The Company (Details)		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Consumer Products [Member]	Dec. 31, 2013 Industrial Products [Member]	Dec. 31, 2013 Coal [Member]	Dec. 31, 2013 Agricultural Products [Member]	Feb. 12, 2010 Northern Sante Fe Corporation [Member]
Nature Of Operations [Line Items]
Rail Route Network Distance	32,500
Number of States in which Entity Operates	28
Number of Canadian Provinces In Which Entity Operates	2
Percentage of Total Freight Revenues		33.00%	27.00%	23.00%	17.00%
Business Combination, Step Acquisition, Remaining Equity Interest Acquired, Percentage						100.00%