Summary of Significant Accounting Policies - Schedule of Cash and Cash Equivalents and Restricted Cash (Detail) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Cash and cash equivalents	$ 16,253	$ 17,576	$ 19,384
Restricted cash included in prepaid expenses and other current assets	294	345	238
Restricted cash included in other non-current assets	377	223	279
Total as presented in the consolidated statements of cash flows	$ 16,924	$ 18,144	$ 19,901	$ 6,783