Description of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Depreciation Provided Using the Straight-line Method Over the Estimated Useful Lives of the Assets

Depreciation is provided using the straight-line method over the estimated useful lives of the assets as follows:

Track structure:
Ties	40 years
Rail and other track material	67 years
Ballast	67 years
Bridges and trestles	67 years
Other	33 years
Buildings and other structures	33 to 45 years
Equipment, including rolling stock	4 to 25 years

Reconciliation of Weighted Average Shares Used for the Basic Computation and that Used for the Diluted Computation

A reconciliation of weighted average shares used for the basic computation and that used for the diluted computation is as follows:

	2015						2014
	Net Income		Shares		Per Share Amount		Net Income		Shares		Per Share Amount
Basic Earnings per Share
Net Income available to Common Shareholders	$	1,823					$	3,168
Basic Earnings per share	$	1,823		4,861	$	0.38	$	3,168		4,855	$	0.65
Diluted Earnings per Share
Net Income available to Common Shareholders	$	1,823					$	3,168
Preferred stock dividends		3						3
Effect of Dilutive Securities				72						75
Diluted Earnings per Share	$	1,826		4,933	$	0.37	$	3,171		4,930	$	0.64