Multiemployer Plan, Pension, Percentage Of Total Contributions Made During The Year

No definition available.

Name:	czr_MultiemployerPlanPensionPercentageOfTotalContributionsMadeDuringTheYear
Namespace Prefix:	czr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cost for employer contribution to multiemployer plan. Multiemployer plan includes, but is not limited to, pension plan determined to be individually significant and insignificant and other postretirement benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 35
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=29639808&loc=d3e29008-114946

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947

+ Details

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

- Definition

Amount of cost for employer contribution to multiemployer pension plan determined to be individually insignificant.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

+ Details

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

- Definition

Indicates certified zone status of multiemployer pension plan determined to be individually significant. Acceptable values are "Green", "Yellow", "Orange", "Red", "Other", and "NA".

+ References

+ Details

Name:	us-gaap_MultiemployerPlanPensionSignificantCertifiedZoneStatusFixedList
Namespace Prefix:	us-gaap_
Data Type:	us-types:zoneStatusItemType
Balance Type:	na
Period Type:	duration

- Definition

Expiration date of collective-bargaining arrangement (CBA) requiring contribution to multiemployer pension plan determined to be individually significant, in YYYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_MultiemployerPlanPensionSignificantCollectiveBargainingArrangementExpirationDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cost for employer contribution to multiemployer pension plan determined to be individually significant.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948

+ Details

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

- Definition

Employer Identification Number (EIN) or Tax Identification Number (TIN) assigned by Internal Revenue Service (IRS) for multiemployer pension plan determined to be individually significant, in nine-digit numeric format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948

+ Details

Name:	us-gaap_MultiemployerPlanPensionSignificantEmployerIdentificationNumber
Namespace Prefix:	us-gaap_
Data Type:	us-types:nineDigitItemType
Balance Type:	na
Period Type:	duration

- Definition

Indicates whether funding improvement plan or rehabilitation plan was implemented or pending for multiemployer pension plan, determined to be individually significant. Acceptable values are "No", "Pending", "Implemented", "Other", and "NA".

+ References

+ Details

Name:	us-gaap_MultiemployerPlanPensionSignificantFundingImprovementOrRehabilitationPlanImplementationStatusFixedList
Namespace Prefix:	us-gaap_
Data Type:	us-types:fundingImprovementAndRehabilitationPlanItemType
Balance Type:	na
Period Type:	duration

- Definition

Plan number for multiemployer pension plan determined to be individually significant, in three-digit numeric format.

+ References

+ Details

Name:	us-gaap_MultiemployerPlanPensionSignificantPlanNumber
Namespace Prefix:	us-gaap_
Data Type:	us-types:threeDigitItemType
Balance Type:	na
Period Type:	duration

- Definition

Indicates whether employer paid surcharge to multiemployer pension plan determined to be individually significant. Acceptable values are "No", "Yes" and "NA".

+ References

+ Details

Name:	us-gaap_MultiemployerPlanPensionSignificantSurchargeFixedList
Namespace Prefix:	us-gaap_
Data Type:	us-types:surchargeItemType
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_MultiemployerPlansLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_RetirementPlanNameAxis=czr_SouthernNevadaCulinaryAndBartendersPensionPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=czr_FormerCaesarsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanNameAxis=czr_LegacyPlanOfTheUNITEHERERetirementFundMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanNameAxis=czr_CentralPensionFundOfTheIUOEParticipatingEmployersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanNameAxis=czr_WesternConferenceOfTeamstersPensionPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanNameAxis=czr_Local68EngineersUnionPensionPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanNameAxis=czr_PaintersIUPATMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Employee Benefit Plans - Multi-employer Pension Plan Participation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Multiemployer Plans [Line Items]
Other Funds	$ 1	$ 5
Total Contributions	$ 41	14
Southern Nevada Culinary and Bartenders Pension Plan
Multiemployer Plans [Line Items]
EIN	886016617
Pension Plan Number	001
Pension Protection Act Zone Status	Green
FIP/RP Status	No
Contributions	$ 18	$ 5
Surcharge Imposed	No
Expiration Date of Collective Bargaining Agreement	May 31, 2023
Percentage of total contributions made during the year		5.00%
Southern Nevada Culinary and Bartenders Pension Plan \| Former Caesars
Multiemployer Plans [Line Items]
Percentage of total contributions made during the year			5.00%
Legacy Plan of the UNITE HERE Retirement Fund
Multiemployer Plans [Line Items]
EIN	820994119
Pension Plan Number	001
Pension Protection Act Zone Status	Red
FIP/RP Status	Implemented
Contributions	$ 9	$ 4
Surcharge Imposed	No
Expiration Date of Collective Bargaining Agreement	May 31, 2023
Percentage of total contributions made during the year		5.00%
Legacy Plan of the UNITE HERE Retirement Fund \| Former Caesars
Multiemployer Plans [Line Items]
Percentage of total contributions made during the year			5.00%
Central Pension Fund of the IUOE & Participating Employers
Multiemployer Plans [Line Items]
EIN	366052390
Pension Plan Number	001
Pension Protection Act Zone Status	Green
FIP/RP Status	No
Contributions	$ 6	$ 0
Expiration Date of Collective Bargaining Agreement	Mar. 31, 2021
Western Conference of Teamsters Pension Plan
Multiemployer Plans [Line Items]
EIN	916145047
Pension Plan Number	001
Pension Protection Act Zone Status	Green
FIP/RP Status	No
Contributions	$ 5	0
Expiration Date of Collective Bargaining Agreement	Aug. 31, 2024
Local 68 Engineers Union Pension Plan
Multiemployer Plans [Line Items]
EIN	510176618
Pension Plan Number	001
Pension Protection Act Zone Status	Yellow
FIP/RP Status	Implemented
Contributions	$ 1	$ 0
Surcharge Imposed	No
Expiration Date of Collective Bargaining Agreement	Apr. 30, 2022
Percentage of total contributions made during the year		5.00%
Local 68 Engineers Union Pension Plan \| Former Caesars
Multiemployer Plans [Line Items]
Percentage of total contributions made during the year			5.00%
Painters IUPAT
Multiemployer Plans [Line Items]
EIN	526073909
Pension Plan Number	001
Pension Protection Act Zone Status	Yellow
FIP/RP Status	Implemented
Contributions	$ 1	$ 0
Surcharge Imposed	No
Expiration Date of Collective Bargaining Agreement	Jun. 30, 2026