CONSOLIDATED INCOME STATEMENTS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement
Revenue	$ 3,699	$ 3,815	$ 7,405	$ 7,228
Expense
Labor and Fringe	741	684	1,464	1,376
Purchased Services and Other	684	647	1,372	1,322
Depreciation and Amortization	402	369	795	729
Fuel	312	446	676	777
Equipment and Other Rents	90	95	172	195
Gains on Property Dispositions	(12)	(129)	(20)	(156)
Total Expense	2,217	2,112	4,459	4,243
Operating Income	1,482	1,703	2,946	2,985
Interest Expense	(201)	(171)	(402)	(350)
Other Income - Net	31	26	72	52
Earnings Before Income Taxes	1,312	1,558	2,616	2,687
Income Tax Expense	(316)	(380)	(633)	(650)
Net Earnings	$ 996	$ 1,178	$ 1,983	$ 2,037
Per Common Share (Note 2)
Net Earnings Per Share, Basic (in dollars per share)	$ 0.49	$ 0.55	$ 0.97	$ 0.94
Net Earnings Per Share, Assuming Dilution (in dollars per share)	$ 0.49	$ 0.54	$ 0.97	$ 0.94
Average Shares Outstanding (in shares)	2,020	2,158	2,037	2,173
Average Shares Outstanding, Assuming Dilution (in shares)	2,025	2,163	2,042	2,178