Revenue Recognition - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) distributionMethod	Dec. 31, 2023 USD ($)
Disaggregation of Revenue [Line Items]
Number of gas distribution methods | distributionMethod	3
Contract assets	$ 217	$ 196
Contract liabilities	2,901	2,950
Contract liabilities, current	1,827	1,901
Contract liabilities in other long-term liabilities	1,074	$ 1,049
Revenue recognized	358
Estimated consideration related to unsatisfied performance obligations	$ 48,000
Long-term supply contracts (years)	20 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation, percentage	50.00%
Remaining performance obligations, period	5 years
Engineering | Russia | Russia-Ukraine Conflict, International Sanctions
Disaggregation of Revenue [Line Items]
Contract liabilities	$ 409
Minimum
Disaggregation of Revenue [Line Items]
On-site product supply contract (years)	10 years
Minimum | Merchant
Disaggregation of Revenue [Line Items]
Customer supply agreements (years)	3 years
Minimum | Packaged Gas
Disaggregation of Revenue [Line Items]
Customer supply agreements (years)	1 year
Maximum
Disaggregation of Revenue [Line Items]
On-site product supply contract (years)	20 years
Maximum | Merchant
Disaggregation of Revenue [Line Items]
Customer supply agreements (years)	7 years
Maximum | Packaged Gas
Disaggregation of Revenue [Line Items]
Customer supply agreements (years)	3 years