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		9 Months Ended		36 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Earnings Per Share [Abstract]
Income/(loss) from continuing operation, net of income taxes	$ (791)	$ (860)	$ 6,005	$ (1,583)
Loss from discontinued operation, net of income taxes	0	(48)	(7)	(178)
Net income/(loss) attributable to Caesars	$ (791)	$ (908)	$ 5,998	$ (1,761)	$ (7,200)
Weighted-average common shares outstanding - basic	145	144	145	142
Stock options	0	0	2	0
Weighted average common shares and dilutive potential common shares	145	144	147	142
Basic income/(loss) per share from continuing operations	$ (5.44)	$ (5.96)	$ 41.46	$ (11.16)
Basic loss per share from discontinued operations	0.00	(0.33)	(0.04)	(1.25)
Basic income/(loss) per share	(5.44)	(6.29)	41.42	(12.41)
Diluted income/(loss) per share from continuing operations	(5.44)	(5.96)	40.92	(11.16)
Diluted loss per share from discontinued operations	0.00	(0.33)	(0.04)	(1.25)
Diluted income/(loss) per share	$ (5.44)	$ (6.29)	$ 40.88	$ (12.41)