XML 65 R52.htm IDEA: XBRL DOCUMENT v3.19.1
Segments - Schedule of Segment Reporting (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Segment Reporting Information, Profit (Loss)      
Operating revenue $ 10,472 $ 9,968  
Operating income 1,020 844  
Interest expense (income), net 83 92  
Depreciation and amortization 615 603  
Total assets, end of period 61,841 58,968 $ 60,266
Capital expenditures 1,360 1,265  
Operating Segments | Airline      
Segment Reporting Information, Profit (Loss)      
Operating revenue 10,424 9,755  
Operating income 1,054 800  
Interest expense (income), net 92 97  
Depreciation and amortization 592 588  
Total assets, end of period 60,343 56,929  
Capital expenditures 1,350 1,250  
Operating Segments | Refinery      
Segment Reporting Information, Profit (Loss)      
Operating revenue 1,283 1,491  
Operating income (34) 44  
Interest expense (income), net (9) (5)  
Depreciation and amortization 23 15  
Total assets, end of period 1,498 2,039  
Capital expenditures 10 15  
Intersegment Sales/Other      
Segment Reporting Information, Profit (Loss)      
Operating income 0 0  
Interest expense (income), net 0 0  
Depreciation and amortization 0 0  
Total assets, end of period 0 0  
Capital expenditures 0 0  
Intersegment Sales/Other | Sales to airline segment      
Segment Reporting Information, Profit (Loss)      
Operating revenue (271) (262)  
Intersegment Sales/Other | Exchanged products      
Segment Reporting Information, Profit (Loss)      
Operating revenue (732) (876)  
Intersegment Sales/Other | Sales of refined products      
Segment Reporting Information, Profit (Loss)      
Operating revenue $ (232) $ (140)