Revenue Recognition - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($) distribution_method	Dec. 31, 2022 USD ($)
Disaggregation of Revenue [Line Items]
Number of gas distribution methods | distribution_method	3
Contract assets	$ 175	$ 124
Contract liabilities	3,997	3,986
Contract liabilities, current	3,070	3,073
Contract liabilities in other long-term liabilities	927	$ 913
Revenue recognized	403
Estimated consideration related to unsatisfied performance obligations	$ 48,000
Long-term supply contracts	20 years
Engineering | Russia | Russia-Ukraine Conflict, International Sanctions
Disaggregation of Revenue [Line Items]
Contract liabilities	$ 1,800
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation, percentage	50.00%
Remaining performance obligations, period	5 years
Minimum
Disaggregation of Revenue [Line Items]
On-site product supply contract	10 years
Minimum | Merchant
Disaggregation of Revenue [Line Items]
Customer supply agreements	3 years
Minimum | Packaged Gas
Disaggregation of Revenue [Line Items]
Customer supply agreements	1 year
Maximum
Disaggregation of Revenue [Line Items]
On-site product supply contract	20 years
Maximum | Merchant
Disaggregation of Revenue [Line Items]
Customer supply agreements	7 years
Maximum | Packaged Gas
Disaggregation of Revenue [Line Items]
Customer supply agreements	3 years