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Goodwill and Intangible Assets, net - Schedule of Changes to Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	$ 9,968	$ 922
Transferred to assets held for sale		(18)
Acquired	1,211	9,064
Other	1
Goodwill, gross, ending balance	11,180	9,968
Accumulated Impairment:
Accumulated Impairment, beginning balance	(104)	(12)
Impairment		(100)
Transferred to assets held for sale		8
Accumulated Impairment, ending balance	(104)	(104)
Goodwill, net carrying value, ending value	11,076	9,864
Las Vegas
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	6,873	0
Transferred to assets held for sale		0
Acquired	0	6,873
Other	16
Goodwill, gross, ending balance	6,889	6,873
Accumulated Impairment:
Accumulated Impairment, beginning balance	0	0
Impairment		0
Transferred to assets held for sale		0
Accumulated Impairment, ending balance	0	0
Goodwill, net carrying value, ending value	6,889	6,873
Regional
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	3,045	922
Transferred to assets held for sale		(18)
Acquired	63	2,141
Other	(15)
Goodwill, gross, ending balance	3,093	3,045
Accumulated Impairment:
Accumulated Impairment, beginning balance	(104)	(12)
Impairment		(100)
Transferred to assets held for sale		8
Accumulated Impairment, ending balance	(104)	(104)
Goodwill, net carrying value, ending value	2,989	2,941
Zero or negative carrying amount of goodwill	352
Caesars Digital
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	50	0
Transferred to assets held for sale		0
Acquired	1,148	50
Other	0
Goodwill, gross, ending balance	1,198	50
Accumulated Impairment:
Accumulated Impairment, beginning balance	0	0
Impairment		0
Transferred to assets held for sale		0
Accumulated Impairment, ending balance	0	0
Goodwill, net carrying value, ending value	1,198	50
Managed and Branded
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	0	0
Transferred to assets held for sale		0
Acquired	0	0
Other	0
Goodwill, gross, ending balance	0	0
Accumulated Impairment:
Accumulated Impairment, beginning balance	0	0
Impairment		0
Transferred to assets held for sale		0
Accumulated Impairment, ending balance	0	0
Goodwill, net carrying value, ending value	$ 0	$ 0

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