Fair Value (Details) - USD ($) $ in Millions	Jul. 31, 2023	Oct. 31, 2022
Assets:
Cash Equivalents:	$ 822	$ 2,193
Derivative Instruments:	254	1,090
Liabilities:
Derivative Instruments:	404	374
Fair value, short- and long-term debt	9,100	9,600
Carrying value, short- and long-term debt	9,700	11,000
Fair Value Measured on a Recurring Basis
Assets:
Total assets	1,155	3,346
Liabilities:
Total liabilities	404	374
Fair Value Measured on a Recurring Basis | Corporate debt
Assets:
Cash Equivalents:	460	904
Fair Value Measured on a Recurring Basis | Government debt
Assets:
Cash Equivalents:	362	1,289
Fair Value Measured on a Recurring Basis | Financial institution instruments
Assets:
Available-for-Sale Investments:	3	5
Fair Value Measured on a Recurring Basis | Marketable securities and mutual funds
Assets:
Available-for-Sale Investments:	76	58
Fair Value Measured on a Recurring Basis | Interest rate contracts
Liabilities:
Derivative Instruments:	63	78
Fair Value Measured on a Recurring Basis | Foreign currency contracts
Assets:
Derivative Instruments:	248	1,088
Liabilities:
Derivative Instruments:	341	295
Fair Value Measured on a Recurring Basis | Other derivatives
Assets:
Derivative Instruments:	6	2
Liabilities:
Derivative Instruments:	0	1
Fair Value Measured on a Recurring Basis | Level 1
Assets:
Total assets	390	1,306
Liabilities:
Total liabilities	0	0
Fair Value Measured on a Recurring Basis | Level 1 | Corporate debt
Assets:
Cash Equivalents:	0	0
Fair Value Measured on a Recurring Basis | Level 1 | Government debt
Assets:
Cash Equivalents:	362	1,289
Fair Value Measured on a Recurring Basis | Level 1 | Financial institution instruments
Assets:
Available-for-Sale Investments:	0	0
Fair Value Measured on a Recurring Basis | Level 1 | Marketable securities and mutual funds
Assets:
Available-for-Sale Investments:	28	17
Fair Value Measured on a Recurring Basis | Level 1 | Interest rate contracts
Liabilities:
Derivative Instruments:	0	0
Fair Value Measured on a Recurring Basis | Level 1 | Foreign currency contracts
Assets:
Derivative Instruments:	0	0
Liabilities:
Derivative Instruments:	0	0
Fair Value Measured on a Recurring Basis | Level 1 | Other derivatives
Assets:
Derivative Instruments:	0	0
Liabilities:
Derivative Instruments:	0	0
Fair Value Measured on a Recurring Basis | Level 2
Assets:
Total assets	765	2,040
Liabilities:
Total liabilities	404	374
Fair Value Measured on a Recurring Basis | Level 2 | Corporate debt
Assets:
Cash Equivalents:	460	904
Fair Value Measured on a Recurring Basis | Level 2 | Government debt
Assets:
Cash Equivalents:	0	0
Fair Value Measured on a Recurring Basis | Level 2 | Financial institution instruments
Assets:
Available-for-Sale Investments:	3	5
Fair Value Measured on a Recurring Basis | Level 2 | Marketable securities and mutual funds
Assets:
Available-for-Sale Investments:	48	41
Fair Value Measured on a Recurring Basis | Level 2 | Interest rate contracts
Liabilities:
Derivative Instruments:	63	78
Fair Value Measured on a Recurring Basis | Level 2 | Foreign currency contracts
Assets:
Derivative Instruments:	248	1,088
Liabilities:
Derivative Instruments:	341	295
Fair Value Measured on a Recurring Basis | Level 2 | Other derivatives
Assets:
Derivative Instruments:	6	2
Liabilities:
Derivative Instruments:	0	1
Fair Value Measured on a Recurring Basis | Level 3
Assets:
Total assets	0	0
Liabilities:
Total liabilities	0	0
Fair Value Measured on a Recurring Basis | Level 3 | Corporate debt
Assets:
Cash Equivalents:	0	0
Fair Value Measured on a Recurring Basis | Level 3 | Government debt
Assets:
Cash Equivalents:	0	0
Fair Value Measured on a Recurring Basis | Level 3 | Financial institution instruments
Assets:
Available-for-Sale Investments:	0	0
Fair Value Measured on a Recurring Basis | Level 3 | Marketable securities and mutual funds
Assets:
Available-for-Sale Investments:	0	0
Fair Value Measured on a Recurring Basis | Level 3 | Interest rate contracts
Liabilities:
Derivative Instruments:	0	0
Fair Value Measured on a Recurring Basis | Level 3 | Foreign currency contracts
Assets:
Derivative Instruments:	0	0
Liabilities:
Derivative Instruments:	0	0
Fair Value Measured on a Recurring Basis | Level 3 | Other derivatives
Assets:
Derivative Instruments:	0	0
Liabilities:
Derivative Instruments:	$ 0	$ 0