CONSOLIDATED INCOME STATEMENTS (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 28, 2014	Mar. 29, 2013
Income Statement
Revenue	$ 3,012	$ 2,963
Expense
Labor and Fringe	814	767
Materials, Supplies and Other	629	507
Fuel	446	444
Depreciation	283	270
Equipment and Other Rents	101	95
Total Expense	2,273	2,083
Operating Income	739	880
Interest Expense	(140)	(147)
Other Income - Net	7	(3)
Earnings Before Income Taxes	606	730
Income Tax Expense	(208)	(268)
Net Earnings	$ 398	$ 462
Per Common Share
Net Earnings Per Share, Basic (in dollars per share)	$ 0.40	$ 0.45
Net Earnings Per Share, Assuming Dilution (in dollars per share)	$ 0.40	$ 0.45
Average Shares Outstanding (in shares)	1,008	1,022
Average Shares Outstanding, Assuming Dilution (in shares)	1,008	1,023
Cash Dividends Paid Per Common Share (in dollars per share)	$ 0.15	$ 0.14