Assets Held for Sale - Schedule of Assets and Liabilities Held for Sale, Accounted Carrying Value Lower than Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
ASSETS
Assets held for sale	$ 4,248	$ 1,583
Liabilities
Current liabilities	3,238	787
Deferred finance obligation	340	336
Baton Rouge | Disposal Group, Held-for-sale, Not Discontinued Operations
ASSETS
Cash	2	2
Property and equipment, net	2	2
Other assets, net	1	1
Assets held for sale	5	5
Liabilities
Current liabilities	3	2
Other long-term liabilities	1	1
Liabilities related to assets held for sale	4	3
MontBleu | Disposal Group, Held-for-sale, Not Discontinued Operations
ASSETS
Cash		3
Property and equipment, net		37
Goodwill		0
Gaming licenses and other intangibles, net		0
Other assets, net		32
Assets held for sale		72
Liabilities
Current liabilities		8
Other long-term liabilities		63
Liabilities related to assets held for sale		71
Evansville | Disposal Group, Held-for-sale, Not Discontinued Operations
ASSETS
Cash		7
Property and equipment, net		302
Goodwill		9
Gaming licenses and other intangibles, net		138
Other assets, net		49
Assets held for sale		505
Liabilities
Current liabilities		12
Other long-term liabilities		24
Liabilities related to assets held for sale		36
Harrah’s Louisiana Downs | Disposal Group, Held-for-sale, Not Discontinued Operations
ASSETS
Cash	6	6
Property and equipment, net	10	11
Goodwill	3	3
Gaming licenses and other intangibles, net	5	5
Other assets, net	1	0
Assets held for sale	25	25
Liabilities
Current liabilities	8	6
Other long-term liabilities	5	6
Liabilities related to assets held for sale	13	12
Caesars UK | Disposal Group, Held-for-sale, Not Discontinued Operations
ASSETS
Cash	25	32
Property and equipment, net	75	75
Goodwill	3	3
Gaming licenses and other intangibles, net	29	28
Other assets, net	78	117
Assets held for sale	210	255
Liabilities
Current liabilities	72	73
Other long-term liabilities	111	120
Liabilities related to assets held for sale	183	193
Caesars Southern Indiana | Disposal Group, Held-for-sale, Not Discontinued Operations
ASSETS
Cash	10	8
Property and equipment, net	416	418
Goodwill	136	136
Gaming licenses and other intangibles, net	23	23
Other assets, net	7	4
Assets held for sale	592	589
Liabilities
Current liabilities	17	13
Other long-term liabilities	335	332
Liabilities related to assets held for sale	352	$ 345
William Hill International | Disposal Group, Held-for-sale, Not Discontinued Operations
ASSETS
Assets held for sale	3,400
Liabilities
Liabilities related to assets held for sale	$ 2,700