Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
Nov. 29, 2019	Nov. 30, 2018	Dec. 01, 2017
Retirement Benefits [Abstract]
Percentage of eligible employee contribution to retirement savings plan	65.00%
Percentage of employer matching contribution to retirement savings plan	50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent	6.00%
Employer's conribution to retirement savings plan	$ 51.7	$ 41.0	$ 34.3
Board of Directors and Certain Executives [Member]
Deferred Compensation Plan for certain executives and Board of Director Members
Percentage of contribution made by participants of base salary to deferred compensation plan	75.00%
Percentage of contribution made by participants of other specified compensation to deferred compensation plan	100.00%
Minimum period after end of plan year participants can elect to begin benefit payments	3 years
Payment period for annual installments election of benefit payments	over five, ten or fifteen years
Deferred compensation plan assets	$ 93.8	69.0
Deferred compensation plan liabilities	$ 108.8	$ 84.0

Deferred Compensation Arrangement, Participant Election of Benefit Payments, Annual Installments Option Payment Period

No definition available.

Name:	adbe_DeferredCompensationArrangementParticipantElectionOfBenefitPaymentsAnnualInstallmentsOptionPaymentPeriod
Namespace Prefix:	adbe_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	duration

- Definition

Deferred Compensation Arrangement, Participant Election of Benefit Payments Start Date, Minimum Period after End of Plan Year

+ References

No definition available.

+ Details

Name:	adbe_DeferredCompensationArrangementParticipantElectionOfBenefitPaymentsStartDateMinimumPeriodAfterEndOfPlanYear
Namespace Prefix:	adbe_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of contribution made by participants of base salary to deferred compensation plan.

+ References

No definition available.

+ Details

Name:	adbe_PercentageOfContributionMadeByParticipantsOfBaseSalaryToDeferredCompensationPlan
Namespace Prefix:	adbe_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of contribution made by participants of other specified compensation to deferred compensation plan.

+ References

No definition available.

+ Details

Name:	adbe_PercentageOfContributionMadeByParticipantsOfOtherSpecifiedCompensationToDeferredCompensationPlan
Namespace Prefix:	adbe_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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

- 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.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems
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

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

+ Details

Name:	us-gaap_DefinedContributionPlanCostRecognized
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:	num: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:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_TitleOfIndividualAxis=adbe_BoardOfDirectorsAndCertainExecutivesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: