Segment Reporting - Condensed Statements of Operations - By Segment (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Net revenues		$ 2,185	$ 993	$ 6,276	$ 2,967
Depreciation and amortization		295	150	843	348
Income/(loss) from operations		232	84	639	383
Interest expense		(341)	(120)	(1,005)	(409)
Restructuring and support expenses and other (1)	[1],[2]	109	(448)	338	(2,319)
Income tax benefit (2)	[3],[4]	111	45	134	(34)
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net revenues		152	23	446	57
Depreciation and amortization		17	2	49	5
Income/(loss) from operations		(81)	(70)	(285)	(155)
Interest expense		(117)	(117)	(346)	(384)
Restructuring and support expenses and other (1)	[1],[2]	105	(468)	332	(2,336)
Income tax benefit (2)	[3],[4]	111	45	134	(34)
Operating Segments | Las Vegas
Segment Reporting Information [Line Items]
Net revenues		910	687	2,804	2,042
Depreciation and amortization		149	124	423	277
Income/(loss) from operations		141	107	535	415
Interest expense		(87)	0	(245)	(8)
Restructuring and support expenses and other (1)	[1],[2]	4	0	4	(3)
Income tax benefit (2)	[3],[4]	0	0	0	0
Operating Segments | Other U.S.
Segment Reporting Information [Line Items]
Net revenues		1,125	284	3,033	870
Depreciation and amortization		129	24	371	66
Income/(loss) from operations		172	47	389	123
Interest expense		(137)	(3)	(414)	(17)
Restructuring and support expenses and other (1)	[1],[2]	0	20	2	20
Income tax benefit (2)	[3],[4]	0	0	0	0
Intersegment Elimination
Segment Reporting Information [Line Items]
Net revenues		(2)	(1)	(7)	(2)
Depreciation and amortization		0	0	0	0
Income/(loss) from operations		0	0	0	0
Interest expense		0	0	0	0
Restructuring and support expenses and other (1)	[1],[2]	0	0	0	0
Income tax benefit (2)	[3],[4]	$ 0	$ 0	$ 0	$ 0

[1] (1) 2018 amount primarily represents a change in fair value of our derivative liability related to the conversion option of the CEC Convertible Notes; 2017 amount primarily represents CEC’s costs in connection with the restructuring of CEOC.

[2] (2) 2018 amount primarily represents a change in fair value of our derivative liability related to the conversion option of the CEC Convertible Notes; 2017 amount primarily represents CEC’s costs in connection with the restructuring of CEOC.

[3] (1) Taxes are recorded at the consolidated level and not estimated or recorded to our Las Vegas and Other U.S. segments.

[4] (2) Taxes are recorded at the consolidated level and not estimated or recorded to our Las Vegas and Other U.S. segments.