Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Railway operating revenues	$ 2,852	$ 2,506	$ 8,290	$ 7,216
Railway operating expenses
Compensation and benefits	609	578	1,844	1,786
Purchased services and rents	432	486	1,254	1,261
Fuel	208	126	573	399
Depreciation	297	293	883	867
Materials and other	170	183	418	500
Loss on asset disposal	0	0	0	385
Total railway operating expenses	1,716	1,666	4,972	5,198
Income from railway operations	1,136	840	3,318	2,018
Other income – net	14	39	56	110
Interest expense on debt	164	155	481	465
Income before income taxes	986	724	2,893	1,663
Income taxes	233	155	648	321
Net income	$ 753	$ 569	$ 2,245	$ 1,342
Earnings per share
Basic (in dollars per share)	$ 3.07	$ 2.23	$ 9.03	$ 5.24
Diluted (in dollars per share)	$ 3.06	$ 2.22	$ 8.99	$ 5.21

The amount of expense for contract services provided to the Company and rent paid for freight cars owned by other railroads or private companies net of rents received, including lease expenses, primarily for locomotives, railcars, containers, and trailers.

No definition available.