Segment Reporting Segment Reporting - Condensed Statements of Operations - By Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Other	$ 149	$ 136	$ 278	$ 258
Net revenues	1,002	992	1,965	1,942
Depreciation and amortization	96	103	198	215
Income/(loss) from operations	157	111	315	199
Interest expense	(142)	(150)	(289)	(301)
Restructuring of CEOC and other	(1,410)	(2,026)	(1,873)	(2,263)
Income tax benefit/(provision)	(31)	(3)	(103)	(10)
Operating Segments | CERP
Segment Reporting Information [Line Items]
Other	89	82	166	158
Net revenues	570	562	1,116	1,090
Depreciation and amortization	54	60	110	133
Income/(loss) from operations	118	111	228	189
Interest expense	(91)	(99)	(189)	(198)
Restructuring of CEOC and other	(2)	0	(2)	(1)
Income tax benefit/(provision)	(10)	(4)	(16)	2
Operating Segments | CGP
Segment Reporting Information [Line Items]
Other	64	58	119	108
Net revenues	435	435	856	861
Depreciation and amortization	42	44	88	83
Income/(loss) from operations	63	36	118	87
Interest expense	(47)	(48)	(95)	(100)
Restructuring of CEOC and other	5	0	5	1
Income tax benefit/(provision)	0	3	0	4
Other
Segment Reporting Information [Line Items]
Other	2	2	3	3
Net revenues	3	1	3	2
Depreciation and amortization	0	(1)	0	(1)
Income/(loss) from operations	(24)	(36)	(31)	(77)
Interest expense	(4)	(3)	(5)	(3)
Restructuring of CEOC and other	(1,413)	(2,026)	(1,876)	(2,263)
Income tax benefit/(provision)	(21)	(2)	(87)	(16)
Eliminations
Segment Reporting Information [Line Items]
Other	(6)	(6)	(10)	(11)
Net revenues	(6)	(6)	(10)	(11)
Depreciation and amortization	0	0	0	0
Income/(loss) from operations	0	0	0	0
Interest expense	0	0	0	0
Restructuring of CEOC and other	0	0	0	0
Income tax benefit/(provision)	$ 0	$ 0	$ 0	$ 0