CONSOLIDATED INCOME STATEMENTS (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2012	Apr. 01, 2011
Income Statement
Revenue	$ 2,966	$ 2,810
Expense
Labor and Fringe	770	765
Materials, Supplies and Other	542	530
Fuel	444	402
Depreciation	257	243
Equipment and Other Rents	97	97
Total Expense	2,110	2,037
Operating Income	856	773
Interest Expense	(144)	(140)
Other Income - Net (Note 8)	4	5
Earnings Before Income Taxes	716	638
Income Tax Expense	(267)	(243)
Net Earnings	$ 449	$ 395
Per Common Share (Note 2)
Net Earnings Per Share, Basic	$ 0.43	$ 0.36
Net Earnings Per Share, Assuming Dilution	$ 0.43	$ 0.35
Average Shares Outstanding	1,047	1,108
Average Shares Outstanding, Assuming Dilution	1,049	1,115
Cash Dividends Paid Per Common Share	$ 0.12	$ 0.09