XML 60 R49.htm IDEA: XBRL DOCUMENT v3.24.3
Investments (Details)
$ in Millions
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2024
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2024
USD ($)
railroad
Sep. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
Schedule of Investments [Line Items]          
Other liabilities $ 1,786   $ 1,786   $ 1,839
Number of railroads | railroad     6    
Purchased services and rents $ 497 $ 517 $ 1,541 $ 1,519  
Conrail, Economic          
Schedule of Investments [Line Items]          
Equity method investment, ownership (as a percent) 58.00%   58.00%    
Conrail, Voting          
Schedule of Investments [Line Items]          
Equity method investment, ownership (as a percent) 50.00%   50.00%    
Conrail Inc          
Schedule of Investments [Line Items]          
Equity method investments $ 1,700   $ 1,700   1,700
Expenses for operation of the Shared Assets Areas 44 39 146 123  
Equity in the earnings of investee 19 15 62 50  
Other liabilities $ 534   $ 534   $ 534
Due to affiliate, average interest rate (as a percent)     1.31%   1.31%
TTX Company          
Schedule of Investments [Line Items]          
Equity method investment, ownership (as a percent) 19.78%   19.78%    
Equity in the earnings of investee $ 13 13 $ 40 34  
Purchased services and rents $ 72 $ 66 $ 220 $ 201