STATEMENTS OF CONSOLIDATED INCOME - USD ($) $ in Millions	12 Months Ended
STATEMENTS OF CONSOLIDATED INCOME - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Revenue	$ 88,661	$ 91,070	$ 90,958
Operating Expenses:
Compensation and benefits	48,605	48,093	47,092
Repairs and maintenance	3,107	2,940	2,828
Depreciation and amortization	3,746	3,609	3,366
Purchased transportation	10,588	13,589	13,640
Fuel	4,316	4,366	4,775
Other occupancy	2,269	2,117	2,019
Other expenses	8,163	7,888	8,097
Total Operating Expenses	80,794	82,602	81,817
Operating Profit	7,867	8,468	9,141
Other Income and (Expense):
Investment income (expense) and other	314	(160)	219
Interest expense	(1,017)	(866)	(787)
Total Other Income and (Expense)	(703)	(1,026)	(568)
Income Before Income Taxes	7,164	7,442	8,573
Income Tax Expense	1,592	1,660	1,865
Net Income	$ 5,572	$ 5,782	$ 6,708
Basic Earnings Per Share (in dollars per share)	$ 6.56	$ 6.76	$ 7.81
Diluted Earnings Per Share (in dollars per share)	$ 6.56	$ 6.75	$ 7.80

STATEMENTS OF CONSOLIDATED CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash Flows From Operating Activities:
Net Income	$ 5,572	$ 5,782	$ 6,708
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	3,746	3,609	3,366
Pension and postretirement benefit (income) expense	1,009	1,698	1,330
Pension and postretirement benefit contributions	(1,361)	(1,524)	(1,393)
Self-insurance reserves	236	44	57
Deferred tax (benefit) expense	(8)	(15)	199
Stock compensation expense	73	24	220
Other (gains) losses	113	262	265
Changes in assets and liabilities, net of effects of business acquisitions:
Accounts receivable	(382)	(566)	1,256
Other assets	65	70	87
Accounts payable	(190)	262	(1,377)
Accrued wages and withholdings	27	501	(296)
Other liabilities	(517)	(11)	(42)
Other operating activities	67	(14)	(142)
Net cash from operating activities	8,450	10,122	10,238
Cash Flows From Investing Activities:
Capital expenditures	(3,685)	(3,909)	(5,158)
Proceeds from disposal of businesses, property, plant and equipment	700	1,115	193
Purchases of marketable securities	(90)	(76)	(3,521)
Sales and maturities of marketable securities	293	2,748	2,701
Acquisitions, net of cash acquired	(1,968)	(71)	(1,329)
Other investing activities	15	(24)	(19)
Net cash used in investing activities	(4,735)	(217)	(7,133)
Cash Flows From Financing Activities:
Net change in short-term debt	0	(1,272)	1,272
Proceeds from long-term borrowings	4,153	2,785	3,429
Repayments of long-term borrowings	(2,069)	(2,487)	(2,429)
Purchases of common stock	(1,000)	(500)	(2,250)
Issuances of common stock	159	232	248
Dividends	(5,398)	(5,399)	(5,372)
Other financing activities	14	(209)	(432)
Net cash used in financing activities	(4,141)	(6,850)	(5,534)
Effect of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash	201	(149)	33
Net Increase (Decrease) In Cash, Cash Equivalents and Restricted Cash	(225)	2,906	(2,396)
Cash, Cash Equivalents and Restricted Cash:
Beginning of period	6,112	3,206	5,602
End of period	$ 5,887	$ 6,112	$ 3,206

CONSOLIDATED BALANCE SHEETS - USD ($) shares in Millions, $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Current Assets:
Cash and cash equivalents	$ 5,887	$ 6,112
Accounts receivable, net	11,209	10,871
Other current assets	1,949	2,327
Total Current Assets	19,045	19,310
Property, Plant and Equipment, Net	37,731	37,179
Operating Lease Right-Of-Use Assets	4,263	4,149
Goodwill	5,837	4,300
Intangible Assets, Net	4,021	3,064
Deferred Income Tax Assets	140	112
Other Non-Current Assets	2,053	1,956
Total Assets	73,090	70,070
Current Liabilities:
Current maturities of long-term debt and finance leases	608	1,838
Current maturities of operating leases	763	733
Accounts payable	6,633	6,302
Accrued wages and withholdings	3,715	3,655
Self-insurance reserves	1,137	1,086
Accrued group welfare and retirement plan contributions	1,389	1,390
Other current liabilities	1,375	1,437
Total Current Liabilities	15,620	16,441
Long-Term Debt and Finance Leases	23,519	19,446
Non-Current Operating Leases	3,700	3,635
Pension and Postretirement Benefit Obligations	6,567	6,859
Deferred Income Tax Liabilities	3,690	3,595
Other Non-Current Liabilities	3,739	3,351
Shareowners’ Equity:
Additional paid-in capital	275	136
Retained earnings	20,151	20,882
Accumulated other comprehensive loss	(4,208)	(4,309)
Deferred compensation obligations	5	7
Less: Treasury stock (0.1 shares in 2025 and 2024)	(5)	(7)
Total Equity for Controlling Interests	16,227	16,718
Noncontrolling Interests	28	25
Total Shareowners’ Equity	16,255	16,743
Total Liabilities and Shareowners’ Equity	$ 73,090	$ 70,070
Treasury stock (in shares)	0.1	0.1
Common Class A
Shareowners’ Equity:
Common stock	$ 1	$ 2
Common Class B
Shareowners’ Equity:
Common stock	$ 8	$ 7