ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

12 Months Ended

Dec. 31, 2023

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

13.ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

Changes in accumulated other comprehensive income (loss) by component, net of tax, consist of the following for the years ended December 31, 2023 and 2022:

					Non-				Accumulated
			Post-		Qualified				Other
	Pension		Retirement		Pension				Comprehensive
(In millions)	Benefits		Benefits		Benefits		Other		Income (Loss)
Balance at December 31, 2021	$	(39.1)	$	10.1	$	(0.7)	$	(1.2)	$	(30.9)
Amortization of prior service cost		(0.8)		(2.7)		—		—		(3.5)
Amortization of net gain (loss)		14.1		11.3		0.8		1.1		27.3
Foreign currency exchange		—		—		—		(0.4)		(0.4)
Other adjustments		—		—		—		0.6		0.6
Balance at December 31, 2022		(25.8)		18.7		0.1		0.1		(6.9)
Amortization of prior service cost		—		(2.8)		—		—		(2.8)
Amortization of net gain (loss)		5.5		(4.9)		(0.3)		—		0.3
Foreign currency exchange		—		—		—		(0.5)		(0.5)
Other adjustments		—		—		—		1.7		1.7
Balance at December 31, 2023	$	(20.3)	$	11.0	$	(0.2)	$	1.3	$	(8.2)

Other comprehensive income (loss) in the Consolidated Statements of Income and Comprehensive Income is shown net of tax benefit (expense) of $(1.2) million, $(9.3) million and $(8.1) million for the years ended December 2023, 2022 and 2021, respectively.