Property, Plant and Equipment - Components of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total property, plant and equipment before accumulated depreciation	$ 34,985	$ 31,448
Less: Accumulated depreciation	16,045	15,174
Property, plant and equipment	18,940	16,274
Land [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment before accumulated depreciation	353	368
Buildings [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment before accumulated depreciation	9,046	8,832
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment before accumulated depreciation	14,263	12,881
Furniture, fixtures and other [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment before accumulated depreciation	5,399	4,491
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment before accumulated depreciation	$ 5,925	$ 4,875
Minimum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Useful lives (years)	33 years
Minimum [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Useful lives (years)	8 years
Minimum [Member] | Furniture, fixtures and other [Member]
Property, Plant and Equipment [Line Items]
Useful lives (years)	3 years
Maximum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Useful lives (years)	50 years
Maximum [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Useful lives (years)	20 years
Maximum [Member] | Furniture, fixtures and other [Member]
Property, Plant and Equipment [Line Items]
Useful lives (years)	12 years 6 months