PENSION AND OTHER POSTRETIREMENT BENEFITS (Details 7) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011
Actual pension asset returns
Extended period of time used to determine if fundamental changes in capital markets affect plan asset return assumptions, low end of range	10 years
Extended period of time used to determine if fundamental changes in capital markets affect plan asset return assumptions, high end of range	20 years
Average annual return of company's U.S. pension fund over past 10 years (as a percent)	8.80%
Average annual return of company's U.S. pension fund over past 20 years (as a percent)	9.40%
Defined contribution plans related to employee investment and savings primarily in the U.S.
Defined contribution plans employer contributions and costs (primarily in the U.S.)	$ 178	$ 155	$ 108
Level 3
Reconciliation of level 3 fair value measurements
Beginning of year balance	1,969	1,765
Realized gain	58	18
Change in unrealized gain (loss)	220	74
Purchases, sales and settlements - net	(185)	112
End of year balance	2,062	1,969
Level 3 | Real Estate
Reconciliation of level 3 fair value measurements
Beginning of year balance	436	437
Change in unrealized gain (loss)	68	(4)
Purchases, sales and settlements - net	(61)	3
End of year balance	443	436
Level 3 | Private Equity/Venture Capital
Reconciliation of level 3 fair value measurements
Beginning of year balance	1,373	1,178
Realized gain	51	18
Change in unrealized gain (loss)	142	65
Purchases, sales and settlements - net	(102)	112
End of year balance	1,464	1,373
Level 3 | Hedge Funds
Reconciliation of level 3 fair value measurements
Beginning of year balance	160	150
Realized gain	7
Change in unrealized gain (loss)	10	13
Purchases, sales and settlements - net	(22)	(3)
End of year balance	155	160
Pensions
Reconciliation of level 3 fair value measurements
End of year balance	11,008	10,017	9,552
Pensions | Real Estate
Reconciliation of level 3 fair value measurements
Beginning of year balance	537
End of year balance	550
Target asset allocations, pension and health care plan assets
Target allocation percentage	5.00%
Pensions | Private Equity/Venture Capital
Reconciliation of level 3 fair value measurements
End of year balance	1,416	1,319
Pensions | Hedge Funds
Reconciliation of level 3 fair value measurements
End of year balance	529	578
Pensions | Equity Securities
Target asset allocations, pension and health care plan assets
Target allocation percentage	47.00%
Pensions | Debt Securities
Target asset allocations, pension and health care plan assets
Target allocation percentage	24.00%
Pensions | Other Investments
Reconciliation of level 3 fair value measurements
Beginning of year balance	508
End of year balance	389
Target asset allocations, pension and health care plan assets
Target allocation percentage	24.00%
Pensions | Level 3
Reconciliation of level 3 fair value measurements
End of year balance	1,994	1,892
Pensions | Level 3 | Real Estate
Reconciliation of level 3 fair value measurements
End of year balance	428	419
Pensions | Level 3 | Private Equity/Venture Capital
Reconciliation of level 3 fair value measurements
End of year balance	1,416	1,319
Pensions | Level 3 | Hedge Funds
Reconciliation of level 3 fair value measurements
End of year balance	150	154
Health Care and Life Insurance
Reconciliation of level 3 fair value measurements
End of year balance	1,157	1,287	1,459
Health Care and Life Insurance | Real Estate
Reconciliation of level 3 fair value measurements
Beginning of year balance	53
End of year balance	52
Target asset allocations, pension and health care plan assets
Target allocation percentage	3.00%
Health Care and Life Insurance | Private Equity/Venture Capital
Reconciliation of level 3 fair value measurements
End of year balance	48	54
Health Care and Life Insurance | Hedge Funds
Reconciliation of level 3 fair value measurements
End of year balance	71	85
Health Care and Life Insurance | Equity Securities
Target asset allocations, pension and health care plan assets
Target allocation percentage	53.00%
Health Care and Life Insurance | Debt Securities
Target asset allocations, pension and health care plan assets
Target allocation percentage	29.00%
Health Care and Life Insurance | Other Investments
Reconciliation of level 3 fair value measurements
Beginning of year balance	21
End of year balance	13
Target asset allocations, pension and health care plan assets
Target allocation percentage	15.00%
Health Care and Life Insurance | Level 3
Reconciliation of level 3 fair value measurements
End of year balance	68	77
Health Care and Life Insurance | Level 3 | Minimum
Reconciliation of level 3 fair value measurements
Percentage of Level 3 assets related to health care assets	3.00%	3.00%	3.00%
Health Care and Life Insurance | Level 3 | Maximum
Reconciliation of level 3 fair value measurements
Percentage of Level 3 assets related to health care assets	5.00%	5.00%	5.00%
Health Care and Life Insurance | Level 3 | Real Estate
Reconciliation of level 3 fair value measurements
End of year balance	15	17
Health Care and Life Insurance | Level 3 | Private Equity/Venture Capital
Reconciliation of level 3 fair value measurements
End of year balance	48	54
Health Care and Life Insurance | Level 3 | Hedge Funds
Reconciliation of level 3 fair value measurements
End of year balance	$ 5	$ 6