Segment Reporting and Information about Geographic Areas - Schedule of Long-Lived Assets by Geographic Area (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	$ 41,156	$ 34,954
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	32,367	26,629
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	4,447	4,258
Other international
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	$ 4,342	$ 4,067