OTHER COMPREHENSIVE INCOME ITEMS - Amounts Recorded in and Reclassifications out of (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Other Comprehensive Income (Loss), Before Tax
Interest expense	$ (763.7)	$ (680.0)	$ (664.0)
Other operating expense	(1,254.6)	(961.1)	(1,093.3)
Other income	745.5	706.5	824.2
Total other comprehensive income (loss), before tax	(1,388.0)	(952.0)	(1,481.0)
Other Comprehensive Income (Loss), Tax (Expense) Credit
Total other comprehensive income (loss), tax (expense) credit	491.0	6.0	391.0
Other Comprehensive Income (Loss), After Tax
Other Comprehensive Income (Loss), Net of Income Taxes	(896.6)	(946.8)	(1,090.2)
Cumulative Translation Adjustment
Other Comprehensive Income (Loss), Before Tax
Other comprehensive income (loss) before reclassification, before tax			(427.0)
Total other comprehensive income (loss), before tax	8.0	(938.0)	(418.0)
Other Comprehensive Income (Loss), Tax (Expense) Credit
Other comprehensive income (loss) before reclassification, tax (expense) credit			2.0
Total other comprehensive income (loss), tax (expense) credit	1.0	3.0	2.0
Other Comprehensive Income (Loss), After Tax
Other comprehensive income (loss) before reclassification, after tax			(425.0)
Other Comprehensive Income (Loss), Net of Income Taxes	9.0	(935.0)	(416.0)
Cumulative Translation Adjustment | Reclassification out of Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss), Before Tax
Other operating expense			9.0
Other Comprehensive Income (Loss), After Tax
Reclassification from accumulated other comprehensive income, after tax			9.0
Unrealized Gain (Loss) on Derivatives
Other Comprehensive Income (Loss), Before Tax
Other comprehensive income (loss) before reclassification, before tax	(2.0)	(12.0)	(14.0)
Total other comprehensive income (loss), before tax	4.0	(4.0)	5.0
Other Comprehensive Income (Loss), Tax (Expense) Credit
Other comprehensive income (loss) before reclassification, tax (expense) credit	1.0	4.0	5.0
Total other comprehensive income (loss), tax (expense) credit	(1.0)	2.0	(2.0)
Other Comprehensive Income (Loss), After Tax
Other comprehensive income (loss) before reclassification, after tax	(1.0)	(8.0)	(9.0)
Other Comprehensive Income (Loss), Net of Income Taxes	3.0	(2.0)	3.0
Unrealized Gain (Loss) on Derivatives | Interest Rate Contracts | Reclassification out of Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss), Before Tax
Interest expense	7.0	12.0	13.0
Other Comprehensive Income (Loss), Tax (Expense) Credit
Reclassification from accumulated other comprehensive income, tax (expense) credit	(2.0)	(4.0)	(5.0)
Other Comprehensive Income (Loss), After Tax
Reclassification from accumulated other comprehensive income, after tax	5.0	8.0	8.0
Unrealized Gain (Loss) on Derivatives | Foreign Exchange Contracts | Reclassification out of Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss), Before Tax
Other operating expense	(1.0)	(4.0)	6.0
Other Comprehensive Income (Loss), Tax (Expense) Credit
Reclassification from accumulated other comprehensive income, tax (expense) credit		2.0	(2.0)
Other Comprehensive Income (Loss), After Tax
Reclassification from accumulated other comprehensive income, after tax	(1.0)	(2.0)	4.0
Unrealized Gain (Loss) on Investments
Other Comprehensive Income (Loss), Before Tax
Other comprehensive income (loss) before reclassification, before tax	2.0	12.0	10.0
Total other comprehensive income (loss), before tax	(2.0)	(2.0)	10.0
Other Comprehensive Income (Loss), Tax (Expense) Credit
Other comprehensive income (loss) before reclassification, tax (expense) credit		(4.0)	(3.0)
Total other comprehensive income (loss), tax (expense) credit	1.0	1.0	(3.0)
Other Comprehensive Income (Loss), After Tax
Other comprehensive income (loss) before reclassification, after tax	2.0	8.0	7.0
Other Comprehensive Income (Loss), Net of Income Taxes	(1.0)	(1.0)	7.0
Unrealized Gain (Loss) on Investments | Reclassification out of Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss), Before Tax
Other income	(4.0)	(14.0)
Other Comprehensive Income (Loss), Tax (Expense) Credit
Reclassification from accumulated other comprehensive income, tax (expense) credit	1.0	5.0
Other Comprehensive Income (Loss), After Tax
Reclassification from accumulated other comprehensive income, after tax	(3.0)	(9.0)
Retirement Benefits Adjustment
Other Comprehensive Income (Loss), Before Tax
