Litigation, Contractual Commitments, and Contingencies - Additional Information (Details) - USD ($) shares in Millions, $ in Millions		3 Months Ended		5 Months Ended	72 Months Ended
		Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Sep. 01, 2023	Dec. 31, 2018
Other Commitments [Line Items]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount				$ 29
Contractual Obligation	[1]	$ 11,659		11,659
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized		32		32
Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost		10
Bankruptcy Claims, Amount of Claims Filed		514
Accrued Liabilities		44		44
Self-Insurance Reserve		175		175		$ 173
Convertible Debt [Member]
Other Commitments [Line Items]
Restricted Cash and Cash Equivalents		$ 49		$ 49
Common Stock, Capital Shares Reserved for Future Issuance		8		8
CEC Convertible Notes
Other Commitments [Line Items]
Obligations, Fair Value Disclosure		$ 32		$ 32
VICI Properties, Inc. [Member] | Golf Courses [Member]
Other Commitments [Line Items]
Liabilities, Other than Long-term Debt, Noncurrent		144		144
Debt Instrument, Annual Principal Payment		10		10
Finance Lease, Right-of-Use Asset, Amortization		3	$ 3
NV Energy Exit
Other Commitments [Line Items]
Business Exit Costs		48
Other Accrued Liabilities, Current		33		33
Business Exit Costs Fair Value		23
Scenario, Forecast [Member] | NV Energy Exit
Other Commitments [Line Items]
Business Exit Costs					$ 31
Sports Partnership [Member]
Other Commitments [Line Items]
Contractual Obligation		$ 172		$ 172

[1] (1) Debt principal payments are estimated amounts based on maturity dates and potential borrowings under our revolving credit facilities. Interest payments are estimated based on the forward-looking LIBOR curve and include the estimated impact of the ten interest rate swap agreements (see Note 6). Actual payments may differ from these estimates.