Defined Benefit Plan, Plan Assets, Effect of Decrease in Discount Rate, Amount

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- Definition

Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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- Definition

Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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- Definition

Amount of cost for defined contribution plan.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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Percentage employer matches of the employee's percentage contribution matched.

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Retirement and Post-Retirement Benefit Plans - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Defined Contribution Plan Disclosure [Line Items]
Total defined contribution expense	$ 170	$ 160	$ 181
Effect of decrease in discount rate	600
U.S. \| U.S. non-qualified plan participants
Defined Contribution Plan Disclosure [Line Items]
Expected contribution to defined benefit plans in fiscal 2021	2
Defined Benefit Plans
Defined Contribution Plan Disclosure [Line Items]
Benefit obligation	14,872	14,845	14,225
Fair value of plan assets	15,354	14,127	13,434
Employer contributions	167	167
Defined Benefit Plans \| Non-U.S. Plans
Defined Contribution Plan Disclosure [Line Items]
Fair value of plan assets	$ 15,354	14,127
Target Allocation	100.00%
Employer contributions	$ 167
Expected contribution to defined benefit plans in fiscal 2021	199
Defined Benefit Plans \| Non-U.S. Plans \| Level 1
Defined Contribution Plan Disclosure [Line Items]
Fair value of plan assets	1,575	1,420
Defined Benefit Plans \| Non-U.S. Plans \| Level 2
Defined Contribution Plan Disclosure [Line Items]
Fair value of plan assets	8,479	7,685
Post-Retirement Benefit Plans
Defined Contribution Plan Disclosure [Line Items]
Benefit obligation	161	167	179
Fair value of plan assets	60	57	$ 54
Employer contributions	5	5
Expected contribution to defined benefit plans in fiscal 2021	7
Registered Investment Companies \| Post-Retirement Benefit Plans
Defined Contribution Plan Disclosure [Line Items]
Fair value of plan assets	60	57
Registered Investment Companies \| Post-Retirement Benefit Plans \| Level 1
Defined Contribution Plan Disclosure [Line Items]
Fair value of plan assets	49	46
Registered Investment Companies \| Post-Retirement Benefit Plans \| Level 2
Defined Contribution Plan Disclosure [Line Items]
Fair value of plan assets	11	11
Cash and cash equivalents \| Defined Benefit Plans \| Non-U.S. Plans
Defined Contribution Plan Disclosure [Line Items]
Fair value of plan assets	$ 493	417
Target Allocation	1.30%
Cash and cash equivalents \| Defined Benefit Plans \| Non-U.S. Plans \| Level 1
Defined Contribution Plan Disclosure [Line Items]
Fair value of plan assets	$ 254	241
Cash and cash equivalents \| Defined Benefit Plans \| Non-U.S. Plans \| Level 2
Defined Contribution Plan Disclosure [Line Items]
Fair value of plan assets	$ 239	$ 176
Cash and cash equivalents \| Post-Retirement Benefit Plans
Defined Contribution Plan Disclosure [Line Items]
Target Allocation	81.00%
Multi-Asset Credit Investments \| Post-Retirement Benefit Plans
Defined Contribution Plan Disclosure [Line Items]
Target Allocation	19.00%
HPE 401(k) Plan
Defined Contribution Plan Disclosure [Line Items]
Percent of equal 401(k) match to employees effective during the period	100.00%
Percentage of maximum matching contribution	4.00%