Income Taxes - Additional Information1 (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Line Items]
Net deferred tax asset	$ 379
Tax credit carry forward period	10 years
Domestic losses recaptured in foreign tax credit carry forward.	$ 1,500
Unrecognized tax benefits, if recognized, would affect the effective tax rate	9	$ 9
Macau [Member]
Income Tax Disclosure [Line Items]
Deferred tax assets, valuation allowance	153
Hong Kong [Member]
Income Tax Disclosure [Line Items]
Net operating losses, valuation allowance	3
2022 [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforward expiration amount	$ 340
Foreign tax credit carryforward, expiration date	Dec. 31, 2022
2023 [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforward expiration amount	$ 976
Foreign tax credit carryforward, expiration date	Dec. 31, 2023
2024 [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforward expiration amount	$ 769
Foreign tax credit carryforward, expiration date	Dec. 31, 2024
2025 [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforward expiration amount	$ 674
Foreign tax credit carryforward, expiration date	Dec. 31, 2025
2027 [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforward expiration amount	$ 200
Foreign tax credit carryforward, expiration date	Dec. 31, 2027
2026 [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforward expiration amount	$ 134
Foreign tax credit carryforward, expiration date	Dec. 31, 2026
Macau [Member]
Income Tax Disclosure [Line Items]
Valuation allowance on foreign tax credit	$ 2,700
Foreign tax credit carryover	$ 3,100
Special gaming tax rate	35.00%
State [Member]
Income Tax Disclosure [Line Items]
Complementary tax	$ 885
Deferred tax assets after federal tax effect and before valuation allowance	57
Deferred tax assets, valuation allowance	$ 6
State [Member] \| Minimum [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards expire	2025
State [Member] \| Maximum [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards expire	2040

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