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Revenue Recognition - Summary of Activity Related to Contract and Contract Related Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Balance at January 1	$ 251
Balance at December 31	614	$ 251
Outstanding Chip Liability
Disaggregation of Revenue [Line Items]
Balance at January 1	34	10
Balance at December 31	48	34
Increase (decrease)	14	24
Caesars Rewards
Disaggregation of Revenue [Line Items]
Balance at January 1	94	13
Balance at December 31	91	94
Increase (decrease)	(3)	81
Customer Deposits and Other Deferred Revenue
Disaggregation of Revenue [Line Items]
Balance at January 1	310	172
Balance at December 31	560	310
Increase (decrease)	$ 250	$ 138

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130531-203044

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Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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