CONSOLIDATED INCOME STATEMENTS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2024		Jun. 30, 2023	[1]	Jun. 30, 2024	[1]	Jun. 30, 2023
Income Statement
Revenue	$ 3,701		$ 3,699		$ 7,382		$ 7,405	[1]
Expense
Labor and Fringe	766		748		1,571		1,477	[1]
Purchased Services and Other	699		691		1,420		1,388	[1]
Depreciation and Amortization	410		404		820		799	[2]
Fuel	301		312		626		676	[1]
Equipment and Other Rents	85		90		169		172	[1]
Gains on Property Dispositions	(8)		(12)		(9)		(20)	[2]
Total Expense	2,253		2,233		4,597		4,492	[1]
Operating Income	1,448		1,466		2,785		2,913	[1]
Interest Expense	(209)		(201)		(419)		(402)	[1]
Other Income - Net	28		31		69		72	[1]
Earnings Before Income Taxes	1,267		1,296		2,435		2,583	[1]
Income Tax Expense	(304)		(312)		(592)		(625)	[1]
Net Earnings	$ 963	[3]	$ 984		$ 1,843		$ 1,958	[1]
Per Common Share (Note 2)
Net Earnings Per Share, Basic (in dollars per share)	$ 0.50		$ 0.49		$ 0.94		$ 0.96	[1]
Net Earnings Per Share, Assuming Dilution (in dollars per share)	$ 0.49		$ 0.49		$ 0.94		$ 0.96	[1]
Average Shares Outstanding (in shares)	1,944		2,020		1,951		2,037	[1]
Average Shares Outstanding, Assuming Dilution (in shares)	1,948		2,025		1,955		2,042	[1]

[1] See Note 11, Revision of Prior Period Financial Statements.

[2] See Note 11, Revision of Prior Period Financial Statements.

[3] See Note 11, Revision of Prior Period Financial Statements.