Property, Plant & Equipment - Net - Property, Plant & Equipment - Net (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Gross balance	$ 55,325	$ 50,687
Less: accumulated depreciation	(30,773)	(27,139)
Property. plant and equipment - net	24,552	23,548
Production plants
Property, Plant and Equipment [Line Items]
Gross balance	33,071	30,554
Storage tanks
Property, Plant and Equipment [Line Items]
Gross balance	5,445	4,807
Transportation equipment and other
Property, Plant and Equipment [Line Items]
Gross balance	4,050	3,434
Cylinders
Property, Plant and Equipment [Line Items]
Gross balance	4,993	4,604
Buildings
Property, Plant and Equipment [Line Items]
Gross balance	3,275	3,002
Land and improvements
Property, Plant and Equipment [Line Items]
Gross balance	1,087	1,047
Construction in progress
Property, Plant and Equipment [Line Items]
Gross balance	$ 3,404	$ 3,239
Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Minimum | Production plants
Property, Plant and Equipment [Line Items]
Useful life	10 years
Minimum | Storage tanks
Property, Plant and Equipment [Line Items]
Useful life	15 years
Minimum | Transportation equipment and other
Property, Plant and Equipment [Line Items]
Useful life	3 years
Minimum | Cylinders
Property, Plant and Equipment [Line Items]
Useful life	10 years
Minimum | Buildings
Property, Plant and Equipment [Line Items]
Useful life	25 years
Minimum | Land and improvements
Property, Plant and Equipment [Line Items]
Useful life	0 years
Maximum
Property, Plant and Equipment [Line Items]
Useful life	40 years
Maximum | Production plants
Property, Plant and Equipment [Line Items]
Useful life	20 years
Maximum | Storage tanks
Property, Plant and Equipment [Line Items]
Useful life	20 years
Maximum | Transportation equipment and other
Property, Plant and Equipment [Line Items]
Useful life	15 years
Maximum | Cylinders
Property, Plant and Equipment [Line Items]
Useful life	30 years
Maximum | Buildings
Property, Plant and Equipment [Line Items]
Useful life	40 years
Maximum | Land and improvements
Property, Plant and Equipment [Line Items]
Useful life	20 years