Earnings per Share - Schedule of Reconciliation of the Numerators and Denominators of the Basic and Diluted Net Income (Loss) Per Share Computations (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Earnings Per Share [Abstract]
Net loss attributable to Caesars	$ (62)	$ (82)	$ (160)	$ (197)
Shares outstanding:
Weighted average shares outstanding – basic (in shares)	204	209	204	210
Weighted average shares outstanding – diluted (in shares)	204	209	204	210
Net loss per common share attributable to common stockholders – basic (in dollars per share)	$ (0.30)	$ (0.39)	$ (0.78)	$ (0.93)
Net loss per common share attributable to common stockholders – diluted (in dollars per share)	$ (0.30)	$ (0.39)	$ (0.78)	$ (0.93)