Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 25,888	$ 23,282	$ 20,869
Non-rail logistics subsidiary	685	769	688
Accessorial and other	712	639	403
Total other revenues	1,397	1,408	1,091
Net receivables from contract with customers	1,200	1,100
Remaining performance obligations	293	274
Consumer Products
Disaggregation of Revenue [Line Items]
Revenues	9,234	8,256	7,262
Industrial Products
Disaggregation of Revenue [Line Items]
Revenues	5,587	5,291	5,039
Agricultural Products
Disaggregation of Revenue [Line Items]
Revenues	5,743	5,100	4,822
Coal
Disaggregation of Revenue [Line Items]
Revenues	3,927	3,227	2,655
Total freight revenues
Disaggregation of Revenue [Line Items]
Revenues	$ 24,491	$ 21,874	$ 19,778