Supplemental Financial Statement Information - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid expenses	$ 400	$ 310
Other receivables	717	710
Other	564	459
Prepaid expenses and other current assets	$ 1,681	$ 1,479