Deferred Compensation, Number of Unfunded Plans

No definition available.

Name:	amat_DeferredCompensationNumberofUnfundedPlans
Namespace Prefix:	amat_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Benefit Pension Plans of Foreign Subsidiaries and Other Post-Retirement Benefits [Abstract]

+ References

No definition available.

+ Details

Name:	amat_DefinedBenefitPensionPlansofForeignSubsidiariesandOtherPostRetirementBenefitsAbstract
Namespace Prefix:	amat_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined benefit plan matching contribution vesting percentage.

+ References

No definition available.

+ Details

Name:	amat_DefinedBenefitPlanMatchingContributionVestingPercentage
Namespace Prefix:	amat_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined bonus plan cost recognized.

+ References

No definition available.

+ Details

Name:	amat_DefinedBonusPlanCostRecognized
Namespace Prefix:	amat_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay, Second Tier

+ References

No definition available.

+ Details

Name:	amat_DefinedContributionPlanEmployerMatchingContributionPercentofEmployeesGrossPaySecondTier
Namespace Prefix:	amat_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Contribution Plan, Employer Matching Contribution, Percent of Match, Second Tier

+ References

No definition available.

+ Details

Name:	amat_DefinedContributionPlanEmployerMatchingContributionPercentofMatchSecondTier
Namespace Prefix:	amat_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Employee Bonus Plans [Abstract]

+ References

No definition available.

+ Details

Name:	amat_EmployeeBonusPlansAbstract
Namespace Prefix:	amat_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Employee Savings and Retirement Plan [Abstract]

+ References

No definition available.

+ Details

Name:	amat_EmployeeSavingsandRetirementPlanAbstract
Namespace Prefix:	amat_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_DeferredCompensationArrangementsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable beyond one year (or the operating cycle, if longer).

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480482/715-20-55-18

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

+ Details

Name:	us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis=us-gaap_DeferredCompensationExcludingShareBasedPaymentsAndRetirementBenefitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=amat_SavingsandRetirementPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Employee Benefit Plans (Narrative) (Details) $ in Millions	12 Months Ended
Employee Benefit Plans (Narrative) (Details) $ in Millions	Oct. 29, 2023 USD ($) Plan	Oct. 30, 2022 USD ($)	Oct. 31, 2021 USD ($)
Employee Bonus Plans
Charges to expense under Employee bonus plans	$ 702	$ 623	$ 631
Defined Benefit Pension Plans of Foreign Subsidiaries and Other Post-Retirement Benefits
Company contributions expected for next fiscal year	$ 8
Executive Deferred Compensation Plans
Number of unfunded plans \| Plan	2
Executive Deferred Compensation Plans
Executive Deferred Compensation Plans
Amounts payable under EDCP	$ 245	200
Savings and Retirement Plan
Employee Savings and Retirement Plan
Employer matching contribution, percent of match	100.00%
Employer matching contribution, percent of employees' gross pay	3.00%
Employer matching contribution, percent of match, second tier	50.00%
Percentage vested in matching contribution account	100.00%
401(K) Matching contributions	$ 85	$ 67	$ 61
Savings and Retirement Plan \| Minimum
Employee Savings and Retirement Plan
Employer matching contribution, percent of employees' gross pay, second tier	4.00%
Savings and Retirement Plan \| Maximum
Employee Savings and Retirement Plan
Employer matching contribution, percent of employees' gross pay, second tier	6.00%