The following table shows the changes in accumulated other comprehensive income (loss) by component. Amounts in parentheses indicate debits.


(Millions of dollars)	Pension Benefits		Other Benefits		Other		Total
Balance as of December 31, 2025	$	(209)	$	105	$	(1)	$	(105)
Other comprehensive loss before reclassifications, net of tax of $0	—		(1)		—		(1)
Amounts reclassified from accumulated other comprehensive income (loss):
Amortization of prior service credit(a)	(2)		(5)		—		(7)
Amortization of actuarial loss(a)	4		—		—		4


Tax effect	—		1		—		1
Other comprehensive income (loss)	2		(5)		—		(3)
Balance as of March 31, 2026	$	(207)	$	100	$	(1)	$	(108)


(Millions of dollars)	Pension Benefits		Other Benefits		Other		Total
Balance as of December 31, 2024	$	(235)	$	122	$	(1)	$	(114)
Other comprehensive income before reclassifications, net of tax of $2	5		3		—		8
Amounts reclassified from accumulated other comprehensive income (loss):
Amortization of prior service credit(a)	(2)		(6)		—		(8)
Amortization of actuarial loss(a)	4		—		—		4


Tax effect	—		1		—		1
Other comprehensive income (loss)	7		(2)		—		5
Balance as of March 31, 2025	$	(228)	$	120	$	(1)	$	(109)

(a)These accumulated other comprehensive loss components are included in the computation of net periodic benefit cost. See Note 21.