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Guarantees and Indemnifications (Narrative) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Noncurrent Liabilities    
Guarantor Obligations [Line Items]    
Face value of guarantees $ 2 $ 2
Letters of credit    
Guarantor Obligations [Line Items]    
Maximum potential amount of future payments associated with guarantees 339  
Performance guarantee | Customers and other third parties    
Guarantor Obligations [Line Items]    
Maximum potential amount of future payments associated with guarantees 26  
Performance guarantee | Spectra Capital    
Guarantor Obligations [Line Items]    
Maximum potential amount of future payments associated with guarantees $ 25