Total other comprehensive income (loss), before tax	(1,398.0)	(8.0)	(1,078.0)
Other Comprehensive Income (Loss), Tax (Expense) Credit
Total other comprehensive income (loss), tax (expense) credit	490.0		394.0
Other Comprehensive Income (Loss), After Tax
Other Comprehensive Income (Loss), Net of Income Taxes	(908.0)	(8.0)	(684.0)
Retirement Benefits Adjustment | Pensions
Other Comprehensive Income (Loss), Before Tax
Other comprehensive income (loss) before reclassification, before tax	(1,141.0)	(427.0)	(940.0)
Other Comprehensive Income (Loss), Tax (Expense) Credit
Other comprehensive income (loss) before reclassification, tax (expense) credit	397.0	151.0	343.0
Other Comprehensive Income (Loss), After Tax
Other comprehensive income (loss) before reclassification, after tax	(744.0)	(276.0)	(597.0)
Retirement Benefits Adjustment | Health Care and Life Insurance
Other Comprehensive Income (Loss), Before Tax
Other comprehensive income (loss) before reclassification, before tax	(493.0)	145.0	(378.0)
Other Comprehensive Income (Loss), Tax (Expense) Credit
Other comprehensive income (loss) before reclassification, tax (expense) credit	178.0	(52.0)	138.0
Other Comprehensive Income (Loss), After Tax
Other comprehensive income (loss) before reclassification, after tax	(315.0)	93.0	(240.0)
Actuarial (Gain) Loss | Reclassification out of Accumulated Other Comprehensive Income (Loss) | Pensions
Other Comprehensive Income (Loss), Before Tax
Reclassification from accumulated other comprehensive income, before tax	211.0	223.0	177.0
Other Comprehensive Income (Loss), Tax (Expense) Credit
Reclassification from accumulated other comprehensive income, tax (expense) credit	(77.0)	(81.0)	(64.0)
Other Comprehensive Income (Loss), After Tax
Reclassification from accumulated other comprehensive income, after tax	134.0	142.0	113.0
Actuarial (Gain) Loss | Reclassification out of Accumulated Other Comprehensive Income (Loss) | Health Care and Life Insurance
Other Comprehensive Income (Loss), Before Tax
Reclassification from accumulated other comprehensive income, before tax	73.0	91.0	33.0
Other Comprehensive Income (Loss), Tax (Expense) Credit
Reclassification from accumulated other comprehensive income, tax (expense) credit	(27.0)	(34.0)	(12.0)
Other Comprehensive Income (Loss), After Tax
Reclassification from accumulated other comprehensive income, after tax	46.0	57.0	21.0
Prior Service (Credit) Cost | Reclassification out of Accumulated Other Comprehensive Income (Loss) | Pensions
Other Comprehensive Income (Loss), Before Tax
Reclassification from accumulated other comprehensive income, before tax	16.0	25.0	25.0
Other Comprehensive Income (Loss), Tax (Expense) Credit
Reclassification from accumulated other comprehensive income, tax (expense) credit	(6.0)	(9.0)	(9.0)
Other Comprehensive Income (Loss), After Tax
Reclassification from accumulated other comprehensive income, after tax	10.0	16.0	16.0
Prior Service (Credit) Cost | Reclassification out of Accumulated Other Comprehensive Income (Loss) | Health Care and Life Insurance
Other Comprehensive Income (Loss), Before Tax
Reclassification from accumulated other comprehensive income, before tax	(78.0)	(77.0)	(3.0)
Other Comprehensive Income (Loss), Tax (Expense) Credit
Reclassification from accumulated other comprehensive income, tax (expense) credit	29.0	29.0	1.0
Other Comprehensive Income (Loss), After Tax
Reclassification from accumulated other comprehensive income, after tax	(49.0)	(48.0)	(2.0)
Settlements/Curtailments | Reclassification out of Accumulated Other Comprehensive Income (Loss) | Pensions
Other Comprehensive Income (Loss), Before Tax
Reclassification from accumulated other comprehensive income, before tax	14.0	11.0	9.0
Other Comprehensive Income (Loss), Tax (Expense) Credit
Reclassification from accumulated other comprehensive income, tax (expense) credit	(4.0)	(4.0)	(3.0)
Other Comprehensive Income (Loss), After Tax
Reclassification from accumulated other comprehensive income, after tax	$ 10.0	7.0	6.0
Settlements/Curtailments | Reclassification out of Accumulated Other Comprehensive Income (Loss) | Health Care and Life Insurance
Other Comprehensive Income (Loss), Before Tax
Reclassification from accumulated other comprehensive income, before tax		1.0	(1.0)
Other Comprehensive Income (Loss), After Tax
Reclassification from accumulated other comprehensive income, after tax		$ 1.0	$ (1.0)