Litigation, Contractual Commitments, and Contingencies Litigation, Contractual Commitments, and Contingencies (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended	72 Months Ended
	Mar. 31, 2018	Sep. 01, 2023	Dec. 31, 2017
Other Commitments [Line Items]
Disposal Group, Including Discontinued Operation, Other Liabilities	$ 93		$ 101
Bankruptcy Claims, Amount of Claims Filed	892
Accrued Liabilities	102
Self-Insurance Reserve	182		$ 192
Convertible Debt [Member]
Other Commitments [Line Items]
Restricted Cash and Cash Equivalents	$ 53
Common Stock, Capital Shares Reserved for Future Issuance	9
CEC Convertible Notes
Other Commitments [Line Items]
Obligations, Fair Value Disclosure	$ 34
VICI Properties, Inc. [Member] | Golf Courses [Member]
Other Commitments [Line Items]
Liabilities, Other than Long-term Debt, Noncurrent	143
Debt Instrument, Annual Principal Payment	10
Finance Lease, Right-of-Use Asset, Amortization	3
NV Energy Exit
Other Commitments [Line Items]
Business Exit Costs	48
Other Accrued Liabilities, Current	39
Business Exit Costs Fair Value	$ 27
Scenario, Forecast [Member] | NV Energy Exit
Other Commitments [Line Items]
Business Exit Costs		$ 31