CONSOLIDATED INCOME STATEMENTS (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 24, 2010		Sep. 30, 2011		Sep. 24, 2010
Income Statement
Revenue	$ 2,963		$ 2,666		$ 8,792		$ 7,820
Expense
Labor and Fringe	765		731		2,294		2,181
Materials, Supplies and Other	562		509		1,649		1,579
Fuel	412		279		1,245		866
Depreciation	251		232		740		690
Equipment and Other Rents	95		90		287		279
Total Expense	2,085		1,841		6,215		5,595
Operating Income	878		825		2,577		2,225
Interest Expense	(138)		(131)		(412)		(408)
Other Income - Net (Note 8)	6		8		11		28
Earnings Before Income Taxes	746		702		2,176		1,845
Income Tax Expense (Note 9)	(282)		(288)		(811)		(712)
Net Earnings	$ 464		$ 414		$ 1,365		$ 1,133
Per Common Share (Note 2)
Net Earnings Per Share, Basic	$ 0.43	[1]	$ 0.36	[1]	$ 1.25	[1]	$ 0.98	[1]
Net Earnings Per Share, Assuming Dilution	$ 0.43	[1]	$ 0.36	[1]	$ 1.24	[1]	$ 0.97	[1]
Average Shares Outstanding	1,071	[1]	1,134	[1]	1,094	[1]	1,152	[1]
Average Shares Outstanding, Assuming Dilution	1,077	[1]	1,145	[1]	1,100	[1]	1,162	[1]
Cash Dividends Paid Per Common Share	$ 0.12		$ 0.08		$ 0.33		$ 0.24

[1] All share and per share data were retroactively restated to reflect the three-for-one stock split effective May 31, 2011.