v3.26.1
Operations and Segmentation - Narrative (Details)
$ in Millions
3 Months Ended
Mar. 31, 2026
USD ($)
segment
Mar. 31, 2025
USD ($)
Segment Reporting Information [Line Items]    
Number of reportable segments | segment 1  
Number of operating segments | segment 1  
Total operating revenues | $ $ 6,217 $ 6,027
Mexico    
Segment Reporting Information [Line Items]    
Total operating revenues | $ $ 729 $ 719