RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Components) (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
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	$ 225	$ 179
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	23	20	$ 24
Interest cost on benefit obligation	24	28	25
Expected return on plan assets	(44)	(41)	(37)
Net actuarial loss	18	10	12
Prior service credit	0	(4)	(7)
Net periodic benefit cost (benefit)	21	13	17
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	0	0	0
Total periodic benefit cost (benefit)	21	13	17
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss [Abstract]
Net actuarial loss (gain)	64	77	(11)
Net actuarial loss	(18)	(10)	(12)
Prior service credit	0	4	7
Curtailments and settlements	0	0	0
Foreign currency	0	0	0
Total recognized in other comprehensive (income) loss	46	71	(16)
Total recognized in the periodic benefit cost (benefit) and other comprehensive (income) loss	67	84	1
Change in fair value of plan assets: [Roll Forward]
Fair value — beginning of year	615		575
Actual return on plan assets	41	64
Employer contributions	100	0
Defined Benefit Plan, Plan Assets, Payment for Settlement	0	0
Defined Benefit Plan, Plan Assets, Benefits Paid	(34)	(24)
Defined Benefit Plan, Plan Assets, Other	0	0
Currency impact	0	0
Fair value — end of year	722	615
Change in benefit obligation: [Roll Forward]
Benefit obligation — beginning of year	774		650
Service cost	23	20
Interest cost	24	28	25
Settlements	0	0
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	0	0
Actuarial loss (gain)	62	(101)
Benefits paid	(35)	(25)
Defined Benefit Plan, Benefit Obligation, Other	0	0
Currency impact	0	0
Benefit obligation — end of year	848	774
Funded status of plan [Abstract]
Overfunded (Underfunded) status of PBO	(126)	(159)
Other assets	0	0
Liability, Defined Benefit Plan	(125)	(158)
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	28	29
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	6	8	7
Expected return on plan assets	(13)	(13)	(13)
Net actuarial loss	10	9	16
Prior service credit	(11)	(14)	(14)
Net periodic benefit cost (benefit)	(7)	(9)	(3)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	0	0	0
Total periodic benefit cost (benefit)	(7)	(9)	(3)
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss [Abstract]
Net actuarial loss (gain)	9	11	(1)
Net actuarial loss	(10)	(9)	(16)
Prior service credit	11	14	14
Curtailments and settlements	0	0	0
Foreign currency	0	0	0
Total recognized in other comprehensive (income) loss	10	16	(3)
Total recognized in the periodic benefit cost (benefit) and other comprehensive (income) loss	3	7	(6)
Change in fair value of plan assets: [Roll Forward]
Fair value — beginning of year	176		172
Actual return on plan assets	12	18
Employer contributions	0	0
Defined Benefit Plan, Plan Assets, Payment for Settlement	0	0
Defined Benefit Plan, Plan Assets, Benefits Paid	(13)	(14)
Defined Benefit Plan, Plan Assets, Other	0	0
Currency impact	0	0
Fair value — end of year	175	176
Change in benefit obligation: [Roll Forward]
Benefit obligation — beginning of year	202		190
Service cost	1	1
Interest cost	6	8	7
Settlements	0	0
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	0	0
Actuarial loss (gain)	7	(17)
Benefits paid	(13)	(14)
Defined Benefit Plan, Benefit Obligation, Other	0	0
Currency impact	0	0
Benefit obligation — end of year	203	202
Funded status of plan [Abstract]
Overfunded (Underfunded) status of PBO	(28)	(26)
Other assets	0	0
Liability, Defined Benefit Plan	(28)	(26)
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	487	444
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	15	14	14
Interest cost on benefit obligation	16	23	23
Expected return on plan assets	(84)	(77)	(85)
Net actuarial loss	34	27	25
Prior service credit	0	(1)	(1)
Net periodic benefit cost (benefit)	(19)	(14)	(24)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	4	2	1
Total periodic benefit cost (benefit)	(15)	(12)	(23)
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss [Abstract]
Net actuarial loss (gain)	81	78	41
Net actuarial loss	(34)	(27)	(25)
Prior service credit	0	1	1
Curtailments and settlements	(4)	(2)	(1)
Foreign currency	1	(1)	(5)
Total recognized in other comprehensive (income) loss	44	49	11
Total recognized in the periodic benefit cost (benefit) and other comprehensive (income) loss	29	37	(12)
Change in fair value of plan assets: [Roll Forward]
Fair value — beginning of year	1,538		1,392
Actual return on plan assets	21	167
Employer contributions	10	26
Defined Benefit Plan, Plan Assets, Payment for Settlement	(14)	(25)
Defined Benefit Plan, Plan Assets, Benefits Paid	(36)	(43)
Defined Benefit Plan, Plan Assets, Other	0	(4)
Currency impact	26	25
Fair value — end of year	1,545	1,538
Change in benefit obligation: [Roll Forward]
Benefit obligation — beginning of year	1,393		1,249
Service cost	15	14
Interest cost	16	23	$ 23
Settlements	14	25
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	(1)	0
Actuarial loss (gain)	18	169
Benefits paid	(36)	(43)
Defined Benefit Plan, Benefit Obligation, Other	0	(8)
Currency impact	30	14
Benefit obligation — end of year	1,421	1,393
Funded status of plan [Abstract]
Overfunded (Underfunded) status of PBO	124	145
Other assets	311	297
Liability, Defined Benefit Plan	$ (187)	$ (152)

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.