Supplemental Balance Sheet Information (Parenthetical) (Details) - USD ($) $ in Millions		6 Months Ended	12 Months Ended
		Jun. 30, 2022	Dec. 31, 2021
Supplemental Balance Sheet Information Disclosure [Abstract]
VAT assets	[1]	$ 303
Investment in long-term time deposits	[2]	$ 87	$ 90
Investment in long-term time deposits, maturity term		3 years	3 years

[1] On June 7, 2022, the Chinese Ministry of Finance and the Chinese State Tax Administration jointly issued Circular [2022] No. 21, to extend full VAT credit refunds to more sectors and increase the frequency for accepting taxpayers' applications with an aim to support business recovery. Beginning on July 1, 2022, entities engaged in providing catering services in China are allowed to apply for a lump sum refund of VAT assets accumulated prior to March 31, 2019. In addition, VAT assets accumulated after March 31, 2019 can be refunded on a monthly basis. As the benefits of certain VAT assets are expected to be realized within one year pursuant to Circular [2022] No. 21, $303 million of VAT assets as of June 30, 2022 were reclassified from Other assets to Prepaid expense and other current assets.

[2] As of June 30, 2022 and December 31, 2021, the Company had $87 million and $90 million invested in long-term time deposits, respectively, bearing a fixed interest rate, with original maturity of three years. The asset is restricted for use in order to secure the balance of prepaid stored-value cards issued by the Company pursuant to regulatory requirements.