CONSOLIDATED INCOME STATEMENTS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020		Jun. 30, 2021	Jun. 30, 2020
Income Statement
Revenue	$ 2,990	$ 2,255		$ 5,803	$ 5,110
Expense
Labor and Fringe	596	507		1,216	1,113
Materials, Supplies and Other	441	418		913	890
Depreciation	348	344		693	688
Fuel	194	91		384	283
Equipment and Other Rents	87	78		175	159
Gains on Property Dispositions	(367)	(11)		(370)	(29)
Total Expense	1,299	1,427		3,011	3,104
Operating Income	1,691	828		2,792	2,006
Interest Expense	(181)	(191)		(365)	(378)
Other Income - Net	20	15		40	37
Earnings Before Income Taxes	1,530	652		2,467	1,665
Income Tax Expense	(357)	(153)		(588)	(396)
Net Earnings	$ 1,173	$ 499		$ 1,879	$ 1,269
Per Common Share
Net Earnings Per Share, Basic (in dollars per share)	$ 0.52	$ 0.22	[1]	$ 0.83	$ 0.55	[1]
Net Earnings Per Share, Assuming Dilution (in dollars per share)	$ 0.52	$ 0.22	[1]	$ 0.82	$ 0.55	[1]
Average Shares Outstanding (in shares)	2,270	2,297	[1]	2,276	2,306	[1]
Average Shares Outstanding, Assuming Dilution (in shares)	2,275	2,301	[1]	2,281	2,311	[1]

[1] All prior period share and per share data has been retroactively adjusted to reflect the stock split effective June 28, 2021.