Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2026

Equity [Abstract]

Schedule of Changes in AOCI balance by Components

Changes in the AOCI balance by component are shown in the following table. Amounts in pension and other post-employment benefits reclassified to net earnings relate to the amortization of actuarial losses and are included in other income - net on the consolidated income statements. See Note 6, Employee Benefit Plans, for further information. Interest rate derivatives consist of forward starting interest rate swaps classified as cash flow hedges, which are now fully settled. See Note 7, Debt and Credit Agreements, for further information. Other primarily represents CSX's share of AOCI of equity method investees. Amounts reclassified in other to net earnings are included in purchased services and other or equipment and other rents on the consolidated income statements.

	Pension and Other Post-Employment Benefits		Interest Rate Derivatives		Other		Accumulated Other Comprehensive (Loss) Income
(Dollars in Millions)
Balance December 31, 2025, Net of Tax	$	(337)	$	152	$	(28)	$	(213)
Other Comprehensive Income (Loss)
Amounts Reclassified to Net Earnings	4		—		(2)		2
Tax Expense	(1)		—		—		(1)
Total Other Comprehensive Income (Loss)	3		—		(2)		1
Balance March 31, 2026, Net of Tax	$	(334)	$	152	$	(30)	$	(212)