Supplementary Information for Certain Balance Sheet Accounts - Deferred Revenue and Accrued Expenses (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts payable, accrued liabilities and deferred revenue	$ 1,106	$ 1,073
Accrued discretionary and incentive compensation	266	795
Accrued vacation	183	150
Other employee-related liabilities	83	86
Total deferred revenue and accrued expenses	$ 1,638	$ 2,104