Fair Value Measurements - Additional Information (Details)		3 Months Ended
	Oct. 06, 2017 USD ($) day $ / shares shares	Mar. 31, 2020 USD ($) interest_rate_swap_agreement $ / shares shares	Mar. 31, 2019 USD ($)	Dec. 31, 2019 $ / shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Aggregate principal amount		$ 9,785,000,000
Gain (loss) on derivative, net		636,000,000	$ (162,000,000)
Accumulated other comprehensive income/(loss)		65,000,000	21,000,000
Interest expense on the statements of operations		7,000,000
Losses that are reported in AOCI at the reporting date that are expected to be reclassified into earnings within the next 12 months		64,000,000
Level 2 | Liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, option, changes in fair value, gain (loss)		$ 21,000,000	$ (6,000,000)
Convertible notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate of debt		11.50%		4.00%
Traded price of convertible notes (usd per share) | $ / shares		$ 109.40		$ 192.55
Designated as hedging instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of interest rate derivatives | interest_rate_swap_agreement		10
Derivative, notional amount		$ 3,000,000,000.0
CEC Convertible Notes | Unsecured debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Aggregate principal amount	$ 1,100,000,000
Interest rate of debt	5.00%
Number of equity instruments of debt (in shares) | shares	0.139	151,000,000
Stock price trigger (usd per share) | $ / shares	$ 1.00
Traded price of convertible notes (usd per share) | $ / shares	$ 7.19
Percentage of common shares outstanding	17.90%
Conversion percentage	140.00%
Debt convertible, trading days | day	20
Consecutive trading day period | day	30
Term of convertible notes		4 years 6 months
Convertible notes | Unsecured debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Aggregate principal amount		$ 1,085,000,000
Interest rate of debt		5.00%
Term of convertible notes		7 years
Convertible notes face value		$ 1,100,000,000
Caesars Entertainment, Inc. | CEC Convertible Notes | Unsecured debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of equity instruments of debt (in shares) | shares		156,000,000