Segment Reporting Segment Reporting - Condensed Statements of Operations - By Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Other revenue	$ 129	$ 122
Net revenues	963	950
Depreciation and amortization	102	112
Income/(loss) from operations	158	88
Interest expense	(147)	(151)
Restructuring of CEOC and other	(463)	(237)
Income tax benefit/(provision)	(72)	(7)
Operating Segments [Member] | CERP
Segment Reporting Information [Line Items]
Other revenue	77	76
Net revenues	546	528
Depreciation and amortization	56	73
Income/(loss) from operations	110	78
Interest expense	(98)	(99)
Restructuring of CEOC and other	0	(1)
Income tax benefit/(provision)	(6)	6
Operating Segments [Member] | CGP
Segment Reporting Information [Line Items]
Other revenue	55	50
Net revenues	421	426
Depreciation and amortization	46	39
Income/(loss) from operations	55	51
Interest expense	(48)	(52)
Restructuring of CEOC and other	0	1
Income tax benefit/(provision)	0	1
Other
Segment Reporting Information [Line Items]
Other revenue	1	1
Net revenues	0	1
Depreciation and amortization	0	0
Income/(loss) from operations	(7)	(41)
Interest expense	(1)	0
Restructuring of CEOC and other	(463)	(237)
Income tax benefit/(provision)	(66)	(14)
Eliminations
Segment Reporting Information [Line Items]
Other revenue	(4)	(5)
Net revenues	(4)	(5)
Depreciation and amortization	0	0
Income/(loss) from operations	0	0
Interest expense	0	0
Restructuring of CEOC and other	0	0
Income tax benefit/(provision)	$ 0	$ 0