Revenue Recognition - Summary of Net Revenues Disaggregated Type of Revenue and Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Net revenues	$ 9,570,000	$ 3,628,000	$ 2,528,000
Casino and pari-mutuel commissions
Disaggregation of Revenue [Line Items]
Net revenues	5,827,000	2,482,000	1,808,000
Food and beverage
Disaggregation of Revenue [Line Items]
Net revenues	1,140,000	342,000	301,000
Hotel
Disaggregation of Revenue [Line Items]
Net revenues	1,551,000	450,000	300,000
Other
Disaggregation of Revenue [Line Items]
Net revenues	1,052,000	354,000	119,000
Corporate and Other
Disaggregation of Revenue [Line Items]
Net revenues	9,000	15,000	8,000
Corporate and Other \| Casino and pari-mutuel commissions
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0
Corporate and Other \| Food and beverage
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0
Corporate and Other \| Hotel
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0
Corporate and Other \| Other
Disaggregation of Revenue [Line Items]
Net revenues	9,000	15,000	8,000
Las Vegas \| Operating Segment
Disaggregation of Revenue [Line Items]
Net revenues	3,409,000	751,000	0
Las Vegas \| Operating Segment \| Casino and pari-mutuel commissions
Disaggregation of Revenue [Line Items]
Net revenues	1,226,000	319,000	0
Las Vegas \| Operating Segment \| Food and beverage
Disaggregation of Revenue [Line Items]
Net revenues	702,000	130,000	0
Las Vegas \| Operating Segment \| Hotel
Disaggregation of Revenue [Line Items]
Net revenues	968,000	186,000	0
Las Vegas \| Operating Segment \| Other
Disaggregation of Revenue [Line Items]
Net revenues	513,000	116,000	0
Regional \| Operating Segment
Disaggregation of Revenue [Line Items]
Net revenues	5,537,000	2,660,000	2,494,000
Regional \| Operating Segment \| Casino and pari-mutuel commissions
Disaggregation of Revenue [Line Items]
Net revenues	4,305,000	2,079,000	1,782,000
Regional \| Operating Segment \| Food and beverage
Disaggregation of Revenue [Line Items]
Net revenues	438,000	211,000	301,000
Regional \| Operating Segment \| Hotel
Disaggregation of Revenue [Line Items]
Net revenues	583,000	264,000	300,000
Regional \| Operating Segment \| Other
Disaggregation of Revenue [Line Items]
Net revenues	211,000	106,000	111,000
Caesars Digital \| Operating Segment
Disaggregation of Revenue [Line Items]
Net revenues	337,000	95,000	26,000
Caesars Digital \| Operating Segment \| Casino and pari-mutuel commissions
Disaggregation of Revenue [Line Items]
Net revenues	296,000	84,000	26,000
Caesars Digital \| Operating Segment \| Food and beverage
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0
Caesars Digital \| Operating Segment \| Hotel
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0
Caesars Digital \| Operating Segment \| Other
Disaggregation of Revenue [Line Items]
Net revenues	41,000	11,000	0
Managed and Branded \| Operating Segment
Disaggregation of Revenue [Line Items]
Net revenues	278,000	107,000	0
Managed and Branded \| Operating Segment \| Casino and pari-mutuel commissions
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0
Managed and Branded \| Operating Segment \| Food and beverage
Disaggregation of Revenue [Line Items]
Net revenues	0	1,000	0
Managed and Branded \| Operating Segment \| Hotel
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0
Managed and Branded \| Operating Segment \| Other
Disaggregation of Revenue [Line Items]
Net revenues	$ 278,000	$ 106,000	$ 0