Balance Sheet Components - Schedule of Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 30,723	$ 29,202
Less accumulated depreciation	(11,474)	(10,601)
Property, plant and equipment, net	19,249	18,601
Core systems
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	12,890	12,604
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	9,475	8,972
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,204	1,918
Internal-use software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,149	1,936
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,980	2,045
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,652	1,407
Personal property
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 373	$ 320