Supplementary Information for Certain Balance Sheet Accounts - Deferred Revenue and Accrued Expenses (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts payable, accrued liabilities and deferred revenue	$ 1,007	$ 1,053
Accrued discretionary and incentive compensation	220	835
Accrued vacation	167	154
Accrued 401(k) contributions	21	63
Other employee-related liabilities	84	106
Total deferred revenue and accrued expenses	$ 1,499	$ 2,211