Goodwill and Intangible Assets, net - Schedule of Accumulated Amortization of Intangible Assets Other Than Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-intangible assets, excluding goodwill- gross	$ 1,443	$ 594
Finite-lived intangible assets, accumulated amortization	(234)	(93)
Finite-lived intangible assets, net carrying amount	1,209	501	$ 53
Indefinite-lived intangible assets (excluding goodwill)	3,711	3,782	1,058
Total gaming licenses and other intangible assets, net	4,920	4,283	$ 1,111
Trademarks
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Indefinite-lived intangible assets (excluding goodwill)	1,998	2,161
Gaming rights
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Indefinite-lived intangible assets (excluding goodwill)	1,190	1,098
Caesars Rewards
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Indefinite-lived intangible assets (excluding goodwill)	523	523
Customer relationships
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-intangible assets, excluding goodwill- gross	587	510
Finite-lived intangible assets, accumulated amortization	(187)	(92)
Finite-lived intangible assets, net carrying amount	$ 400	418
Customer relationships | Minimum
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-lived intangible asset, useful life	3 years
Customer relationships | Maximum
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-lived intangible asset, useful life	7 years
Gaming rights and others
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-lived intangible asset, useful life	34 years
Finite-intangible assets, excluding goodwill- gross	$ 174	84
Finite-lived intangible assets, accumulated amortization	(7)	(1)
Finite-lived intangible assets, net carrying amount	$ 167	83
Gaming rights and others | Minimum
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-lived intangible asset, useful life	20 years
Gaming rights and others | Maximum
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-lived intangible asset, useful life	34 years
Trademarks
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-lived intangible asset, useful life	15 years
Finite-intangible assets, excluding goodwill- gross	$ 322	0
Finite-lived intangible assets, accumulated amortization	(21)	0
Finite-lived intangible assets, net carrying amount	$ 301	0
Reacquired Rights
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-lived intangible asset, useful life	24 years
Finite-intangible assets, excluding goodwill- gross	$ 250	0
Finite-lived intangible assets, accumulated amortization	(7)	0
Finite-lived intangible assets, net carrying amount	$ 243	0
Technology-Based Intangible Assets
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-lived intangible asset, useful life	6 years
Finite-intangible assets, excluding goodwill- gross	$ 110	0
Finite-lived intangible assets, accumulated amortization	(12)	0
Finite-lived intangible assets, net carrying amount	$ 98	$ 0