Income Taxes - Additional Information (Details) $ / shares in Units, MOP$ in Millions, $ in Millions	1 Months Ended	12 Months Ended
	Aug. 31, 2018	Dec. 31, 2018 USD ($) $ / shares	Dec. 31, 2018 MOP (MOP$)	Dec. 31, 2017 USD ($) $ / shares	Dec. 31, 2016 USD ($) $ / shares	Dec. 31, 2015 USD ($)
Income Taxes [Line Items]
Macao income tax exemption, reduction in net income		$ 184		$ 158	$ 127
Macao income tax exemption, reduction in earnings per share (USD per share) | $ / shares		$ 0.23		$ 0.20	$ 0.16
Statutory tax rate		21.00%	21.00%	35.00%	35.00%
Income tax expense		$ (375)		$ 209	$ (239)
Deferred tax assets, valuation allowance		4,769		4,690
Unrecognized tax benefit, reduction of U.S. foreign tax credit		67		62	58
Unrecognized tax benefits		118		92	74	$ 65
Unrecognized tax benefits, effective income tax rate impact		103		80	65
Income tax examination, penalties and interest accrued		3		1	0
Other Long-Term Liabilities [Member]
Income Taxes [Line Items]
Unrecognized tax benefits		51		30	$ 16
U.S. Foreign Tax [Member]
Income Taxes [Line Items]
Tax credit carryforward, amount		$ 4,990		5,000
Tax credit carryforward, expiration date		Dec. 31, 2021	Dec. 31, 2021
Tax Cuts and Jobs Act [Member]
Income Taxes [Line Items]
Income tax expense		$ (57)		526
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Operating loss carryforward, amount		$ 232		237
Operating loss carryforward, expiration date		Dec. 31, 2029	Dec. 31, 2029
Macao [Member] | Foreign Tax Authority [Member] | Macao Finance Bureau (MFB) [Member]
Income Taxes [Line Items]
Macao income tax exemption, termination date	June 26, 2022
Macao income tax exemption, annual payment, termination date		end of 2018	end of 2018
Macao tax agreement, annual payment (patacas converted to USD at balance sheet date)		$ 5	MOP$ 42
Macao tax due on dividend distributions, percent		12.00%	12.00%
Tax on gross gaming revenue, percent		35.00%	35.00%
Statutory Tax Rate, Percent		12.00%	12.00%
Macao [Member] | Foreign Tax Authority [Member] | Macao Finance Bureau (MFB) [Member] | Earliest Tax Year [Member]
Income Taxes [Line Items]
Income tax examination, year subject to examination		2014	2014
United States [Member] | U.S. Deferred Tax Asset [Member]
Income Taxes [Line Items]
Deferred tax assets, valuation allowance		$ 4,500		4,430
United States [Member] | Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Income Taxes [Line Items]
Statutory tax rate		21.00%	21.00%
United States [Member] | Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] | Earliest Tax Year [Member]
Income Taxes [Line Items]
Income tax examination, year subject to examination		2010	2010
Foreign Subsidiaries [Member]
Income Taxes [Line Items]
Operating loss carryforward, amount		$ 2,210		2,140
Operating loss carryforward, expiration date		Dec. 31, 2019	Dec. 31, 2019
Amount of undistributed earnings of foreign subsidiaries		$ 3,530
Foreign Subsidiaries [Member] | Foreign Deferred Tax Asset [Member]
Income Taxes [Line Items]
Deferred tax assets, valuation allowance		$ 268		$ 261
Singapore [Member] | Foreign Tax Authority [Member] | Inland Revenue, Singapore (IRAS) [Member]
Income Taxes [Line Items]
Statutory Tax Rate, Percent		17.00%	17.00%
Singapore [Member] | Foreign Tax Authority [Member] | Inland Revenue, Singapore (IRAS) [Member] | Earliest Tax Year [Member]
Income Taxes [Line Items]
Income tax examination, year subject to examination		2014	2014