Earnings Per Share Earnings Per Share - Basic and Dilutive Net Earnings Per Share Reconciliation (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended		36 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Earnings Per Share [Abstract]
Income (Loss) from Continuing Operations Attributable to Parent	$ 15	$ (421)	$ 6,794	$ (724)
Loss, net of income taxes	0	(45)	(7)	(129)
Net income/(loss) attributable to Caesars	$ 15	$ (466)	$ 6,787	$ (853)	$ 7,200
Weighted average common share outstanding	145	144	145	141
Weighted Average Number Diluted Shares Outstanding Adjustment	2	0	2	0
Weighted average common shares and dilutive potential common shares	147	144	147	141
Basic earnings/(loss) per share from continuing operations	$ 0.10	$ (2.92)	$ 46.93	$ (5.15)
Basic loss per share from discontinued operations	0.00	(0.32)	(0.04)	(0.91)
Basic earnings/(loss) per share	0.10	(3.24)	46.89	(6.06)
Diluted earnings/(loss) per share from continuing operations	0.10	(2.92)	46.31	(5.15)
Diluted loss per share from discontinued operations	0.00	(0.32)	(0.04)	(0.91)
Diluted earnings/(loss) per share	$ 0.10	$ (3.24)	$ 46.27	$ (6.06)