Goodwill and Intangible Assets, net - Schedule of Finite-Lived and Indefinite-Lived Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	$ 1,591	$ 1,554
Accumulated Amortization	(887)	(824)
Net Carrying Amount	704	730
Non-amortizing intangible assets other than Goodwill	3,255	3,255
Total amortizing and non-amortizing intangible assets other than Goodwill, net	3,959	3,985
Trademarks
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Non-amortizing intangible assets other than Goodwill	1,749	1,749
Gaming rights
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Non-amortizing intangible assets other than Goodwill	983	983
Caesars Rewards
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Non-amortizing intangible assets other than Goodwill	523	523
Customer relationships
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	595	595
Accumulated Amortization	(529)	(495)
Net Carrying Amount	$ 66	100
Customer relationships | Minimum
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Useful Life	1 year
Customer relationships | Maximum
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Useful Life	7 years
Gaming rights and other
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	$ 248	262
Accumulated Amortization	(60)	(57)
Net Carrying Amount	$ 188	205
Gaming rights and other | Minimum
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Useful Life	10 years
Gaming rights and other | Maximum
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Useful Life	34 years
Trademarks
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Useful Life	15 years
Gross Carrying Amount	$ 313	313
Accumulated Amortization	(136)	(127)
Net Carrying Amount	$ 177	186
Reacquired rights
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Useful Life	24 years
Gross Carrying Amount	$ 250	250
Accumulated Amortization	(54)	(49)
Net Carrying Amount	196	201
Technology
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	134	134
Accumulated Amortization	(108)	(96)
Net Carrying Amount	$ 26	38
Technology | Minimum
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Useful Life	3 years
Technology | Maximum
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Useful Life	6 years
In-place leases
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	$ 51	0
Accumulated Amortization	0	0
Net Carrying Amount	$ 51	$ 0
In-place leases | Minimum
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Useful Life	3 years
In-place leases | Maximum
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Useful Life	15 years