pension And Other Postretirement Defined Benefit Plans Employee Compensation and Benefits	0	0
Net periodic benefit cost (benefit) [Abstract]
Service cost — benefits earned during the period	1	1	1
Interest cost on benefit obligation	8	7	7
Expected return on plan assets	(13)	(13)	(11)
Net actuarial loss	9	16	21
Prior service credit	(14)	(14)	(15)
Net periodic benefit cost (benefit)	(9)	(3)	3
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	0	0	0
Total periodic benefit cost (benefit)	(9)	(3)	3
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss [Abstract]
Net actuarial loss (gain)	11	(1)	(16)
Net actuarial loss	(9)	(16)	(21)
Prior service credit	14	14	15
Settlement	0	0	0
Curtailment	0	0	0
Foreign currency	0	0	0
Total recognized in other comprehensive (income) loss	16	(3)	(22)
Total recognized in net periodic benefit cost (benefit) and other comprehensive (income) loss	7	(6)	(19)
Change in fair value of plan assets: [Roll Forward]
Fair value — beginning of year	172	182
Actual return on plan assets	18	3
Employer contributions	0	0
Defined Benefit Plan, Plan Assets, Payment for Settlement	0	0
Defined Benefit Plan, Plan Assets, Benefits Paid	(14)	(13)
Defined Benefit Plan, Plan Assets, Other	0	0
Currency impact	0	0
Fair value — end of year	176	172	182
Change in benefit obligation: [Roll Forward]
Benefit obligation — beginning of year	190	207
Service cost	1	1
Interest cost	8	7	7
Settlements	0	0
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	0	0
Actuarial loss (gain)	17	12
Benefits paid	(14)	(13)
Defined Benefit Plan, Benefit Obligation, Other	0	0
Currency impact	0	0
Benefit obligation — end of year	202	190	207
Funded status of plan [Abstract]
Overfunded (Underfunded) status of PBO	(26)	(18)
Other assets	0	0
Liability, Defined Benefit Plan	(26)	(18)
Foreign Plan [Member] \| Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Actuarial Gain Loss Before Tax	444	396
Pension And Other Postretirement Defined Benefit Plans Employee Compensation and Benefits	0	0
Net periodic benefit cost (benefit) [Abstract]
Service cost — benefits earned during the period	14	14	18
Interest cost on benefit obligation	23	23	23
Expected return on plan assets	(77)	(85)	(74)
Net actuarial loss	27	25	33
Prior service credit	(1)	(1)	(1)
Net periodic benefit cost (benefit)	(14)	(24)	(1)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	2	1	69
Total periodic benefit cost (benefit)	(12)	(23)	(70)
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss [Abstract]
Net actuarial loss (gain)	78	41	(145)
Net actuarial loss	(27)	(25)	(33)
Prior service credit	1	1	1
Settlement	(2)	(1)	24
Curtailment	0	0	(1)
Foreign currency	(1)	(5)	1
Total recognized in other comprehensive (income) loss	49	11	(199)
Total recognized in net periodic benefit cost (benefit) and other comprehensive (income) loss	37	(12)	(269)
Change in fair value of plan assets: [Roll Forward]
Fair value — beginning of year	1,392	1,440
Actual return on plan assets	167	2
Employer contributions	26	33
Defined Benefit Plan, Plan Assets, Payment for Settlement	(25)	(6)
Defined Benefit Plan, Plan Assets, Benefits Paid	(43)	(42)
Defined Benefit Plan, Plan Assets, Other	(4)	0
Currency impact	25	(35)
Fair value — end of year	1,538	1,392	1,440
Change in benefit obligation: [Roll Forward]
Benefit obligation — beginning of year	1,249	1,338
Service cost	14	14
Interest cost	23	23	23
Settlements	25	6
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	0	0
Actuarial loss (gain)	169	(43)
Benefits paid	(43)	(42)
Defined Benefit Plan, Benefit Obligation, Other	(8)	0
Currency impact	14	(35)
Benefit obligation — end of year	1,393	1,249	$ 1,338
Funded status of plan [Abstract]
Overfunded (Underfunded) status of PBO	145	143
Other assets	297	257
Liability, Defined Benefit Plan	$ (152)	$ (114)

Actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit for service obligations attributed to employee during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

No definition available.