Segment Reporting - Adjusted EBITDA (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Net income/(loss) attributable to Caesars		$ (217)	$ (34)
Net Income (Loss) Attributable to Noncontrolling Interest		(1)	0
Income tax benefit (1)	[1],[2]	(29)	13
Other income/(loss)	[3],[4]	(138)	184
Interest expense		349	330
Depreciation and amortization		247	280
Other operating costs	[5]	29	66
Stock-based compensation expense		21	18
Other items (4)	[6]	25	29
Adjusted EBITDA		562	518
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net income/(loss) attributable to Caesars		(334)	(56)
Net Income (Loss) Attributable to Noncontrolling Interest		0
Income tax benefit (1)	[1],[2]	(29)	13
Other income/(loss)	[3],[4]	(138)	180
Interest expense		123	114
Depreciation and amortization		16	17
Other operating costs	[5]	14	32
Stock-based compensation expense		17	14
Other items (4)	[6]	24	27
Adjusted EBITDA		(31)	(19)
Operating Segments | Las Vegas, NV [Member]
Segment Reporting Information [Line Items]
Net income/(loss) attributable to Caesars		143	72
Net Income (Loss) Attributable to Noncontrolling Interest		0
Income tax benefit (1)	[1],[2]	0	0
Other income/(loss)	[3],[4]	0	2
Interest expense		83	78
Depreciation and amortization		128	142
Other operating costs	[5]	3	28
Stock-based compensation expense		2	2
Other items (4)	[6]	1	1
Adjusted EBITDA		360	321
Operating Segments | Other U.S.
Segment Reporting Information [Line Items]
Net income/(loss) attributable to Caesars		(26)	(50)
Net Income (Loss) Attributable to Noncontrolling Interest		(1)
Income tax benefit (1)	[1],[2]	0	0
Other income/(loss)	[3],[4]	0	2
Interest expense		143	138
Depreciation and amortization		103	121
Other operating costs	[5]	12	6
Stock-based compensation expense		2	2
Other items (4)	[6]	0	1
Adjusted EBITDA		233	216
Intersegment Elimination
Segment Reporting Information [Line Items]
Net income/(loss) attributable to Caesars		0	0
Net Income (Loss) Attributable to Noncontrolling Interest		0
Income tax benefit (1)	[1],[2]	0	0
Other income/(loss)	[3],[4]	0	0
Interest expense		0	0
Depreciation and amortization		0	0
Other operating costs	[5]	0	0
Stock-based compensation expense		0	0
Other items (4)	[6]	0	0
Adjusted EBITDA		$ 0	$ 0

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

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

[3] (2) Amounts include changes in fair value of the derivative liability related to the conversion option of the CEC Convertible Notes and the disputed claims liability as well as interest and dividend income.

[4] (3) Amounts include changes in fair value of the derivative liability related to the conversion option of the CEC Convertible Notes and the disputed claims liability as well as interest and dividend income.

[5] (3) Amounts primarily represent costs incurred in connection with development activities and reorganization activities, and/or recoveries associated with such items, including acquisition and integration costs, contract exit fees including exiting the fully bundled sales system of NV Energy for electric service at our Nevada properties, lease termination costs, weather related property closure costs, severance costs, gains and losses on asset sales, demolition costs primarily at our Las Vegas properties for renovations, and project opening costs.

[6] (4) Amounts include other add-backs and deductions to arrive at Adjusted EBITDA but not separately identified such as professional and consulting services, sign-on and retention bonuses, business optimization expenses and transformation expenses, severance and relocation costs, litigation awards and settlements, and permit remediation costs.