Property and Equipment - Components (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 283,730	$ 238,800
Total accumulated depreciation and amortization	97,015	78,519
Total property and equipment, net	186,715	160,281	$ 113,114
Land and buildings
Property, Plant and Equipment [Line Items]
Gross property and equipment	91,650	81,104
Equipment
Property, Plant and Equipment [Line Items]
Gross property and equipment	157,458	128,683
Other assets
Property, Plant and Equipment [Line Items]
Gross property and equipment	4,602	4,118
Construction in progress
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 30,020	$ 24,895