v3.26.1
Revenue Recognition - Narrative (Details)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
distribution_method
Dec. 31, 2025
USD ($)
Disaggregation of Revenue [Line Items]    
Number of gas distribution methods | distribution_method 3  
Contract assets $ 523 $ 336
Contract​ ​asset​, current 432 269
Contract​ asset in other long-term assets 91 67
Contract liabilities 2,413 2,515
Contract liabilities, current 1,128 1,231
Contract liabilities in other long-term liabilities 1,285 1,284
Revenue recognized   $ 524
Estimated consideration related to unsatisfied performance obligations $ 64,000  
Long-term supply contracts (years) 30 years  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-07-01    
Disaggregation of Revenue [Line Items]    
Remaining performance obligations, period 6 years  
Remaining performance obligation, percentage 50.00%  
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