Segment Reporting and Information about Geographic Areas - Schedule of Long-Lived Assets by Geographic Area (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	$ 40,760	$ 34,954
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	32,461	26,629
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	4,175	4,258
Other international
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	$ 4,124	$ 4,067