Earnings per Share - Schedule of Reconciliation of the Numerators and Denominators of the Basic and Diluted Net Income Per Share Computations (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net (loss) income attributable to Caesars	$ (926)	$ 37	$ (1,202)	$ 94
Shares outstanding:
Weighted average shares outstanding – basic (in shares)	152,000,000	78,000,000	104,000,000	78,000,000
Weighted average diluted shares outstanding (in shares)	152,000,000	79,000,000	104,000,000	79,000,000
Net (Loss) Income per Share - Basic
Basic (loss) income per share from continuing operations (in dollars per share)	$ (6.09)	$ 0.48	$ (11.55)	$ 1.21
Basic loss per share from discontinued operations (in dollars per share)	0	0	(0.01)	0
Net (loss) income per common share attributable to common stockholders – basic: (in dollars per share)	(6.09)	0.48	(11.56)	1.21
Net (Loss) Income per Share - Diluted
Diluted (loss) income per share from continuing operations (in dollars per share)	(6.09)	0.47	(11.55)	1.20
Diluted loss per share from discontinued operations (in dollars per share)	0	0	(0.01)	0
Net (loss) income per common share attributable to common stockholders – diluted: (in dollars per share)	$ (6.09)	$ 0.47	$ (11.56)	$ 1.20
Restricted Stock Units (RSUs)
Shares outstanding:
Effect of dilutive securities (in shares)		1,000,000		1,000,000